blvm_protocol/

genesis.rs

//! Genesis Blocks
//!
//! Provides actual Bitcoin genesis blocks for mainnet, testnet, and regtest networks.

use blvm_consensus::types::*;

/// Create Bitcoin mainnet genesis block
pub fn mainnet_genesis() -> Block {
    // Bitcoin mainnet genesis block
    // Hash: 0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f
    // Merkle root must be in Bitcoin internal byte order (reversed from display)
    Block {
        header: BlockHeader {
            version: 1,
            prev_block_hash: [0u8; 32], // All zeros for genesis
            merkle_root: [
                0x3b, 0xa3, 0xed, 0xfd, 0x7a, 0x7b, 0x12, 0xb2, 0x7a, 0xc7, 0x2c, 0x3e, 0x67, 0x76,
                0x8f, 0x61, 0x7f, 0xc8, 0x1b, 0xc3, 0x88, 0x8a, 0x51, 0x32, 0x3a, 0x9f, 0xb8, 0xaa,
                0x4b, 0x1e, 0x5e, 0x4a,
            ],
            timestamp: 1231006505, // Jan 3, 2009
            bits: 0x1d00ffff,
            nonce: 2083236893,
        },
        transactions: vec![Transaction {
            version: 1,
            inputs: crate::tx_inputs![TransactionInput {
                prevout: OutPoint {
                    hash: [0u8; 32],
                    index: 0xffffffff,
                },
                script_sig: vec![
                    0x04, 0xff, 0xff, 0x00, 0x1d, 0x01, 0x04, 0x45, 0x54, 0x68, 0x65, 0x20, 0x54,
                    0x69, 0x6d, 0x65, 0x73, 0x20, 0x30, 0x33, 0x2f, 0x4a, 0x61, 0x6e, 0x2f, 0x32,
                    0x30, 0x30, 0x39, 0x20, 0x43, 0x68, 0x61, 0x6e, 0x63, 0x65, 0x6c, 0x6c, 0x6f,
                    0x72, 0x20, 0x6f, 0x6e, 0x20, 0x62, 0x72, 0x69, 0x6e, 0x6b, 0x20, 0x6f, 0x66,
                    0x20, 0x73, 0x65, 0x63, 0x6f, 0x6e, 0x64, 0x20, 0x62, 0x61, 0x69, 0x6c, 0x6f,
                    0x75, 0x74, 0x20, 0x66, 0x6f, 0x72, 0x20, 0x62, 0x61, 0x6e, 0x6b, 0x73,
                ], // "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks"
                sequence: 0xffffffff,
            }],
            outputs: crate::tx_outputs![TransactionOutput {
                value: 50_0000_0000, // 50 BTC in satoshis
                script_pubkey: vec![
                    0x41, 0x04, 0x67, 0x8a, 0xfd, 0xb0, 0xfe, 0x55, 0x48, 0x27, 0x19, 0x67, 0xf1,
                    0xa6, 0x71, 0x30, 0xb7, 0x10, 0x5c, 0xd6, 0xa8, 0x28, 0xe0, 0x39, 0x09, 0xa6,
                    0x79, 0x62, 0xe0, 0xea, 0x1f, 0x61, 0xde, 0xb6, 0x49, 0xf6, 0xbc, 0x3f, 0x4c,
                    0xef, 0x38, 0xc4, 0xf3, 0x55, 0x04, 0xe5, 0x1e, 0xc1, 0x12, 0xde, 0x5c, 0x38,
                    0x4d, 0xf7, 0xba, 0x0b, 0x8d, 0x57, 0x8a, 0x4c, 0x70, 0x2b, 0x6b, 0xf1, 0x1d,
                    0x5f, 0xac,
                ],
            }],
            lock_time: 0,
        }]
        .into_boxed_slice(),
    }
}

