From a655bd9861b10b483627aa7deacb79b9c4b781f1 Mon Sep 17 00:00:00 2001
From: Mike Zak <mike@daglabs.com>
Date: Sun, 17 Jun 2018 14:18:23 +0300
Subject: [PATCH 1/9] [DEV-24] changed wire.BlockHeader to have list of
 previous hashes, instead of only 1

---
 wire/blockheader.go | 59 +++++++++++++++++++++++++++++++--------------
 1 file changed, 41 insertions(+), 18 deletions(-)

diff --git a/wire/blockheader.go b/wire/blockheader.go
index 5a636f36c..70183808e 100644
--- a/wire/blockheader.go
+++ b/wire/blockheader.go
@@ -12,19 +12,29 @@ import (
 	"github.com/daglabs/btcd/chaincfg/chainhash"
 )
 
-// MaxBlockHeaderPayload is the maximum number of bytes a block header can be.
+// BaseBlockHeaderPayload is the base number of bytes a block header can be,
+// not including the list of previous block headers.
 // Version 4 bytes + Timestamp 4 bytes + Bits 4 bytes + Nonce 4 bytes +
-// PrevBlock and MerkleRoot hashes.
-const MaxBlockHeaderPayload = 16 + (chainhash.HashSize * 2)
+// + NumPrevBlocks 1 byte + MerkleRoot hash.
+// To get total size of block header len(PrevBlocks) * chainhash.HashSize should be
+// added to this value
+const BaseBlockHeaderPayload = 21 + (chainhash.HashSize)
+
+// MaxBlockHeaderPayload is the maximum number of bytes a block header can be.
+// BaseBlockHeaderPayload + up to 255 hashes of previous blocks
+const MaxBlockHeaderPayload = BaseBlockHeaderPayload + (255 * chainhash.HashSize)
 
 // BlockHeader defines information about a block and is used in the bitcoin
-// block (MsgBlock) and headers (MsgHeaders) messages.
+// block (MsgBlock) and headers (MsgHeader ) messages.
 type BlockHeader struct {
 	// Version of the block.  This is not the same as the protocol version.
 	Version int32
 
-	// Hash of the previous block header in the block chain.
-	PrevBlock chainhash.Hash
+	// Number of entries in PrevBlocks
+	NumPrevBlocks byte
+
+	// Hashes of the previous block headers in the blockDAG.
+	PrevBlocks []chainhash.Hash
 
 	// Merkle tree reference to hash of all transactions for the block.
 	MerkleRoot chainhash.Hash
@@ -50,7 +60,7 @@ func (h *BlockHeader) BlockHash() chainhash.Hash {
 	// transactions.  Ignore the error returns since there is no way the
 	// encode could fail except being out of memory which would cause a
 	// run-time panic.
-	buf := bytes.NewBuffer(make([]byte, 0, MaxBlockHeaderPayload))
+	buf := bytes.NewBuffer(make([]byte, 0, BaseBlockHeaderPayload+len(h.PrevBlocks)))
 	_ = writeBlockHeader(buf, 0, h)
 
 	return chainhash.DoubleHashH(buf.Bytes())
@@ -94,19 +104,20 @@ func (h *BlockHeader) Serialize(w io.Writer) error {
 
 // NewBlockHeader returns a new BlockHeader using the provided version, previous
 // block hash, merkle root hash, difficulty bits, and nonce used to generate the
-// block with defaults for the remaining fields.
-func NewBlockHeader(version int32, prevHash, merkleRootHash *chainhash.Hash,
+// block with defaults or calclulated values for the remaining fields.
+func NewBlockHeader(version int32, prevHashes []chainhash.Hash, merkleRootHash *chainhash.Hash,
 	bits uint32, nonce uint32) *BlockHeader {
 
 	// Limit the timestamp to one second precision since the protocol
 	// doesn't support better.
 	return &BlockHeader{
-		Version:    version,
-		PrevBlock:  *prevHash,
-		MerkleRoot: *merkleRootHash,
-		Timestamp:  time.Unix(time.Now().Unix(), 0),
-		Bits:       bits,
-		Nonce:      nonce,
+		Version:       version,
+		NumPrevBlocks: byte(len(prevHashes)),
+		PrevBlocks:    prevHashes,
+		MerkleRoot:    *merkleRootHash,
+		Timestamp:     time.Unix(time.Now().Unix(), 0),
+		Bits:          bits,
+		Nonce:         nonce,
 	}
 }
 
@@ -114,8 +125,20 @@ func NewBlockHeader(version int32, prevHash, merkleRootHash *chainhash.Hash,
 // decoding block headers stored to disk, such as in a database, as opposed to
 // decoding from the wire.
 func readBlockHeader(r io.Reader, pver uint32, bh *BlockHeader) error {
-	return readElements(r, &bh.Version, &bh.PrevBlock, &bh.MerkleRoot,
-		(*uint32Time)(&bh.Timestamp), &bh.Bits, &bh.Nonce)
+	err := readElements(r, &bh.Version, &bh.NumPrevBlocks)
+	if err != nil {
+		return err
+	}
+
+	bh.NumPrevBlocks, err = binarySerializer.Uint8(r)
+	if err != nil {
+		return err
+	}
+	bh.PrevBlocks = make([]chainhash.Hash, bh.NumPrevBlocks)
+	for i := byte(0); i < bh.NumPrevBlocks; i++ {
+		readElement(r, &bh.PrevBlocks[i])
+	}
+	return readElements(r, &bh.MerkleRoot, (*uint32Time)(&bh.Timestamp), &bh.Bits, &bh.Nonce)
 }
 
 // writeBlockHeader writes a bitcoin block header to w.  See Serialize for
@@ -123,6 +146,6 @@ func readBlockHeader(r io.Reader, pver uint32, bh *BlockHeader) error {
 // opposed to encoding for the wire.
 func writeBlockHeader(w io.Writer, pver uint32, bh *BlockHeader) error {
 	sec := uint32(bh.Timestamp.Unix())
-	return writeElements(w, bh.Version, &bh.PrevBlock, &bh.MerkleRoot,
+	return writeElements(w, bh.Version, bh.NumPrevBlocks, &bh.PrevBlocks, &bh.MerkleRoot,
 		sec, bh.Bits, bh.Nonce)
 }

From e6e9deef2289fe71a985fa7fb5065ca65998b214 Mon Sep 17 00:00:00 2001
From: Mike Zak <mike@daglabs.com>
Date: Sun, 17 Jun 2018 17:29:31 +0300
Subject: [PATCH 2/9] [DEV-14] Made MaxNumPrevBlocks a const

---
 wire/blockheader.go | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/wire/blockheader.go b/wire/blockheader.go
index 70183808e..99199197e 100644
--- a/wire/blockheader.go
+++ b/wire/blockheader.go
@@ -20,9 +20,13 @@ import (
 // added to this value
 const BaseBlockHeaderPayload = 21 + (chainhash.HashSize)
 
+// MaxNumPrevBlocks is the maximum number of previous blocks a block can reference.
+// Currently set to 255 as the maximum number NumPrevBlocks can be due to it being a byte
+const MaxNumPrevBlocks = 255
+
 // MaxBlockHeaderPayload is the maximum number of bytes a block header can be.
-// BaseBlockHeaderPayload + up to 255 hashes of previous blocks
-const MaxBlockHeaderPayload = BaseBlockHeaderPayload + (255 * chainhash.HashSize)
+// BaseBlockHeaderPayload + up to MaxNumPrevBlocks hashes of previous blocks
+const MaxBlockHeaderPayload = BaseBlockHeaderPayload + (MaxNumPrevBlocks * chainhash.HashSize)
 
 // BlockHeader defines information about a block and is used in the bitcoin
 // block (MsgBlock) and headers (MsgHeader ) messages.

