Merge petertodd#266: Add support for signet network

26c1251 Add support for signet network (0x0ff)

Pull request description:

  This change adds Signet params. Signet can be selected using `SelectParams('signet')`.

Top commit has no ACKs.

Tree-SHA512: eb241ebfa35738546acd16931040bfb2d1564f2ba30d10ceea593f577f6b4a21b31df5068832641242a7503142654887425c9e1f38d49b9e94ecbb233d4c8db9

Author: petertodd

bitcoin/__init__.py

@@ -45,6 +45,12 @@ class TestNetParams(bitcoin.core.CoreTestNetParams):
                        'SECRET_KEY' :239}
     BECH32_HRP = 'tb'
 
+class SigNetParams(bitcoin.core.CoreSigNetParams):
+    MESSAGE_START = b'\x0a\x03\xcf\x40'
+    DEFAULT_PORT = 38333
+    RPC_PORT = 38332
+    DNS_SEEDS = (("signet.bitcoin.sprovoost.nl", "seed.signet.bitcoin.sprovoost.nl"))
+
 class RegTestParams(bitcoin.core.CoreRegTestParams):
     MESSAGE_START = b'\xfa\xbf\xb5\xda'
     DEFAULT_PORT = 18444

bitcoin/core/__init__.py

@@ -710,6 +710,10 @@ class CoreTestNetParams(CoreMainParams):
     NAME = 'testnet'
     GENESIS_BLOCK = CBlock.deserialize(x('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'))
 
+class CoreSigNetParams(CoreMainParams):
+    NAME = 'signet'
+    GENESIS_BLOCK = CBlock.deserialize(x('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'))
+
 class CoreRegTestParams(CoreTestNetParams):
     NAME = 'regtest'
     GENESIS_BLOCK = CBlock.deserialize(x('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'))