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electrumx/lib/coins.py

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# Copyright (c) 2016-2017, Neil Booth
# Copyright (c) 2017, the ElectrumX authors
#
# All rights reserved.
#
# The MIT License (MIT)
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
'''Module providing coin abstraction.
Anything coin-specific should go in this file and be subclassed where
necessary for appropriate handling.
'''
from collections import namedtuple
import re
import struct
from decimal import Decimal
from hashlib import sha256
import lib.util as util
from lib.hash import Base58, hash160, double_sha256, hash_to_str
from lib.script import ScriptPubKey
from lib.tx import Deserializer, DeserializerSegWit, DeserializerAuxPow, DeserializerZcash
from server.block_processor import BlockProcessor
from server.daemon import Daemon
from server.session import ElectrumX
Block = namedtuple("Block", "header transactions")
class CoinError(Exception):
'''Exception raised for coin-related errors.'''
class Coin(object):
'''Base class of coin hierarchy.'''
REORG_LIMIT = 200
# Not sure if these are coin-specific
RPC_URL_REGEX = re.compile('.+@(\[[0-9a-fA-F:]+\]|[^:]+)(:[0-9]+)?')
VALUE_PER_COIN = 100000000
CHUNK_SIZE = 2016
HASHX_LEN = 11
BASIC_HEADER_SIZE = 80
STATIC_BLOCK_HEADERS = True
SESSIONCLS = ElectrumX
DESERIALIZER = Deserializer
DAEMON = Daemon
BLOCK_PROCESSOR = BlockProcessor
IRC_PREFIX = None
IRC_SERVER = "irc.freenode.net"
IRC_PORT = 6667
# Peer discovery
PEER_DEFAULT_PORTS = {'t': '50001', 's': '50002'}
PEERS = []
@classmethod
def lookup_coin_class(cls, name, net):
'''Return a coin class given name and network.
Raise an exception if unrecognised.'''
req_attrs = ['TX_COUNT', 'TX_COUNT_HEIGHT', 'TX_PER_BLOCK']
for coin in util.subclasses(Coin):
if (coin.NAME.lower() == name.lower() and
coin.NET.lower() == net.lower()):
coin_req_attrs = req_attrs.copy()
if coin.IRC_PREFIX is not None:
coin_req_attrs.append('IRC_CHANNEL')
missing = [attr for attr in coin_req_attrs
if not hasattr(coin, attr)]
if missing:
raise CoinError('coin {} missing {} attributes'
.format(name, missing))
return coin
raise CoinError('unknown coin {} and network {} combination'
.format(name, net))
@classmethod
def sanitize_url(cls, url):
# Remove surrounding ws and trailing /s
url = url.strip().rstrip('/')
match = cls.RPC_URL_REGEX.match(url)
if not match:
raise CoinError('invalid daemon URL: "{}"'.format(url))
if match.groups()[1] is None:
url += ':{:d}'.format(cls.RPC_PORT)
if not url.startswith('http://'):
url = 'http://' + url
return url + '/'
@classmethod
def daemon_urls(cls, urls):
return [cls.sanitize_url(url) for url in urls.split(',')]
@classmethod
def genesis_block(cls, block):
'''Check the Genesis block is the right one for this coin.
Return the block less its unspendable coinbase.
'''
header = cls.block_header(block, 0)
header_hex_hash = hash_to_str(cls.header_hash(header))
if header_hex_hash != cls.GENESIS_HASH:
raise CoinError('genesis block has hash {} expected {}'
.format(header_hex_hash, cls.GENESIS_HASH))
return header + bytes(1)
@classmethod
def hashX_from_script(cls, script):
'''Returns a hashX from a script.'''
script = ScriptPubKey.hashX_script(script)
if script is None:
return None
return sha256(script).digest()[:cls.HASHX_LEN]
@util.cachedproperty
def address_handlers(cls):
return ScriptPubKey.PayToHandlers(
address=cls.P2PKH_address_from_hash160,
script_hash=cls.P2SH_address_from_hash160,
pubkey=cls.P2PKH_address_from_pubkey,
unspendable=lambda: None,
strange=lambda script: None,
)
@classmethod
def address_from_script(cls, script):
'''Given a pk_script, return the adddress it pays to, or None.'''
return ScriptPubKey.pay_to(cls.address_handlers, script)
@staticmethod
def lookup_xverbytes(verbytes):
'''Return a (is_xpub, coin_class) pair given xpub/xprv verbytes.'''
