Repository: lhartikk/GenesisH0 Branch: master Commit: dcbe9b99b2aa Files: 3 Total size: 21.3 KB Directory structure: gitextract_35gdgpih/ ├── LICENSE ├── README.md └── genesis.py ================================================ FILE CONTENTS ================================================ ================================================ FILE: LICENSE ================================================ Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. Definitions. "License" shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. "Licensor" shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. "Legal Entity" shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. 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We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives. Copyright [yyyy] [name of copyright owner] Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. ================================================ FILE: README.md ================================================ # GenesisH0 A python script for creating the parameters required for a unique genesis block. SHA256/scrypt/X11/X13/X15. ### Dependencies sudo pip install scrypt construct==2.5.2 To create geneses based on X11 algorithm you will also need to install the [xcoin-hash](https://github.com/lhartikk/xcoin-hash) module. For X13 you will need the [x13_hash](https://github.com/sherlockcoin/X13-PythonHash) module and for X15 the [x15_hash](https://github.com/minings/x15_hash) module. ### Examples Create the original genesis hash found in Bitcoin python genesis.py -z "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks" -n 2083236893 -t 1231006505 Output: algorithm: sha256 merkle hash: 4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b pszTimestamp: The Times 03/Jan/2009 Chancellor on brink of second bailout for banks pubkey: 04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f time: 1231006505 bits: 0x1d00ffff Searching for genesis hash.. genesis hash found! nonce: 2083236893 genesis hash: 000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f Create the regtest genesis hash found in Bitcoin python genesis.py -z "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks" -n 2 -t 1296688602 -b 0x207fffff Create the original genesis hash found in Litecoin python genesis.py -a scrypt -z "NY Times 05/Oct/2011 Steve Jobs, Apple’s Visionary, Dies at 56" -p "040184710fa689ad5023690c80f3a49c8f13f8d45b8c857fbcbc8bc4a8e4d3eb4b10f4d4604fa08dce601aaf0f470216fe1b51850b4acf21b179c45070ac7b03a9" -t 1317972665 -n 2084524493 Create a unique genesis hash with custom pszTimestamp python genesis.py -a scrypt -z "Time flies like an arrow. Fruit flies like a banana." Create the original genesis hash found in DarkCoin. (requires [xcoin-hash](https://github.com/lhartikk/xcoin-hash)) python genesis.py -a X11 -z "Wired 09/Jan/2014 The Grand Experiment Goes Live: Overstock.com Is Now Accepting Bitcoins" -t 1317972665 -p "040184710fa689ad5023690c80f3a49c8f13f8d45b8c857fbcbc8bc4a8e4d3eb4b10f4d4604fa08dce601aaf0f470216fe1b51850b4acf21b179c45070ac7b03a9" -n 28917698 -t 1390095618 -v 5000000000 Create the original genesis hash found in HiroCoin (requires [xcoin-hash](https://github.com/lhartikk/xcoin-hash)). python genesis.py -a X11 -z "JapanToday 13/Mar/2014 Ways eyed to make planes easier to find in ocean" -p "040184710fa689ad5023690c80f3a49c8f13f8d45b8c857fbcbc8bc4a8e4d3eb4b10f4d4604fa08dce601aaf0f470216fe1b51850b4acf21b179c45070ac7b03a9" -n 1234746574 -t 1394723131 -v 40000000000 ### Options Usage: genesis.py [options] Options: -h, --help show this help message and exit -t TIME, --time=TIME the (unix) time when the genesisblock is created -z TIMESTAMP, --timestamp=TIMESTAMP the pszTimestamp found in the coinbase of the genesisblock -n NONCE, --nonce=NONCE the first value of the nonce that will be incremented when searching the genesis hash -a ALGORITHM, --algorithm=ALGORITHM the PoW algorithm: [SHA256|scrypt|X11|X13|X15] -p PUBKEY, --pubkey=PUBKEY the pubkey found in the output script -v VALUE, --value=VALUE the value in coins for the output, full value (exp. in bitcoin 5000000000 - To get other coins value: Block Value * 100000000) -b BITS, --bits=BITS the target in compact representation, associated to a difficulty of 1 ================================================ FILE: genesis.py ================================================ import hashlib, binascii, struct, array, os, time, sys, optparse import scrypt from construct import * def main(): options = get_args() algorithm = get_algorithm(options) input_script = create_input_script(options.timestamp) output_script = create_output_script(options.pubkey) # hash merkle root is the double sha256 hash of the transaction(s) tx = create_transaction(input_script, output_script,options) hash_merkle_root = hashlib.sha256(hashlib.sha256(tx).digest()).digest() print_block_info(options, hash_merkle_root) block_header = create_block_header(hash_merkle_root, options.time, options.bits, options.nonce) genesis_hash, nonce = generate_hash(block_header, algorithm, options.nonce, options.bits) announce_found_genesis(genesis_hash, nonce) def get_args(): parser = optparse.OptionParser() parser.add_option("-t", "--time", dest="time", default=int(time.time()), type="int", help="the (unix) time when the genesisblock is created") parser.add_option("-z", "--timestamp", dest="timestamp", default="The Times 03/Jan/2009 Chancellor on brink of second bailout for banks", type="string", help="the pszTimestamp found in the coinbase of the genesisblock") parser.add_option("-n", "--nonce", dest="nonce", default=0, type="int", help="the first value of the nonce that will be incremented when searching the genesis hash") parser.add_option("-a", "--algorithm", dest="algorithm", default="SHA256", help="the PoW algorithm: [SHA256|scrypt|X11|X13|X15]") parser.add_option("-p", "--pubkey", dest="pubkey", default="04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f", type="string", help="the pubkey found in the output script") parser.add_option("-v", "--value", dest="value", default=5000000000, type="int", help="the value in coins for the output, full value (exp. in bitcoin 5000000000 - To get other coins value: Block Value * 100000000)") parser.add_option("-b", "--bits", dest="bits", type="int", help="the target in compact representation, associated to a difficulty of 1") (options, args) = parser.parse_args() if not options.bits: if options.algorithm == "scrypt" or options.algorithm == "X11" or options.algorithm == "X13" or options.algorithm == "X15": options.bits = 0x1e0ffff0 else: options.bits = 0x1d00ffff return options def get_algorithm(options): supported_algorithms = ["SHA256", "scrypt", "X11", "X13", "X15"] if options.algorithm in supported_algorithms: return options.algorithm else: sys.exit("Error: Given algorithm must be one of: " + str(supported_algorithms)) def create_input_script(psz_timestamp): psz_prefix = "" #use OP_PUSHDATA1 if required if len(psz_timestamp) > 76: psz_prefix = '4c' script_prefix = '04ffff001d0104' + psz_prefix + chr(len(psz_timestamp)).encode('hex') print (script_prefix + psz_timestamp.encode('hex')) return (script_prefix + psz_timestamp.encode('hex')).decode('hex') def create_output_script(pubkey): script_len = '41' OP_CHECKSIG = 'ac' return (script_len + pubkey + OP_CHECKSIG).decode('hex') def create_transaction(input_script, output_script,options): transaction = Struct("transaction", Bytes("version", 4), Byte("num_inputs"), StaticField("prev_output", 32), UBInt32('prev_out_idx'), Byte('input_script_len'), Bytes('input_script', len(input_script)), UBInt32('sequence'), Byte('num_outputs'), Bytes('out_value', 8), Byte('output_script_len'), Bytes('output_script', 0x43), UBInt32('locktime')) tx = transaction.parse('\x00'*(127 + len(input_script))) tx.version = struct.pack('> 24) - 3)) while True: sha256_hash, header_hash = generate_hashes_from_block(data_block, algorithm) last_updated = calculate_hashrate(nonce, last_updated) if is_genesis_hash(header_hash, target): if algorithm == "X11" or algorithm == "X13" or algorithm == "X15": return (header_hash, nonce) return (sha256_hash, nonce) else: nonce = nonce + 1 data_block = data_block[0:len(data_block) - 4] + struct.pack('