/// Create Bitcoin testnet genesis block
pub fn testnet_genesis() -> Block {
    // Bitcoin testnet genesis block
    // Hash: 0x000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943
    // Same coinbase as mainnet → same merkle root (internal byte order)
    Block {
        header: BlockHeader {
            version: 1,
            prev_block_hash: [0u8; 32],
            merkle_root: [
                0x3b, 0xa3, 0xed, 0xfd, 0x7a, 0x7b, 0x12, 0xb2, 0x7a, 0xc7, 0x2c, 0x3e, 0x67, 0x76,
                0x8f, 0x61, 0x7f, 0xc8, 0x1b, 0xc3, 0x88, 0x8a, 0x51, 0x32, 0x3a, 0x9f, 0xb8, 0xaa,
                0x4b, 0x1e, 0x5e, 0x4a,
            ],
            timestamp: 1296688602, // Testnet genesis timestamp
            bits: 0x1d00ffff,
            nonce: 414098458,
        },
        transactions: vec![Transaction {
            version: 1,
            inputs: crate::tx_inputs![TransactionInput {
                prevout: OutPoint {
                    hash: [0u8; 32],
                    index: 0xffffffff,
                },
                script_sig: vec![
                    0x04, 0xff, 0xff, 0x00, 0x1d, 0x01, 0x04, 0x45, 0x54, 0x68, 0x65, 0x20, 0x54,
                    0x69, 0x6d, 0x65, 0x73, 0x20, 0x30, 0x33, 0x2f, 0x4a, 0x61, 0x6e, 0x2f, 0x32,
                    0x30, 0x30, 0x39, 0x20, 0x43, 0x68, 0x61, 0x6e, 0x63, 0x65, 0x6c, 0x6c, 0x6f,
                    0x72, 0x20, 0x6f, 0x6e, 0x20, 0x62, 0x72, 0x69, 0x6e, 0x6b, 0x20, 0x6f, 0x66,
                    0x20, 0x73, 0x65, 0x63, 0x6f, 0x6e, 0x64, 0x20, 0x62, 0x61, 0x69, 0x6c, 0x6f,
                    0x75, 0x74, 0x20, 0x66, 0x6f, 0x72, 0x20, 0x62, 0x61, 0x6e, 0x6b, 0x73,
                ],
                sequence: 0xffffffff,
            }],
            outputs: crate::tx_outputs![TransactionOutput {
                value: 50_0000_0000,
                script_pubkey: vec![
                    0x41, 0x04, 0x67, 0x8a, 0xfd, 0xb0, 0xfe, 0x55, 0x48, 0x27, 0x19, 0x67, 0xf1,
                    0xa6, 0x71, 0x30, 0xb7, 0x10, 0x5c, 0xd6, 0xa8, 0x28, 0xe0, 0x39, 0x09, 0xa6,
                    0x79, 0x62, 0xe0, 0xea, 0x1f, 0x61, 0xde, 0xb6, 0x49, 0xf6, 0xbc, 0x3f, 0x4c,
                    0xef, 0x38, 0xc4, 0xf3, 0x55, 0x04, 0xe5, 0x1e, 0xc1, 0x12, 0xde, 0x5c, 0x38,
                    0x4d, 0xf7, 0xba, 0x0b, 0x8d, 0x57, 0x8a, 0x4c, 0x70, 0x2b, 0x6b, 0xf1, 0x1d,
                    0x5f, 0xac,
                ],
            }],
            lock_time: 0,
        }]
        .into_boxed_slice(),
    }
}

/// Create Bitcoin regtest genesis block
pub fn regtest_genesis() -> Block {
    // Bitcoin regtest genesis block
    // Hash: 0x0f9188f13cb7b2c28f4514ac48c96e0d99c5cb2f5e33a1748f0baf3323f6e5c0
    // Same coinbase as mainnet → same merkle root (internal byte order)
    Block {
        header: BlockHeader {
            version: 1,
            prev_block_hash: [0u8; 32],
            merkle_root: [
                0x3b, 0xa3, 0xed, 0xfd, 0x7a, 0x7b, 0x12, 0xb2, 0x7a, 0xc7, 0x2c, 0x3e, 0x67, 0x76,
                0x8f, 0x61, 0x7f, 0xc8, 0x1b, 0xc3, 0x88, 0x8a, 0x51, 0x32, 0x3a, 0x9f, 0xb8, 0xaa,
                0x4b, 0x1e, 0x5e, 0x4a,
            ],
            timestamp: 1296688602, // Same as testnet for regtest
            bits: 0x207fffff,      // Easier difficulty
            nonce: 2,
        },
        transactions: vec![Transaction {
            version: 1,
            inputs: crate::tx_inputs![TransactionInput {
                prevout: OutPoint {
                    hash: [0u8; 32],
                    index: 0xffffffff,
                },
                script_sig: vec![
                    0x04, 0xff, 0xff, 0x00, 0x1d, 0x01, 0x04, 0x45, 0x54, 0x68, 0x65, 0x20, 0x54,
                    0x69, 0x6d, 0x65, 0x73, 0x20, 0x30, 0x33, 0x2f, 0x4a, 0x61, 0x6e, 0x2f, 0x32,
                    0x30, 0x30, 0x39, 0x20, 0x43, 0x68, 0x61, 0x6e, 0x63, 0x65, 0x6c, 0x6c, 0x6f,
                    0x72, 0x20, 0x6f, 0x6e, 0x20, 0x62, 0x72, 0x69, 0x6e, 0x6b, 0x20, 0x6f, 0x66,
                    0x20, 0x73, 0x65, 0x63, 0x6f, 0x6e, 0x64, 0x20, 0x62, 0x61, 0x69, 0x6c, 0x6f,
                    0x75, 0x74, 0x20, 0x66, 0x6f, 0x72, 0x20, 0x62, 0x61, 0x6e, 0x6b, 0x73,
                ],
                sequence: 0xffffffff,
            }],
            outputs: crate::tx_outputs![TransactionOutput {
                value: 50_0000_0000,
                script_pubkey: vec![
                    0x41, 0x04, 0x67, 0x8a, 0xfd, 0xb0, 0xfe, 0x55, 0x48, 0x27, 0x19, 0x67, 0xf1,
                    0xa6, 0x71, 0x30, 0xb7, 0x10, 0x5c, 0xd6, 0xa8, 0x28, 0xe0, 0x39, 0x09, 0xa6,
                    0x79, 0x62, 0xe0, 0xea, 0x1f, 0x61, 0xde, 0xb6, 0x49, 0xf6, 0xbc, 0x3f, 0x4c,
                    0xef, 0x38, 0xc4, 0xf3, 0x55, 0x04, 0xe5, 0x1e, 0xc1, 0x12, 0xde, 0x5c, 0x38,
                    0x4d, 0xf7, 0xba, 0x0b, 0x8d, 0x57, 0x8a, 0x4c, 0x70, 0x2b, 0x6b, 0xf1, 0x1d,
                    0x5f, 0xac,
                ],
            }],
            lock_time: 0,
        }]
        .into_boxed_slice(),
    }
}