From f4fc50f5d9d8f88bd791b9c49af82be05e5af533 Mon Sep 17 00:00:00 2001
From: Mike Zak <mike@daglabs.com>
Date: Sun, 17 Jun 2018 17:29:57 +0300
Subject: [PATCH 3/9] [DEV-14] Fix wire tests to work with new code changes

---
 wire/bench_test.go | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/wire/bench_test.go b/wire/bench_test.go
index 8ec7776d0..5f1651e21 100644
--- a/wire/bench_test.go
+++ b/wire/bench_test.go
@@ -409,7 +409,8 @@ func BenchmarkDecodeGetHeaders(b *testing.B) {
 }
 
 // BenchmarkDecodeHeaders performs a benchmark on how long it takes to
-// decode a headers message with the maximum number of headers.
+// decode a headers message with the maximum number of headers and maximum number of
+// previous hashes per header.
 func BenchmarkDecodeHeaders(b *testing.B) {
 	// Create a message with the maximum number of headers.
 	pver := ProtocolVersion
@@ -419,7 +420,15 @@ func BenchmarkDecodeHeaders(b *testing.B) {
 		if err != nil {
 			b.Fatalf("NewHashFromStr: unexpected error: %v", err)
 		}
-		m.AddBlockHeader(NewBlockHeader(1, hash, hash, 0, uint32(i)))
+		prevBlocks := make([]chainhash.Hash, MaxNumPrevBlocks)
+		for j := byte(0); j < MaxNumPrevBlocks; j++ {
+			hash, err := chainhash.NewHashFromStr(fmt.Sprintf("%x%x", i, j))
+			if err != nil {
+				b.Fatalf("NewHashFromStr: unexpected error: %v", err)
+			}
+			prevBlocks[i] = *hash
+		}
+		m.AddBlockHeader(NewBlockHeader(1, prevBlocks, hash, 0, uint32(i)))
 	}
 
 	// Serialize it so the bytes are available to test the decode below.
@@ -565,7 +574,7 @@ func BenchmarkDecodeMerkleBlock(b *testing.B) {
 	if err != nil {
 		b.Fatalf("NewHashFromStr: unexpected error: %v", err)
 	}
-	m.Header = *NewBlockHeader(1, hash, hash, 0, uint32(10000))
+	m.Header = *NewBlockHeader(1, []chainhash.Hash{*hash}, hash, 0, uint32(10000))
 	for i := 0; i < 105; i++ {
 		hash, err := chainhash.NewHashFromStr(fmt.Sprintf("%x", i))
 		if err != nil {

From 5f53f1e687132e6e19649b5dfcafbc73f0f23965 Mon Sep 17 00:00:00 2001
From: Stas Boutenko <stasb@freshub.com>
Date: Mon, 18 Jun 2018 11:30:12 +0300
Subject: [PATCH 4/9] [DEV-28] Assigned networks to empty prevBlocks.

---
 chaincfg/genesis.go | 56 ++++++++++++++++++++++++---------------------
 1 file changed, 30 insertions(+), 26 deletions(-)

diff --git a/chaincfg/genesis.go b/chaincfg/genesis.go
index 3d768ad18..0f587fecf 100644
--- a/chaincfg/genesis.go
+++ b/chaincfg/genesis.go
@@ -31,7 +31,7 @@ var genesisCoinbaseTx = wire.MsgTx{
 				0x6b, 0x20, 0x6f, 0x66, 0x20, 0x73, 0x65, 0x63, /* |k of sec|*/
 				0x6f, 0x6e, 0x64, 0x20, 0x62, 0x61, 0x69, 0x6c, /* |ond bail| */
 				0x6f, 0x75, 0x74, 0x20, 0x66, 0x6f, 0x72, 0x20, /* |out for |*/
-				0x62, 0x61, 0x6e, 0x6b, 0x73, /* |banks| */
+				0x62, 0x61, 0x6e, 0x6b, 0x73,                   /* |banks| */
 			},
 			Sequence: 0xffffffff,
 		},
@@ -48,7 +48,7 @@ var genesisCoinbaseTx = wire.MsgTx{
 				0x38, 0xc4, 0xf3, 0x55, 0x04, 0xe5, 0x1e, 0xc1, /* |8..U....| */
 				0x12, 0xde, 0x5c, 0x38, 0x4d, 0xf7, 0xba, 0x0b, /* |..\8M...| */
 				0x8d, 0x57, 0x8a, 0x4c, 0x70, 0x2b, 0x6b, 0xf1, /* |.W.Lp+k.| */
-				0x1d, 0x5f, 0xac, /* |._.| */
+				0x1d, 0x5f, 0xac,                               /* |._.| */
 			},
 		},
 	},
@@ -77,12 +77,13 @@ var genesisMerkleRoot = chainhash.Hash([chainhash.HashSize]byte{ // Make go vet
 // public transaction ledger for the main network.
 var genesisBlock = wire.MsgBlock{
 	Header: wire.BlockHeader{
-		Version:    1,
-		PrevBlock:  chainhash.Hash{},         // 0000000000000000000000000000000000000000000000000000000000000000
-		MerkleRoot: genesisMerkleRoot,        // 4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b
-		Timestamp:  time.Unix(0x495fab29, 0), // 2009-01-03 18:15:05 +0000 UTC
-		Bits:       0x1d00ffff,               // 486604799 [00000000ffff0000000000000000000000000000000000000000000000000000]
-		Nonce:      0x7c2bac1d,               // 2083236893
+		Version:       1,
+		NumPrevBlocks: 0,
+		PrevBlocks:    []chainhash.Hash{},       // 0000000000000000000000000000000000000000000000000000000000000000
+		MerkleRoot:    genesisMerkleRoot,        // 4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b
+		Timestamp:     time.Unix(0x495fab29, 0), // 2009-01-03 18:15:05 +0000 UTC
+		Bits:          0x1d00ffff,               // 486604799 [00000000ffff0000000000000000000000000000000000000000000000000000]
+		Nonce:         0x7c2bac1d,               // 2083236893
 	},
 	Transactions: []*wire.MsgTx{&genesisCoinbaseTx},
 }
@@ -105,12 +106,13 @@ var regTestGenesisMerkleRoot = genesisMerkleRoot
 // as the public transaction ledger for the regression test network.
 var regTestGenesisBlock = wire.MsgBlock{
 	Header: wire.BlockHeader{
-		Version:    1,
-		PrevBlock:  chainhash.Hash{},         // 0000000000000000000000000000000000000000000000000000000000000000
-		MerkleRoot: regTestGenesisMerkleRoot, // 4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b
-		Timestamp:  time.Unix(1296688602, 0), // 2011-02-02 23:16:42 +0000 UTC
-		Bits:       0x207fffff,               // 545259519 [7fffff0000000000000000000000000000000000000000000000000000000000]
-		Nonce:      2,
+		Version:       1,
+		NumPrevBlocks: 0,
+		PrevBlocks:    []chainhash.Hash{},       // 0000000000000000000000000000000000000000000000000000000000000000
+		MerkleRoot:    regTestGenesisMerkleRoot, // 4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b
+		Timestamp:     time.Unix(1296688602, 0), // 2011-02-02 23:16:42 +0000 UTC
+		Bits:          0x207fffff,               // 545259519 [7fffff0000000000000000000000000000000000000000000000000000000000]
+		Nonce:         2,
 	},
 	Transactions: []*wire.MsgTx{&genesisCoinbaseTx},
 }
@@ -133,12 +135,13 @@ var testNet3GenesisMerkleRoot = genesisMerkleRoot
 // serves as the public transaction ledger for the test network (version 3).
 var testNet3GenesisBlock = wire.MsgBlock{
 	Header: wire.BlockHeader{
-		Version:    1,
-		PrevBlock:  chainhash.Hash{},          // 0000000000000000000000000000000000000000000000000000000000000000
-		MerkleRoot: testNet3GenesisMerkleRoot, // 4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b
-		Timestamp:  time.Unix(1296688602, 0),  // 2011-02-02 23:16:42 +0000 UTC
-		Bits:       0x1d00ffff,                // 486604799 [00000000ffff0000000000000000000000000000000000000000000000000000]
-		Nonce:      0x18aea41a,                // 414098458
+		Version:       1,
+		NumPrevBlocks: 0,
+		PrevBlocks:    []chainhash.Hash{},        // 0000000000000000000000000000000000000000000000000000000000000000
+		MerkleRoot:    testNet3GenesisMerkleRoot, // 4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b
+		Timestamp:     time.Unix(1296688602, 0),  // 2011-02-02 23:16:42 +0000 UTC
+		Bits:          0x1d00ffff,                // 486604799 [00000000ffff0000000000000000000000000000000000000000000000000000]
+		Nonce:         0x18aea41a,                // 414098458
 	},
 	Transactions: []*wire.MsgTx{&genesisCoinbaseTx},
 }
@@ -161,12 +164,13 @@ var simNetGenesisMerkleRoot = genesisMerkleRoot
 // as the public transaction ledger for the simulation test network.
 var simNetGenesisBlock = wire.MsgBlock{
 	Header: wire.BlockHeader{
-		Version:    1,
-		PrevBlock:  chainhash.Hash{},         // 0000000000000000000000000000000000000000000000000000000000000000
-		MerkleRoot: simNetGenesisMerkleRoot,  // 4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b
-		Timestamp:  time.Unix(1401292357, 0), // 2014-05-28 15:52:37 +0000 UTC
-		Bits:       0x207fffff,               // 545259519 [7fffff0000000000000000000000000000000000000000000000000000000000]
-		Nonce:      2,
+		Version:       1,
+		NumPrevBlocks: 0,
+		PrevBlocks:    []chainhash.Hash{},       // 0000000000000000000000000000000000000000000000000000000000000000
+		MerkleRoot:    simNetGenesisMerkleRoot,  // 4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b
+		Timestamp:     time.Unix(1401292357, 0), // 2014-05-28 15:52:37 +0000 UTC
+		Bits:          0x207fffff,               // 545259519 [7fffff0000000000000000000000000000000000000000000000000000000000]
+		Nonce:         2,
 	},
 	Transactions: []*wire.MsgTx{&genesisCoinbaseTx},
 }