# Order means BTC testnet will override NMC testnet
for coin in Coin.coin_classes():
if verbytes == coin.XPUB_VERBYTES:
return True, coin
if verbytes == coin.XPRV_VERBYTES:
return False, coin
raise CoinError('version bytes unrecognised')
@classmethod
def address_to_hashX(cls, address):
'''Return a hashX given a coin address.'''
return cls.hashX_from_script(cls.pay_to_address_script(address))
@classmethod
def P2PKH_address_from_hash160(cls, hash160):
'''Return a P2PKH address given a public key.'''
assert len(hash160) == 20
return Base58.encode_check(cls.P2PKH_VERBYTE + hash160)
@classmethod
def P2PKH_address_from_pubkey(cls, pubkey):
'''Return a coin address given a public key.'''
return cls.P2PKH_address_from_hash160(hash160(pubkey))
@classmethod
def P2SH_address_from_hash160(cls, hash160):
'''Return a coin address given a hash160.'''
assert len(hash160) == 20
return Base58.encode_check(cls.P2SH_VERBYTES[0] + hash160)
@classmethod
def multisig_address(cls, m, pubkeys):
'''Return the P2SH address for an M of N multisig transaction.
Pass the N pubkeys of which M are needed to sign it. If
generating an address for a wallet, it is the caller's
responsibility to sort them to ensure order does not matter
for, e.g., wallet recovery.
'''
script = cls.pay_to_multisig_script(m, pubkeys)
return cls.P2SH_address_from_hash160(hash160(script))
@classmethod
def pay_to_multisig_script(cls, m, pubkeys):
'''Return a P2SH script for an M of N multisig transaction.'''
return ScriptPubKey.multisig_script(m, pubkeys)
@classmethod
def pay_to_pubkey_script(cls, pubkey):
'''Return a pubkey script that pays to a pubkey.
Pass the raw pubkey bytes (length 33 or 65).
'''
return ScriptPubKey.P2PK_script(pubkey)
@classmethod
def pay_to_address_script(cls, address):
'''Return a pubkey script that pays to a pubkey hash.
Pass the address (either P2PKH or P2SH) in base58 form.
'''
raw = Base58.decode_check(address)
# Require version byte(s) plus hash160.
verbyte = -1
verlen = len(raw) - 20
if verlen > 0:
verbyte, hash_bytes = raw[:verlen], raw[verlen:]
if verbyte == cls.P2PKH_VERBYTE:
return ScriptPubKey.P2PKH_script(hash_bytes)
if verbyte in cls.P2SH_VERBYTES:
return ScriptPubKey.P2SH_script(hash_bytes)
raise CoinError('invalid address: {}'.format(address))
@classmethod
def prvkey_WIF(cls, privkey_bytes, compressed):
'''Return the private key encoded in Wallet Import Format.'''
payload = bytearray(cls.WIF_BYTE) + privkey_bytes
if compressed:
payload.append(0x01)
return Base58.encode_check(payload)
@classmethod
def header_hash(cls, header):
'''Given a header return hash'''
return double_sha256(header)
@classmethod
def header_prevhash(cls, header):
'''Given a header return previous hash'''
return header[4:36]
@classmethod
def static_header_offset(cls, height):
'''Given a header height return its offset in the headers file.
If header sizes change at some point, this is the only code
that needs updating.'''
assert cls.STATIC_BLOCK_HEADERS
return height * cls.BASIC_HEADER_SIZE
@classmethod
def static_header_len(cls, height):
'''Given a header height return its length.'''
return cls.static_header_offset(height + 1) \
- cls.static_header_offset(height)
@classmethod
def block_header(cls, block, height):
'''Returns the block header given a block and its height.'''
return block[:cls.static_header_len(height)]
@classmethod
def block_full(cls, block, height):
'''Returns (header, [(deserialized_tx, tx_hash), ...]) given a
block and its height.'''
header = cls.block_header(block, height)
txs = cls.DESERIALIZER(block[len(header):]).read_tx_block()
return Block(header, txs)
@classmethod
def decimal_value(cls, value):
'''Return the number of standard coin units as a Decimal given a
quantity of smallest units.
