54 files changed, 940 insertions, 209 deletions

diff --git a/src/Makefile.qt.include b/src/Makefile.qt.include
index a2ed4f47d..1f9a901d7 100644
--- a/src/Makefile.qt.include
+++ b/src/Makefile.qt.include
@@ -289,7 +289,7 @@ RES_ICONS = \
   qt/res/icons/warning.png \
   qt/res/icons/verify.png
 
-BITCOIN_QT_CPP = \
+BITCOIN_QT_BASE_CPP = \
   qt/bantablemodel.cpp \
   qt/bitcoinaddressvalidator.cpp \
   qt/bitcoinamountfield.cpp \
@@ -313,12 +313,9 @@ BITCOIN_QT_CPP = \
   qt/trafficgraphwidget.cpp \
   qt/utilitydialog.cpp
 
-if TARGET_WINDOWS
-BITCOIN_QT_CPP += qt/winshutdownmonitor.cpp
-endif
+BITCOIN_QT_WINDOWS_CPP = qt/winshutdownmonitor.cpp
 
-if ENABLE_WALLET
-BITCOIN_QT_CPP += \
+BITCOIN_QT_WALLET_CPP = \
   qt/addressbookpage.cpp \
   qt/addresstablemodel.cpp \
   qt/askpassphrasedialog.cpp \
@@ -345,6 +342,13 @@ BITCOIN_QT_CPP += \
   qt/walletmodel.cpp \
   qt/walletmodeltransaction.cpp \
   qt/walletview.cpp
+
+BITCOIN_QT_CPP = $(BITCOIN_QT_BASE_CPP)
+if TARGET_WINDOWS
+BITCOIN_QT_CPP += $(BITCOIN_QT_WINDOWS_CPP)
+endif
+if ENABLE_WALLET
+BITCOIN_QT_CPP += $(BITCOIN_QT_WALLET_CPP)
 endif
 
 RES_IMAGES = 
@@ -413,7 +417,7 @@ $(srcdir)/qt/bitcoinstrings.cpp: $(libbitcoin_server_a_SOURCES) $(libbitcoin_wal
 	@test -n $(XGETTEXT) || echo "xgettext is required for updating translations"
 	$(AM_V_GEN) cd $(srcdir); XGETTEXT=$(XGETTEXT) PACKAGE_NAME="$(PACKAGE_NAME)" COPYRIGHT_HOLDERS="$(COPYRIGHT_HOLDERS)" COPYRIGHT_HOLDERS_SUBSTITUTION="$(COPYRIGHT_HOLDERS_SUBSTITUTION)" $(PYTHON) ../share/qt/extract_strings_qt.py $^
 
-translate: $(srcdir)/qt/bitcoinstrings.cpp $(QT_FORMS_UI) $(QT_FORMS_UI) $(BITCOIN_QT_CPP) $(BITCOIN_QT_H) $(BITCOIN_MM)
+translate: $(srcdir)/qt/bitcoinstrings.cpp $(QT_FORMS_UI) $(QT_FORMS_UI) $(BITCOIN_QT_BASE_CPP) $(BITCOIN_QT_WINDOWS_CPP) $(BITCOIN_QT_WALLET_CPP) $(BITCOIN_QT_H) $(BITCOIN_MM)
 	@test -n $(LUPDATE) || echo "lupdate is required for updating translations"
 	$(AM_V_GEN) QT_SELECT=$(QT_SELECT) $(LUPDATE) $^ -locations relative -no-obsolete -ts $(srcdir)/qt/locale/bitcoin_en.ts
 
diff --git a/src/bitcoin-tx.cpp b/src/bitcoin-tx.cpp
index cb863bda1..e09afd632 100644
--- a/src/bitcoin-tx.cpp
+++ b/src/bitcoin-tx.cpp
@@ -164,7 +164,7 @@ static void RegisterLoad(const string& strInput)
 static void MutateTxVersion(CMutableTransaction& tx, const string& cmdVal)
 {
     int64_t newVersion = atoi64(cmdVal);
-    if (newVersion < 1 || newVersion > CTransaction::CURRENT_VERSION)
+    if (newVersion < 1 || newVersion > CTransaction::MAX_STANDARD_VERSION)
         throw runtime_error("Invalid TX version requested");
 
     tx.nVersion = (int) newVersion;
diff --git a/src/blockencodings.cpp b/src/blockencodings.cpp
index df237f8f2..93d3fa372 100644
--- a/src/blockencodings.cpp
+++ b/src/blockencodings.cpp
@@ -17,7 +17,7 @@
 
 #define MIN_TRANSACTION_BASE_SIZE (::GetSerializeSize(CTransaction(), SER_NETWORK, PROTOCOL_VERSION | SERIALIZE_TRANSACTION_NO_WITNESS))
 
-CBlockHeaderAndShortTxIDs::CBlockHeaderAndShortTxIDs(const CBlock& block) :
+CBlockHeaderAndShortTxIDs::CBlockHeaderAndShortTxIDs(const CBlock& block, bool fUseWTXID) :
         nonce(GetRand(std::numeric_limits<uint64_t>::max())),
         shorttxids(block.vtx.size() - 1), prefilledtxn(1), header(block) {
     FillShortTxIDSelector();
@@ -25,7 +25,7 @@ CBlockHeaderAndShortTxIDs::CBlockHeaderAndShortTxIDs(const CBlock& block) :
     prefilledtxn[0] = {0, block.vtx[0]};
     for (size_t i = 1; i < block.vtx.size(); i++) {
         const CTransaction& tx = block.vtx[i];
-        shorttxids[i - 1] = GetShortID(tx.GetHash());
+        shorttxids[i - 1] = GetShortID(fUseWTXID ? tx.GetWitnessHash() : tx.GetHash());
     }
 }
 
diff --git a/src/blockencodings.h b/src/blockencodings.h
index 349fcbd50..99b1cb140 100644
--- a/src/blockencodings.h
+++ b/src/blockencodings.h
@@ -146,7 +146,7 @@ public:
     // Dummy for deserialization
     CBlockHeaderAndShortTxIDs() {}
 
-    CBlockHeaderAndShortTxIDs(const CBlock& block);
+    CBlockHeaderAndShortTxIDs(const CBlock& block, bool fUseWTXID);
 
     uint64_t GetShortID(const uint256& txhash) const;
 
diff --git a/src/chainparams.cpp b/src/chainparams.cpp
index e6be1b5d5..5850016ae 100644
--- a/src/chainparams.cpp
+++ b/src/chainparams.cpp
@@ -91,10 +91,10 @@ public:
         consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = 1462060800; // May 1st, 2016
         consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nTimeout = 1493596800; // May 1st, 2017
 
-        // Deployment of SegWit (BIP141 and BIP143)
+        // Deployment of SegWit (BIP141, BIP143, and BIP147)
         consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].bit = 1;
-        consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nStartTime = 0;
-        consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout = 0; // Never / undefined
+        consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nStartTime = 1479168000; // November 15th, 2016.
+        consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout = 1510704000; // November 15th, 2017.
 
         /**
          * The message start string is designed to be unlikely to occur in normal data.
@@ -113,12 +113,13 @@ public:
         assert(consensus.hashGenesisBlock == uint256S("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"));
         assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
 
-        vSeeds.push_back(CDNSSeedData("bitcoin.sipa.be", "seed.bitcoin.sipa.be", true)); // Pieter Wuille
-        vSeeds.push_back(CDNSSeedData("bluematt.me", "dnsseed.bluematt.me")); // Matt Corallo
+        // Note that of those with the service bits flag, most only support a subset of possible options
+        vSeeds.push_back(CDNSSeedData("bitcoin.sipa.be", "seed.bitcoin.sipa.be", true)); // Pieter Wuille, only supports x1, x5, x9, and xd
+        vSeeds.push_back(CDNSSeedData("bluematt.me", "dnsseed.bluematt.me", true)); // Matt Corallo, only supports x9
         vSeeds.push_back(CDNSSeedData("dashjr.org", "dnsseed.bitcoin.dashjr.org")); // Luke Dashjr
-        vSeeds.push_back(CDNSSeedData("bitcoinstats.com", "seed.bitcoinstats.com")); // Christian Decker
+        vSeeds.push_back(CDNSSeedData("bitcoinstats.com", "seed.bitcoinstats.com", true)); // Christian Decker, supports x1 - xf
         vSeeds.push_back(CDNSSeedData("xf2.org", "bitseed.xf2.org")); // Jeff Garzik
-        vSeeds.push_back(CDNSSeedData("bitcoin.jonasschnelli.ch", "seed.bitcoin.jonasschnelli.ch", true)); // Jonas Schnelli
+        vSeeds.push_back(CDNSSeedData("bitcoin.jonasschnelli.ch", "seed.bitcoin.jonasschnelli.ch", true)); // Jonas Schnelli, only supports x1, x5, x9, and xd
 
         base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,0);
         base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5);
@@ -132,7 +133,6 @@ public:
         fDefaultConsistencyChecks = false;
         fRequireStandard = true;
         fMineBlocksOnDemand = false;
-        fTestnetToBeDeprecatedFieldRPC = false;
 
         checkpointData = (CCheckpointData) {
             boost::assign::map_list_of
@@ -186,7 +186,7 @@ public:
         consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = 1456790400; // March 1st, 2016
         consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nTimeout = 1493596800; // May 1st, 2017
 
-        // Deployment of SegWit (BIP141 and BIP143)
+        // Deployment of SegWit (BIP141, BIP143, and BIP147)
         consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].bit = 1;
         consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nStartTime = 1462060800; // May 1st 2016
         consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout = 1493596800; // May 1st 2017
@@ -223,7 +223,6 @@ public:
         fDefaultConsistencyChecks = false;
         fRequireStandard = false;
         fMineBlocksOnDemand = false;
-        fTestnetToBeDeprecatedFieldRPC = true;
 
         checkpointData = (CCheckpointData) {
             boost::assign::map_list_of
@@ -285,7 +284,6 @@ public:
         fDefaultConsistencyChecks = true;
         fRequireStandard = false;
         fMineBlocksOnDemand = true;
-        fTestnetToBeDeprecatedFieldRPC = false;
 
         checkpointData = (CCheckpointData){
             boost::assign::map_list_of
diff --git a/src/chainparams.h b/src/chainparams.h
index 0c3820b7c..633fbd512 100644
--- a/src/chainparams.h
+++ b/src/chainparams.h
@@ -67,8 +67,6 @@ public:
     uint64_t PruneAfterHeight() const { return nPruneAfterHeight; }
     /** Make miner stop after a block is found. In RPC, don't return until nGenProcLimit blocks are generated */
     bool MineBlocksOnDemand() const { return fMineBlocksOnDemand; }
-    /** In the future use NetworkIDString() for RPC fields */
-    bool TestnetToBeDeprecatedFieldRPC() const { return fTestnetToBeDeprecatedFieldRPC; }
     /** Return the BIP70 network string (main, test or regtest) */
     std::string NetworkIDString() const { return strNetworkID; }
     const std::vector<CDNSSeedData>& DNSSeeds() const { return vSeeds; }
@@ -91,7 +89,6 @@ protected:
     bool fDefaultConsistencyChecks;
     bool fRequireStandard;
     bool fMineBlocksOnDemand;
-    bool fTestnetToBeDeprecatedFieldRPC;
     CCheckpointData checkpointData;
 };
 
diff --git a/src/consensus/params.h b/src/consensus/params.h
index 5b2f49184..0e73cace8 100644
--- a/src/consensus/params.h
+++ b/src/consensus/params.h
@@ -16,7 +16,7 @@ enum DeploymentPos
 {
     DEPLOYMENT_TESTDUMMY,
     DEPLOYMENT_CSV, // Deployment of BIP68, BIP112, and BIP113.
-    DEPLOYMENT_SEGWIT, // Deployment of BIP141 and BIP143
+    DEPLOYMENT_SEGWIT, // Deployment of BIP141, BIP143, and BIP147.
     // NOTE: Also add new deployments to VersionBitsDeploymentInfo in versionbits.cpp
     MAX_VERSION_BITS_DEPLOYMENTS
 };
diff --git a/src/core_write.cpp b/src/core_write.cpp
index 6f9e2266a..ea01ddc10 100644
--- a/src/core_write.cpp
+++ b/src/core_write.cpp
@@ -151,11 +151,13 @@ void ScriptPubKeyToUniv(const CScript& scriptPubKey,
 void TxToUniv(const CTransaction& tx, const uint256& hashBlock, UniValue& entry)
 {
     entry.pushKV("txid", tx.GetHash().GetHex());
+    entry.pushKV("hash", tx.GetWitnessHash().GetHex());
     entry.pushKV("version", tx.nVersion);
     entry.pushKV("locktime", (int64_t)tx.nLockTime);
 
     UniValue vin(UniValue::VARR);
-    BOOST_FOREACH(const CTxIn& txin, tx.vin) {
+    for (unsigned int i = 0; i < tx.vin.size(); i++) {
+        const CTxIn& txin = tx.vin[i];
         UniValue in(UniValue::VOBJ);
         if (tx.IsCoinBase())
             in.pushKV("coinbase", HexStr(txin.scriptSig.begin(), txin.scriptSig.end()));
@@ -166,6 +168,13 @@ void TxToUniv(const CTransaction& tx, const uint256& hashBlock, UniValue& entry)
             o.pushKV("asm", ScriptToAsmStr(txin.scriptSig, true));
             o.pushKV("hex", HexStr(txin.scriptSig.begin(), txin.scriptSig.end()));
             in.pushKV("scriptSig", o);
+            if (!tx.wit.IsNull() && i < tx.wit.vtxinwit.size() && !tx.wit.vtxinwit[i].IsNull()) {
+                UniValue txinwitness(UniValue::VARR);
+                for (const auto& item : tx.wit.vtxinwit[i].scriptWitness.stack) {
+                    txinwitness.push_back(HexStr(item.begin(), item.end()));
+                }
+                in.pushKV("txinwitness", txinwitness);
+            }
         }
         in.pushKV("sequence", (int64_t)txin.nSequence);
         vin.push_back(in);
diff --git a/src/main.cpp b/src/main.cpp
index 437e97238..ad4c3fce6 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2015 The Bitcoin Core developers
+// Copyright (c) 2009-2016 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -289,10 +289,21 @@ struct CNodeState {
     bool fPreferHeaders;
     //! Whether this peer wants invs or cmpctblocks (when possible) for block announcements.
     bool fPreferHeaderAndIDs;
-    //! Whether this peer will send us cmpctblocks if we request them
+    /**
+      * Whether this peer will send us cmpctblocks if we request them.
+      * This is not used to gate request logic, as we really only care about fSupportsDesiredCmpctVersion,
+      * but is used as a flag to "lock in" the version of compact blocks (fWantsCmpctWitness) we send.
+      */
     bool fProvidesHeaderAndIDs;
     //! Whether this peer can give us witnesses
     bool fHaveWitness;
+    //! Whether this peer wants witnesses in cmpctblocks/blocktxns
+    bool fWantsCmpctWitness;
+    /**
+     * If we've announced NODE_WITNESS to this peer: whether the peer sends witnesses in cmpctblocks/blocktxns,
+     * otherwise: whether this peer sends non-witnesses in cmpctblocks/blocktxns.
+     */
+    bool fSupportsDesiredCmpctVersion;
 
     CNodeState() {
         fCurrentlyConnected = false;
@@ -313,6 +324,8 @@ struct CNodeState {
         fPreferHeaderAndIDs = false;
         fProvidesHeaderAndIDs = false;
         fHaveWitness = false;
+        fWantsCmpctWitness = false;
+        fSupportsDesiredCmpctVersion = false;
     }
 };
 
@@ -467,8 +480,8 @@ void UpdateBlockAvailability(NodeId nodeid, const uint256 &hash) {
 }
 
 void MaybeSetPeerAsAnnouncingHeaderAndIDs(const CNodeState* nodestate, CNode* pfrom, CConnman& connman) {
-    if (pfrom->GetLocalServices() & NODE_WITNESS) {
-        // Don't ever request compact blocks when segwit is enabled.
+    if (!nodestate->fSupportsDesiredCmpctVersion) {
+        // Never ask from peers who can't provide witnesses.
         return;
     }
     if (nodestate->fProvidesHeaderAndIDs) {
@@ -476,7 +489,7 @@ void MaybeSetPeerAsAnnouncingHeaderAndIDs(const CNodeState* nodestate, CNode* pf
             if (nodeid == pfrom->GetId())
                 return;
         bool fAnnounceUsingCMPCTBLOCK = false;
-        uint64_t nCMPCTBLOCKVersion = 1;
+        uint64_t nCMPCTBLOCKVersion = (pfrom->GetLocalServices() & NODE_WITNESS) ? 2 : 1;
         if (lNodesAnnouncingHeaderAndIDs.size() >= 3) {
             // As per BIP152, we only get 3 of our peers to announce
             // blocks using compact encodings.
@@ -1260,6 +1273,10 @@ bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState& state, const C
         if (fRequireStandard && !AreInputsStandard(tx, view))
             return state.Invalid(false, REJECT_NONSTANDARD, "bad-txns-nonstandard-inputs");
 
+        // Check for non-standard witness in P2WSH
+        if (!tx.wit.IsNull() && fRequireStandard && !IsWitnessStandard(tx, view))
+            return state.DoS(0, false, REJECT_NONSTANDARD, "bad-witness-nonstandard", true);
+
         int64_t nSigOpsCost = GetTransactionSigOpCost(tx, view, STANDARD_SCRIPT_VERIFY_FLAGS);
 