From 0918d2bb129d4a15023878a40e704939c8b7a936 Mon Sep 17 00:00:00 2001
From: Stas Boutenko <stasb@freshub.com>
Date: Tue, 19 Jun 2018 11:59:37 +0300
Subject: [PATCH 5/9] [DEV-28] Fixed the mainnet genesis block.

---
 chaincfg/genesis.go      | 16 +++++-----
 chaincfg/genesis_test.go | 68 +++++++++++++++++++---------------------
 2 files changed, 40 insertions(+), 44 deletions(-)

diff --git a/chaincfg/genesis.go b/chaincfg/genesis.go
index 0f587fecf..fb7462c25 100644
--- a/chaincfg/genesis.go
+++ b/chaincfg/genesis.go
@@ -58,10 +58,10 @@ var genesisCoinbaseTx = wire.MsgTx{
 // genesisHash is the hash of the first block in the block chain for the main
 // network (genesis block).
 var genesisHash = chainhash.Hash([chainhash.HashSize]byte{ // Make go vet happy.
-	0x6f, 0xe2, 0x8c, 0x0a, 0xb6, 0xf1, 0xb3, 0x72,
-	0xc1, 0xa6, 0xa2, 0x46, 0xae, 0x63, 0xf7, 0x4f,
-	0x93, 0x1e, 0x83, 0x65, 0xe1, 0x5a, 0x08, 0x9c,
-	0x68, 0xd6, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x82, 0xdc, 0xbd, 0xe6, 0x88, 0x37, 0x74, 0x5b,
+	0x78, 0x6b, 0x03, 0x1d, 0xa3, 0x48, 0x3c, 0x45,
+	0x3f, 0xc3, 0x2e, 0xd4, 0x53, 0x5b, 0x6f, 0x26,
+	0x26, 0xb0, 0x48, 0x4f, 0x09, 0x00, 0x00, 0x00,
 })
 
 // genesisMerkleRoot is the hash of the first transaction in the genesis block
@@ -79,11 +79,11 @@ var genesisBlock = wire.MsgBlock{
 	Header: wire.BlockHeader{
 		Version:       1,
 		NumPrevBlocks: 0,
-		PrevBlocks:    []chainhash.Hash{},       // 0000000000000000000000000000000000000000000000000000000000000000
+		PrevBlocks:    []chainhash.Hash{},
 		MerkleRoot:    genesisMerkleRoot,        // 4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b
-		Timestamp:     time.Unix(0x495fab29, 0), // 2009-01-03 18:15:05 +0000 UTC
-		Bits:          0x1d00ffff,               // 486604799 [00000000ffff0000000000000000000000000000000000000000000000000000]
-		Nonce:         0x7c2bac1d,               // 2083236893
+		Timestamp:     time.Unix(0x5b28c4c8, 0), // 2018-06-19 08:54:32 +0000 UTC
+		Bits:          0x1e00ffff,               // 503382015 [000000ffff000000000000000000000000000000000000000000000000000000]
+		Nonce:         0xc0192550,               // 2148484547
 	},
 	Transactions: []*wire.MsgTx{&genesisCoinbaseTx},
 }
diff --git a/chaincfg/genesis_test.go b/chaincfg/genesis_test.go
index d04a72f75..4099f7889 100644
--- a/chaincfg/genesis_test.go
+++ b/chaincfg/genesis_test.go
@@ -121,42 +121,38 @@ func TestSimNetGenesisBlock(t *testing.T) {
 // genesisBlockBytes are the wire encoded bytes for the genesis block of the
 // main network as of protocol version 60002.
 var genesisBlockBytes = []byte{
-	0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
+	0x01, 0x00, 0x00, 0x00, 0x00, 0x3b, 0xa3, 0xed, /* |.....;..| */
+	0xfd, 0x7a, 0x7b, 0x12, 0xb2, 0x7a, 0xc7, 0x2c, /* |.z{..z.,| */
+	0x3e, 0x67, 0x76, 0x8f, 0x61, 0x7f, 0xc8, 0x1b, /* |>gv.a...| */
+	0xc3, 0x88, 0x8a, 0x51, 0x32, 0x3a, 0x9f, 0xb8, /* |...Q2:..| */
+	0xaa, 0x4b, 0x1e, 0x5e, 0x4a, 0xc8, 0xc4, 0x28, /* |.K.^J..(| */
+	0x5b, 0xff, 0xff, 0x00, 0x1e, 0x50, 0x25, 0x19, /* |[....P%.| */
+	0xc0, 0x01, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, /* |........| */
 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
-	0x00, 0x00, 0x00, 0x00, 0x3b, 0xa3, 0xed, 0xfd, /* |....;...| */
-	0x7a, 0x7b, 0x12, 0xb2, 0x7a, 0xc7, 0x2c, 0x3e, /* |z{..z.,>| */
-	0x67, 0x76, 0x8f, 0x61, 0x7f, 0xc8, 0x1b, 0xc3, /* |gv.a....| */
-	0x88, 0x8a, 0x51, 0x32, 0x3a, 0x9f, 0xb8, 0xaa, /* |..Q2:...| */
-	0x4b, 0x1e, 0x5e, 0x4a, 0x29, 0xab, 0x5f, 0x49, /* |K.^J)._I| */
-	0xff, 0xff, 0x00, 0x1d, 0x1d, 0xac, 0x2b, 0x7c, /* |......+|| */
-	0x01, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, /* |........| */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, /* |........| */
-	0xff, 0xff, 0x4d, 0x04, 0xff, 0xff, 0x00, 0x1d, /* |..M.....| */
-	0x01, 0x04, 0x45, 0x54, 0x68, 0x65, 0x20, 0x54, /* |..EThe T| */
-	0x69, 0x6d, 0x65, 0x73, 0x20, 0x30, 0x33, 0x2f, /* |imes 03/| */
-	0x4a, 0x61, 0x6e, 0x2f, 0x32, 0x30, 0x30, 0x39, /* |Jan/2009| */
-	0x20, 0x43, 0x68, 0x61, 0x6e, 0x63, 0x65, 0x6c, /* | Chancel| */
-	0x6c, 0x6f, 0x72, 0x20, 0x6f, 0x6e, 0x20, 0x62, /* |lor on b| */
-	0x72, 0x69, 0x6e, 0x6b, 0x20, 0x6f, 0x66, 0x20, /* |rink of | */
-	0x73, 0x65, 0x63, 0x6f, 0x6e, 0x64, 0x20, 0x62, /* |second b| */
-	0x61, 0x69, 0x6c, 0x6f, 0x75, 0x74, 0x20, 0x66, /* |ailout f| */
-	0x6f, 0x72, 0x20, 0x62, 0x61, 0x6e, 0x6b, 0x73, /* |or banks| */
-	0xff, 0xff, 0xff, 0xff, 0x01, 0x00, 0xf2, 0x05, /* |........| */
-	0x2a, 0x01, 0x00, 0x00, 0x00, 0x43, 0x41, 0x04, /* |*....CA.| */
-	0x67, 0x8a, 0xfd, 0xb0, 0xfe, 0x55, 0x48, 0x27, /* |g....UH'| */
-	0x19, 0x67, 0xf1, 0xa6, 0x71, 0x30, 0xb7, 0x10, /* |.g..q0..| */
-	0x5c, 0xd6, 0xa8, 0x28, 0xe0, 0x39, 0x09, 0xa6, /* |\..(.9..| */
-	0x79, 0x62, 0xe0, 0xea, 0x1f, 0x61, 0xde, 0xb6, /* |yb...a..| */
-	0x49, 0xf6, 0xbc, 0x3f, 0x4c, 0xef, 0x38, 0xc4, /* |I..?L.8.| */
-	0xf3, 0x55, 0x04, 0xe5, 0x1e, 0xc1, 0x12, 0xde, /* |.U......| */
-	0x5c, 0x38, 0x4d, 0xf7, 0xba, 0x0b, 0x8d, 0x57, /* |\8M....W| */
-	0x8a, 0x4c, 0x70, 0x2b, 0x6b, 0xf1, 0x1d, 0x5f, /* |.Lp+k.._|*/
-	0xac, 0x00, 0x00, 0x00, 0x00, /* |.....|    */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, /* |........| */
+	0xff, 0xff, 0xff, 0x4d, 0x04, 0xff, 0xff, 0x00, /* |...M....| */
+	0x1d, 0x01, 0x04, 0x45, 0x54, 0x68, 0x65, 0x20, /* |...EThe | */
+	0x54, 0x69, 0x6d, 0x65, 0x73, 0x20, 0x30, 0x33, /* |Times 03| */
+	0x2f, 0x4a, 0x61, 0x6e, 0x2f, 0x32, 0x30, 0x30, /* |/Jan/200| */
+	0x39, 0x20, 0x43, 0x68, 0x61, 0x6e, 0x63, 0x65, /* |9 Chance| */
+	0x6c, 0x6c, 0x6f, 0x72, 0x20, 0x6f, 0x6e, 0x20, /* |llor on | */
+	0x62, 0x72, 0x69, 0x6e, 0x6b, 0x20, 0x6f, 0x66, /* |brink of| */
+	0x20, 0x73, 0x65, 0x63, 0x6f, 0x6e, 0x64, 0x20, /* | second | */
+	0x62, 0x61, 0x69, 0x6c, 0x6f, 0x75, 0x74, 0x20, /* |bailout | */
+	0x66, 0x6f, 0x72, 0x20, 0x62, 0x61, 0x6e, 0x6b, /* |for bank| */
+	0x73, 0xff, 0xff, 0xff, 0xff, 0x01, 0x00, 0xf2, /* |s.......| */
+	0x05, 0x2a, 0x01, 0x00, 0x00, 0x00, 0x43, 0x41, /* |.*....CA| */
+	0x04, 0x67, 0x8a, 0xfd, 0xb0, 0xfe, 0x55, 0x48, /* |.g....UH| */
+	0x27, 0x19, 0x67, 0xf1, 0xa6, 0x71, 0x30, 0xb7, /* |'.g..q0.| */
+	0x10, 0x5c, 0xd6, 0xa8, 0x28, 0xe0, 0x39, 0x09, /* |.\..(.9.| */
+	0xa6, 0x79, 0x62, 0xe0, 0xea, 0x1f, 0x61, 0xde, /* |.yb...a.| */
+	0xb6, 0x49, 0xf6, 0xbc, 0x3f, 0x4c, 0xef, 0x38, /* |.I..?L.8| */
+	0xc4, 0xf3, 0x55, 0x04, 0xe5, 0x1e, 0xc1, 0x12, /* |..U.....| */
+	0xde, 0x5c, 0x38, 0x4d, 0xf7, 0xba, 0x0b, 0x8d, /* |.\8M....| */
+	0x57, 0x8a, 0x4c, 0x70, 0x2b, 0x6b, 0xf1, 0x1d, /* |W.Lp+k..| */
+	0x5f, 0xac, 0x00, 0x00, 0x00, 0x00,             /* |_.....| */
 }
 