For example 1 BTC is returned for 100 million satoshis.
'''
return Decimal(value) / cls.VALUE_PER_COIN
@classmethod
def electrum_header(cls, header, height):
version, = struct.unpack('<I', header[:4])
timestamp, bits, nonce = struct.unpack('<III', header[68:80])
return {
'block_height': height,
'version': version,
'prev_block_hash': hash_to_str(header[4:36]),
'merkle_root': hash_to_str(header[36:68]),
'timestamp': timestamp,
'bits': bits,
'nonce': nonce,
}
class CoinAuxPow(Coin):
# Set NAME and NET to avoid exception in Coin::lookup_coin_class
NAME = ''
NET = ''
STATIC_BLOCK_HEADERS = False
DESERIALIZER = DeserializerAuxPow
@classmethod
def header_hash(cls, header):
'''Given a header return hash'''
return double_sha256(header[:cls.BASIC_HEADER_SIZE])
@classmethod
def block_header(cls, block, height):
'''Return the AuxPow block header bytes'''
block = cls.DESERIALIZER(block)
return block.read_header(height, cls.BASIC_HEADER_SIZE)
class Bitcoin(Coin):
NAME = "Bitcoin"
SHORTNAME = "BTC"
NET = "mainnet"
XPUB_VERBYTES = bytes.fromhex("0488b21e")
XPRV_VERBYTES = bytes.fromhex("0488ade4")
P2PKH_VERBYTE = bytes.fromhex("00")
P2SH_VERBYTES = [bytes.fromhex("05")]
WIF_BYTE = bytes.fromhex("80")
GENESIS_HASH = ('000000000019d6689c085ae165831e93'
'4ff763ae46a2a6c172b3f1b60a8ce26f')
TX_COUNT = 217380620
TX_COUNT_HEIGHT = 464000
TX_PER_BLOCK = 1800
RPC_PORT = 8332
PEERS = [
'btc.smsys.me s995',
'electrum.be s t',
'ELECTRUM.not.fyi p1000 s t',
'electrum.vom-stausee.de s t',
'electrum3.hachre.de p10000 s t',
'electrum.hsmiths.com s t',
'erbium1.sytes.net s t',
'fdkbwjykvl2f3hup.onion p10000 s t',
'h.1209k.com p10000 s t',
'helicarrier.bauerj.eu s t',
'hsmiths4fyqlw5xw.onion s t',
'ozahtqwp25chjdjd.onion s t',
'us11.einfachmalnettsein.de s t',
'ELEX01.blackpole.online s t',
]
class BitcoinTestnet(Bitcoin):
SHORTNAME = "XTN"
NET = "testnet"
XPUB_VERBYTES = bytes.fromhex("043587cf")
XPRV_VERBYTES = bytes.fromhex("04358394")
P2PKH_VERBYTE = bytes.fromhex("6f")
P2SH_VERBYTES = [bytes.fromhex("c4")]
WIF_BYTE = bytes.fromhex("ef")
GENESIS_HASH = ('000000000933ea01ad0ee984209779ba'
'aec3ced90fa3f408719526f8d77f4943')
REORG_LIMIT = 8000
TX_COUNT = 12242438
TX_COUNT_HEIGHT = 1035428
TX_PER_BLOCK = 21
RPC_PORT = 18332
PEER_DEFAULT_PORTS = {'t': '51001', 's': '51002'}
PEERS = [
'electrum.akinbo.org s t',
'he36kyperp3kbuxu.onion s t',
'electrum-btc-testnet.petrkr.net s t',
'testnet.hsmiths.com t53011',
'hsmithsxurybd7uh.onion t53011 s53012',
'ELEX05.blackpole.online t52001 s52002',
]
class BitcoinTestnetSegWit(BitcoinTestnet):
'''Bitcoin Testnet for Core bitcoind >= 0.13.1.
Unfortunately 0.13.1 broke backwards compatibility of the RPC
interface's TX serialization, SegWit transactions serialize
differently than with earlier versions. If you are using such a
bitcoind on testnet, you must use this class as your "COIN".
'''
NET = "testnet-segwit"
DESERIALIZER = DeserializerSegWit
class BitcoinNolnet(Bitcoin):
'''Bitcoin Unlimited nolimit testnet.'''