         CAmount nValueOut = tx.GetValueOut();
@@ -4358,11 +4375,11 @@ bool LoadExternalBlockFile(const CChainParams& chainparams, FILE* fileIn, CDiskB
             unsigned int nSize = 0;
             try {
                 // locate a header
-                unsigned char buf[MESSAGE_START_SIZE];
+                unsigned char buf[CMessageHeader::MESSAGE_START_SIZE];
                 blkdat.FindByte(chainparams.MessageStart()[0]);
                 nRewind = blkdat.GetPos()+1;
                 blkdat >> FLATDATA(buf);
-                if (memcmp(buf, chainparams.MessageStart(), MESSAGE_START_SIZE))
+                if (memcmp(buf, chainparams.MessageStart(), CMessageHeader::MESSAGE_START_SIZE))
                     continue;
                 // read size
                 blkdat >> nSize;
@@ -4856,11 +4873,12 @@ void static ProcessGetData(CNode* pfrom, const Consensus::Params& consensusParam
                         // they wont have a useful mempool to match against a compact block,
                         // and we don't feel like constructing the object for them, so
                         // instead we respond with the full, non-compact block.
+                        bool fPeerWantsWitness = State(pfrom->GetId())->fWantsCmpctWitness;
                         if (mi->second->nHeight >= chainActive.Height() - 10) {
-                            CBlockHeaderAndShortTxIDs cmpctblock(block);
-                            pfrom->PushMessageWithFlag(SERIALIZE_TRANSACTION_NO_WITNESS, NetMsgType::CMPCTBLOCK, cmpctblock);
+                            CBlockHeaderAndShortTxIDs cmpctblock(block, fPeerWantsWitness);
+                            pfrom->PushMessageWithFlag(fPeerWantsWitness ? 0 : SERIALIZE_TRANSACTION_NO_WITNESS, NetMsgType::CMPCTBLOCK, cmpctblock);
                         } else
-                            pfrom->PushMessageWithFlag(SERIALIZE_TRANSACTION_NO_WITNESS, NetMsgType::BLOCK, block);
+                            pfrom->PushMessageWithFlag(fPeerWantsWitness ? 0 : SERIALIZE_TRANSACTION_NO_WITNESS, NetMsgType::BLOCK, block);
                     }
 
                     // Trigger the peer node to send a getblocks request for the next batch of inventory
@@ -4922,7 +4940,7 @@ void static ProcessGetData(CNode* pfrom, const Consensus::Params& consensusParam
 
 uint32_t GetFetchFlags(CNode* pfrom, CBlockIndex* pprev, const Consensus::Params& chainparams) {
     uint32_t nFetchFlags = 0;
-    if (IsWitnessEnabled(pprev, chainparams) && State(pfrom->GetId())->fHaveWitness) {
+    if ((pfrom->GetLocalServices() & NODE_WITNESS) && State(pfrom->GetId())->fHaveWitness) {
         nFetchFlags |= MSG_WITNESS_FLAG;
     }
     return nFetchFlags;
@@ -5128,13 +5146,16 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
             pfrom->PushMessage(NetMsgType::SENDHEADERS);
         }
         if (pfrom->nVersion >= SHORT_IDS_BLOCKS_VERSION) {
-            // Tell our peer we are willing to provide version-1 cmpctblocks
+            // Tell our peer we are willing to provide version 1 or 2 cmpctblocks
             // However, we do not request new block announcements using
             // cmpctblock messages.
             // We send this to non-NODE NETWORK peers as well, because
             // they may wish to request compact blocks from us
             bool fAnnounceUsingCMPCTBLOCK = false;
-            uint64_t nCMPCTBLOCKVersion = 1;
+            uint64_t nCMPCTBLOCKVersion = 2;
+            if (pfrom->GetLocalServices() & NODE_WITNESS)
+                pfrom->PushMessage(NetMsgType::SENDCMPCT, fAnnounceUsingCMPCTBLOCK, nCMPCTBLOCKVersion);
+            nCMPCTBLOCKVersion = 1;
             pfrom->PushMessage(NetMsgType::SENDCMPCT, fAnnounceUsingCMPCTBLOCK, nCMPCTBLOCKVersion);
         }
     }
@@ -5195,12 +5216,23 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
     else if (strCommand == NetMsgType::SENDCMPCT)
     {
         bool fAnnounceUsingCMPCTBLOCK = false;
-        uint64_t nCMPCTBLOCKVersion = 1;
+        uint64_t nCMPCTBLOCKVersion = 0;
         vRecv >> fAnnounceUsingCMPCTBLOCK >> nCMPCTBLOCKVersion;
-        if (nCMPCTBLOCKVersion == 1) {
+        if (nCMPCTBLOCKVersion == 1 || ((pfrom->GetLocalServices() & NODE_WITNESS) && nCMPCTBLOCKVersion == 2)) {
             LOCK(cs_main);
-            State(pfrom->GetId())->fProvidesHeaderAndIDs = true;
-            State(pfrom->GetId())->fPreferHeaderAndIDs = fAnnounceUsingCMPCTBLOCK;
+            // fProvidesHeaderAndIDs is used to "lock in" version of compact blocks we send (fWantsCmpctWitness)
+            if (!State(pfrom->GetId())->fProvidesHeaderAndIDs) {
+                State(pfrom->GetId())->fProvidesHeaderAndIDs = true;
+                State(pfrom->GetId())->fWantsCmpctWitness = nCMPCTBLOCKVersion == 2;
+            }
+            if (State(pfrom->GetId())->fWantsCmpctWitness == (nCMPCTBLOCKVersion == 2)) // ignore later version announces
+                State(pfrom->GetId())->fPreferHeaderAndIDs = fAnnounceUsingCMPCTBLOCK;
+            if (!State(pfrom->GetId())->fSupportsDesiredCmpctVersion) {
+                if (pfrom->GetLocalServices() & NODE_WITNESS)
+                    State(pfrom->GetId())->fSupportsDesiredCmpctVersion = (nCMPCTBLOCKVersion == 2);
+                else
+                    State(pfrom->GetId())->fSupportsDesiredCmpctVersion = (nCMPCTBLOCKVersion == 1);
+            }
         }
     }
 
@@ -5258,7 +5290,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
                         nodestate->nBlocksInFlight < MAX_BLOCKS_IN_TRANSIT_PER_PEER &&
                         (!IsWitnessEnabled(chainActive.Tip(), chainparams.GetConsensus()) || State(pfrom->GetId())->fHaveWitness)) {
                         inv.type |= nFetchFlags;
-                        if (nodestate->fProvidesHeaderAndIDs && !(pfrom->GetLocalServices() & NODE_WITNESS))
+                        if (nodestate->fSupportsDesiredCmpctVersion)
                             vToFetch.push_back(CInv(MSG_CMPCT_BLOCK, inv.hash));
                         else
                             vToFetch.push_back(inv);
@@ -5386,7 +5418,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
             }
             resp.txn[i] = block.vtx[req.indexes[i]];
         }
-        pfrom->PushMessageWithFlag(SERIALIZE_TRANSACTION_NO_WITNESS, NetMsgType::BLOCKTXN, resp);
+        pfrom->PushMessageWithFlag(State(pfrom->GetId())->fWantsCmpctWitness ? 0 : SERIALIZE_TRANSACTION_NO_WITNESS, NetMsgType::BLOCKTXN, resp);
     }
 
 
@@ -5650,7 +5682,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
                 // We requested this block for some reason, but our mempool will probably be useless
                 // so we just grab the block via normal getdata
                 std::vector<CInv> vInv(1);
-                vInv[0] = CInv(MSG_BLOCK, cmpctblock.header.GetHash());
+                vInv[0] = CInv(MSG_BLOCK | GetFetchFlags(pfrom, pindex->pprev, chainparams.GetConsensus()), cmpctblock.header.GetHash());
                 pfrom->PushMessage(NetMsgType::GETDATA, vInv);
             }
             return true;
@@ -5662,6 +5694,12 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
 
         CNodeState *nodestate = State(pfrom->GetId());
 
+        if (IsWitnessEnabled(pindex->pprev, chainparams.GetConsensus()) && !nodestate->fSupportsDesiredCmpctVersion) {
+            // Don't bother trying to process compact blocks from v1 peers
+            // after segwit activates.
+            return true;
+        }
+
         // We want to be a bit conservative just to be extra careful about DoS
         // possibilities in compact block processing...
         if (pindex->nHeight <= chainActive.Height() + 2) {
@@ -5688,7 +5726,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
                 } else if (status == READ_STATUS_FAILED) {
                     // Duplicate txindexes, the block is now in-flight, so just request it
                     std::vector<CInv> vInv(1);
-                    vInv[0] = CInv(MSG_BLOCK, cmpctblock.header.GetHash());
+                    vInv[0] = CInv(MSG_BLOCK | GetFetchFlags(pfrom, pindex->pprev, chainparams.GetConsensus()), cmpctblock.header.GetHash());
                     pfrom->PushMessage(NetMsgType::GETDATA, vInv);
                     return true;
                 }
@@ -5715,7 +5753,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
                 // We requested this block, but its far into the future, so our
                 // mempool will probably be useless - request the block normally
                 std::vector<CInv> vInv(1);
-                vInv[0] = CInv(MSG_BLOCK, cmpctblock.header.GetHash());
+                vInv[0] = CInv(MSG_BLOCK | GetFetchFlags(pfrom, pindex->pprev, chainparams.GetConsensus()), cmpctblock.header.GetHash());
                 pfrom->PushMessage(NetMsgType::GETDATA, vInv);
                 return true;
             } else {
@@ -5757,7 +5795,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
         } else if (status == READ_STATUS_FAILED) {
             // Might have collided, fall back to getdata now :(
             std::vector<CInv> invs;
-            invs.push_back(CInv(MSG_BLOCK, resp.blockhash));
+            invs.push_back(CInv(MSG_BLOCK | GetFetchFlags(pfrom, chainActive.Tip(), chainparams.GetConsensus()), resp.blockhash));
             pfrom->PushMessage(NetMsgType::GETDATA, invs);
         } else {
             CValidationState state;
@@ -5906,7 +5944,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
                             pindexLast->GetBlockHash().ToString(), pindexLast->nHeight);
                 }
                 if (vGetData.size() > 0) {
-                    if (nodestate->fProvidesHeaderAndIDs && vGetData.size() == 1 && mapBlocksInFlight.size() == 1 && pindexLast->pprev->IsValid(BLOCK_VALID_CHAIN) && !(pfrom->GetLocalServices() & NODE_WITNESS)) {
+                    if (nodestate->fSupportsDesiredCmpctVersion && vGetData.size() == 1 && mapBlocksInFlight.size() == 1 && pindexLast->pprev->IsValid(BLOCK_VALID_CHAIN)) {
                         // We seem to be rather well-synced, so it appears pfrom was the first to provide us
                         // with this block! Let's get them to announce using compact blocks in the future.
                         MaybeSetPeerAsAnnouncingHeaderAndIDs(nodestate, pfrom, connman);
@@ -6232,7 +6270,7 @@ bool ProcessMessages(CNode* pfrom, CConnman& connman)
         it++;
 
         // Scan for message start
-        if (memcmp(msg.hdr.pchMessageStart, chainparams.MessageStart(), MESSAGE_START_SIZE) != 0) {
+        if (memcmp(msg.hdr.pchMessageStart, chainparams.MessageStart(), CMessageHeader::MESSAGE_START_SIZE) != 0) {
             LogPrintf("PROCESSMESSAGE: INVALID MESSAGESTART %s peer=%d\n", SanitizeString(msg.hdr.GetCommand()), pfrom->id);
             fOk = false;
             break;
@@ -6536,8 +6574,8 @@ bool SendMessages(CNode* pto, CConnman& connman)
                     //TODO: Shouldn't need to reload block from disk, but requires refactor
                     CBlock block;
                     assert(ReadBlockFromDisk(block, pBestIndex, consensusParams));
-                    CBlockHeaderAndShortTxIDs cmpctblock(block);
-                    pto->PushMessageWithFlag(SERIALIZE_TRANSACTION_NO_WITNESS, NetMsgType::CMPCTBLOCK, cmpctblock);
+                    CBlockHeaderAndShortTxIDs cmpctblock(block, state.fWantsCmpctWitness);
+                    pto->PushMessageWithFlag(state.fWantsCmpctWitness ? 0 : SERIALIZE_TRANSACTION_NO_WITNESS, NetMsgType::CMPCTBLOCK, cmpctblock);
                     state.pindexBestHeaderSent = pBestIndex;
                 } else if (state.fPreferHeaders) {
                     if (vHeaders.size() > 1) {
diff --git a/src/net.cpp b/src/net.cpp
index 770e2d295..cdd3076a2 100644
--- a/src/net.cpp
+++ b/src/net.cpp
@@ -629,6 +629,7 @@ void CNode::copyStats(CNodeStats &stats)
 {
     stats.nodeid = this->GetId();
     X(nServices);
+    X(addr);
     X(fRelayTxes);
     X(nLastSend);
     X(nLastRecv);
@@ -1453,6 +1454,7 @@ static std::string GetDNSHost(const CDNSSeedData& data, ServiceFlags* requiredSe
         return data.host;
     }
 
+    // See chainparams.cpp, most dnsseeds only support one or two possible servicebits hostnames
     return strprintf("x%x.%s", *requiredServiceBits, data.host);
 }
 
@@ -1620,7 +1622,6 @@ void CConnman::ThreadOpenConnections()
                 }
             }
         }
-        assert(nOutbound <= (nMaxOutbound + nMaxFeeler));
 
         // Feeler Connections
         //
diff --git a/src/net.h b/src/net.h
index d0b277362..67f0abe4b 100644
--- a/src/net.h
+++ b/src/net.h
@@ -505,6 +505,7 @@ public:
     double dPingWait;
     double dPingMin;
     std::string addrLocal;
+    CAddress addr;
 };
 
 
diff --git a/src/policy/policy.cpp b/src/policy/policy.cpp
index 48080abc7..ae42b2bd7 100644
--- a/src/policy/policy.cpp
+++ b/src/policy/policy.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2015 The Bitcoin developers
+// Copyright (c) 2009-2016 The Bitcoin developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -154,6 +154,58 @@ bool AreInputsStandard(const CTransaction& tx, const CCoinsViewCache& mapInputs)
     return true;
 }
 
+bool IsWitnessStandard(const CTransaction& tx, const CCoinsViewCache& mapInputs)
+{
+    if (tx.IsCoinBase())
+        return true; // Coinbases are skipped
+
+    for (unsigned int i = 0; i < tx.vin.size(); i++)
+    {
+        // We don't care if witness for this input is empty, since it must not be bloated.
+        // If the script is invalid without witness, it would be caught sooner or later during validation.
+        if (tx.wit.vtxinwit[i].IsNull())
+            continue;
+
+        const CTxOut &prev = mapInputs.GetOutputFor(tx.vin[i]);
+
+        // get the scriptPubKey corresponding to this input:
+        CScript prevScript = prev.scriptPubKey;
+
+        if (prevScript.IsPayToScriptHash()) {
+            std::vector <std::vector<unsigned char> > stack;
+            // If the scriptPubKey is P2SH, we try to extract the redeemScript casually by converting the scriptSig
+            // into a stack. We do not check IsPushOnly nor compare the hash as these will be done later anyway.
+            // If the check fails at this stage, we know that this txid must be a bad one.
+            if (!EvalScript(stack, tx.vin[i].scriptSig, SCRIPT_VERIFY_NONE, BaseSignatureChecker(), SIGVERSION_BASE))
+                return false;
+            if (stack.empty())
+                return false;
+            prevScript = CScript(stack.back().begin(), stack.back().end());
+        }
+
+        int witnessversion = 0;
+        std::vector<unsigned char> witnessprogram;
+
+        // Non-witness program must not be associated with any witness
+        if (!prevScript.IsWitnessProgram(witnessversion, witnessprogram))
+            return false;
+
+        // Check P2WSH standard limits
+        if (witnessversion == 0 && witnessprogram.size() == 32) {
+            if (tx.wit.vtxinwit[i].scriptWitness.stack.back().size() > MAX_STANDARD_P2WSH_SCRIPT_SIZE)
+                return false;
+            size_t sizeWitnessStack = tx.wit.vtxinwit[i].scriptWitness.stack.size() - 1;
+            if (sizeWitnessStack > MAX_STANDARD_P2WSH_STACK_ITEMS)
+                return false;
+            for (unsigned int j = 0; j < sizeWitnessStack; j++) {
+                if (tx.wit.vtxinwit[i].scriptWitness.stack[j].size() > MAX_STANDARD_P2WSH_STACK_ITEM_SIZE)
+                    return false;
+            }
+        }
+    }
+    return true;
+}
+
 unsigned int nBytesPerSigOp = DEFAULT_BYTES_PER_SIGOP;
 
 int64_t GetVirtualTransactionSize(int64_t nWeight, int64_t nSigOpCost)
diff --git a/src/policy/policy.h b/src/policy/policy.h
index 9d6ff1233..814e6c0b6 100644
--- a/src/policy/policy.h
+++ b/src/policy/policy.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2015 The Bitcoin developers
+// Copyright (c) 2009-2016 The Bitcoin developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -30,6 +30,12 @@ static const unsigned int MAX_STANDARD_TX_SIGOPS_COST = MAX_BLOCK_SIGOPS_COST/5;
 static const unsigned int DEFAULT_MAX_MEMPOOL_SIZE = 300;
 /** Default for -bytespersigop */
 static const unsigned int DEFAULT_BYTES_PER_SIGOP = 20;
+/** The maximum number of witness stack items in a standard P2WSH script */
+static const unsigned int MAX_STANDARD_P2WSH_STACK_ITEMS = 100;
+/** The maximum size of each witness stack item in a standard P2WSH script */
+static const unsigned int MAX_STANDARD_P2WSH_STACK_ITEM_SIZE = 80;
+/** The maximum size of a standard witnessScript */
+static const unsigned int MAX_STANDARD_P2WSH_SCRIPT_SIZE = 3600;
 /**
  * Standard script verification flags that standard transactions will comply
  * with. However scripts violating these flags may still be present in valid
@@ -48,7 +54,8 @@ static const unsigned int STANDARD_SCRIPT_VERIFY_FLAGS = MANDATORY_SCRIPT_VERIFY
                                                          SCRIPT_VERIFY_CHECKSEQUENCEVERIFY |
                                                          SCRIPT_VERIFY_LOW_S |
                                                          SCRIPT_VERIFY_WITNESS |
-                                                         SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM;
+                                                         SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM |
+                                                         SCRIPT_VERIFY_WITNESS_PUBKEYTYPE;
 