 // regTestGenesisBlockBytes are the wire encoded bytes for the genesis block of
@@ -197,7 +193,7 @@ var regTestGenesisBlockBytes = []byte{
 	0xf3, 0x55, 0x04, 0xe5, 0x1e, 0xc1, 0x12, 0xde, /* |.U......| */
 	0x5c, 0x38, 0x4d, 0xf7, 0xba, 0x0b, 0x8d, 0x57, /* |\8M....W| */
 	0x8a, 0x4c, 0x70, 0x2b, 0x6b, 0xf1, 0x1d, 0x5f, /* |.Lp+k.._|*/
-	0xac, 0x00, 0x00, 0x00, 0x00, /* |.....|    */
+	0xac, 0x00, 0x00, 0x00, 0x00,                   /* |.....|    */
 }
 
 // testNet3GenesisBlockBytes are the wire encoded bytes for the genesis block of
@@ -238,7 +234,7 @@ var testNet3GenesisBlockBytes = []byte{
 	0xf3, 0x55, 0x04, 0xe5, 0x1e, 0xc1, 0x12, 0xde, /* |.U......| */
 	0x5c, 0x38, 0x4d, 0xf7, 0xba, 0x0b, 0x8d, 0x57, /* |\8M....W| */
 	0x8a, 0x4c, 0x70, 0x2b, 0x6b, 0xf1, 0x1d, 0x5f, /* |.Lp+k.._|*/
-	0xac, 0x00, 0x00, 0x00, 0x00, /* |.....|    */
+	0xac, 0x00, 0x00, 0x00, 0x00,                   /* |.....|    */
 }
 
 // simNetGenesisBlockBytes are the wire encoded bytes for the genesis block of
@@ -279,5 +275,5 @@ var simNetGenesisBlockBytes = []byte{
 	0xf3, 0x55, 0x04, 0xe5, 0x1e, 0xc1, 0x12, 0xde, /* |.U......| */
 	0x5c, 0x38, 0x4d, 0xf7, 0xba, 0x0b, 0x8d, 0x57, /* |\8M....W| */
 	0x8a, 0x4c, 0x70, 0x2b, 0x6b, 0xf1, 0x1d, 0x5f, /* |.Lp+k.._|*/
-	0xac, 0x00, 0x00, 0x00, 0x00, /* |.....|    */
+	0xac, 0x00, 0x00, 0x00, 0x00,                   /* |.....|    */
 }

From 77ee404fd1e1b8009166d7164bb232d29a0ce3a3 Mon Sep 17 00:00:00 2001
From: Stas Boutenko <stasb@freshub.com>
Date: Tue, 19 Jun 2018 12:03:21 +0300
Subject: [PATCH 6/9] [DEV-28] Fixed the regtest genesis block.

---
 chaincfg/genesis.go      | 14 ++++-----
 chaincfg/genesis_test.go | 62 +++++++++++++++++++---------------------
 2 files changed, 36 insertions(+), 40 deletions(-)

diff --git a/chaincfg/genesis.go b/chaincfg/genesis.go
index fb7462c25..eaed111bc 100644
--- a/chaincfg/genesis.go
+++ b/chaincfg/genesis.go
@@ -91,10 +91,10 @@ var genesisBlock = wire.MsgBlock{
 // regTestGenesisHash is the hash of the first block in the block chain for the
 // regression test network (genesis block).
 var regTestGenesisHash = chainhash.Hash([chainhash.HashSize]byte{ // Make go vet happy.
-	0x06, 0x22, 0x6e, 0x46, 0x11, 0x1a, 0x0b, 0x59,
-	0xca, 0xaf, 0x12, 0x60, 0x43, 0xeb, 0x5b, 0xbf,
-	0x28, 0xc3, 0x4f, 0x3a, 0x5e, 0x33, 0x2a, 0x1f,
-	0xc7, 0xb2, 0xb7, 0x3c, 0xf1, 0x88, 0x91, 0x0f,
+	0x7c, 0x03, 0x27, 0x80, 0x78, 0xfc, 0xe8, 0xed,
+	0xcd, 0xfc, 0x3d, 0xe1, 0x63, 0x45, 0x4c, 0x03,
+	0x0f, 0xef, 0x38, 0x16, 0xec, 0x54, 0x61, 0x6f,
+	0xca, 0xc9, 0x58, 0x12, 0xb4, 0x6a, 0x15, 0x08,
 })
 