NET = "nolnet"
GENESIS_HASH = ('00000000e752e935119102b142b5c27a'
'346a023532a42edcf7c8ffd0a22206e9')
REORG_LIMIT = 8000
TX_COUNT = 195106
TX_COUNT_HEIGHT = 24920
TX_PER_BLOCK = 8
IRC_PREFIX = "EN_"
RPC_PORT = 28332
PEER_DEFAULT_PORTS = {'t': '52001', 's': '52002'}
PEERS = [
'14.3.140.101 s t',
]
class Litecoin(Coin):
NAME = "Litecoin"
SHORTNAME = "LTC"
NET = "mainnet"
XPUB_VERBYTES = bytes.fromhex("0488b21e")
XPRV_VERBYTES = bytes.fromhex("0488ade4")
P2PKH_VERBYTE = bytes.fromhex("30")
P2SH_VERBYTES = [bytes.fromhex("32"), bytes.fromhex("05")]
WIF_BYTE = bytes.fromhex("b0")
GENESIS_HASH = ('12a765e31ffd4059bada1e25190f6e98'
'c99d9714d334efa41a195a7e7e04bfe2')
DESERIALIZER = DeserializerSegWit
TX_COUNT = 8908766
TX_COUNT_HEIGHT = 1105256
TX_PER_BLOCK = 10
RPC_PORT = 9332
REORG_LIMIT = 800
PEERS = [
'elec.luggs.co s444',
'electrum-ltc.bysh.me s t',
'electrum-ltc.ddns.net s t',
'electrum.cryptomachine.com p1000 s t',
'electrum.ltc.xurious.com s t',
'eywr5eubdbbe2laq.onion s50008 t50007',
]
class LitecoinTestnet(Litecoin):
SHORTNAME = "XLT"
NET = "testnet"
XPUB_VERBYTES = bytes.fromhex("043587cf")
XPRV_VERBYTES = bytes.fromhex("04358394")
P2PKH_VERBYTE = bytes.fromhex("6f")
P2SH_VERBYTES = [bytes.fromhex("3a"), bytes.fromhex("c4")]
WIF_BYTE = bytes.fromhex("ef")
GENESIS_HASH = ('4966625a4b2851d9fdee139e56211a0d'
'88575f59ed816ff5e6a63deb4e3e29a0')
TX_COUNT = 21772
TX_COUNT_HEIGHT = 20800
TX_PER_BLOCK = 2
RPC_PORT = 19332
REORG_LIMIT = 4000
PEER_DEFAULT_PORTS = {'t': '51001', 's': '51002'}
PEERS = [
'electrum-ltc.bysh.me s t',
'electrum.ltc.xurious.com s t',
]
class Viacoin(CoinAuxPow):
NAME="Viacoin"
SHORTNAME = "VIA"
NET = "mainnet"
XPUB_VERBYTES = bytes.fromhex("0488B21E")
XPRV_VERBYTES = bytes.fromhex("0488ADE4")
P2PKH_VERBYTE = bytes.fromhex("47")
P2SH_VERBYTES = [bytes.fromhex("21")]
WIF_BYTE = bytes.fromhex("c7")
GENESIS_HASH = ('4e9b54001f9976049830128ec0331515'
'eaabe35a70970d79971da1539a400ba1')
TX_COUNT = 113638
TX_COUNT_HEIGHT = 3473674
TX_PER_BLOCK = 30
IRC_PREFIX = "E_"
IRC_CHANNEL="#vialectrum"
RPC_PORT = 5222
REORG_LIMIT = 5000
PEERS = [
'vialectrum.bitops.me s t',
'server.vialectrum.org s t',
'vialectrum.viacoin.net s t',
'viax1.bitops.me s t',
]
class ViacoinTestnet(Viacoin):
SHORTNAME = "TVI"
NET = "testnet"
XPUB_VERBYTES = bytes.fromhex("043587CF")
XPRV_VERBYTES = bytes.fromhex("04358394")
P2PKH_VERBYTE = bytes.fromhex("7f")
P2SH_VERBYTES = [bytes.fromhex("c4")]
WIF_BYTE = bytes.fromhex("ff")
GENESIS_HASH = ('00000007199508e34a9ff81e6ec0c477'
'a4cccff2a4767a8eee39c11db367b008')
RPC_PORT = 25222
REORG_LIMIT = 2500
PEER_DEFAULT_PORTS = {'t': '51001', 's': '51002'}
PEERS = [
'vialectrum.bysh.me s t',
]