 /** For convenience, standard but not mandatory verify flags. */
 static const unsigned int STANDARD_NOT_MANDATORY_VERIFY_FLAGS = STANDARD_SCRIPT_VERIFY_FLAGS & ~MANDATORY_SCRIPT_VERIFY_FLAGS;
@@ -69,6 +76,12 @@ bool IsStandardTx(const CTransaction& tx, std::string& reason, const bool witnes
      * @return True if all inputs (scriptSigs) use only standard transaction forms
      */
 bool AreInputsStandard(const CTransaction& tx, const CCoinsViewCache& mapInputs);
+    /**
+     * Check if the transaction is over standard P2WSH resources limit:
+     * 3600bytes witnessScript size, 80bytes per witness stack element, 100 witness stack elements
+     * These limits are adequate for multi-signature up to n-of-100 using OP_CHECKSIG, OP_ADD, and OP_EQUAL,
+     */
+bool IsWitnessStandard(const CTransaction& tx, const CCoinsViewCache& mapInputs);
 
 extern unsigned int nBytesPerSigOp;
 
diff --git a/src/protocol.h b/src/protocol.h
index 1bc1c25b3..d19e0d3a5 100644
--- a/src/protocol.h
+++ b/src/protocol.h
@@ -18,8 +18,6 @@
 #include <stdint.h>
 #include <string>
 
-#define MESSAGE_START_SIZE 4
-
 /** Message header.
  * (4) message start.
  * (12) command.
@@ -29,6 +27,16 @@
 class CMessageHeader
 {
 public:
+    enum {
+        MESSAGE_START_SIZE = 4,
+        COMMAND_SIZE = 12,
+        MESSAGE_SIZE_SIZE = 4,
+        CHECKSUM_SIZE = 4,
+
+        MESSAGE_SIZE_OFFSET = MESSAGE_START_SIZE + COMMAND_SIZE,
+        CHECKSUM_OFFSET = MESSAGE_SIZE_OFFSET + MESSAGE_SIZE_SIZE,
+        HEADER_SIZE = MESSAGE_START_SIZE + COMMAND_SIZE + MESSAGE_SIZE_SIZE + CHECKSUM_SIZE
+    };
     typedef unsigned char MessageStartChars[MESSAGE_START_SIZE];
 
     CMessageHeader(const MessageStartChars& pchMessageStartIn);
@@ -48,17 +56,6 @@ public:
         READWRITE(FLATDATA(pchChecksum));
     }
 
-    // TODO: make private (improves encapsulation)
-public:
-    enum {
-        COMMAND_SIZE = 12,
-        MESSAGE_SIZE_SIZE = 4,
-        CHECKSUM_SIZE = 4,
-
-        MESSAGE_SIZE_OFFSET = MESSAGE_START_SIZE + COMMAND_SIZE,
-        CHECKSUM_OFFSET = MESSAGE_SIZE_OFFSET + MESSAGE_SIZE_SIZE,
-        HEADER_SIZE = MESSAGE_START_SIZE + COMMAND_SIZE + MESSAGE_SIZE_SIZE + CHECKSUM_SIZE
-    };
     char pchMessageStart[MESSAGE_START_SIZE];
     char pchCommand[COMMAND_SIZE];
     uint32_t nMessageSize;
@@ -315,20 +312,24 @@ public:
     unsigned int nTime;
 };
 
-/** getdata message types */
+/** getdata message type flags */
 const uint32_t MSG_WITNESS_FLAG = 1 << 30;
 const uint32_t MSG_TYPE_MASK    = 0xffffffff >> 2;
+
+/** getdata / inv message types.
+ * These numbers are defined by the protocol. When adding a new value, be sure
+ * to mention it in the respective BIP.
+ */
 enum GetDataMsg
 {
     UNDEFINED = 0,
-    MSG_TX,
-    MSG_BLOCK,
-    MSG_TYPE_MAX = MSG_BLOCK,
+    MSG_TX = 1,
+    MSG_BLOCK = 2,
     // The following can only occur in getdata. Invs always use TX or BLOCK.
-    MSG_FILTERED_BLOCK,
-    MSG_CMPCT_BLOCK,
-    MSG_WITNESS_BLOCK = MSG_BLOCK | MSG_WITNESS_FLAG,
-    MSG_WITNESS_TX = MSG_TX | MSG_WITNESS_FLAG,
+    MSG_FILTERED_BLOCK = 3,  //!< Defined in BIP37
+    MSG_CMPCT_BLOCK = 4,     //!< Defined in BIP152
+    MSG_WITNESS_BLOCK = MSG_BLOCK | MSG_WITNESS_FLAG, //!< Defined in BIP144
+    MSG_WITNESS_TX = MSG_TX | MSG_WITNESS_FLAG,       //!< Defined in BIP144
     MSG_FILTERED_WITNESS_BLOCK = MSG_FILTERED_BLOCK | MSG_WITNESS_FLAG,
 };
 
diff --git a/src/qt/clientmodel.cpp b/src/qt/clientmodel.cpp
index 6d19b3d12..87704c641 100644
--- a/src/qt/clientmodel.cpp
+++ b/src/qt/clientmodel.cpp
@@ -256,7 +256,7 @@ static void BlockTipChanged(ClientModel *clientmodel, bool initialSync, const CB
     int64_t& nLastUpdateNotification = fHeader ? nLastHeaderTipUpdateNotification : nLastBlockTipUpdateNotification;
 
     // if we are in-sync, update the UI regardless of last update time
-    if (fHeader || !initialSync || now - nLastUpdateNotification > MODEL_UPDATE_DELAY) {
+    if (!initialSync || now - nLastUpdateNotification > MODEL_UPDATE_DELAY) {
         //pass a async signal to the UI thread
         QMetaObject::invokeMethod(clientmodel, "numBlocksChanged", Qt::QueuedConnection,
                                   Q_ARG(int, pIndex->nHeight),
diff --git a/src/qt/forms/modaloverlay.ui b/src/qt/forms/modaloverlay.ui
index b16ecafbe..73223735f 100644
--- a/src/qt/forms/modaloverlay.ui
+++ b/src/qt/forms/modaloverlay.ui
@@ -276,6 +276,9 @@ QLabel { color: rgb(40,40,40);  }</string>
                <property name="value">
                 <number>24</number>
                </property>
+               <property name="format">
+                <string/>
+               </property>
               </widget>
              </item>
             </layout>
diff --git a/src/qt/modaloverlay.cpp b/src/qt/modaloverlay.cpp
index 2de2dde16..ae0d8f5f6 100644
--- a/src/qt/modaloverlay.cpp
+++ b/src/qt/modaloverlay.cpp
@@ -13,7 +13,8 @@
 ModalOverlay::ModalOverlay(QWidget *parent) :
 QWidget(parent),
 ui(new Ui::ModalOverlay),
-bestBlockHeight(0),
+bestHeaderHeight(0),
+bestHeaderDate(QDateTime()),
 layerIsVisible(false),
 userClosed(false)
 {
@@ -65,14 +66,9 @@ bool ModalOverlay::event(QEvent* ev) {
 
 void ModalOverlay::setKnownBestHeight(int count, const QDateTime& blockDate)
 {
-
-    /* only update the blockheight if the headerschain-tip is not older then 30 days */
-    int64_t now = QDateTime::currentDateTime().toTime_t();
-    int64_t btime = blockDate.toTime_t();
-    if (btime+3600*24*30 > now)
-    {
-        if (count > bestBlockHeight)
-            bestBlockHeight = count;
+    if (count > bestHeaderHeight) {
+        bestHeaderHeight = count;
+        bestHeaderDate = blockDate;
     }
 }
 
@@ -81,7 +77,7 @@ void ModalOverlay::tipUpdate(int count, const QDateTime& blockDate, double nVeri
     QDateTime currentDate = QDateTime::currentDateTime();
 
     // keep a vector of samples of verification progress at height
-    blockProcessTime.push_front(qMakePair(currentDate.currentMSecsSinceEpoch(), nVerificationProgress));
+    blockProcessTime.push_front(qMakePair(currentDate.toMSecsSinceEpoch(), nVerificationProgress));
 
     // show progress speed if we have more then one sample
     if (blockProcessTime.size() >= 2)
@@ -97,8 +93,7 @@ void ModalOverlay::tipUpdate(int count, const QDateTime& blockDate, double nVeri
             QPair<qint64, double> sample = blockProcessTime[i];
 
             // take first sample after 500 seconds or last available one
-            if (sample.first < (currentDate.currentMSecsSinceEpoch() - 500*1000) || i == blockProcessTime.size()-1)
-            {
+            if (sample.first < (currentDate.toMSecsSinceEpoch() - 500 * 1000) || i == blockProcessTime.size() - 1) {
                 progressDelta = progressStart-sample.second;
                 timeDelta = blockProcessTime[0].first - sample.first;
                 progressPerHour = progressDelta/(double)timeDelta*1000*3600;
@@ -112,7 +107,6 @@ void ModalOverlay::tipUpdate(int count, const QDateTime& blockDate, double nVeri
         // show expected remaining time
         ui->expectedTimeLeft->setText(GUIUtil::formateNiceTimeOffset(remainingMSecs/1000.0));
 
-        // keep maximal 5000 samples
         static const int MAX_SAMPLES = 5000;
         if (blockProcessTime.count() > MAX_SAMPLES)
             blockProcessTime.remove(MAX_SAMPLES, blockProcessTime.count()-MAX_SAMPLES);
@@ -125,11 +119,21 @@ void ModalOverlay::tipUpdate(int count, const QDateTime& blockDate, double nVeri
     ui->percentageProgress->setText(QString::number(nVerificationProgress*100, 'f', 2)+"%");
     ui->progressBar->setValue(nVerificationProgress*100);
 
+    if (!bestHeaderDate.isValid())
+        // not syncing
+        return;
+
+    // estimate the number of headers left based on nPowTargetSpacing
+    // and check if the gui is not aware of the the best header (happens rarely)
+    int estimateNumHeadersLeft = bestHeaderDate.secsTo(currentDate) / 600;
+    bool hasBestHeader = bestHeaderHeight >= count;
+
     // show remaining number of blocks
-    if (bestBlockHeight > 0)
-        ui->numberOfBlocksLeft->setText(QString::number(bestBlockHeight-count));
-    else
+    if (estimateNumHeadersLeft < 24 && hasBestHeader) {
+        ui->numberOfBlocksLeft->setText(QString::number(bestHeaderHeight - count));
+    } else {
         ui->expectedTimeLeft->setText(tr("Unknown. Syncing Headers..."));
+    }
 }
 
 void ModalOverlay::showHide(bool hide, bool userRequested)
diff --git a/src/qt/modaloverlay.h b/src/qt/modaloverlay.h
index 670c9e58a..66c0aa78c 100644
--- a/src/qt/modaloverlay.h
+++ b/src/qt/modaloverlay.h
@@ -35,7 +35,8 @@ protected:
 
 private:
     Ui::ModalOverlay *ui;
-    int bestBlockHeight; //best known height (based on the headers)
+    int bestHeaderHeight; //best known height (based on the headers)
+    QDateTime bestHeaderDate;
     QVector<QPair<qint64, double> > blockProcessTime;
     bool layerIsVisible;
     bool userClosed;
diff --git a/src/qt/receivecoinsdialog.cpp b/src/qt/receivecoinsdialog.cpp
index 5c6dc97b2..b50cad497 100644
--- a/src/qt/receivecoinsdialog.cpp
+++ b/src/qt/receivecoinsdialog.cpp
@@ -43,18 +43,21 @@ ReceiveCoinsDialog::ReceiveCoinsDialog(const PlatformStyle *_platformStyle, QWid
     }
 
     // context menu actions
+    QAction *copyURIAction = new QAction(tr("Copy URI"), this);
     QAction *copyLabelAction = new QAction(tr("Copy label"), this);
     QAction *copyMessageAction = new QAction(tr("Copy message"), this);
     QAction *copyAmountAction = new QAction(tr("Copy amount"), this);
 
     // context menu
     contextMenu = new QMenu();
+    contextMenu->addAction(copyURIAction);
     contextMenu->addAction(copyLabelAction);
     contextMenu->addAction(copyMessageAction);
     contextMenu->addAction(copyAmountAction);
 
     // context menu signals
     connect(ui->recentRequestsView, SIGNAL(customContextMenuRequested(QPoint)), this, SLOT(showMenu(QPoint)));
+    connect(copyURIAction, SIGNAL(triggered()), this, SLOT(copyURI()));
     connect(copyLabelAction, SIGNAL(triggered()), this, SLOT(copyLabel()));
     connect(copyMessageAction, SIGNAL(triggered()), this, SLOT(copyMessage()));
     connect(copyAmountAction, SIGNAL(triggered()), this, SLOT(copyAmount()));
@@ -228,30 +231,50 @@ void ReceiveCoinsDialog::keyPressEvent(QKeyEvent *event)
     this->QDialog::keyPressEvent(event);
 }
 
-// copy column of selected row to clipboard
-void ReceiveCoinsDialog::copyColumnToClipboard(int column)
+QModelIndex ReceiveCoinsDialog::selectedRow()
 {
     if(!model || !model->getRecentRequestsTableModel() || !ui->recentRequestsView->selectionModel())
-        return;
+        return QModelIndex();
     QModelIndexList selection = ui->recentRequestsView->selectionModel()->selectedRows();
     if(selection.empty())
-        return;
+        return QModelIndex();
     // correct for selection mode ContiguousSelection
     QModelIndex firstIndex = selection.at(0);
+    return firstIndex;
+}
+
+// copy column of selected row to clipboard
+void ReceiveCoinsDialog::copyColumnToClipboard(int column)
+{
+    QModelIndex firstIndex = selectedRow();
+    if (!firstIndex.isValid()) {
+        return;
+    }
     GUIUtil::setClipboard(model->getRecentRequestsTableModel()->data(firstIndex.child(firstIndex.row(), column), Qt::EditRole).toString());
 }
 
 // context menu
 void ReceiveCoinsDialog::showMenu(const QPoint &point)
 {
-    if(!model || !model->getRecentRequestsTableModel() || !ui->recentRequestsView->selectionModel())
-        return;
-    QModelIndexList selection = ui->recentRequestsView->selectionModel()->selectedRows();
-    if(selection.empty())
+    if (!selectedRow().isValid()) {
         return;
+    }
     contextMenu->exec(QCursor::pos());
 }
 
+// context menu action: copy URI
+void ReceiveCoinsDialog::copyURI()
+{
+    QModelIndex sel = selectedRow();
+    if (!sel.isValid()) {
+        return;
+    }
+
+    const RecentRequestsTableModel * const submodel = model->getRecentRequestsTableModel();
+    const QString uri = GUIUtil::formatBitcoinURI(submodel->entry(sel.row()).recipient);
+    GUIUtil::setClipboard(uri);
+}
+
 // context menu action: copy label
 void ReceiveCoinsDialog::copyLabel()
 {
diff --git a/src/qt/receivecoinsdialog.h b/src/qt/receivecoinsdialog.h
index 226fd65cf..d137f1616 100644
--- a/src/qt/receivecoinsdialog.h
+++ b/src/qt/receivecoinsdialog.h
@@ -60,6 +60,7 @@ private:
     QMenu *contextMenu;
     const PlatformStyle *platformStyle;
 
+    QModelIndex selectedRow();
     void copyColumnToClipboard(int column);
     virtual void resizeEvent(QResizeEvent *event);
 
@@ -71,6 +72,7 @@ private Q_SLOTS:
     void recentRequestsView_selectionChanged(const QItemSelection &selected, const QItemSelection &deselected);
     void updateDisplayUnit();
     void showMenu(const QPoint &point);
+    void copyURI();
     void copyLabel();
     void copyMessage();
     void copyAmount();
diff --git a/src/qt/rpcconsole.cpp b/src/qt/rpcconsole.cpp
index ace9f1cea..b6ed75535 100644
--- a/src/qt/rpcconsole.cpp
+++ b/src/qt/rpcconsole.cpp
@@ -981,20 +981,21 @@ void RPCConsole::banSelectedNode(int bantime)
     if (!clientModel || !g_connman)
         return;
 