 // regTestGenesisMerkleRoot is the hash of the first transaction in the genesis
@@ -108,11 +108,11 @@ var regTestGenesisBlock = wire.MsgBlock{
 	Header: wire.BlockHeader{
 		Version:       1,
 		NumPrevBlocks: 0,
-		PrevBlocks:    []chainhash.Hash{},       // 0000000000000000000000000000000000000000000000000000000000000000
+		PrevBlocks:    []chainhash.Hash{},
 		MerkleRoot:    regTestGenesisMerkleRoot, // 4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b
-		Timestamp:     time.Unix(1296688602, 0), // 2011-02-02 23:16:42 +0000 UTC
+		Timestamp:     time.Unix(0x5b28c636, 0), // 2018-06-19 09:00:38 +0000 UTC
 		Bits:          0x207fffff,               // 545259519 [7fffff0000000000000000000000000000000000000000000000000000000000]
-		Nonce:         2,
+		Nonce:         1,
 	},
 	Transactions: []*wire.MsgTx{&genesisCoinbaseTx},
 }
diff --git a/chaincfg/genesis_test.go b/chaincfg/genesis_test.go
index 4099f7889..e52664174 100644
--- a/chaincfg/genesis_test.go
+++ b/chaincfg/genesis_test.go
@@ -158,42 +158,38 @@ var genesisBlockBytes = []byte{
 // regTestGenesisBlockBytes are the wire encoded bytes for the genesis block of
 // the regression test network as of protocol version 60002.
 var regTestGenesisBlockBytes = []byte{
-	0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
+	0x01, 0x00, 0x00, 0x00, 0x00, 0x3b, 0xa3, 0xed, /* |.....;..| */
+	0xfd, 0x7a, 0x7b, 0x12, 0xb2, 0x7a, 0xc7, 0x2c, /* |.z{..z.,| */
+	0x3e, 0x67, 0x76, 0x8f, 0x61, 0x7f, 0xc8, 0x1b, /* |>gv.a...| */
+	0xc3, 0x88, 0x8a, 0x51, 0x32, 0x3a, 0x9f, 0xb8, /* |...Q2:..| */
+	0xaa, 0x4b, 0x1e, 0x5e, 0x4a, 0x36, 0xc6, 0x28, /* |.K.^J6.(| */
+	0x5b, 0xff, 0xff, 0x7f, 0x20, 0x01, 0x00, 0x00, /* |[... ...| */
+	0x00, 0x01, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, /* |........| */
 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
-	0x00, 0x00, 0x00, 0x00, 0x3b, 0xa3, 0xed, 0xfd, /* |....;...| */
-	0x7a, 0x7b, 0x12, 0xb2, 0x7a, 0xc7, 0x2c, 0x3e, /* |z{..z.,>| */
-	0x67, 0x76, 0x8f, 0x61, 0x7f, 0xc8, 0x1b, 0xc3, /* |gv.a....| */
-	0x88, 0x8a, 0x51, 0x32, 0x3a, 0x9f, 0xb8, 0xaa, /* |..Q2:...| */
-	0x4b, 0x1e, 0x5e, 0x4a, 0xda, 0xe5, 0x49, 0x4d, /* |K.^J)._I| */
-	0xff, 0xff, 0x7f, 0x20, 0x02, 0x00, 0x00, 0x00, /* |......+|| */
-	0x01, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, /* |........| */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, /* |........| */
-	0xff, 0xff, 0x4d, 0x04, 0xff, 0xff, 0x00, 0x1d, /* |..M.....| */
-	0x01, 0x04, 0x45, 0x54, 0x68, 0x65, 0x20, 0x54, /* |..EThe T| */
-	0x69, 0x6d, 0x65, 0x73, 0x20, 0x30, 0x33, 0x2f, /* |imes 03/| */
-	0x4a, 0x61, 0x6e, 0x2f, 0x32, 0x30, 0x30, 0x39, /* |Jan/2009| */
-	0x20, 0x43, 0x68, 0x61, 0x6e, 0x63, 0x65, 0x6c, /* | Chancel| */
-	0x6c, 0x6f, 0x72, 0x20, 0x6f, 0x6e, 0x20, 0x62, /* |lor on b| */
-	0x72, 0x69, 0x6e, 0x6b, 0x20, 0x6f, 0x66, 0x20, /* |rink of | */
-	0x73, 0x65, 0x63, 0x6f, 0x6e, 0x64, 0x20, 0x62, /* |second b| */
-	0x61, 0x69, 0x6c, 0x6f, 0x75, 0x74, 0x20, 0x66, /* |ailout f| */
-	0x6f, 0x72, 0x20, 0x62, 0x61, 0x6e, 0x6b, 0x73, /* |or banks| */
-	0xff, 0xff, 0xff, 0xff, 0x01, 0x00, 0xf2, 0x05, /* |........| */
-	0x2a, 0x01, 0x00, 0x00, 0x00, 0x43, 0x41, 0x04, /* |*....CA.| */
-	0x67, 0x8a, 0xfd, 0xb0, 0xfe, 0x55, 0x48, 0x27, /* |g....UH'| */
-	0x19, 0x67, 0xf1, 0xa6, 0x71, 0x30, 0xb7, 0x10, /* |.g..q0..| */
-	0x5c, 0xd6, 0xa8, 0x28, 0xe0, 0x39, 0x09, 0xa6, /* |\..(.9..| */
-	0x79, 0x62, 0xe0, 0xea, 0x1f, 0x61, 0xde, 0xb6, /* |yb...a..| */
-	0x49, 0xf6, 0xbc, 0x3f, 0x4c, 0xef, 0x38, 0xc4, /* |I..?L.8.| */
-	0xf3, 0x55, 0x04, 0xe5, 0x1e, 0xc1, 0x12, 0xde, /* |.U......| */
-	0x5c, 0x38, 0x4d, 0xf7, 0xba, 0x0b, 0x8d, 0x57, /* |\8M....W| */
-	0x8a, 0x4c, 0x70, 0x2b, 0x6b, 0xf1, 0x1d, 0x5f, /* |.Lp+k.._|*/
-	0xac, 0x00, 0x00, 0x00, 0x00,                   /* |.....|    */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, /* |........| */
+	0xff, 0xff, 0xff, 0x4d, 0x04, 0xff, 0xff, 0x00, /* |...M....| */
+	0x1d, 0x01, 0x04, 0x45, 0x54, 0x68, 0x65, 0x20, /* |...EThe | */
+	0x54, 0x69, 0x6d, 0x65, 0x73, 0x20, 0x30, 0x33, /* |Times 03| */
+	0x2f, 0x4a, 0x61, 0x6e, 0x2f, 0x32, 0x30, 0x30, /* |/Jan/200| */
+	0x39, 0x20, 0x43, 0x68, 0x61, 0x6e, 0x63, 0x65, /* |9 Chance| */
+	0x6c, 0x6c, 0x6f, 0x72, 0x20, 0x6f, 0x6e, 0x20, /* |llor on | */
+	0x62, 0x72, 0x69, 0x6e, 0x6b, 0x20, 0x6f, 0x66, /* |brink of| */
+	0x20, 0x73, 0x65, 0x63, 0x6f, 0x6e, 0x64, 0x20, /* | second | */
+	0x62, 0x61, 0x69, 0x6c, 0x6f, 0x75, 0x74, 0x20, /* |bailout | */
+	0x66, 0x6f, 0x72, 0x20, 0x62, 0x61, 0x6e, 0x6b, /* |for bank| */
+	0x73, 0xff, 0xff, 0xff, 0xff, 0x01, 0x00, 0xf2, /* |s.......| */
+	0x05, 0x2a, 0x01, 0x00, 0x00, 0x00, 0x43, 0x41, /* |.*....CA| */
+	0x04, 0x67, 0x8a, 0xfd, 0xb0, 0xfe, 0x55, 0x48, /* |.g....UH| */
+	0x27, 0x19, 0x67, 0xf1, 0xa6, 0x71, 0x30, 0xb7, /* |'.g..q0.| */
+	0x10, 0x5c, 0xd6, 0xa8, 0x28, 0xe0, 0x39, 0x09, /* |.\..(.9.| */
+	0xa6, 0x79, 0x62, 0xe0, 0xea, 0x1f, 0x61, 0xde, /* |.yb...a.| */
+	0xb6, 0x49, 0xf6, 0xbc, 0x3f, 0x4c, 0xef, 0x38, /* |.I..?L.8| */
+	0xc4, 0xf3, 0x55, 0x04, 0xe5, 0x1e, 0xc1, 0x12, /* |..U.....| */
+	0xde, 0x5c, 0x38, 0x4d, 0xf7, 0xba, 0x0b, 0x8d, /* |.\8M....| */
+	0x57, 0x8a, 0x4c, 0x70, 0x2b, 0x6b, 0xf1, 0x1d, /* |W.Lp+k..| */
+	0x5f, 0xac, 0x00, 0x00, 0x00, 0x00,             /* |_.....| */
 }
 
 // testNet3GenesisBlockBytes are the wire encoded bytes for the genesis block of

From a268612dfb8e0ac3483ab443134f3f3c1abdaea3 Mon Sep 17 00:00:00 2001
From: Stas Boutenko <stasb@freshub.com>
Date: Tue, 19 Jun 2018 12:07:07 +0300
Subject: [PATCH 7/9] [DEV-28] Fixed the testnet genesis block.