class ViacoinTestnetSegWit(ViacoinTestnet):
NET = "testnet-segwit"
DESERIALIZER = DeserializerSegWit
# Source: namecoin.org
class Namecoin(CoinAuxPow):
NAME = "Namecoin"
SHORTNAME = "NMC"
NET = "mainnet"
XPUB_VERBYTES = bytes.fromhex("d7dd6370")
XPRV_VERBYTES = bytes.fromhex("d7dc6e31")
P2PKH_VERBYTE = bytes.fromhex("34")
P2SH_VERBYTES = [bytes.fromhex("0d")]
WIF_BYTE = bytes.fromhex("e4")
GENESIS_HASH = ('000000000062b72c5e2ceb45fbc8587e'
'807c155b0da735e6483dfba2f0a9c770')
TX_COUNT = 4415768
TX_COUNT_HEIGHT = 329065
TX_PER_BLOCK = 10
IRC_PREFIX = "E_"
IRC_CHANNEL = "#electrum-nmc"
class NamecoinTestnet(Namecoin):
NAME = "Namecoin"
SHORTNAME = "XNM"
NET = "testnet"
XPUB_VERBYTES = bytes.fromhex("043587cf")
XPRV_VERBYTES = bytes.fromhex("04358394")
P2PKH_VERBYTE = bytes.fromhex("6f")
P2SH_VERBYTES = [bytes.fromhex("c4")]
WIF_BYTE = bytes.fromhex("ef")
GENESIS_HASH = ('00000007199508e34a9ff81e6ec0c477'
'a4cccff2a4767a8eee39c11db367b008')
class Dogecoin(CoinAuxPow):
NAME = "Dogecoin"
SHORTNAME = "DOGE"
NET = "mainnet"
XPUB_VERBYTES = bytes.fromhex("02facafd")
XPRV_VERBYTES = bytes.fromhex("02fac398")
P2PKH_VERBYTE = bytes.fromhex("1e")
P2SH_VERBYTES = [bytes.fromhex("16")]
WIF_BYTE = bytes.fromhex("9e")
GENESIS_HASH = ('1a91e3dace36e2be3bf030a65679fe82'
'1aa1d6ef92e7c9902eb318182c355691')
TX_COUNT = 27583427
TX_COUNT_HEIGHT = 1604979
TX_PER_BLOCK = 20
IRC_PREFIX = "E_"
IRC_CHANNEL = "#electrum-doge"
REORG_LIMIT = 2000
class DogecoinTestnet(Dogecoin):
NAME = "Dogecoin"
SHORTNAME = "XDT"
NET = "testnet"
XPUB_VERBYTES = bytes.fromhex("043587cf")
XPRV_VERBYTES = bytes.fromhex("04358394")
P2PKH_VERBYTE = bytes.fromhex("71")
P2SH_VERBYTES = [bytes.fromhex("c4")]
WIF_BYTE = bytes.fromhex("f1")
GENESIS_HASH = ('bb0a78264637406b6360aad926284d54'
'4d7049f45189db5664f3c4d07350559e')
# Source: https://github.com/dashpay/dash
class Dash(Coin):
from server.session import DashElectrumX
from server.daemon import DashDaemon
NAME = "Dash"
SHORTNAME = "DASH"
NET = "mainnet"
XPUB_VERBYTES = bytes.fromhex("02fe52cc")
XPRV_VERBYTES = bytes.fromhex("02fe52f8")
GENESIS_HASH = ('00000ffd590b1485b3caadc19b22e637'
'9c733355108f107a430458cdf3407ab6')
P2PKH_VERBYTE = bytes.fromhex("4c")
P2SH_VERBYTES = [bytes.fromhex("10")]
WIF_BYTE = bytes.fromhex("cc")
TX_COUNT_HEIGHT = 569399
TX_COUNT = 2157510
TX_PER_BLOCK = 4
RPC_PORT = 9998
IRC_PREFIX = "D_"
IRC_CHANNEL = "#electrum-dash"
PEERS = [
'electrum.dash.org s t',
'electrum.masternode.io s t',
'electrum-drk.club s t',
'dashcrypto.space s t',
'electrum.dash.siampm.com s t',
'wl4sfwq2hwxnodof.onion s t',
]
SESSIONCLS = DashElectrumX
DAEMON = DashDaemon
@classmethod
def header_hash(cls, header):
'''Given a header return the hash.'''