/// Create Bitcoin signet genesis block (default public signet, BIP325)
pub fn signet_genesis() -> Block {
    // Hash: 0x00000008819873e925422c1ff0f99f7cc9bbb232af63a077a480a3633bee1ef6
    Block {
        header: BlockHeader {
            version: 1,
            prev_block_hash: [0u8; 32],
            merkle_root: [
                0x3b, 0xa3, 0xed, 0xfd, 0x7a, 0x7b, 0x12, 0xb2, 0x7a, 0xc7, 0x2c, 0x3e, 0x67, 0x76,
                0x8f, 0x61, 0x7f, 0xc8, 0x1b, 0xc3, 0x88, 0x8a, 0x51, 0x32, 0x3a, 0x9f, 0xb8, 0xaa,
                0x4b, 0x1e, 0x5e, 0x4a,
            ],
            timestamp: 1_598_918_400,
            bits: 0x1e0377ae,
            nonce: 52_613_770,
        },
        transactions: vec![Transaction {
            version: 1,
            inputs: crate::tx_inputs![TransactionInput {
                prevout: OutPoint {
                    hash: [0u8; 32],
                    index: 0xffffffff,
                },
                script_sig: vec![
                    0x04, 0xff, 0xff, 0x00, 0x1d, 0x01, 0x04, 0x45, 0x54, 0x68, 0x65, 0x20, 0x54,
                    0x69, 0x6d, 0x65, 0x73, 0x20, 0x30, 0x33, 0x2f, 0x4a, 0x61, 0x6e, 0x2f, 0x32,
                    0x30, 0x30, 0x39, 0x20, 0x43, 0x68, 0x61, 0x6e, 0x63, 0x65, 0x6c, 0x6c, 0x6f,
                    0x72, 0x20, 0x6f, 0x6e, 0x20, 0x62, 0x72, 0x69, 0x6e, 0x6b, 0x20, 0x6f, 0x66,
                    0x20, 0x73, 0x65, 0x63, 0x6f, 0x6e, 0x64, 0x20, 0x62, 0x61, 0x69, 0x6c, 0x6f,
                    0x75, 0x74, 0x20, 0x66, 0x6f, 0x72, 0x20, 0x62, 0x61, 0x6e, 0x6b, 0x73,
                ],
                sequence: 0xffffffff,
            }],
            outputs: crate::tx_outputs![TransactionOutput {
                value: 50_0000_0000,
                script_pubkey: vec![
                    0x41, 0x04, 0x67, 0x8a, 0xfd, 0xb0, 0xfe, 0x55, 0x48, 0x27, 0x19, 0x67, 0xf1,
                    0xa6, 0x71, 0x30, 0xb7, 0x10, 0x5c, 0xd6, 0xa8, 0x28, 0xe0, 0x39, 0x09, 0xa6,
                    0x79, 0x62, 0xe0, 0xea, 0x1f, 0x61, 0xde, 0xb6, 0x49, 0xf6, 0xbc, 0x3f, 0x4c,
                    0xef, 0x38, 0xc4, 0xf3, 0x55, 0x04, 0xe5, 0x1e, 0xc1, 0x12, 0xde, 0x5c, 0x38,
                    0x4d, 0xf7, 0xba, 0x0b, 0x8d, 0x57, 0x8a, 0x4c, 0x70, 0x2b, 0x6b, 0xf1, 0x1d,
                    0x5f, 0xac,
                ],
            }],
            lock_time: 0,
        }]
        .into_boxed_slice(),
    }
}