---
 chaincfg/genesis.go      | 14 ++++-----
 chaincfg/genesis_test.go | 62 +++++++++++++++++++---------------------
 2 files changed, 36 insertions(+), 40 deletions(-)

diff --git a/chaincfg/genesis.go b/chaincfg/genesis.go
index eaed111bc..a423ab6b3 100644
--- a/chaincfg/genesis.go
+++ b/chaincfg/genesis.go
@@ -120,10 +120,10 @@ var regTestGenesisBlock = wire.MsgBlock{
 // testNet3GenesisHash is the hash of the first block in the block chain for the
 // test network (version 3).
 var testNet3GenesisHash = chainhash.Hash([chainhash.HashSize]byte{ // Make go vet happy.
-	0x43, 0x49, 0x7f, 0xd7, 0xf8, 0x26, 0x95, 0x71,
-	0x08, 0xf4, 0xa3, 0x0f, 0xd9, 0xce, 0xc3, 0xae,
-	0xba, 0x79, 0x97, 0x20, 0x84, 0xe9, 0x0e, 0xad,
-	0x01, 0xea, 0x33, 0x09, 0x00, 0x00, 0x00, 0x00,
+	0x91, 0x1c, 0xe0, 0x47, 0x77, 0xad, 0x5e, 0xc5,
+	0x60, 0x10, 0x21, 0x32, 0x51, 0x1b, 0x39, 0x06,
+	0x24, 0xb3, 0xbf, 0x08, 0x8e, 0x04, 0x8c, 0xd3,
+	0x80, 0xb4, 0x83, 0x83, 0xed, 0x00, 0x00, 0x00,
 })
 
 // testNet3GenesisMerkleRoot is the hash of the first transaction in the genesis
@@ -139,9 +139,9 @@ var testNet3GenesisBlock = wire.MsgBlock{
 		NumPrevBlocks: 0,
 		PrevBlocks:    []chainhash.Hash{},        // 0000000000000000000000000000000000000000000000000000000000000000
 		MerkleRoot:    testNet3GenesisMerkleRoot, // 4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b
-		Timestamp:     time.Unix(1296688602, 0),  // 2011-02-02 23:16:42 +0000 UTC
-		Bits:          0x1d00ffff,                // 486604799 [00000000ffff0000000000000000000000000000000000000000000000000000]
-		Nonce:         0x18aea41a,                // 414098458
+		Timestamp:     time.Unix(0x5b28c706, 0),  // 2018-06-19 09:04:06 +0000 UTC
+		Bits:          0x1e00ffff,                // 503382015 [000000ffff000000000000000000000000000000000000000000000000000000]
+		Nonce:         0x802f1b3b,                // 2150570811
 	},
 	Transactions: []*wire.MsgTx{&genesisCoinbaseTx},
 }
diff --git a/chaincfg/genesis_test.go b/chaincfg/genesis_test.go
index e52664174..4a510ab1c 100644
--- a/chaincfg/genesis_test.go
+++ b/chaincfg/genesis_test.go
@@ -195,42 +195,38 @@ var regTestGenesisBlockBytes = []byte{
 // testNet3GenesisBlockBytes are the wire encoded bytes for the genesis block of
 // the test network (version 3) as of protocol version 60002.
 var testNet3GenesisBlockBytes = []byte{
-	0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
+	0x01, 0x00, 0x00, 0x00, 0x00, 0x3b, 0xa3, 0xed, /* |.....;..| */
+	0xfd, 0x7a, 0x7b, 0x12, 0xb2, 0x7a, 0xc7, 0x2c, /* |.z{..z.,| */
+	0x3e, 0x67, 0x76, 0x8f, 0x61, 0x7f, 0xc8, 0x1b, /* |>gv.a...| */
+	0xc3, 0x88, 0x8a, 0x51, 0x32, 0x3a, 0x9f, 0xb8, /* |...Q2:..| */
+	0xaa, 0x4b, 0x1e, 0x5e, 0x4a, 0x06, 0xc7, 0x28, /* |.K.^J..(| */
+	0x5b, 0xff, 0xff, 0x00, 0x1e, 0x3b, 0x1b, 0x2f, /* |[....;./| */
+	0x80, 0x01, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, /* |........| */
 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
-	0x00, 0x00, 0x00, 0x00, 0x3b, 0xa3, 0xed, 0xfd, /* |....;...| */
-	0x7a, 0x7b, 0x12, 0xb2, 0x7a, 0xc7, 0x2c, 0x3e, /* |z{..z.,>| */
-	0x67, 0x76, 0x8f, 0x61, 0x7f, 0xc8, 0x1b, 0xc3, /* |gv.a....| */
-	0x88, 0x8a, 0x51, 0x32, 0x3a, 0x9f, 0xb8, 0xaa, /* |..Q2:...| */
-	0x4b, 0x1e, 0x5e, 0x4a, 0xda, 0xe5, 0x49, 0x4d, /* |K.^J)._I| */
-	0xff, 0xff, 0x00, 0x1d, 0x1a, 0xa4, 0xae, 0x18, /* |......+|| */
-	0x01, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, /* |........| */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, /* |........| */
-	0xff, 0xff, 0x4d, 0x04, 0xff, 0xff, 0x00, 0x1d, /* |..M.....| */
-	0x01, 0x04, 0x45, 0x54, 0x68, 0x65, 0x20, 0x54, /* |..EThe T| */
-	0x69, 0x6d, 0x65, 0x73, 0x20, 0x30, 0x33, 0x2f, /* |imes 03/| */
-	0x4a, 0x61, 0x6e, 0x2f, 0x32, 0x30, 0x30, 0x39, /* |Jan/2009| */
-	0x20, 0x43, 0x68, 0x61, 0x6e, 0x63, 0x65, 0x6c, /* | Chancel| */
-	0x6c, 0x6f, 0x72, 0x20, 0x6f, 0x6e, 0x20, 0x62, /* |lor on b| */
-	0x72, 0x69, 0x6e, 0x6b, 0x20, 0x6f, 0x66, 0x20, /* |rink of | */
-	0x73, 0x65, 0x63, 0x6f, 0x6e, 0x64, 0x20, 0x62, /* |second b| */
-	0x61, 0x69, 0x6c, 0x6f, 0x75, 0x74, 0x20, 0x66, /* |ailout f| */
-	0x6f, 0x72, 0x20, 0x62, 0x61, 0x6e, 0x6b, 0x73, /* |or banks| */
-	0xff, 0xff, 0xff, 0xff, 0x01, 0x00, 0xf2, 0x05, /* |........| */
-	0x2a, 0x01, 0x00, 0x00, 0x00, 0x43, 0x41, 0x04, /* |*....CA.| */
-	0x67, 0x8a, 0xfd, 0xb0, 0xfe, 0x55, 0x48, 0x27, /* |g....UH'| */
-	0x19, 0x67, 0xf1, 0xa6, 0x71, 0x30, 0xb7, 0x10, /* |.g..q0..| */
-	0x5c, 0xd6, 0xa8, 0x28, 0xe0, 0x39, 0x09, 0xa6, /* |\..(.9..| */
-	0x79, 0x62, 0xe0, 0xea, 0x1f, 0x61, 0xde, 0xb6, /* |yb...a..| */
-	0x49, 0xf6, 0xbc, 0x3f, 0x4c, 0xef, 0x38, 0xc4, /* |I..?L.8.| */
-	0xf3, 0x55, 0x04, 0xe5, 0x1e, 0xc1, 0x12, 0xde, /* |.U......| */
-	0x5c, 0x38, 0x4d, 0xf7, 0xba, 0x0b, 0x8d, 0x57, /* |\8M....W| */
-	0x8a, 0x4c, 0x70, 0x2b, 0x6b, 0xf1, 0x1d, 0x5f, /* |.Lp+k.._|*/
-	0xac, 0x00, 0x00, 0x00, 0x00,                   /* |.....|    */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, /* |........| */
+	0xff, 0xff, 0xff, 0x4d, 0x04, 0xff, 0xff, 0x00, /* |...M....| */
+	0x1d, 0x01, 0x04, 0x45, 0x54, 0x68, 0x65, 0x20, /* |...EThe | */
+	0x54, 0x69, 0x6d, 0x65, 0x73, 0x20, 0x30, 0x33, /* |Times 03| */
+	0x2f, 0x4a, 0x61, 0x6e, 0x2f, 0x32, 0x30, 0x30, /* |/Jan/200| */
+	0x39, 0x20, 0x43, 0x68, 0x61, 0x6e, 0x63, 0x65, /* |9 Chance| */
+	0x6c, 0x6c, 0x6f, 0x72, 0x20, 0x6f, 0x6e, 0x20, /* |llor on | */
+	0x62, 0x72, 0x69, 0x6e, 0x6b, 0x20, 0x6f, 0x66, /* |brink of| */
+	0x20, 0x73, 0x65, 0x63, 0x6f, 0x6e, 0x64, 0x20, /* | second | */
+	0x62, 0x61, 0x69, 0x6c, 0x6f, 0x75, 0x74, 0x20, /* |bailout | */
+	0x66, 0x6f, 0x72, 0x20, 0x62, 0x61, 0x6e, 0x6b, /* |for bank| */
+	0x73, 0xff, 0xff, 0xff, 0xff, 0x01, 0x00, 0xf2, /* |s.......| */
+	0x05, 0x2a, 0x01, 0x00, 0x00, 0x00, 0x43, 0x41, /* |.*....CA| */
+	0x04, 0x67, 0x8a, 0xfd, 0xb0, 0xfe, 0x55, 0x48, /* |.g....UH| */
+	0x27, 0x19, 0x67, 0xf1, 0xa6, 0x71, 0x30, 0xb7, /* |'.g..q0.| */
+	0x10, 0x5c, 0xd6, 0xa8, 0x28, 0xe0, 0x39, 0x09, /* |.\..(.9.| */
+	0xa6, 0x79, 0x62, 0xe0, 0xea, 0x1f, 0x61, 0xde, /* |.yb...a.| */
+	0xb6, 0x49, 0xf6, 0xbc, 0x3f, 0x4c, 0xef, 0x38, /* |.I..?L.8| */
+	0xc4, 0xf3, 0x55, 0x04, 0xe5, 0x1e, 0xc1, 0x12, /* |..U.....| */
+	0xde, 0x5c, 0x38, 0x4d, 0xf7, 0xba, 0x0b, 0x8d, /* |.\8M....| */
+	0x57, 0x8a, 0x4c, 0x70, 0x2b, 0x6b, 0xf1, 0x1d, /* |W.Lp+k..| */
+	0x5f, 0xac, 0x00, 0x00, 0x00, 0x00,             /* |_.....| */
 }
 