-    // Get currently selected peer address
-    QString strNode = GUIUtil::getEntryData(ui->peerWidget, 0, PeerTableModel::Address).toString();
-    // Find possible nodes, ban it and clear the selected node
-    std::string nStr = strNode.toStdString();
-    std::string addr;
-    int port = 0;
-    SplitHostPort(nStr, port, addr);
+    if(cachedNodeid == -1)
+        return;
 
-    CNetAddr resolved;
-    if(!LookupHost(addr.c_str(), resolved, false))
+    // Get currently selected peer address
+    int detailNodeRow = clientModel->getPeerTableModel()->getRowByNodeId(cachedNodeid);
+    if(detailNodeRow < 0)
         return;
-    g_connman->Ban(resolved, BanReasonManuallyAdded, bantime);
-    clearSelectedNode();
-    clientModel->getBanTableModel()->refresh();
+
+    // Find possible nodes, ban it and clear the selected node
+    const CNodeCombinedStats *stats = clientModel->getPeerTableModel()->getNodeStats(detailNodeRow);
+    if(stats) {
+        g_connman->Ban(stats->nodeStats.addr, BanReasonManuallyAdded, bantime);
+        clearSelectedNode();
+        clientModel->getBanTableModel()->refresh();
+    }
 }
 
 void RPCConsole::unbanSelectedNode()
diff --git a/src/rpc/blockchain.cpp b/src/rpc/blockchain.cpp
index 41d862934..1e04fcc01 100644
--- a/src/rpc/blockchain.cpp
+++ b/src/rpc/blockchain.cpp
@@ -1038,7 +1038,7 @@ UniValue getblockchaininfo(const UniValue& params, bool fHelp)
             "  \"verificationprogress\": xxxx, (numeric) estimate of verification progress [0..1]\n"
             "  \"chainwork\": \"xxxx\"     (string) total amount of work in active chain, in hexadecimal\n"
             "  \"pruned\": xx,             (boolean) if the blocks are subject to pruning\n"
-            "  \"pruneheight\": xxxxxx,    (numeric) heighest block available\n"
+            "  \"pruneheight\": xxxxxx,    (numeric) lowest-height complete block stored\n"
             "  \"softforks\": [            (array) status of softforks in progress\n"
             "     {\n"
             "        \"id\": \"xxxx\",        (string) name of softfork\n"
diff --git a/src/rpc/mining.cpp b/src/rpc/mining.cpp
index 6b13aa5ba..fa64ce8fa 100644
--- a/src/rpc/mining.cpp
+++ b/src/rpc/mining.cpp
@@ -230,7 +230,6 @@ UniValue getmininginfo(const UniValue& params, bool fHelp)
             "  \"errors\": \"...\"            (string) Current errors\n"
             "  \"networkhashps\": nnn,      (numeric) The network hashes per second\n"
             "  \"pooledtx\": n              (numeric) The size of the mem pool\n"
-            "  \"testnet\": true|false      (boolean) If using testnet or not\n"
             "  \"chain\": \"xxxx\",           (string) current network name as defined in BIP70 (main, test, regtest)\n"
             "}\n"
             "\nExamples:\n"
@@ -250,7 +249,6 @@ UniValue getmininginfo(const UniValue& params, bool fHelp)
     obj.push_back(Pair("errors",           GetWarnings("statusbar")));
     obj.push_back(Pair("networkhashps",    getnetworkhashps(params, false)));
     obj.push_back(Pair("pooledtx",         (uint64_t)mempool.size()));
-    obj.push_back(Pair("testnet",          Params().TestnetToBeDeprecatedFieldRPC()));
     obj.push_back(Pair("chain",            Params().NetworkIDString()));
     return obj;
 }
diff --git a/src/rpc/misc.cpp b/src/rpc/misc.cpp
index f0b7e0a07..6bbb3925d 100644
--- a/src/rpc/misc.cpp
+++ b/src/rpc/misc.cpp
@@ -93,7 +93,7 @@ UniValue getinfo(const UniValue& params, bool fHelp)
         obj.push_back(Pair("connections",   (int)g_connman->GetNodeCount(CConnman::CONNECTIONS_ALL)));
     obj.push_back(Pair("proxy",         (proxy.IsValid() ? proxy.proxy.ToStringIPPort() : string())));
     obj.push_back(Pair("difficulty",    (double)GetDifficulty()));
-    obj.push_back(Pair("testnet",       Params().TestnetToBeDeprecatedFieldRPC()));
+    obj.push_back(Pair("testnet",       Params().NetworkIDString() == CBaseChainParams::TESTNET));
 #ifdef ENABLE_WALLET
     if (pwalletMain) {
         obj.push_back(Pair("keypoololdest", pwalletMain->GetOldestKeyPoolTime()));
diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp
index d2ad0a52b..e48fe2565 100644
--- a/src/rpc/rawtransaction.cpp
+++ b/src/rpc/rawtransaction.cpp
@@ -535,7 +535,7 @@ UniValue decodescript(const UniValue& params, bool fHelp)
             "     \"address\"     (string) bitcoin address\n"
             "     ,...\n"
             "  ],\n"
-            "  \"p2sh\",\"address\" (string) script address\n"
+            "  \"p2sh\",\"address\" (string) address of P2SH script wrapping this redeem script (not returned if the script is already a P2SH).\n"
             "}\n"
             "\nExamples:\n"
             + HelpExampleCli("decodescript", "\"hexstring\"")
@@ -554,7 +554,15 @@ UniValue decodescript(const UniValue& params, bool fHelp)
     }
     ScriptPubKeyToJSON(script, r, false);
 
-    r.push_back(Pair("p2sh", CBitcoinAddress(CScriptID(script)).ToString()));
+    UniValue type;
+    type = find_value(r, "type");
+
+    if (type.isStr() && type.get_str() != "scripthash") {
+        // P2SH cannot be wrapped in a P2SH. If this script is already a P2SH,
+        // don't return the address for a P2SH of the P2SH.
+        r.push_back(Pair("p2sh", CBitcoinAddress(CScriptID(script)).ToString()));
+    }
+
     return r;
 }
 
diff --git a/src/script/interpreter.cpp b/src/script/interpreter.cpp
index 41756ea71..836cf9ee3 100644
--- a/src/script/interpreter.cpp
+++ b/src/script/interpreter.cpp
@@ -79,8 +79,20 @@ bool static IsCompressedOrUncompressedPubKey(const valtype &vchPubKey) {
             return false;
         }
     } else {
-          //  Non-canonical public key: neither compressed nor uncompressed
-          return false;
+        //  Non-canonical public key: neither compressed nor uncompressed
+        return false;
+    }
+    return true;
+}
+
+bool static IsCompressedPubKey(const valtype &vchPubKey) {
+    if (vchPubKey.size() != 33) {
+        //  Non-canonical public key: invalid length for compressed key
+        return false;
+    }
+    if (vchPubKey[0] != 0x02 && vchPubKey[0] != 0x03) {
+        //  Non-canonical public key: invalid prefix for compressed key
+        return false;
     }
     return true;
 }
@@ -199,10 +211,14 @@ bool CheckSignatureEncoding(const vector<unsigned char> &vchSig, unsigned int fl
     return true;
 }
 
-bool static CheckPubKeyEncoding(const valtype &vchSig, unsigned int flags, ScriptError* serror) {
-    if ((flags & SCRIPT_VERIFY_STRICTENC) != 0 && !IsCompressedOrUncompressedPubKey(vchSig)) {
+bool static CheckPubKeyEncoding(const valtype &vchPubKey, unsigned int flags, const SigVersion &sigversion, ScriptError* serror) {
+    if ((flags & SCRIPT_VERIFY_STRICTENC) != 0 && !IsCompressedOrUncompressedPubKey(vchPubKey)) {
         return set_error(serror, SCRIPT_ERR_PUBKEYTYPE);
     }
+    // Only compressed keys are accepted in segwit
+    if ((flags & SCRIPT_VERIFY_WITNESS_PUBKEYTYPE) != 0 && sigversion == SIGVERSION_WITNESS_V0 && !IsCompressedPubKey(vchPubKey)) {
+        return set_error(serror, SCRIPT_ERR_WITNESS_PUBKEYTYPE);
+    }
     return true;
 }
 
@@ -879,7 +895,7 @@ bool EvalScript(vector<vector<unsigned char> >& stack, const CScript& script, un
                         scriptCode.FindAndDelete(CScript(vchSig));
                     }
 
-                    if (!CheckSignatureEncoding(vchSig, flags, serror) || !CheckPubKeyEncoding(vchPubKey, flags, serror)) {
+                    if (!CheckSignatureEncoding(vchSig, flags, serror) || !CheckPubKeyEncoding(vchPubKey, flags, sigversion, serror)) {
                         //serror is set
                         return false;
                     }
@@ -953,7 +969,7 @@ bool EvalScript(vector<vector<unsigned char> >& stack, const CScript& script, un
                         // Note how this makes the exact order of pubkey/signature evaluation
                         // distinguishable by CHECKMULTISIG NOT if the STRICTENC flag is set.
                         // See the script_(in)valid tests for details.
-                        if (!CheckSignatureEncoding(vchSig, flags, serror) || !CheckPubKeyEncoding(vchPubKey, flags, serror)) {
+                        if (!CheckSignatureEncoding(vchSig, flags, serror) || !CheckPubKeyEncoding(vchPubKey, flags, sigversion, serror)) {
                             // serror is set
                             return false;
                         }
diff --git a/src/script/interpreter.h b/src/script/interpreter.h
index 0adc9482f..79894c530 100644
--- a/src/script/interpreter.h
+++ b/src/script/interpreter.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2015 The Bitcoin Core developers
+// Copyright (c) 2009-2016 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -102,6 +102,10 @@ enum
     // Signature(s) must be empty vector if an CHECK(MULTI)SIG operation failed
     //
     SCRIPT_VERIFY_NULLFAIL = (1U << 14),
+
+    // Public keys in segregated witness scripts must be compressed
+    //
+    SCRIPT_VERIFY_WITNESS_PUBKEYTYPE = (1U << 15),
 };
 
 bool CheckSignatureEncoding(const std::vector<unsigned char> &vchSig, unsigned int flags, ScriptError* serror);
diff --git a/src/script/ismine.cpp b/src/script/ismine.cpp
index 0bf180341..7467d23b2 100644
--- a/src/script/ismine.cpp
+++ b/src/script/ismine.cpp
@@ -29,13 +29,25 @@ unsigned int HaveKeys(const vector<valtype>& pubkeys, const CKeyStore& keystore)
     return nResult;
 }
 
-isminetype IsMine(const CKeyStore &keystore, const CTxDestination& dest)
+isminetype IsMine(const CKeyStore& keystore, const CScript& scriptPubKey, SigVersion sigversion)
+{
+    bool isInvalid = false;
+    return IsMine(keystore, scriptPubKey, isInvalid, sigversion);
+}
+
+isminetype IsMine(const CKeyStore& keystore, const CTxDestination& dest, SigVersion sigversion)
+{
+    bool isInvalid = false;
+    return IsMine(keystore, dest, isInvalid, sigversion);
+}
+
+isminetype IsMine(const CKeyStore &keystore, const CTxDestination& dest, bool& isInvalid, SigVersion sigversion)
 {
     CScript script = GetScriptForDestination(dest);
-    return IsMine(keystore, script);
+    return IsMine(keystore, script, isInvalid, sigversion);
 }
 
-isminetype IsMine(const CKeyStore &keystore, const CScript& scriptPubKey)
+isminetype IsMine(const CKeyStore &keystore, const CScript& scriptPubKey, bool& isInvalid, SigVersion sigversion)
 {
     vector<valtype> vSolutions;
     txnouttype whichType;
@@ -53,12 +65,35 @@ isminetype IsMine(const CKeyStore &keystore, const CScript& scriptPubKey)
         break;
     case TX_PUBKEY:
         keyID = CPubKey(vSolutions[0]).GetID();
+        if (sigversion != SIGVERSION_BASE && vSolutions[0].size() != 33) {
+            isInvalid = true;
+            return ISMINE_NO;
+        }
         if (keystore.HaveKey(keyID))
             return ISMINE_SPENDABLE;
         break;
-    case TX_PUBKEYHASH:
     case TX_WITNESS_V0_KEYHASH:
+    {
+        if (!keystore.HaveCScript(CScriptID(CScript() << OP_0 << vSolutions[0]))) {
+            // We do not support bare witness outputs unless the P2SH version of it would be
+            // acceptable as well. This protects against matching before segwit activates.
+            // This also applies to the P2WSH case.
+            break;
+        }
+        isminetype ret = ::IsMine(keystore, GetScriptForDestination(CKeyID(uint160(vSolutions[0]))), isInvalid, SIGVERSION_WITNESS_V0);
+        if (ret == ISMINE_SPENDABLE || ret == ISMINE_WATCH_SOLVABLE || (ret == ISMINE_NO && isInvalid))
+            return ret;
+        break;
+    }
+    case TX_PUBKEYHASH:
         keyID = CKeyID(uint160(vSolutions[0]));
+        if (sigversion != SIGVERSION_BASE) {
+            CPubKey pubkey;
+            if (keystore.GetPubKey(keyID, pubkey) && !pubkey.IsCompressed()) {
+                isInvalid = true;
+                return ISMINE_NO;
+            }
+        }
         if (keystore.HaveKey(keyID))
             return ISMINE_SPENDABLE;
         break;
@@ -67,21 +102,24 @@ isminetype IsMine(const CKeyStore &keystore, const CScript& scriptPubKey)
         CScriptID scriptID = CScriptID(uint160(vSolutions[0]));
         CScript subscript;
         if (keystore.GetCScript(scriptID, subscript)) {
-            isminetype ret = IsMine(keystore, subscript);
-            if (ret == ISMINE_SPENDABLE)
+            isminetype ret = IsMine(keystore, subscript, isInvalid);
+            if (ret == ISMINE_SPENDABLE || ret == ISMINE_WATCH_SOLVABLE || (ret == ISMINE_NO && isInvalid))
                 return ret;
         }
         break;
     }
     case TX_WITNESS_V0_SCRIPTHASH:
     {
+        if (!keystore.HaveCScript(CScriptID(CScript() << OP_0 << vSolutions[0]))) {
+            break;
+        }
         uint160 hash;
         CRIPEMD160().Write(&vSolutions[0][0], vSolutions[0].size()).Finalize(hash.begin());
         CScriptID scriptID = CScriptID(hash);
         CScript subscript;
         if (keystore.GetCScript(scriptID, subscript)) {
-            isminetype ret = IsMine(keystore, subscript);
-            if (ret == ISMINE_SPENDABLE)
+            isminetype ret = IsMine(keystore, subscript, isInvalid, SIGVERSION_WITNESS_V0);
+            if (ret == ISMINE_SPENDABLE || ret == ISMINE_WATCH_SOLVABLE || (ret == ISMINE_NO && isInvalid))
                 return ret;
         }
         break;
@@ -95,6 +133,14 @@ isminetype IsMine(const CKeyStore &keystore, const CScript& scriptPubKey)
         // them) enable spend-out-from-under-you attacks, especially
         // in shared-wallet situations.
         vector<valtype> keys(vSolutions.begin()+1, vSolutions.begin()+vSolutions.size()-1);
+        if (sigversion != SIGVERSION_BASE) {
+            for (size_t i = 0; i < keys.size(); i++) {
+                if (keys[i].size() != 33) {
+                    isInvalid = true;
+                    return ISMINE_NO;
+                }
+            }
+        }
         if (HaveKeys(keys, keystore) == keys.size())
             return ISMINE_SPENDABLE;
         break;
diff --git a/src/script/ismine.h b/src/script/ismine.h
index 4b7db8802..ec7a620e3 100644
--- a/src/script/ismine.h
+++ b/src/script/ismine.h
@@ -28,7 +28,14 @@ enum isminetype
 /** used for bitflags of isminetype */
 typedef uint8_t isminefilter;
 
-isminetype IsMine(const CKeyStore& keystore, const CScript& scriptPubKey);
-isminetype IsMine(const CKeyStore& keystore, const CTxDestination& dest);
+/* isInvalid becomes true when the script is found invalid by consensus or policy. This will terminate the recursion
+ * and return a ISMINE_NO immediately, as an invalid script should never be considered as "mine". This is needed as
+ * different SIGVERSION may have different network rules. Currently the only use of isInvalid is indicate uncompressed
+ * keys in SIGVERSION_WITNESS_V0 script, but could also be used in similar cases in the future
+ */
+isminetype IsMine(const CKeyStore& keystore, const CScript& scriptPubKey, bool& isInvalid, SigVersion = SIGVERSION_BASE);
+isminetype IsMine(const CKeyStore& keystore, const CScript& scriptPubKey, SigVersion = SIGVERSION_BASE);
+isminetype IsMine(const CKeyStore& keystore, const CTxDestination& dest, bool& isInvalid, SigVersion = SIGVERSION_BASE);
+isminetype IsMine(const CKeyStore& keystore, const CTxDestination& dest, SigVersion = SIGVERSION_BASE);
 
