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BTC-Send-Transaction-Hex-Format.md

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BTC 【Pay to public key hash】交易 Hex 格式

Byte-map of a transaction with each type of TxIn and TxOut serialization.

Image of Yaktocat

Transaction Hex before signed

020000000393d3ba1a02fd978b494e79ed199247079eb4f766fadc0b807c0734d4b18bd9810000000000ffffffff7dbd03383a240f27c
7735af707e823da894e11732c5fe5919adff1672b817be00100000000ffffffff7dbd03383a240f27c7735af707e823da894e11732c5f
e5919adff1672b817be00200000000ffffffff0320bf0200000000001976a9147b9a627a184897f10d31d73d87c2eea191d8f50188ac0
8c60000000000001976a9148bafc8dad0c87025278b4cc1c80ac8d402cb59eb88ac0c8c0000000000001976a914481e003d23566c1789
dc9362085c3a0876570c7c88ac00000000

Transaction Hex after signed

020000000393d3ba1a02fd978b494e79ed199247079eb4f766fadc0b807c0734d4b18bd981000000006a47304402202769801183cd50e
b2bd6c316a55add49fa4c0fd7216b523f394b97fe410b582d02205c76f4009b38b82a20f88b5f6af45f09220ba43d7e1c2064fa74807d
db299d7f012102275753690ab58df3c923001e94d407e30b03e60b1f2461729a1dd4f37ebe2469ffffffff7dbd03383a240f27c7735af
707e823da894e11732c5fe5919adff1672b817be0010000006a47304402204a24a1de4b4e552d1f53121825d139b1d1739d149df5a01d
2ead760b865635c2022047a9b8f4d29dac29e9eacff6aea67249dcf716d576a00dbe24cf92c34a272909012102275753690ab58df3c92
3001e94d407e30b03e60b1f2461729a1dd4f37ebe2469ffffffff7dbd03383a240f27c7735af707e823da894e11732c5fe5919adff167
2b817be0020000006a473044022057a3fa58744fffebcb8a1bea4a99bd61049678d4ee9250c5f66ea17198ebd97a022078abef9098838
d06e9a51099ce010f0dc74c6b1284de03a929bcdabab8fd4cd40121039299b5f32a4834e27662397b7ade9cacdd9cd7243b83c039c22d
a3c6dc0b28c7ffffffff0320bf0200000000001976a9147b9a627a184897f10d31d73d87c2eea191d8f50188ac08c6000000000000197
6a9148bafc8dad0c87025278b4cc1c80ac8d402cb59eb88ac0c8c0000000000001976a914481e003d23566c1789dc9362085c3a087657
0c7c88ac00000000