 // simNetGenesisBlockBytes are the wire encoded bytes for the genesis block of

From 87084829395ee6ce53e1502bb9eea6322e5f08da Mon Sep 17 00:00:00 2001
From: Stas Boutenko <stasb@freshub.com>
Date: Tue, 19 Jun 2018 12:10:46 +0300
Subject: [PATCH 8/9] [DEV-28] Fixed the simnet genesis block.

---
 chaincfg/genesis.go      | 12 ++++----
 chaincfg/genesis_test.go | 62 +++++++++++++++++++---------------------
 2 files changed, 35 insertions(+), 39 deletions(-)

diff --git a/chaincfg/genesis.go b/chaincfg/genesis.go
index a423ab6b3..45be55d29 100644
--- a/chaincfg/genesis.go
+++ b/chaincfg/genesis.go
@@ -149,10 +149,10 @@ var testNet3GenesisBlock = wire.MsgBlock{
 // simNetGenesisHash is the hash of the first block in the block chain for the
 // simulation test network.
 var simNetGenesisHash = chainhash.Hash([chainhash.HashSize]byte{ // Make go vet happy.
-	0xf6, 0x7a, 0xd7, 0x69, 0x5d, 0x9b, 0x66, 0x2a,
-	0x72, 0xff, 0x3d, 0x8e, 0xdb, 0xbb, 0x2d, 0xe0,
-	0xbf, 0xa6, 0x7b, 0x13, 0x97, 0x4b, 0xb9, 0x91,
-	0x0d, 0x11, 0x6d, 0x5c, 0xbd, 0x86, 0x3e, 0x68,
+	0xc1, 0x5b, 0x71, 0xfe, 0x20, 0x70, 0x0f, 0xd0,
+	0x08, 0x49, 0x88, 0x1b, 0x32, 0xb5, 0xbd, 0x13,
+	0x17, 0xbe, 0x75, 0xe7, 0x29, 0x46, 0xdd, 0x03,
+	0x01, 0x92, 0x90, 0xf1, 0xca, 0x8a, 0x88, 0x11,
 })
 