 #endif // BITCOIN_SCRIPT_ISMINE_H
diff --git a/src/script/script_error.cpp b/src/script/script_error.cpp
index e27b715c2..2c5359fe8 100644
--- a/src/script/script_error.cpp
+++ b/src/script/script_error.cpp
@@ -85,6 +85,8 @@ const char* ScriptErrorString(const ScriptError serror)
             return "Witness requires only-redeemscript scriptSig";
         case SCRIPT_ERR_WITNESS_UNEXPECTED:
             return "Witness provided for non-witness script";
+        case SCRIPT_ERR_WITNESS_PUBKEYTYPE:
+            return "Using non-compressed keys in segwit";
         case SCRIPT_ERR_UNKNOWN_ERROR:
         case SCRIPT_ERR_ERROR_COUNT:
         default: break;
diff --git a/src/script/script_error.h b/src/script/script_error.h
index bccfdb99e..430836991 100644
--- a/src/script/script_error.h
+++ b/src/script/script_error.h
@@ -62,6 +62,7 @@ typedef enum ScriptError_t
     SCRIPT_ERR_WITNESS_MALLEATED,
     SCRIPT_ERR_WITNESS_MALLEATED_P2SH,
     SCRIPT_ERR_WITNESS_UNEXPECTED,
+    SCRIPT_ERR_WITNESS_PUBKEYTYPE,
 
     SCRIPT_ERR_ERROR_COUNT
 } ScriptError;
diff --git a/src/script/sign.cpp b/src/script/sign.cpp
index 87f38d9c7..f552ad5bb 100644
--- a/src/script/sign.cpp
+++ b/src/script/sign.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2015 The Bitcoin Core developers
+// Copyright (c) 2009-2016 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -26,6 +26,10 @@ bool TransactionSignatureCreator::CreateSig(std::vector<unsigned char>& vchSig,
     if (!keystore->GetKey(address, key))
         return false;
 
+    // Signing with uncompressed keys is disabled in witness scripts
+    if (sigversion == SIGVERSION_WITNESS_V0 && !key.IsCompressed())
+        return false;
+
     uint256 hash = SignatureHash(scriptCode, *txTo, nIn, nHashType, amount, sigversion);
     if (!key.Sign(hash, vchSig))
         return false;
diff --git a/src/test/bctest.py b/src/test/bctest.py
index 39a27fcd0..d801415c7 100644
--- a/src/test/bctest.py
+++ b/src/test/bctest.py
@@ -45,13 +45,17 @@ def bctest(testDir, testObj, exeext):
 		print("Return code mismatch for " + outputFn)
 		sys.exit(1)
 
-def bctester(testDir, input_basename, buildenv):
+def bctester(testDir, input_basename, buildenv, verbose = False):
 	input_filename = testDir + "/" + input_basename
 	raw_data = open(input_filename).read()
 	input_data = json.loads(raw_data)
 
 	for testObj in input_data:
+		if verbose and "description" in testObj:
+			print ("Testing: " + testObj["description"])
 		bctest(testDir, testObj, buildenv.exeext)
+		if verbose and "description" in testObj:
+			print ("PASS")
 
 	sys.exit(0)
 
diff --git a/src/test/bitcoin-util-test.py b/src/test/bitcoin-util-test.py
index 225b3324e..3099506d6 100755
--- a/src/test/bitcoin-util-test.py
+++ b/src/test/bitcoin-util-test.py
@@ -19,11 +19,14 @@ test/bitcoin-util-test.py --src=[srcdir]
 
 
 if __name__ == '__main__':
+    verbose = False
     try:
         srcdir = os.environ["srcdir"]
     except:
         parser = argparse.ArgumentParser(description=help_text)
         parser.add_argument('-s', '--srcdir')
+        parser.add_argument('-v', '--verbose', action='store_true')
         args = parser.parse_args()
         srcdir = args.srcdir
-    bctest.bctester(srcdir + "/test/data", "bitcoin-util-test.json", buildenv)
+        verbose = args.verbose
+    bctest.bctester(srcdir + "/test/data", "bitcoin-util-test.json", buildenv, verbose = verbose)
diff --git a/src/test/blockencodings_tests.cpp b/src/test/blockencodings_tests.cpp
index d2392cfb2..7530b013b 100644
--- a/src/test/blockencodings_tests.cpp
+++ b/src/test/blockencodings_tests.cpp
@@ -64,7 +64,7 @@ BOOST_AUTO_TEST_CASE(SimpleRoundTripTest)
 
     // Do a simple ShortTxIDs RT
     {
-        CBlockHeaderAndShortTxIDs shortIDs(block);
+        CBlockHeaderAndShortTxIDs shortIDs(block, true);
 
         CDataStream stream(SER_NETWORK, PROTOCOL_VERSION);
         stream << shortIDs;
@@ -116,7 +116,7 @@ public:
         stream >> *this;
     }
     TestHeaderAndShortIDs(const CBlock& block) :
-        TestHeaderAndShortIDs(CBlockHeaderAndShortTxIDs(block)) {}
+        TestHeaderAndShortIDs(CBlockHeaderAndShortTxIDs(block, true)) {}
 
     uint64_t GetShortID(const uint256& txhash) const {
         CDataStream stream(SER_NETWORK, PROTOCOL_VERSION);
@@ -267,7 +267,7 @@ BOOST_AUTO_TEST_CASE(EmptyBlockRoundTripTest)
 
     // Test simple header round-trip with only coinbase
     {
-        CBlockHeaderAndShortTxIDs shortIDs(block);
+        CBlockHeaderAndShortTxIDs shortIDs(block, false);
 
         CDataStream stream(SER_NETWORK, PROTOCOL_VERSION);
         stream << shortIDs;
diff --git a/src/test/data/bitcoin-util-test.json b/src/test/data/bitcoin-util-test.json
index 9df61a7e7..de9504459 100644
--- a/src/test/data/bitcoin-util-test.json
+++ b/src/test/data/bitcoin-util-test.json
@@ -1,61 +1,73 @@
 [
   { "exec": "./bitcoin-tx",
     "args": ["-create"],
-    "output_cmp": "blanktx.hex"
+    "output_cmp": "blanktx.hex",
+    "description": "Creates a blank transaction"
   },
   { "exec": "./bitcoin-tx",
     "args": ["-json","-create"],
-    "output_cmp": "blanktx.json"
+    "output_cmp": "blanktx.json",
+    "description": "Creates a blank transaction (output in json)"
   },
   { "exec": "./bitcoin-tx",
     "args": ["-"],
     "input": "blanktx.hex",
-    "output_cmp": "blanktx.hex"
+    "output_cmp": "blanktx.hex",
+    "description": "Creates a blank transaction when nothing is piped into bitcoin-tx"
   },
   { "exec": "./bitcoin-tx",
     "args": ["-json","-"],
     "input": "blanktx.hex",
-    "output_cmp": "blanktx.json"
+    "output_cmp": "blanktx.json",
+    "description": "Creates a blank transaction when nothing is piped into bitcoin-tx (output in json)"
   },
   { "exec": "./bitcoin-tx",
     "args": ["-", "delin=1"],
     "input": "tx394b54bb.hex",
-    "output_cmp": "tt-delin1-out.hex"
+    "output_cmp": "tt-delin1-out.hex",
+    "description": "Deletes a single input from a transaction"
   },
   { "exec": "./bitcoin-tx",
     "args": ["-json", "-", "delin=1"],
     "input": "tx394b54bb.hex",
-    "output_cmp": "tt-delin1-out.json"
+    "output_cmp": "tt-delin1-out.json",
+    "description": "Deletes a single input from a transaction (output in json)"
   },
   { "exec": "./bitcoin-tx",
     "args": ["-", "delin=31"],
     "input": "tx394b54bb.hex",
-    "return_code": 1
+    "return_code": 1,
+    "description": "Attempts to delete an input with a bad index from a transaction. Expected to fail."
   },
   { "exec": "./bitcoin-tx",
     "args": ["-", "delout=1"],
     "input": "tx394b54bb.hex",
-    "output_cmp": "tt-delout1-out.hex"
+    "output_cmp": "tt-delout1-out.hex",
+    "description": "Deletes a single output from a transaction"
   },
   { "exec": "./bitcoin-tx",
     "args": ["-json", "-", "delout=1"],
     "input": "tx394b54bb.hex",
-    "output_cmp": "tt-delout1-out.json"
+    "output_cmp": "tt-delout1-out.json",
+    "description": "Deletes a single output from a transaction (output in json)"
   },
   { "exec": "./bitcoin-tx",
     "args": ["-", "delout=2"],
     "input": "tx394b54bb.hex",
-    "return_code": 1
+    "return_code": 1,
+    "description": "Attempts to delete an output with a bad index from a transaction. Expected to fail."
   },
   { "exec": "./bitcoin-tx",
     "args": ["-", "locktime=317000"],
     "input": "tx394b54bb.hex",
-    "output_cmp": "tt-locktime317000-out.hex"
+    "output_cmp": "tt-locktime317000-out.hex",
+    "description": "Adds an nlocktime to a transaction"
   },
   { "exec": "./bitcoin-tx",
     "args": ["-json", "-", "locktime=317000"],
     "input": "tx394b54bb.hex",
-    "output_cmp": "tt-locktime317000-out.json"
+    "output_cmp": "tt-locktime317000-out.json",
+    "description": "Adds an nlocktime to a transaction (output in json)"
   },
   { "exec": "./bitcoin-tx",
     "args":
@@ -65,7 +77,8 @@
      "in=22a6f904655d53ae2ff70e701a0bbd90aa3975c0f40bfc6cc996a9049e31cdfc:1",
      "outaddr=0.18:13tuJJDR2RgArmgfv6JScSdreahzgc4T6o",
      "outaddr=4:1P8yWvZW8jVihP1bzHeqfE4aoXNX8AVa46"],
-    "output_cmp": "txcreate1.hex"
+    "output_cmp": "txcreate1.hex",
+    "description": "Creates a new transaction with three inputs and two outputs"
   },
   { "exec": "./bitcoin-tx",
     "args":
@@ -76,15 +89,18 @@
      "in=22a6f904655d53ae2ff70e701a0bbd90aa3975c0f40bfc6cc996a9049e31cdfc:1",
      "outaddr=0.18:13tuJJDR2RgArmgfv6JScSdreahzgc4T6o",
      "outaddr=4:1P8yWvZW8jVihP1bzHeqfE4aoXNX8AVa46"],
-    "output_cmp": "txcreate1.json"
+    "output_cmp": "txcreate1.json",
+    "description": "Creates a new transaction with three inputs and two outputs (output in json)"
   },
   { "exec": "./bitcoin-tx",
     "args": ["-create", "outscript=0:"],
-    "output_cmp": "txcreate2.hex"
+    "output_cmp": "txcreate2.hex",
+    "description": "Creates a new transaction with a single empty output script"
   },
   { "exec": "./bitcoin-tx",
     "args": ["-json", "-create", "outscript=0:"],
-    "output_cmp": "txcreate2.json"
+    "output_cmp": "txcreate2.json",
+    "description": "Creates a new transaction with a single empty output script (output in json)"
   },
   { "exec": "./bitcoin-tx",
     "args":
@@ -94,7 +110,8 @@
      "set=prevtxs:[{\"txid\":\"4d49a71ec9da436f71ec4ee231d04f292a29cd316f598bb7068feccabdc59485\",\"vout\":0,\"scriptPubKey\":\"76a91491b24bf9f5288532960ac687abb035127b1d28a588ac\"}]",
      "sign=ALL",
      "outaddr=0.001:193P6LtvS4nCnkDvM9uXn1gsSRqh4aDAz7"],
-    "output_cmp": "txcreatesign.hex"
+    "output_cmp": "txcreatesign.hex",
+    "description": "Creates a new transaction with a single input and a single output, and then signs the transaction"
   },
   { "exec": "./bitcoin-tx",
     "args":
@@ -105,21 +122,24 @@
      "set=prevtxs:[{\"txid\":\"4d49a71ec9da436f71ec4ee231d04f292a29cd316f598bb7068feccabdc59485\",\"vout\":0,\"scriptPubKey\":\"76a91491b24bf9f5288532960ac687abb035127b1d28a588ac\"}]",
      "sign=ALL",
      "outaddr=0.001:193P6LtvS4nCnkDvM9uXn1gsSRqh4aDAz7"],
-    "output_cmp": "txcreatesign.json"
+    "output_cmp": "txcreatesign.json",
+    "description": "Creates a new transaction with a single input and a single output, and then signs the transaction (output in json)"
   },
   { "exec": "./bitcoin-tx",
     "args":
     ["-create",
      "in=5897de6bd6027a475eadd57019d4e6872c396d0716c4875a5f1a6fcfdf385c1f:0",
      "outdata=4:badhexdata"],
-    "return_code": 1
+    "return_code": 1,
+    "description": "Attempts to create a new transaction with one input and an output with malformed hex data. Expected to fail"
   },
   { "exec": "./bitcoin-tx",
     "args":
     ["-create",
      "in=5897de6bd6027a475eadd57019d4e6872c396d0716c4875a5f1a6fcfdf385c1f:0",
      "outdata=badhexdata"],
-    "return_code": 1
+    "return_code": 1,
+    "description": "Attempts to create a new transaction with one input and an output with no value and malformed hex data. Expected to fail"
   },
   { "exec": "./bitcoin-tx",
     "args":
@@ -127,7 +147,8 @@
      "in=5897de6bd6027a475eadd57019d4e6872c396d0716c4875a5f1a6fcfdf385c1f:0",
      "outaddr=0.18:13tuJJDR2RgArmgfv6JScSdreahzgc4T6o",
      "outdata=4:54686973204f505f52455455524e207472616e73616374696f6e206f7574707574207761732063726561746564206279206d6f646966696564206372656174657261777472616e73616374696f6e2e"],
-    "output_cmp": "txcreatedata1.hex"
+    "output_cmp": "txcreatedata1.hex",
+    "description": "Creates a new transaction with one input, one address output and one data output"
   },
   { "exec": "./bitcoin-tx",
     "args":
@@ -136,7 +157,8 @@
      "in=5897de6bd6027a475eadd57019d4e6872c396d0716c4875a5f1a6fcfdf385c1f:0",
      "outaddr=0.18:13tuJJDR2RgArmgfv6JScSdreahzgc4T6o",
      "outdata=4:54686973204f505f52455455524e207472616e73616374696f6e206f7574707574207761732063726561746564206279206d6f646966696564206372656174657261777472616e73616374696f6e2e"],
-    "output_cmp": "txcreatedata1.json"
+    "output_cmp": "txcreatedata1.json",
+    "description": "Creates a new transaction with one input, one address output and one data output (output in json)"
   },
   { "exec": "./bitcoin-tx",
     "args":
@@ -144,7 +166,8 @@
      "in=5897de6bd6027a475eadd57019d4e6872c396d0716c4875a5f1a6fcfdf385c1f:0",
      "outaddr=0.18:13tuJJDR2RgArmgfv6JScSdreahzgc4T6o",
      "outdata=54686973204f505f52455455524e207472616e73616374696f6e206f7574707574207761732063726561746564206279206d6f646966696564206372656174657261777472616e73616374696f6e2e"],
-    "output_cmp": "txcreatedata2.hex"
+    "output_cmp": "txcreatedata2.hex",
+    "description": "Creates a new transaction with one input, one address output and one data (zero value) output"
   },
   { "exec": "./bitcoin-tx",
     "args":
@@ -153,14 +176,16 @@
      "in=5897de6bd6027a475eadd57019d4e6872c396d0716c4875a5f1a6fcfdf385c1f:0",
      "outaddr=0.18:13tuJJDR2RgArmgfv6JScSdreahzgc4T6o",
      "outdata=54686973204f505f52455455524e207472616e73616374696f6e206f7574707574207761732063726561746564206279206d6f646966696564206372656174657261777472616e73616374696f6e2e"],
-    "output_cmp": "txcreatedata2.json"
+    "output_cmp": "txcreatedata2.json",
+    "description": "Creates a new transaction with one input, one address output and one data (zero value) output (output in json)"
   },
   { "exec": "./bitcoin-tx",
     "args":
     ["-create",
      "in=5897de6bd6027a475eadd57019d4e6872c396d0716c4875a5f1a6fcfdf385c1f:0:4294967293",
      "outaddr=0.18:13tuJJDR2RgArmgfv6JScSdreahzgc4T6o"],
-    "output_cmp": "txcreatedata_seq0.hex"
+    "output_cmp": "txcreatedata_seq0.hex",
+    "description": "Creates a new transaction with one input with sequence number and one address output"
   },
   { "exec": "./bitcoin-tx",
     "args":
@@ -168,19 +193,22 @@
      "-create",
      "in=5897de6bd6027a475eadd57019d4e6872c396d0716c4875a5f1a6fcfdf385c1f:0:4294967293",
      "outaddr=0.18:13tuJJDR2RgArmgfv6JScSdreahzgc4T6o"],
-    "output_cmp": "txcreatedata_seq0.json"
+    "output_cmp": "txcreatedata_seq0.json",
+    "description": "Creates a new transaction with one input with sequence number and one address output (output in json)"
   },
   { "exec": "./bitcoin-tx",
     "args":
     ["01000000011f5c38dfcf6f1a5f5a87c416076d392c87e6d41970d5ad5e477a02d66bde97580000000000fdffffff0180a81201000000001976a9141fc11f39be1729bf973a7ab6a615ca4729d6457488ac00000000",
      "in=5897de6bd6027a475eadd57019d4e6872c396d0716c4875a5f1a6fcfdf385c1f:0:1"],
-    "output_cmp": "txcreatedata_seq1.hex"
+    "output_cmp": "txcreatedata_seq1.hex",
+    "description": "Adds a new input with sequence number to a transaction"
   },
   { "exec": "./bitcoin-tx",
     "args":
     ["-json",
      "01000000011f5c38dfcf6f1a5f5a87c416076d392c87e6d41970d5ad5e477a02d66bde97580000000000fdffffff0180a81201000000001976a9141fc11f39be1729bf973a7ab6a615ca4729d6457488ac00000000",
      "in=5897de6bd6027a475eadd57019d4e6872c396d0716c4875a5f1a6fcfdf385c1f:0:1"],
-    "output_cmp": "txcreatedata_seq1.json"
+    "output_cmp": "txcreatedata_seq1.json",
+    "description": "Adds a new input with sequence number to a transaction (output in json)"
   }
 ]
diff --git a/src/test/data/blanktx.json b/src/test/data/blanktx.json
index f6d6ab588..51c25a5a9 100644
--- a/src/test/data/blanktx.json
+++ b/src/test/data/blanktx.json
@@ -1,5 +1,6 @@
 {
     "txid": "d21633ba23f70118185227be58a63527675641ad37967e2aa461559f577aec43",
+    "hash": "d21633ba23f70118185227be58a63527675641ad37967e2aa461559f577aec43",
     "version": 1,
     "locktime": 0,
     "vin": [
diff --git a/src/test/data/script_tests.json b/src/test/data/script_tests.json
index 06103ea5b..5c054ed3e 100644
--- a/src/test/data/script_tests.json
+++ b/src/test/data/script_tests.json
@@ -1855,6 +1855,8 @@
     "OK",
     "P2SH with CLEANSTACK"
 ],
+
+["Testing with uncompressed keys in witness v0 without WITNESS_PUBKEYTYPE"],
 [
     [
         "304402200d461c140cfdfcf36b94961db57ae8c18d1cb80e9d95a9e47ac22470c1bf125502201c8dc1cbfef6a3ef90acbbb992ca22fe9466ee6f9d4898eda277a7ac3ab4b25101",
@@ -2139,7 +2141,371 @@
     "P2PK with witness"
 ],
 