Decode Transaction Hex

{
    "addresses": [
        "1CGZ4Ry37WHfdQgMzyAnNX6m3QCLbvRSTM",
        "1DjbWPixe2GqH3UATeaMNpScno6REjF71H",
        "17aKbKASav6dj1Uh7i9nqhXnPbu6Y3rDmA"
    ],
    "block_height": -1,
    "block_index": -1,
    "confirmations": 0,
    "double_spend": false,
    "fees": 0,
    "hash": "2109b6873980e425920fd07c844aae8eb7eeeea996a00f89175078f6e385f8b9",
    "inputs": [
        {
            "age": 0,
            "vout": 0,
            "txid": "81d98bb1d434077c800bdcfa66f7b49e07479219ed794e498b97fd021abad393",
            "scriptSig": "47304402202769801183cd50eb2bd6c316a55add49fa4c0fd7216b523f394b97fe410b582d02205c76f4009b38b82a20f88b5f6af45f09220ba43d7e1c2064fa74807ddb299d7f012102275753690ab58df3c923001e94d407e30b03e60b1f2461729a1dd4f37ebe2469",
            "script_type": "empty",
            "sequence": 4294967295
        },
        {
            "age": 0,
            "vout": 1,
            "txid": "e07b812b67f1df9a91e55f2c73114e89da23e807f75a73c7270f243a3803bd7d",
            "scriptSig": "47304402204a24a1de4b4e552d1f53121825d139b1d1739d149df5a01d2ead760b865635c2022047a9b8f4d29dac29e9eacff6aea67249dcf716d576a00dbe24cf92c34a272909012102275753690ab58df3c923001e94d407e30b03e60b1f2461729a1dd4f37ebe2469",
            "script_type": "empty",
            "sequence": 4294967295
        },
        {
            "age": 0,
            "vout": 2,
            "txid": "e07b812b67f1df9a91e55f2c73114e89da23e807f75a73c7270f243a3803bd7d",
            "scriptSig": "473044022057a3fa58744fffebcb8a1bea4a99bd61049678d4ee9250c5f66ea17198ebd97a022078abef9098838d06e9a51099ce010f0dc74c6b1284de03a929bcdabab8fd4cd40121039299b5f32a4834e27662397b7ade9cacdd9cd7243b83c039c22da3c6dc0b28c7",
            "script_type": "empty",
            "sequence": 4294967295
        }
    ],
    "outputs": [
        {
            "addresses": [
                "1CGZ4Ry37WHfdQgMzyAnNX6m3QCLbvRSTM"
            ],
            "scriptPubKey": "76a9147b9a627a184897f10d31d73d87c2eea191d8f50188ac",
            "script_type": "pay-to-pubkey-hash",
            "value": 180000
        },
        {
            "addresses": [
                "1DjbWPixe2GqH3UATeaMNpScno6REjF71H"
            ],
            "scriptPubKey": "76a9148bafc8dad0c87025278b4cc1c80ac8d402cb59eb88ac",
            "script_type": "pay-to-pubkey-hash",
            "value": 50696
        },
        {
            "addresses": [
                "17aKbKASav6dj1Uh7i9nqhXnPbu6Y3rDmA"
            ],
            "scriptPubKey": "76a914481e003d23566c1789dc9362085c3a0876570c7c88ac",
            "script_type": "pay-to-pubkey-hash",
            "value": 35852
        }
    ],
    "preference": "low",
    "received": "2020-05-13T08:36:41.702871659Z",
    "relayed_by": "54.152.208.149",
    "size": 553,
    "total": 266548,
    "ver": 2,
    "vin_sz": 3,
    "vout_sz": 3
}

版本號 4 bytes

Transaction version number (note, this is signed); currently version 1 or 2. Programs creating transactions using newer consensus rules may use higher version numbers. Version 2 means that BIP 68 applies.

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

Input 數量

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

Inputs

020000000393d3ba1a02fd978b494e79ed199247079eb4f766fadc0b807c0734d4b18bd981000000006a47304402202769801183cd50eb2bd6c316a55add49fa4c0fd7216b523f394b97fe410b582d02205c76f4009b38b82a20f88b5f6af45f09220ba43d7e1c2064fa74807ddb299d7f012102275753690ab58df3c923001e94d407e30b03e60b1f2461729a1dd4f37ebe2469ffffffff 7dbd03383a240f27c7735af707e823da894e11732c5fe5919adff1672b817be0010000006a47304402204a24a1de4b4e552d1f53121825d139b1d1739d149df5a01d2ead760b865635c2022047a9b8f4d29dac29e9eacff6aea67249dcf716d576a00dbe24cf92c34a272909012102275753690ab58df3c923001e94d407e30b03e60b1f2461729a1dd4f37ebe2469ffffffff 7dbd03383a240f27c7735af707e823da894e11732c5fe5919adff1672b817be0020000006a473044022057a3fa58744fffebcb8a1bea4a99bd61049678d4ee9250c5f66ea17198ebd97a022078abef9098838d06e9a51099ce010f0dc74c6b1284de03a929bcdabab8fd4cd40121039299b5f32a4834e27662397b7ade9cacdd9cd7243b83c039c22da3c6dc0b28c7ffffffff0320bf0200000000001976a9147b9a627a184897f10d31d73d87c2eea191d8f50188ac08c60000000000001976a9148bafc8dad0c87025278b4cc1c80ac8d402cb59eb88ac0c8c0000000000001976a914481e003d23566c1789dc9362085c3a0876570c7c88ac00000000