import x11_hash
return x11_hash.getPoWHash(header)
class DashTestnet(Dash):
SHORTNAME = "tDASH"
NET = "testnet"
XPUB_VERBYTES = bytes.fromhex("3a805837")
XPRV_VERBYTES = bytes.fromhex("3a8061a0")
GENESIS_HASH = ('00000bafbc94add76cb75e2ec9289483'
'7288a481e5c005f6563d91623bf8bc2c')
P2PKH_VERBYTE = bytes.fromhex("8c")
P2SH_VERBYTES = [bytes.fromhex("13")]
WIF_BYTE = bytes.fromhex("ef")
TX_COUNT_HEIGHT = 101619
TX_COUNT = 132681
TX_PER_BLOCK = 1
RPC_PORT = 19998
IRC_PREFIX = "d_"
PEER_DEFAULT_PORTS = {'t': '51001', 's': '51002'}
PEERS = [
'electrum.dash.siampm.com s t',
]
class Argentum(CoinAuxPow):
NAME = "Argentum"
SHORTNAME = "ARG"
NET = "mainnet"
XPUB_VERBYTES = bytes.fromhex("0488b21e")
XPRV_VERBYTES = bytes.fromhex("0488ade4")
P2PKH_VERBYTE = bytes.fromhex("17")
P2SH_VERBYTES = [bytes.fromhex("05")]
WIF_BYTE = bytes.fromhex("97")
GENESIS_HASH = ('88c667bc63167685e4e4da058fffdfe8'
'e007e5abffd6855de52ad59df7bb0bb2')
TX_COUNT = 2263089
TX_COUNT_HEIGHT = 2050260
TX_PER_BLOCK = 2000
IRC_PREFIX = "A_"
IRC_CHANNEL = "#electrum-arg"
RPC_PORT = 13581
class ArgentumTestnet(Argentum):
SHORTNAME = "XRG"
NET = "testnet"
XPUB_VERBYTES = bytes.fromhex("043587cf")
XPRV_VERBYTES = bytes.fromhex("04358394")
P2PKH_VERBYTE = bytes.fromhex("6f")
P2SH_VERBYTES = [bytes.fromhex("c4")]
WIF_BYTE = bytes.fromhex("ef")
REORG_LIMIT = 2000
class DigiByte(Coin):
NAME = "DigiByte"
SHORTNAME = "DGB"
NET = "mainnet"
XPUB_VERBYTES = bytes.fromhex("0488b21e")
XPRV_VERBYTES = bytes.fromhex("0488ade4")
P2PKH_VERBYTE = bytes.fromhex("1E")
P2SH_VERBYTES = [bytes.fromhex("05")]
WIF_BYTE = bytes.fromhex("80")
GENESIS_HASH = ('7497ea1b465eb39f1c8f507bc877078f'
'e016d6fcb6dfad3a64c98dcc6e1e8496')
TX_COUNT = 1046018
TX_COUNT_HEIGHT = 1435000
TX_PER_BLOCK = 1000
IRC_PREFIX = "DE_"
IRC_CHANNEL = "#electrum-dgb"
RPC_PORT = 12022
class DigiByteTestnet(DigiByte):
NET = "testnet"
XPUB_VERBYTES = bytes.fromhex("043587cf")
XPRV_VERBYTES = bytes.fromhex("04358394")
P2PKH_VERBYTE = bytes.fromhex("6f")
P2SH_VERBYTES = [bytes.fromhex("c4")]
WIF_BYTE = bytes.fromhex("ef")
GENESIS_HASH = ('b5dca8039e300198e5fe7cd23bdd1728'
'e2a444af34c447dbd0916fa3430a68c2')
IRC_PREFIX = "DET_"
IRC_CHANNEL = "#electrum-dgb"
RPC_PORT = 15022
REORG_LIMIT = 2000
class FairCoin(Coin):
NAME = "FairCoin"
SHORTNAME = "FAIR"
NET = "mainnet"
XPUB_VERBYTES = bytes.fromhex("0488b21e")
XPRV_VERBYTES = bytes.fromhex("0488ade4")
P2PKH_VERBYTE = bytes.fromhex("5f")
P2SH_VERBYTES = [bytes.fromhex("24")]
WIF_BYTE = bytes.fromhex("df")
GENESIS_HASH = ('1f701f2b8de1339dc0ec908f3fb6e9b0'
'b870b6f20ba893e120427e42bbc048d7')
BASIC_HEADER_SIZE = 108
TX_COUNT = 1000
TX_COUNT_HEIGHT = 1000
TX_PER_BLOCK = 1
IRC_PREFIX = "E_"
IRC_CHANNEL = "#fairlectrum"
RPC_PORT = 40405
PEER_DEFAULT_PORTS = {'t': '51811', 's': '51812'}
PEERS = [
'fairlectrum.fair-coin.net s',
'fairlectrum.fair.to s',
]
@classmethod
def block_full(cls, block, height):
'''Returns (header, [(deserialized_tx, tx_hash), ...]) given a
block and its height.'''