-["CHECKSEQUENCEVERIFY tests"], 
+["Testing with compressed keys in witness v0 with WITNESS_PUBKEYTYPE"],
+[
+    [
+        "304402204256146fcf8e73b0fd817ffa2a4e408ff0418ff987dd08a4f485b62546f6c43c02203f3c8c3e2febc051e1222867f5f9d0eaf039d6792911c10940aa3cc74123378e01",
+        "210279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798ac",
+        0.00000001
+    ],
+    "",
+    "0 0x20 0x1863143c14c5166804bd19203356da136c985678cd4d27a1b8c6329604903262",
+    "P2SH,WITNESS,WITNESS_PUBKEYTYPE",
+    "OK",
+    "Basic P2WSH with compressed key"
+],
+[
+    [
+        "304402204edf27486f11432466b744df533e1acac727e0c83e5f912eb289a3df5bf8035f022075809fdd876ede40ad21667eba8b7e96394938f9c9c50f11b6a1280cce2cea8601",
+        "0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798",
+        0.00000001
+    ],
+    "",
+    "0 0x14 0x751e76e8199196d454941c45d1b3a323f1433bd6",
+    "P2SH,WITNESS,WITNESS_PUBKEYTYPE",
+    "OK",
+    "Basic P2WPKH with compressed key"
+],
+[
+    [
+        "304402203a549090cc46bce1e5e95c4922ea2c12747988e0207b04c42f81cdbe87bb1539022050f57a245b875fd5119c419aaf050bcdf41384f0765f04b809e5bced1fe7093d01",
+        "210279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798ac",
+        0.00000001
+    ],
+    "0x22 0x00201863143c14c5166804bd19203356da136c985678cd4d27a1b8c6329604903262",
+    "HASH160 0x14 0xe4300531190587e3880d4c3004f5355d88ff928d EQUAL",
+    "P2SH,WITNESS,WITNESS_PUBKEYTYPE",
+    "OK",
+    "Basic P2SH(P2WSH) with compressed key"
+],
+[
+    [
+        "304402201bc0d53046827f4a35a3166e33e3b3366c4085540dc383b95d21ed2ab11e368a0220333e78c6231214f5f8e59621e15d7eeab0d4e4d0796437e00bfbd2680c5f9c1701",
+        "0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798",
+        0.00000001
+    ],
+    "0x16 0x0014751e76e8199196d454941c45d1b3a323f1433bd6",
+    "HASH160 0x14 0xbcfeb728b584253d5f3f70bcb780e9ef218a68f4 EQUAL",
+    "P2SH,WITNESS,WITNESS_PUBKEYTYPE",
+    "OK",
+    "Basic P2SH(P2WPKH) with compressed key"
+],
+
+["Testing with uncompressed keys in witness v0 with WITNESS_PUBKEYTYPE"],
+[
+    [
+        "304402200d461c140cfdfcf36b94961db57ae8c18d1cb80e9d95a9e47ac22470c1bf125502201c8dc1cbfef6a3ef90acbbb992ca22fe9466ee6f9d4898eda277a7ac3ab4b25101",
+        "410479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8ac",
+        0.00000001
+    ],
+    "",
+    "0 0x20 0xb95237b48faaa69eb078e1170be3b5cbb3fddf16d0a991e14ad274f7b33a4f64",
+    "P2SH,WITNESS,WITNESS_PUBKEYTYPE",
+    "WITNESS_PUBKEYTYPE",
+    "Basic P2WSH"
+],
+[
+    [
+        "304402201e7216e5ccb3b61d46946ec6cc7e8c4e0117d13ac2fd4b152197e4805191c74202203e9903e33e84d9ee1dd13fb057afb7ccfb47006c23f6a067185efbc9dd780fc501",
+        "0479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8",
+        0.00000001
+    ],
+    "",
+    "0 0x14 0x91b24bf9f5288532960ac687abb035127b1d28a5",
+    "P2SH,WITNESS,WITNESS_PUBKEYTYPE",
+    "WITNESS_PUBKEYTYPE",
+    "Basic P2WPKH"
+],
+[
+    [
+        "3044022066e02c19a513049d49349cf5311a1b012b7c4fae023795a18ab1d91c23496c22022025e216342c8e07ce8ef51e8daee88f84306a9de66236cab230bb63067ded1ad301",
+        "410479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8ac",
+        0.00000001
+    ],
+    "0x22 0x0020b95237b48faaa69eb078e1170be3b5cbb3fddf16d0a991e14ad274f7b33a4f64",
+    "HASH160 0x14 0xf386c2ba255cc56d20cfa6ea8b062f8b59945518 EQUAL",
+    "P2SH,WITNESS,WITNESS_PUBKEYTYPE",
+    "WITNESS_PUBKEYTYPE",
+    "Basic P2SH(P2WSH)"
+],
+[
+    [
+        "304402200929d11561cd958460371200f82e9cae64c727a495715a31828e27a7ad57b36d0220361732ced04a6f97351ecca21a56d0b8cd4932c1da1f8f569a2b68e5e48aed7801",
+        "0479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8",
+        0.00000001
+    ],
+    "0x16 0x001491b24bf9f5288532960ac687abb035127b1d28a5",
+    "HASH160 0x14 0x17743beb429c55c942d2ec703b98c4d57c2df5c6 EQUAL",
+    "P2SH,WITNESS,WITNESS_PUBKEYTYPE",
+    "WITNESS_PUBKEYTYPE",
+    "Basic P2SH(P2WPKH)"
+],
+
+["Testing P2WSH multisig with compressed keys"],
+[
+    [
+        "",
+        "304402207eb8a59b5c65fc3f6aeef77066556ed5c541948a53a3ba7f7c375b8eed76ee7502201e036a7a9a98ff919ff94dc905d67a1ec006f79ef7cff0708485c8bb79dce38e01",
+        "5121038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508210279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f8179852ae",
+        0.00000001
+    ],
+    "",
+    "0 0x20 0x06c24420938f0fa3c1cb2707d867154220dca365cdbfa0dd2a83854730221460",
+    "P2SH,WITNESS,WITNESS_PUBKEYTYPE",
+    "OK",
+    "P2WSH CHECKMULTISIG with compressed keys"
+],
+[
+    [
+        "",
+        "3044022033706aed33b8155d5486df3b9bca8cdd3bd4bdb5436dce46d72cdaba51d22b4002203626e94fe53a178af46624f17315c6931f20a30b103f5e044e1eda0c3fe185c601",
+        "5121038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508210279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f8179852ae",
+        0.00000001
+    ],
+    "0x22 0x002006c24420938f0fa3c1cb2707d867154220dca365cdbfa0dd2a83854730221460",
+    "HASH160 0x14 0x26282aad7c29369d15fed062a778b6100d31a340 EQUAL",
+    "P2SH,WITNESS,WITNESS_PUBKEYTYPE",
+    "OK",
+    "P2SH(P2WSH) CHECKMULTISIG with compressed keys"
+],
+[
+    [
+        "",
+        "304402204048b7371ab1c544362efb89af0c80154747d665aa4fcfb2edfd2d161e57b42e02207e043748e96637080ffc3acbd4dcc6fee1e58d30f6d1269535f32188e5ddae7301",
+        "5121038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508210279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f8179852ae",
+        0.00000001
+    ],
+    "",
+    "0 0x20 0x06c24420938f0fa3c1cb2707d867154220dca365cdbfa0dd2a83854730221460",
+    "P2SH,WITNESS,WITNESS_PUBKEYTYPE",
+    "OK",
+    "P2WSH CHECKMULTISIG with compressed keys"
+],
+[
+    [
+        "",
+        "3044022073902ef0b8a554c36c44cc03c1b64df96ce2914ebcf946f5bb36078fd5245cdf02205b148f1ba127065fb8c83a5a9576f2dcd111739788ed4bb3ee08b2bd3860c91c01",
+        "5121038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508210279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f8179852ae",
+        0.00000001
+    ],
+    "0x22 0x002006c24420938f0fa3c1cb2707d867154220dca365cdbfa0dd2a83854730221460",
+    "HASH160 0x14 0x26282aad7c29369d15fed062a778b6100d31a340 EQUAL",
+    "P2SH,WITNESS,WITNESS_PUBKEYTYPE",
+    "OK",
+    "P2SH(P2WSH) CHECKMULTISIG with compressed keys"
+],
+
+["Testing P2WSH multisig with compressed and uncompressed keys (first key being the key closer to the top of stack)"],
+[
+    [
+        "",
+        "304402202d092ededd1f060609dbf8cb76950634ff42b3e62cf4adb69ab92397b07d742302204ff886f8d0817491a96d1daccdcc820f6feb122ee6230143303100db37dfa79f01",
+        "5121038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508410479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b852ae",
+        0.00000001
+    ],
+    "",
+    "0 0x20 0x08a6665ebfd43b02323423e764e185d98d1587f903b81507dbb69bfc41005efa",
+    "P2SH,WITNESS",
+    "OK",
+    "P2WSH CHECKMULTISIG with first key uncompressed and signing with the first key"
+],
+[
+    [
+        "",
+        "304402202dd7e91243f2235481ffb626c3b7baf2c859ae3a5a77fb750ef97b99a8125dc002204960de3d3c3ab9496e218ec57e5240e0e10a6f9546316fe240c216d45116d29301",
+        "5121038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508410479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b852ae",
+        0.00000001
+    ],
+    "0x22 0x002008a6665ebfd43b02323423e764e185d98d1587f903b81507dbb69bfc41005efa",
+    "HASH160 0x14 0x6f5ecd4b83b77f3c438f5214eff96454934fc5d1 EQUAL",
+    "P2SH,WITNESS",
+    "OK",
+    "P2SH(P2WSH) CHECKMULTISIG first key uncompressed and signing with the first key"
+],
+[
+    [
+        "",
+        "304402202d092ededd1f060609dbf8cb76950634ff42b3e62cf4adb69ab92397b07d742302204ff886f8d0817491a96d1daccdcc820f6feb122ee6230143303100db37dfa79f01",
+        "5121038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508410479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b852ae",
+        0.00000001
+    ],
+    "",
+    "0 0x20 0x08a6665ebfd43b02323423e764e185d98d1587f903b81507dbb69bfc41005efa",
+    "P2SH,WITNESS,WITNESS_PUBKEYTYPE",
+    "WITNESS_PUBKEYTYPE",
+    "P2WSH CHECKMULTISIG with first key uncompressed and signing with the first key"
+],
+[
+    [
+        "",
+        "304402202dd7e91243f2235481ffb626c3b7baf2c859ae3a5a77fb750ef97b99a8125dc002204960de3d3c3ab9496e218ec57e5240e0e10a6f9546316fe240c216d45116d29301",
+        "5121038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508410479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b852ae",
+        0.00000001
+    ],
+    "0x22 0x002008a6665ebfd43b02323423e764e185d98d1587f903b81507dbb69bfc41005efa",
+    "HASH160 0x14 0x6f5ecd4b83b77f3c438f5214eff96454934fc5d1 EQUAL",
+    "P2SH,WITNESS,WITNESS_PUBKEYTYPE",
+    "WITNESS_PUBKEYTYPE",
+    "P2SH(P2WSH) CHECKMULTISIG with first key uncompressed and signing with the first key"
+],
+[
+    [
+        "",
+        "304402201e9e6f7deef5b2f21d8223c5189b7d5e82d237c10e97165dd08f547c4e5ce6ed02206796372eb1cc6acb52e13ee2d7f45807780bf96b132cb6697f69434be74b1af901",
+        "5121038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508410479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b852ae",
+        0.00000001
+    ],
+    "",
+    "0 0x20 0x08a6665ebfd43b02323423e764e185d98d1587f903b81507dbb69bfc41005efa",
+    "P2SH,WITNESS",
+    "OK",
+    "P2WSH CHECKMULTISIG with first key uncompressed and signing with the second key"
+],
+[
+    [
+        "",
+        "3044022045e667f3f0f3147b95597a24babe9afecea1f649fd23637dfa7ed7e9f3ac18440220295748e81005231135289fe3a88338dabba55afa1bdb4478691337009d82b68d01",
+        "5121038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508410479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b852ae",
+        0.00000001
+    ],
+    "0x22 0x002008a6665ebfd43b02323423e764e185d98d1587f903b81507dbb69bfc41005efa",
+    "HASH160 0x14 0x6f5ecd4b83b77f3c438f5214eff96454934fc5d1 EQUAL",
+    "P2SH,WITNESS",
+    "OK",
+    "P2SH(P2WSH) CHECKMULTISIG with first key uncompressed and signing with the second key"
+],
+[
+    [
+        "",
+        "304402201e9e6f7deef5b2f21d8223c5189b7d5e82d237c10e97165dd08f547c4e5ce6ed02206796372eb1cc6acb52e13ee2d7f45807780bf96b132cb6697f69434be74b1af901",
+        "5121038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508410479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b852ae",
+        0.00000001
+    ],
+    "",
+    "0 0x20 0x08a6665ebfd43b02323423e764e185d98d1587f903b81507dbb69bfc41005efa",
+    "P2SH,WITNESS,WITNESS_PUBKEYTYPE",
+    "WITNESS_PUBKEYTYPE",
+    "P2WSH CHECKMULTISIG with first key uncompressed and signing with the second key"
+],
+[
+    [
+        "",
+        "3044022045e667f3f0f3147b95597a24babe9afecea1f649fd23637dfa7ed7e9f3ac18440220295748e81005231135289fe3a88338dabba55afa1bdb4478691337009d82b68d01",
+        "5121038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508410479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b852ae",
+        0.00000001
+    ],