 // simNetGenesisMerkleRoot is the hash of the first transaction in the genesis
@@ -168,9 +168,9 @@ var simNetGenesisBlock = wire.MsgBlock{
 		NumPrevBlocks: 0,
 		PrevBlocks:    []chainhash.Hash{},       // 0000000000000000000000000000000000000000000000000000000000000000
 		MerkleRoot:    simNetGenesisMerkleRoot,  // 4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b
-		Timestamp:     time.Unix(1401292357, 0), // 2014-05-28 15:52:37 +0000 UTC
+		Timestamp:     time.Unix(0x5b28c7ec, 0), // 2018-06-19 09:07:56 +0000 UTC
 		Bits:          0x207fffff,               // 545259519 [7fffff0000000000000000000000000000000000000000000000000000000000]
-		Nonce:         2,
+		Nonce:         0x9ffffffb,               // 2684354555
 	},
 	Transactions: []*wire.MsgTx{&genesisCoinbaseTx},
 }
diff --git a/chaincfg/genesis_test.go b/chaincfg/genesis_test.go
index 4a510ab1c..c336c1bcb 100644
--- a/chaincfg/genesis_test.go
+++ b/chaincfg/genesis_test.go
@@ -232,40 +232,36 @@ var testNet3GenesisBlockBytes = []byte{
 // simNetGenesisBlockBytes are the wire encoded bytes for the genesis block of
 // the simulation test network as of protocol version 70002.
 var simNetGenesisBlockBytes = []byte{
-	0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
+	0x01, 0x00, 0x00, 0x00, 0x00, 0x3b, 0xa3, 0xed, /* |.....;..| */
+	0xfd, 0x7a, 0x7b, 0x12, 0xb2, 0x7a, 0xc7, 0x2c, /* |.z{..z.,| */
+	0x3e, 0x67, 0x76, 0x8f, 0x61, 0x7f, 0xc8, 0x1b, /* |>gv.a...| */
+	0xc3, 0x88, 0x8a, 0x51, 0x32, 0x3a, 0x9f, 0xb8, /* |...Q2:..| */
+	0xaa, 0x4b, 0x1e, 0x5e, 0x4a, 0xec, 0xc7, 0x28, /* |.K.^J..(| */
+	0x5b, 0xff, 0xff, 0x7f, 0x20, 0xfb, 0xff, 0xff, /* |[... ...| */
+	0x9f, 0x01, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, /* |........| */
 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
-	0x00, 0x00, 0x00, 0x00, 0x3b, 0xa3, 0xed, 0xfd, /* |....;...| */
-	0x7a, 0x7b, 0x12, 0xb2, 0x7a, 0xc7, 0x2c, 0x3e, /* |z{..z.,>| */
-	0x67, 0x76, 0x8f, 0x61, 0x7f, 0xc8, 0x1b, 0xc3, /* |gv.a....| */
-	0x88, 0x8a, 0x51, 0x32, 0x3a, 0x9f, 0xb8, 0xaa, /* |..Q2:...| */
-	0x4b, 0x1e, 0x5e, 0x4a, 0x45, 0x06, 0x86, 0x53, /* |K.^J)._I| */
-	0xff, 0xff, 0x7f, 0x20, 0x02, 0x00, 0x00, 0x00, /* |......+|| */
-	0x01, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, /* |........| */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* |........| */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, /* |........| */
-	0xff, 0xff, 0x4d, 0x04, 0xff, 0xff, 0x00, 0x1d, /* |..M.....| */
-	0x01, 0x04, 0x45, 0x54, 0x68, 0x65, 0x20, 0x54, /* |..EThe T| */
-	0x69, 0x6d, 0x65, 0x73, 0x20, 0x30, 0x33, 0x2f, /* |imes 03/| */
-	0x4a, 0x61, 0x6e, 0x2f, 0x32, 0x30, 0x30, 0x39, /* |Jan/2009| */
-	0x20, 0x43, 0x68, 0x61, 0x6e, 0x63, 0x65, 0x6c, /* | Chancel| */
-	0x6c, 0x6f, 0x72, 0x20, 0x6f, 0x6e, 0x20, 0x62, /* |lor on b| */
-	0x72, 0x69, 0x6e, 0x6b, 0x20, 0x6f, 0x66, 0x20, /* |rink of | */
-	0x73, 0x65, 0x63, 0x6f, 0x6e, 0x64, 0x20, 0x62, /* |second b| */
-	0x61, 0x69, 0x6c, 0x6f, 0x75, 0x74, 0x20, 0x66, /* |ailout f| */
-	0x6f, 0x72, 0x20, 0x62, 0x61, 0x6e, 0x6b, 0x73, /* |or banks| */
-	0xff, 0xff, 0xff, 0xff, 0x01, 0x00, 0xf2, 0x05, /* |........| */
-	0x2a, 0x01, 0x00, 0x00, 0x00, 0x43, 0x41, 0x04, /* |*....CA.| */
-	0x67, 0x8a, 0xfd, 0xb0, 0xfe, 0x55, 0x48, 0x27, /* |g....UH'| */
-	0x19, 0x67, 0xf1, 0xa6, 0x71, 0x30, 0xb7, 0x10, /* |.g..q0..| */
-	0x5c, 0xd6, 0xa8, 0x28, 0xe0, 0x39, 0x09, 0xa6, /* |\..(.9..| */
-	0x79, 0x62, 0xe0, 0xea, 0x1f, 0x61, 0xde, 0xb6, /* |yb...a..| */
-	0x49, 0xf6, 0xbc, 0x3f, 0x4c, 0xef, 0x38, 0xc4, /* |I..?L.8.| */
-	0xf3, 0x55, 0x04, 0xe5, 0x1e, 0xc1, 0x12, 0xde, /* |.U......| */
-	0x5c, 0x38, 0x4d, 0xf7, 0xba, 0x0b, 0x8d, 0x57, /* |\8M....W| */
-	0x8a, 0x4c, 0x70, 0x2b, 0x6b, 0xf1, 0x1d, 0x5f, /* |.Lp+k.._|*/
-	0xac, 0x00, 0x00, 0x00, 0x00,                   /* |.....|    */
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, /* |........| */
+	0xff, 0xff, 0xff, 0x4d, 0x04, 0xff, 0xff, 0x00, /* |...M....| */
+	0x1d, 0x01, 0x04, 0x45, 0x54, 0x68, 0x65, 0x20, /* |...EThe | */
+	0x54, 0x69, 0x6d, 0x65, 0x73, 0x20, 0x30, 0x33, /* |Times 03| */
+	0x2f, 0x4a, 0x61, 0x6e, 0x2f, 0x32, 0x30, 0x30, /* |/Jan/200| */
+	0x39, 0x20, 0x43, 0x68, 0x61, 0x6e, 0x63, 0x65, /* |9 Chance| */
+	0x6c, 0x6c, 0x6f, 0x72, 0x20, 0x6f, 0x6e, 0x20, /* |llor on | */
+	0x62, 0x72, 0x69, 0x6e, 0x6b, 0x20, 0x6f, 0x66, /* |brink of| */
+	0x20, 0x73, 0x65, 0x63, 0x6f, 0x6e, 0x64, 0x20, /* | second | */
+	0x62, 0x61, 0x69, 0x6c, 0x6f, 0x75, 0x74, 0x20, /* |bailout | */
+	0x66, 0x6f, 0x72, 0x20, 0x62, 0x61, 0x6e, 0x6b, /* |for bank| */
+	0x73, 0xff, 0xff, 0xff, 0xff, 0x01, 0x00, 0xf2, /* |s.......| */
+	0x05, 0x2a, 0x01, 0x00, 0x00, 0x00, 0x43, 0x41, /* |.*....CA| */
+	0x04, 0x67, 0x8a, 0xfd, 0xb0, 0xfe, 0x55, 0x48, /* |.g....UH| */
+	0x27, 0x19, 0x67, 0xf1, 0xa6, 0x71, 0x30, 0xb7, /* |'.g..q0.| */
+	0x10, 0x5c, 0xd6, 0xa8, 0x28, 0xe0, 0x39, 0x09, /* |.\..(.9.| */
+	0xa6, 0x79, 0x62, 0xe0, 0xea, 0x1f, 0x61, 0xde, /* |.yb...a.| */
+	0xb6, 0x49, 0xf6, 0xbc, 0x3f, 0x4c, 0xef, 0x38, /* |.I..?L.8| */
+	0xc4, 0xf3, 0x55, 0x04, 0xe5, 0x1e, 0xc1, 0x12, /* |..U.....| */
+	0xde, 0x5c, 0x38, 0x4d, 0xf7, 0xba, 0x0b, 0x8d, /* |.\8M....| */
+	0x57, 0x8a, 0x4c, 0x70, 0x2b, 0x6b, 0xf1, 0x1d, /* |W.Lp+k..| */
+	0x5f, 0xac, 0x00, 0x00, 0x00, 0x00,             /* |_.....| */
 }

From 4457a49f549be1f33253f031f3473bab40218835 Mon Sep 17 00:00:00 2001
From: Stas Boutenko <stasb@freshub.com>
Date: Tue, 19 Jun 2018 12:46:42 +0300
Subject: [PATCH 9/9] [DEV-28] Forgot to remove a couple of not-relevant
 comments.

---
 chaincfg/genesis.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/chaincfg/genesis.go b/chaincfg/genesis.go
index 45be55d29..e2160fda4 100644
--- a/chaincfg/genesis.go
+++ b/chaincfg/genesis.go
@@ -137,7 +137,7 @@ var testNet3GenesisBlock = wire.MsgBlock{
 	Header: wire.BlockHeader{
 		Version:       1,
 		NumPrevBlocks: 0,
-		PrevBlocks:    []chainhash.Hash{},        // 0000000000000000000000000000000000000000000000000000000000000000
+		PrevBlocks:    []chainhash.Hash{},
 		MerkleRoot:    testNet3GenesisMerkleRoot, // 4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b
 		Timestamp:     time.Unix(0x5b28c706, 0),  // 2018-06-19 09:04:06 +0000 UTC
 		Bits:          0x1e00ffff,                // 503382015 [000000ffff000000000000000000000000000000000000000000000000000000]
@@ -166,7 +166,7 @@ var simNetGenesisBlock = wire.MsgBlock{
 	Header: wire.BlockHeader{
 		Version:       1,
 		NumPrevBlocks: 0,
-		PrevBlocks:    []chainhash.Hash{},       // 0000000000000000000000000000000000000000000000000000000000000000
+		PrevBlocks:    []chainhash.Hash{},
 		MerkleRoot:    simNetGenesisMerkleRoot,  // 4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b
 		Timestamp:     time.Unix(0x5b28c7ec, 0), // 2018-06-19 09:07:56 +0000 UTC
 		Bits:          0x207fffff,               // 545259519 [7fffff0000000000000000000000000000000000000000000000000000000000]