if height > 0:
return super().block_full(block, height)
else:
return Block(cls.block_header(block, height), [])
@classmethod
def electrum_header(cls, header, height):
version, = struct.unpack('<I', header[:4])
timestamp, creatorId = struct.unpack('<II', header[100:108])
return {
'block_height': height,
'version': version,
'prev_block_hash': hash_to_str(header[4:36]),
'merkle_root': hash_to_str(header[36:68]),
'payload_hash': hash_to_str(header[68:100]),
'timestamp': timestamp,
'creatorId': creatorId,
}
class Zcash(Coin):
NAME = "Zcash"
SHORTNAME = "ZEC"
NET = "mainnet"
XPUB_VERBYTES = bytes.fromhex("0488b21e")
XPRV_VERBYTES = bytes.fromhex("0488ade4")
P2PKH_VERBYTE = bytes.fromhex("1CB8")
P2SH_VERBYTES = [bytes.fromhex("1CBD")]
WIF_BYTE = bytes.fromhex("80")
GENESIS_HASH = ('00040fe8ec8471911baa1db1266ea15d'
'd06b4a8a5c453883c000b031973dce08')
STATIC_BLOCK_HEADERS = False
BASIC_HEADER_SIZE = 140 # Excluding Equihash solution
DESERIALIZER = DeserializerZcash
TX_COUNT = 329196
TX_COUNT_HEIGHT = 68379
TX_PER_BLOCK = 5
IRC_PREFIX = "E_"
IRC_CHANNEL = "#electrum-zcash"
RPC_PORT = 8232
REORG_LIMIT = 800
@classmethod
def electrum_header(cls, header, height):
version, = struct.unpack('<I', header[:4])
timestamp, bits = struct.unpack('<II', header[100:108])
return {
'block_height': height,
'version': version,
'prev_block_hash': hash_to_str(header[4:36]),
'merkle_root': hash_to_str(header[36:68]),
'timestamp': timestamp,
'bits': bits,
'nonce': hash_to_str(header[108:140]),
}
@classmethod
def block_header(cls, block, height):
'''Return the block header bytes'''
block = cls.DESERIALIZER(block)
return block.read_header(height, cls.BASIC_HEADER_SIZE)
class Einsteinium(Coin):
NAME = "Einsteinium"
SHORTNAME = "EMC2"
NET = "mainnet"
# TODO add correct values for XPUB, XPRIV
XPUB_VERBYTES = bytes.fromhex("0488b21e")
XPRV_VERBYTES = bytes.fromhex("0488ade4")
P2PKH_VERBYTE = bytes.fromhex("21")
P2SH_VERBYTES = [bytes.fromhex("05")]
WIF_BYTE = bytes.fromhex("a1")
GENESIS_HASH = ('4e56204bb7b8ac06f860ff1c845f03f9'
'84303b5b97eb7b42868f714611aed94b')
TX_COUNT = 2087559
TX_COUNT_HEIGHT = 1358517
TX_PER_BLOCK = 2
IRC_PREFIX = "E_"
IRC_CHANNEL = "#electrum-emc2"
RPC_PORT = 41879