+    "0x22 0x002008a6665ebfd43b02323423e764e185d98d1587f903b81507dbb69bfc41005efa",
+    "HASH160 0x14 0x6f5ecd4b83b77f3c438f5214eff96454934fc5d1 EQUAL",
+    "P2SH,WITNESS,WITNESS_PUBKEYTYPE",
+    "WITNESS_PUBKEYTYPE",
+    "P2SH(P2WSH) CHECKMULTISIG with first key uncompressed and signing with the second key"
+],
+[
+    [
+        "",
+        "3044022046f5367a261fd8f8d7de6eb390491344f8ec2501638fb9a1095a0599a21d3f4c02205c1b3b51d20091c5f1020841bbca87b44ebe25405c64e4acf758f2eae8665f8401",
+        "5141048282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f5150811f8a8098557dfe45e8256e830b60ace62d613ac2f7b17bed31b6eaff6e26caf210279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f8179852ae",
+        0.00000001
+    ],
+    "",
+    "0 0x20 0x230828ed48871f0f362ce9432aa52f620f442cc8d9ce7a8b5e798365595a38bb",
+    "P2SH,WITNESS",
+    "OK",
+    "P2WSH CHECKMULTISIG with second key uncompressed and signing with the first key"
+],
+[
+    [
+        "",
+        "3044022053e210e4fb1881e6092fd75c3efc5163105599e246ded661c0ee2b5682cc2d6c02203a26b7ada8682a095b84c6d1b881637000b47d761fc837c4cee33555296d63f101",
+        "5141048282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f5150811f8a8098557dfe45e8256e830b60ace62d613ac2f7b17bed31b6eaff6e26caf210279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f8179852ae",
+        0.00000001
+    ],
+    "0x22 0x0020230828ed48871f0f362ce9432aa52f620f442cc8d9ce7a8b5e798365595a38bb",
+    "HASH160 0x14 0x3478e7019ce61a68148f87549579b704cbe4c393 EQUAL",
+    "P2SH,WITNESS",
+    "OK",
+    "P2SH(P2WSH) CHECKMULTISIG second key uncompressed and signing with the first key"
+],
+[
+    [
+        "",
+        "3044022046f5367a261fd8f8d7de6eb390491344f8ec2501638fb9a1095a0599a21d3f4c02205c1b3b51d20091c5f1020841bbca87b44ebe25405c64e4acf758f2eae8665f8401",
+        "5141048282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f5150811f8a8098557dfe45e8256e830b60ace62d613ac2f7b17bed31b6eaff6e26caf210279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f8179852ae",
+        0.00000001
+    ],
+    "",
+    "0 0x20 0x230828ed48871f0f362ce9432aa52f620f442cc8d9ce7a8b5e798365595a38bb",
+    "P2SH,WITNESS,WITNESS_PUBKEYTYPE",
+    "OK",
+    "P2WSH CHECKMULTISIG with second key uncompressed and signing with the first key should pass as the uncompressed key is not used"
+],
+[
+    [
+        "",
+        "3044022053e210e4fb1881e6092fd75c3efc5163105599e246ded661c0ee2b5682cc2d6c02203a26b7ada8682a095b84c6d1b881637000b47d761fc837c4cee33555296d63f101",
+        "5141048282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f5150811f8a8098557dfe45e8256e830b60ace62d613ac2f7b17bed31b6eaff6e26caf210279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f8179852ae",
+        0.00000001
+    ],
+    "0x22 0x0020230828ed48871f0f362ce9432aa52f620f442cc8d9ce7a8b5e798365595a38bb",
+    "HASH160 0x14 0x3478e7019ce61a68148f87549579b704cbe4c393 EQUAL",
+    "P2SH,WITNESS,WITNESS_PUBKEYTYPE",
+    "OK",
+    "P2SH(P2WSH) CHECKMULTISIG with second key uncompressed and signing with the first key should pass as the uncompressed key is not used"
+],
+[
+    [
+        "",
+        "304402206c6d9f5daf85b54af2a93ec38b15ab27f205dbf5c735365ff12451e43613d1f40220736a44be63423ed5ebf53491618b7cc3d8a5093861908da853739c73717938b701",
+        "5141048282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f5150811f8a8098557dfe45e8256e830b60ace62d613ac2f7b17bed31b6eaff6e26caf210279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f8179852ae",
+        0.00000001
+    ],
+    "",
+    "0 0x20 0x230828ed48871f0f362ce9432aa52f620f442cc8d9ce7a8b5e798365595a38bb",
+    "P2SH,WITNESS",
+    "OK",
+    "P2WSH CHECKMULTISIG with second key uncompressed and signing with the second key"
+],
+[
+    [
+        "",
+        "30440220687871bc6144012d75baf585bb26ce13997f7d8c626f4d8825b069c3b2d064470220108936fe1c57327764782253e99090b09c203ec400ed35ce9e026ce2ecf842a001",
+        "5141048282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f5150811f8a8098557dfe45e8256e830b60ace62d613ac2f7b17bed31b6eaff6e26caf210279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f8179852ae",
+        0.00000001
+    ],
+    "0x22 0x0020230828ed48871f0f362ce9432aa52f620f442cc8d9ce7a8b5e798365595a38bb",
+    "HASH160 0x14 0x3478e7019ce61a68148f87549579b704cbe4c393 EQUAL",
+    "P2SH,WITNESS",
+    "OK",
+    "P2SH(P2WSH) CHECKMULTISIG with second key uncompressed and signing with the second key"
+],
+[
+    [
+        "",
+        "304402206c6d9f5daf85b54af2a93ec38b15ab27f205dbf5c735365ff12451e43613d1f40220736a44be63423ed5ebf53491618b7cc3d8a5093861908da853739c73717938b701",
+        "5141048282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f5150811f8a8098557dfe45e8256e830b60ace62d613ac2f7b17bed31b6eaff6e26caf210279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f8179852ae",
+        0.00000001
+    ],
+    "",
+    "0 0x20 0x230828ed48871f0f362ce9432aa52f620f442cc8d9ce7a8b5e798365595a38bb",
+    "P2SH,WITNESS,WITNESS_PUBKEYTYPE",
+    "WITNESS_PUBKEYTYPE",
+    "P2WSH CHECKMULTISIG with second key uncompressed and signing with the second key"
+],
+[
+    [
+        "",
+        "30440220687871bc6144012d75baf585bb26ce13997f7d8c626f4d8825b069c3b2d064470220108936fe1c57327764782253e99090b09c203ec400ed35ce9e026ce2ecf842a001",
+        "5141048282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f5150811f8a8098557dfe45e8256e830b60ace62d613ac2f7b17bed31b6eaff6e26caf210279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f8179852ae",
+        0.00000001
+    ],
+    "0x22 0x0020230828ed48871f0f362ce9432aa52f620f442cc8d9ce7a8b5e798365595a38bb",
+    "HASH160 0x14 0x3478e7019ce61a68148f87549579b704cbe4c393 EQUAL",
+    "P2SH,WITNESS,WITNESS_PUBKEYTYPE",
+    "WITNESS_PUBKEYTYPE",
+    "P2SH(P2WSH) CHECKMULTISIG with second key uncompressed and signing with the second key"
+],
+
+["CHECKSEQUENCEVERIFY tests"],
 ["", "CHECKSEQUENCEVERIFY", "CHECKSEQUENCEVERIFY", "INVALID_STACK_OPERATION", "CSV automatically fails on a empty stack"],
 ["-1", "CHECKSEQUENCEVERIFY", "CHECKSEQUENCEVERIFY", "NEGATIVE_LOCKTIME", "CSV automatically fails if stack top is negative"],
 ["0x0100", "CHECKSEQUENCEVERIFY", "CHECKSEQUENCEVERIFY,MINIMALDATA", "UNKNOWN_ERROR", "CSV fails if stack top is not minimally encoded"],
diff --git a/src/test/data/tt-delin1-out.json b/src/test/data/tt-delin1-out.json
index 2c7a68636..712a2c27f 100644
--- a/src/test/data/tt-delin1-out.json
+++ b/src/test/data/tt-delin1-out.json
@@ -1,5 +1,6 @@
 {
     "txid": "81b2035be1da1abe745c6141174a73d151009ec17b3d5ebffa2e177408c50dfd",
+    "hash": "81b2035be1da1abe745c6141174a73d151009ec17b3d5ebffa2e177408c50dfd",
     "version": 1,
     "locktime": 0,
     "vin": [
diff --git a/src/test/data/tt-delout1-out.json b/src/test/data/tt-delout1-out.json
index 9cf8cbb16..afc4e9576 100644
--- a/src/test/data/tt-delout1-out.json
+++ b/src/test/data/tt-delout1-out.json
@@ -1,5 +1,6 @@
 {
     "txid": "c46ccd75b5050e942b2e86a3648f843f525fe6fc000bf0534ba5973063354493",
+    "hash": "c46ccd75b5050e942b2e86a3648f843f525fe6fc000bf0534ba5973063354493",
     "version": 1,
     "locktime": 0,
     "vin": [
diff --git a/src/test/data/tt-locktime317000-out.json b/src/test/data/tt-locktime317000-out.json
index 65b6a4451..2b9075f8a 100644
--- a/src/test/data/tt-locktime317000-out.json
+++ b/src/test/data/tt-locktime317000-out.json
@@ -1,5 +1,6 @@
 {
     "txid": "aded538f642c17e15f4d3306b8be7e1a4d1ae0c4616d641ab51ea09ba65e5cb5",
+    "hash": "aded538f642c17e15f4d3306b8be7e1a4d1ae0c4616d641ab51ea09ba65e5cb5",
     "version": 1,
     "locktime": 317000,
     "vin": [
diff --git a/src/test/data/txcreate1.json b/src/test/data/txcreate1.json
index 3890dbaf6..567e8026a 100644
--- a/src/test/data/txcreate1.json
+++ b/src/test/data/txcreate1.json
@@ -1,5 +1,6 @@
 {
     "txid": "f70f0d6c71416ed538e37549f430ab3665fee2437a42f10238c1bd490e782231",
+    "hash": "f70f0d6c71416ed538e37549f430ab3665fee2437a42f10238c1bd490e782231",
     "version": 1,
     "locktime": 0,
     "vin": [
diff --git a/src/test/data/txcreate2.json b/src/test/data/txcreate2.json
index c56293eaf..a70c1d302 100644
--- a/src/test/data/txcreate2.json
+++ b/src/test/data/txcreate2.json
@@ -1,5 +1,6 @@
 {
     "txid": "cf90229625e9eb10f6be8156bf6aa5ec2eca19a42b1e05c11f3029b560a32e13",
+    "hash": "cf90229625e9eb10f6be8156bf6aa5ec2eca19a42b1e05c11f3029b560a32e13",
     "version": 1,
     "locktime": 0,
     "vin": [
diff --git a/src/test/data/txcreatedata1.json b/src/test/data/txcreatedata1.json
index 2fed22810..760518d30 100644
--- a/src/test/data/txcreatedata1.json
+++ b/src/test/data/txcreatedata1.json
@@ -1,5 +1,6 @@
 {
     "txid": "07894b4d12fe7853dd911402db1620920d261b9627c447f931417d330c25f06e",
+    "hash": "07894b4d12fe7853dd911402db1620920d261b9627c447f931417d330c25f06e",
     "version": 1,
     "locktime": 0,
     "vin": [
diff --git a/src/test/data/txcreatedata2.json b/src/test/data/txcreatedata2.json
index 3d4d367f3..56dfe4a1b 100644
--- a/src/test/data/txcreatedata2.json
+++ b/src/test/data/txcreatedata2.json
@@ -1,5 +1,6 @@
 {
     "txid": "4ed17118f5e932ba8c75c461787d171bc02a016d8557cb5bcf34cd416c27bb8b",
+    "hash": "4ed17118f5e932ba8c75c461787d171bc02a016d8557cb5bcf34cd416c27bb8b",
     "version": 1,
     "locktime": 0,
     "vin": [
diff --git a/src/test/data/txcreatedata_seq0.json b/src/test/data/txcreatedata_seq0.json
index f25aa43c2..9bc0ed459 100644
--- a/src/test/data/txcreatedata_seq0.json
+++ b/src/test/data/txcreatedata_seq0.json
@@ -1,5 +1,6 @@
 {
     "txid": "71603ccb1cd76d73d76eb6cfd5f0b9df6d65d90d76860ee52cb461c4be7032e8",
+    "hash": "71603ccb1cd76d73d76eb6cfd5f0b9df6d65d90d76860ee52cb461c4be7032e8",
     "version": 1,
     "locktime": 0,
     "vin": [
diff --git a/src/test/data/txcreatedata_seq1.json b/src/test/data/txcreatedata_seq1.json
index 33585d6df..d32325541 100644
--- a/src/test/data/txcreatedata_seq1.json
+++ b/src/test/data/txcreatedata_seq1.json
@@ -1,5 +1,6 @@
 {
     "txid": "c4dea671b0d7b48f8ab10bc46650e8329d3c5766931f548f513847a19f5ba75b",
+    "hash": "c4dea671b0d7b48f8ab10bc46650e8329d3c5766931f548f513847a19f5ba75b",
     "version": 1,
     "locktime": 0,
     "vin": [
diff --git a/src/test/data/txcreatesign.json b/src/test/data/txcreatesign.json
index 057fe9b01..ff39e71b4 100644
--- a/src/test/data/txcreatesign.json
+++ b/src/test/data/txcreatesign.json
@@ -1,5 +1,6 @@
 {
     "txid": "977e7cd286cb72cd470d539ba6cb48400f8f387d97451d45cdb8819437a303af",
+    "hash": "977e7cd286cb72cd470d539ba6cb48400f8f387d97451d45cdb8819437a303af",
     "version": 1,
     "locktime": 0,
     "vin": [
diff --git a/src/test/script_tests.cpp b/src/test/script_tests.cpp
index 7971b5122..561adb8ea 100644
--- a/src/test/script_tests.cpp
+++ b/src/test/script_tests.cpp
@@ -99,6 +99,7 @@ static ScriptErrorDesc script_errors[]={
     {SCRIPT_ERR_WITNESS_MALLEATED, "WITNESS_MALLEATED"},
     {SCRIPT_ERR_WITNESS_MALLEATED_P2SH, "WITNESS_MALLEATED_P2SH"},
     {SCRIPT_ERR_WITNESS_UNEXPECTED, "WITNESS_UNEXPECTED"},
+    {SCRIPT_ERR_WITNESS_PUBKEYTYPE, "WITNESS_PUBKEYTYPE"},
 };
 
 const char *FormatScriptError(ScriptError_t err)
@@ -825,6 +826,99 @@ BOOST_AUTO_TEST_CASE(script_build)
                                 "P2PK with witness", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH
                                ).PushSig(keys.key0).Push("0").AsWit().ScriptError(SCRIPT_ERR_WITNESS_UNEXPECTED));
 
+    // Compressed keys should pass SCRIPT_VERIFY_WITNESS_PUBKEYTYPE
+    tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey0C) << OP_CHECKSIG,
+                                "Basic P2WSH with compressed key", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS_PUBKEYTYPE, false, WITNESS_SH,
+                                0, 1).PushWitSig(keys.key0C).PushWitRedeem());
+    tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey0C),
+                                "Basic P2WPKH with compressed key", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS_PUBKEYTYPE, false, WITNESS_PKH,
+                                0, 1).PushWitSig(keys.key0C).Push(keys.pubkey0C).AsWit());
+    tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey0C) << OP_CHECKSIG,
+                                "Basic P2SH(P2WSH) with compressed key", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS_PUBKEYTYPE, true, WITNESS_SH,
+                                0, 1).PushWitSig(keys.key0C).PushWitRedeem().PushRedeem());
+    tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey0C),
+                                "Basic P2SH(P2WPKH) with compressed key", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS_PUBKEYTYPE, true, WITNESS_PKH,
+                                0, 1).PushWitSig(keys.key0C).Push(keys.pubkey0C).AsWit().PushRedeem());
+
+    // Testing uncompressed key in witness with SCRIPT_VERIFY_WITNESS_PUBKEYTYPE
+    tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey0) << OP_CHECKSIG,
+                                "Basic P2WSH", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS_PUBKEYTYPE, false, WITNESS_SH,
+                                0, 1).PushWitSig(keys.key0).PushWitRedeem().ScriptError(SCRIPT_ERR_WITNESS_PUBKEYTYPE));
+    tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey0),
+                                "Basic P2WPKH", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS_PUBKEYTYPE, false, WITNESS_PKH,
+                                0, 1).PushWitSig(keys.key0).Push(keys.pubkey0).AsWit().ScriptError(SCRIPT_ERR_WITNESS_PUBKEYTYPE));
+    tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey0) << OP_CHECKSIG,
+                                "Basic P2SH(P2WSH)", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS_PUBKEYTYPE, true, WITNESS_SH,
+                                0, 1).PushWitSig(keys.key0).PushWitRedeem().PushRedeem().ScriptError(SCRIPT_ERR_WITNESS_PUBKEYTYPE));
+    tests.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey0),
+                                "Basic P2SH(P2WPKH)", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS_PUBKEYTYPE, true, WITNESS_PKH,
+                                0, 1).PushWitSig(keys.key0).Push(keys.pubkey0).AsWit().PushRedeem().ScriptError(SCRIPT_ERR_WITNESS_PUBKEYTYPE));
+
+    // P2WSH 1-of-2 multisig with compressed keys
+    tests.push_back(TestBuilder(CScript() << OP_1 << ToByteVector(keys.pubkey1C) << ToByteVector(keys.pubkey0C) << OP_2 << OP_CHECKMULTISIG,
+                                "P2WSH CHECKMULTISIG with compressed keys", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS_PUBKEYTYPE, false, WITNESS_SH,
+                                0, 1).Push(CScript()).AsWit().PushWitSig(keys.key0C).PushWitRedeem());
+    tests.push_back(TestBuilder(CScript() << OP_1 << ToByteVector(keys.pubkey1C) << ToByteVector(keys.pubkey0C) << OP_2 << OP_CHECKMULTISIG,
+                                "P2SH(P2WSH) CHECKMULTISIG with compressed keys", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS_PUBKEYTYPE, true, WITNESS_SH,
+                                0, 1).Push(CScript()).AsWit().PushWitSig(keys.key0C).PushWitRedeem().PushRedeem());
+    tests.push_back(TestBuilder(CScript() << OP_1 << ToByteVector(keys.pubkey1C) << ToByteVector(keys.pubkey0C) << OP_2 << OP_CHECKMULTISIG,
+                                "P2WSH CHECKMULTISIG with compressed keys", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS_PUBKEYTYPE, false, WITNESS_SH,
+                                0, 1).Push(CScript()).AsWit().PushWitSig(keys.key1C).PushWitRedeem());
+    tests.push_back(TestBuilder(CScript() << OP_1 << ToByteVector(keys.pubkey1C) << ToByteVector(keys.pubkey0C) << OP_2 << OP_CHECKMULTISIG,
+                                "P2SH(P2WSH) CHECKMULTISIG with compressed keys", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS_PUBKEYTYPE, true, WITNESS_SH,
+                                0, 1).Push(CScript()).AsWit().PushWitSig(keys.key1C).PushWitRedeem().PushRedeem());
+
+    // P2WSH 1-of-2 multisig with first key uncompressed
+    tests.push_back(TestBuilder(CScript() << OP_1 << ToByteVector(keys.pubkey1C) << ToByteVector(keys.pubkey0) << OP_2 << OP_CHECKMULTISIG,
+                                "P2WSH CHECKMULTISIG with first key uncompressed and signing with the first key", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, false, WITNESS_SH,
+                                0, 1).Push(CScript()).AsWit().PushWitSig(keys.key0).PushWitRedeem());
+    tests.push_back(TestBuilder(CScript() << OP_1 << ToByteVector(keys.pubkey1C) << ToByteVector(keys.pubkey0) << OP_2 << OP_CHECKMULTISIG,
+                                "P2SH(P2WSH) CHECKMULTISIG first key uncompressed and signing with the first key", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, true, WITNESS_SH,
+                                0, 1).Push(CScript()).AsWit().PushWitSig(keys.key0).PushWitRedeem().PushRedeem());
+    tests.push_back(TestBuilder(CScript() << OP_1 << ToByteVector(keys.pubkey1C) << ToByteVector(keys.pubkey0) << OP_2 << OP_CHECKMULTISIG,
+                                "P2WSH CHECKMULTISIG with first key uncompressed and signing with the first key", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS_PUBKEYTYPE, false, WITNESS_SH,
+                                0, 1).Push(CScript()).AsWit().PushWitSig(keys.key0).PushWitRedeem().ScriptError(SCRIPT_ERR_WITNESS_PUBKEYTYPE));
+    tests.push_back(TestBuilder(CScript() << OP_1 << ToByteVector(keys.pubkey1C) << ToByteVector(keys.pubkey0) << OP_2 << OP_CHECKMULTISIG,
+                                "P2SH(P2WSH) CHECKMULTISIG with first key uncompressed and signing with the first key", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS_PUBKEYTYPE, true, WITNESS_SH,
+                                0, 1).Push(CScript()).AsWit().PushWitSig(keys.key0).PushWitRedeem().PushRedeem().ScriptError(SCRIPT_ERR_WITNESS_PUBKEYTYPE));
+    tests.push_back(TestBuilder(CScript() << OP_1 << ToByteVector(keys.pubkey1C) << ToByteVector(keys.pubkey0) << OP_2 << OP_CHECKMULTISIG,
+                                "P2WSH CHECKMULTISIG with first key uncompressed and signing with the second key", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, false, WITNESS_SH,
+                                0, 1).Push(CScript()).AsWit().PushWitSig(keys.key1C).PushWitRedeem());
+    tests.push_back(TestBuilder(CScript() << OP_1 << ToByteVector(keys.pubkey1C) << ToByteVector(keys.pubkey0) << OP_2 << OP_CHECKMULTISIG,
+                                "P2SH(P2WSH) CHECKMULTISIG with first key uncompressed and signing with the second key", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, true, WITNESS_SH,
+                                0, 1).Push(CScript()).AsWit().PushWitSig(keys.key1C).PushWitRedeem().PushRedeem());
+    tests.push_back(TestBuilder(CScript() << OP_1 << ToByteVector(keys.pubkey1C) << ToByteVector(keys.pubkey0) << OP_2 << OP_CHECKMULTISIG,
+                                "P2WSH CHECKMULTISIG with first key uncompressed and signing with the second key", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS_PUBKEYTYPE, false, WITNESS_SH,
+                                0, 1).Push(CScript()).AsWit().PushWitSig(keys.key1C).PushWitRedeem().ScriptError(SCRIPT_ERR_WITNESS_PUBKEYTYPE));
+    tests.push_back(TestBuilder(CScript() << OP_1 << ToByteVector(keys.pubkey1C) << ToByteVector(keys.pubkey0) << OP_2 << OP_CHECKMULTISIG,
+                                "P2SH(P2WSH) CHECKMULTISIG with first key uncompressed and signing with the second key", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS_PUBKEYTYPE, true, WITNESS_SH,
+                                0, 1).Push(CScript()).AsWit().PushWitSig(keys.key1C).PushWitRedeem().PushRedeem().ScriptError(SCRIPT_ERR_WITNESS_PUBKEYTYPE));
+    // P2WSH 1-of-2 multisig with second key uncompressed
+    tests.push_back(TestBuilder(CScript() << OP_1 << ToByteVector(keys.pubkey1) << ToByteVector(keys.pubkey0C) << OP_2 << OP_CHECKMULTISIG,
+                                "P2WSH CHECKMULTISIG with second key uncompressed and signing with the first key", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, false, WITNESS_SH,
+                                0, 1).Push(CScript()).AsWit().PushWitSig(keys.key0C).PushWitRedeem());
+    tests.push_back(TestBuilder(CScript() << OP_1 << ToByteVector(keys.pubkey1) << ToByteVector(keys.pubkey0C) << OP_2 << OP_CHECKMULTISIG,
+                                "P2SH(P2WSH) CHECKMULTISIG second key uncompressed and signing with the first key", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, true, WITNESS_SH,
+                                0, 1).Push(CScript()).AsWit().PushWitSig(keys.key0C).PushWitRedeem().PushRedeem());
+    tests.push_back(TestBuilder(CScript() << OP_1 << ToByteVector(keys.pubkey1) << ToByteVector(keys.pubkey0C) << OP_2 << OP_CHECKMULTISIG,
+                                "P2WSH CHECKMULTISIG with second key uncompressed and signing with the first key should pass as the uncompressed key is not used", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS_PUBKEYTYPE, false, WITNESS_SH,
+                                0, 1).Push(CScript()).AsWit().PushWitSig(keys.key0C).PushWitRedeem());
+    tests.push_back(TestBuilder(CScript() << OP_1 << ToByteVector(keys.pubkey1) << ToByteVector(keys.pubkey0C) << OP_2 << OP_CHECKMULTISIG,
+                                "P2SH(P2WSH) CHECKMULTISIG with second key uncompressed and signing with the first key should pass as the uncompressed key is not used", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS_PUBKEYTYPE, true, WITNESS_SH,
+                                0, 1).Push(CScript()).AsWit().PushWitSig(keys.key0C).PushWitRedeem().PushRedeem());
+    tests.push_back(TestBuilder(CScript() << OP_1 << ToByteVector(keys.pubkey1) << ToByteVector(keys.pubkey0C) << OP_2 << OP_CHECKMULTISIG,
+                                "P2WSH CHECKMULTISIG with second key uncompressed and signing with the second key", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, false, WITNESS_SH,
+                                0, 1).Push(CScript()).AsWit().PushWitSig(keys.key1).PushWitRedeem());
+    tests.push_back(TestBuilder(CScript() << OP_1 << ToByteVector(keys.pubkey1) << ToByteVector(keys.pubkey0C) << OP_2 << OP_CHECKMULTISIG,
+                                "P2SH(P2WSH) CHECKMULTISIG with second key uncompressed and signing with the second key", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, true, WITNESS_SH,
+                                0, 1).Push(CScript()).AsWit().PushWitSig(keys.key1).PushWitRedeem().PushRedeem());
+    tests.push_back(TestBuilder(CScript() << OP_1 << ToByteVector(keys.pubkey1) << ToByteVector(keys.pubkey0C) << OP_2 << OP_CHECKMULTISIG,
+                                "P2WSH CHECKMULTISIG with second key uncompressed and signing with the second key", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS_PUBKEYTYPE, false, WITNESS_SH,
+                                0, 1).Push(CScript()).AsWit().PushWitSig(keys.key1).PushWitRedeem().ScriptError(SCRIPT_ERR_WITNESS_PUBKEYTYPE));
+    tests.push_back(TestBuilder(CScript() << OP_1 << ToByteVector(keys.pubkey1) << ToByteVector(keys.pubkey0C) << OP_2 << OP_CHECKMULTISIG,
+                                "P2SH(P2WSH) CHECKMULTISIG with second key uncompressed and signing with the second key", SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH | SCRIPT_VERIFY_WITNESS_PUBKEYTYPE, true, WITNESS_SH,
+                                0, 1).Push(CScript()).AsWit().PushWitSig(keys.key1).PushWitRedeem().PushRedeem().ScriptError(SCRIPT_ERR_WITNESS_PUBKEYTYPE));
+
     std::set<std::string> tests_set;
 
     {
diff --git a/src/test/transaction_tests.cpp b/src/test/transaction_tests.cpp
index 6163d2f63..34d9547f3 100644
--- a/src/test/transaction_tests.cpp
+++ b/src/test/transaction_tests.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2011-2015 The Bitcoin Core developers
+// Copyright (c) 2011-2016 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -55,7 +55,8 @@ static std::map<string, unsigned int> mapFlagNames = boost::assign::map_list_of
     (string("CHECKLOCKTIMEVERIFY"), (unsigned int)SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY)
     (string("CHECKSEQUENCEVERIFY"), (unsigned int)SCRIPT_VERIFY_CHECKSEQUENCEVERIFY)
     (string("WITNESS"), (unsigned int)SCRIPT_VERIFY_WITNESS)
-    (string("DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM"), (unsigned int)SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM);
+    (string("DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM"), (unsigned int)SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM)
+    (string("WITNESS_PUBKEYTYPE"), (unsigned int)SCRIPT_VERIFY_WITNESS_PUBKEYTYPE);
 
 unsigned int ParseScriptFlags(string strFlags)
 {
@@ -429,7 +430,7 @@ BOOST_AUTO_TEST_CASE(test_big_witness_transaction) {
     mtx.nVersion = 1;
 
     CKey key;
-    key.MakeNewKey(false);
+    key.MakeNewKey(true); // Need to use compressed keys in segwit or the signing will fail
     CBasicKeyStore keystore;
     keystore.AddKeyPubKey(key, key.GetPubKey());
     CKeyID hash = key.GetPubKey().GetID();
@@ -625,30 +626,13 @@ BOOST_AUTO_TEST_CASE(test_witness)
     CheckWithFlag(output1, input2, SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, false);
     CheckWithFlag(output1, input2, STANDARD_SCRIPT_VERIFY_FLAGS, false);
 
-    // Witness pay-to-uncompressed-pubkey (v1).
-    CreateCreditAndSpend(keystore, GetScriptForWitness(scriptPubkey1L), output1, input1);
-    CreateCreditAndSpend(keystore, GetScriptForWitness(scriptPubkey2L), output2, input2);
-    CheckWithFlag(output1, input1, 0, true);
-    CheckWithFlag(output1, input1, SCRIPT_VERIFY_P2SH, true);
-    CheckWithFlag(output1, input1, SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, true);
-    CheckWithFlag(output1, input1, STANDARD_SCRIPT_VERIFY_FLAGS, true);
-    CheckWithFlag(output1, input2, 0, true);
-    CheckWithFlag(output1, input2, SCRIPT_VERIFY_P2SH, true);
-    CheckWithFlag(output1, input2, SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, false);
-    CheckWithFlag(output1, input2, STANDARD_SCRIPT_VERIFY_FLAGS, false);
+    // Signing disabled for witness pay-to-uncompressed-pubkey (v1).
+    CreateCreditAndSpend(keystore, GetScriptForWitness(scriptPubkey1L), output1, input1, false);
+    CreateCreditAndSpend(keystore, GetScriptForWitness(scriptPubkey2L), output2, input2, false);
 
-    // P2SH witness pay-to-uncompressed-pubkey (v1).
-    CreateCreditAndSpend(keystore, GetScriptForDestination(CScriptID(GetScriptForWitness(scriptPubkey1L))), output1, input1);
-    CreateCreditAndSpend(keystore, GetScriptForDestination(CScriptID(GetScriptForWitness(scriptPubkey2L))), output2, input2);
-    ReplaceRedeemScript(input2.vin[0].scriptSig, GetScriptForWitness(scriptPubkey1L));
-    CheckWithFlag(output1, input1, 0, true);
-    CheckWithFlag(output1, input1, SCRIPT_VERIFY_P2SH, true);
-    CheckWithFlag(output1, input1, SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, true);
-    CheckWithFlag(output1, input1, STANDARD_SCRIPT_VERIFY_FLAGS, true);
-    CheckWithFlag(output1, input2, 0, true);
-    CheckWithFlag(output1, input2, SCRIPT_VERIFY_P2SH, true);
-    CheckWithFlag(output1, input2, SCRIPT_VERIFY_WITNESS | SCRIPT_VERIFY_P2SH, false);
-    CheckWithFlag(output1, input2, STANDARD_SCRIPT_VERIFY_FLAGS, false);
+    // Signing disabled for P2SH witness pay-to-uncompressed-pubkey (v1).
+    CreateCreditAndSpend(keystore, GetScriptForDestination(CScriptID(GetScriptForWitness(scriptPubkey1L))), output1, input1, false);
+    CreateCreditAndSpend(keystore, GetScriptForDestination(CScriptID(GetScriptForWitness(scriptPubkey2L))), output2, input2, false);
 
     // Normal 2-of-2 multisig
     CreateCreditAndSpend(keystore, scriptMulti, output1, input1, false);
diff --git a/src/txmempool.cpp b/src/txmempool.cpp
index 3586123d3..15fa6fbca 100644
--- a/src/txmempool.cpp
+++ b/src/txmempool.cpp
@@ -444,7 +444,7 @@ bool CTxMemPool::addUnchecked(const uint256& hash, const CTxMemPoolEntry &entry,
     totalTxSize += entry.GetTxSize();
     minerPolicyEstimator->processTransaction(entry, fCurrentEstimate);
 
-    vTxHashes.emplace_back(hash, newit);
+    vTxHashes.emplace_back(tx.GetWitnessHash(), newit);
     newit->vTxHashesIdx = vTxHashes.size() - 1;
 
     return true;
diff --git a/src/txmempool.h b/src/txmempool.h
index 6f67dd91d..941644b2b 100644
--- a/src/txmempool.h
+++ b/src/txmempool.h
@@ -465,7 +465,7 @@ public:
     indexed_transaction_set mapTx;
 
     typedef indexed_transaction_set::nth_index<0>::type::iterator txiter;
-    std::vector<std::pair<uint256, txiter> > vTxHashes; //!< All tx hashes/entries in mapTx, in random order
+    std::vector<std::pair<uint256, txiter> > vTxHashes; //!< All tx witness hashes/entries in mapTx, in random order
 
     struct CompareIteratorByHash {
         bool operator()(const txiter &a, const txiter &b) const {
diff --git a/src/version.h b/src/version.h
index 68ccd6d37..87bd65506 100644
--- a/src/version.h
+++ b/src/version.h
@@ -39,7 +39,7 @@ static const int SENDHEADERS_VERSION = 70012;
 //! "feefilter" tells peers to filter invs to you by fee starts with this version
 static const int FEEFILTER_VERSION = 70013;
 
-//! shord-id-based block download starts with this version
+//! short-id-based block download starts with this version
 static const int SHORT_IDS_BLOCKS_VERSION = 70014;
 
 #endif // BITCOIN_VERSION_H
diff --git a/src/wallet/rpcwallet.cpp b/src/wallet/rpcwallet.cpp
index 3eb7e5d9b..8e95426d1 100644
--- a/src/wallet/rpcwallet.cpp
+++ b/src/wallet/rpcwallet.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2010 Satoshi Nakamoto
-// Copyright (c) 2009-2015 The Bitcoin Core developers
+// Copyright (c) 2009-2016 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -1025,9 +1025,12 @@ public:
 
     bool operator()(const CKeyID &keyID) {
         CPubKey pubkey;
-        if (pwalletMain && pwalletMain->GetPubKey(keyID, pubkey)) {
-            CScript basescript;
-            basescript << ToByteVector(pubkey) << OP_CHECKSIG;
+        if (pwalletMain) {
+            CScript basescript = GetScriptForDestination(keyID);
+            isminetype typ;
+            typ = IsMine(*pwalletMain, basescript, SIGVERSION_WITNESS_V0);
+            if (typ != ISMINE_SPENDABLE && typ != ISMINE_WATCH_SOLVABLE)
+                return false;
             CScript witscript = GetScriptForWitness(basescript);
             pwalletMain->AddCScript(witscript);
             result = CScriptID(witscript);
@@ -1045,6 +1048,10 @@ public:
                 result = scriptID;
                 return true;
             }
+            isminetype typ;
+            typ = IsMine(*pwalletMain, subscript, SIGVERSION_WITNESS_V0);
+            if (typ != ISMINE_SPENDABLE && typ != ISMINE_WATCH_SOLVABLE)
+                return false;
             CScript witscript = GetScriptForWitness(subscript);
             pwalletMain->AddCScript(witscript);
             result = CScriptID(witscript);
@@ -1090,7 +1097,7 @@ UniValue addwitnessaddress(const UniValue& params, bool fHelp)
     CTxDestination dest = address.Get();
     bool ret = boost::apply_visitor(w, dest);
     if (!ret) {
-        throw JSONRPCError(RPC_WALLET_ERROR, "Public key or redeemscript not known to wallet");
+        throw JSONRPCError(RPC_WALLET_ERROR, "Public key or redeemscript not known to wallet, or the key is uncompressed");
     }
 
     pwalletMain->SetAddressBook(w.result, "", "receive");