以第二個Inputs為例

7dbd03383a240f27c7735af707e823da894e11732c5fe5919adff1672b817be0010000006a47304402204a24a1de4b4e552d1f53121825d139b1d1739d149df5a01d2ead760b865635c2022047a9b8f4d29dac29e9eacff6aea67249dcf716d576a00dbe24cf92c34a272909012102275753690ab58df3c923001e94d407e30b03e60b1f2461729a1dd4f37ebe2469ffffffff
txid 以反向位元組順序序列化

7dbd03383a240f27c7735af707e823da894e11732c5fe5919adff1672b817be0010000006a47304402204a24a1de4b4e552d1f53121825d139b1d1739d149df5a01d2ead760b865635c2022047a9b8f4d29dac29e9eacff6aea67249dcf716d576a00dbe24cf92c34a272909012102275753690ab58df3c923001e94d407e30b03e60b1f2461729a1dd4f37ebe2469ffffffff

輸出索引（ vout ），標識使用來自該交易的哪個UTXO（第一個從0開始）4 bytes (同樣是反向位元組順序序列化)

7dbd03383a240f27c7735af707e823da894e11732c5fe5919adff1672b817be0010000006a47304402202769801183cd50eb2bd6c316a55add49fa4c0fd7216b523f394b97fe410b582d02205c76f4009b38b82a20f88b5f6af45f09220ba43d7e1c2064fa74807ddb299d7f012102275753690ab58df3c923001e94d407e30b03e60b1f2461729a1dd4f37ebe2469ffffffff

script Signature 長度 106 bytes

The number of bytes in the signature script. Maximum is 10,000 bytes.

7dbd03383a240f27c7735af707e823da894e11732c5fe5919adff1672b817be0010000006a47304402204a24a1de4b4e552d1f53121825d139b1d1739d149df5a01d2ead760b865635c2022047a9b8f4d29dac29e9eacff6aea67249dcf716d576a00dbe24cf92c34a272909012102275753690ab58df3c923001e94d407e30b03e60b1f2461729a1dd4f37ebe2469ffffffff

script Signature

A script-language script which satisfies the conditions placed in the outpoint’s pubkey script. Should only contain data pushes

7dbd03383a240f27c7735af707e823da894e11732c5fe5919adff1672b817be0010000006a47304402204a24a1de4b4e552d1f53121825d139b1d1739d149df5a01d2ead760b865635c2022047a9b8f4d29dac29e9eacff6aea67249dcf716d576a00dbe24cf92c34a272909012102275753690ab58df3c923001e94d407e30b03e60b1f2461729a1dd4f37ebe2469ffffffff

Pay-to-Script-Hash transaction

scriptSig: ..signatures... <serialized script>

Pay-to-Script-Hash m-of-n multi-signature transaction:

scriptSig: 0 <sig1> ... <script>

pay-to-pubkey transaction

scriptSig: <sig>

Pay-to-PubkeyHash transaction 可以分為兩部份

scriptSig: <sig> <pubKey>
  1. 簽名的序列化 (DER)
47304402204a24a1de4b4e552d1f53121825d139b1d1739d149df5a01d2ead760b865635c2022047a9b8f4d29dac29e9eacff6aea67249dcf716d576a00dbe24cf92c34a27290901

簽名的序列化 (DER)

0x47 ..................................... Push 71 bytes as data

0x30 —— 標識 DER 序列的開始

0x44 —— 序列長度 (68 bytes)

0x02 —— 接下來是一個整數

0x20 —— 整數的長度 (32 bytes)

R —— 4a24a1de4b4e552d1f53121825d139b1d1739d149df5a01d2ead760b865635c2

0x02 —— 接下來是另一個整數

0x20 —— 另一個整數的長度 (32 bytes)

S —— 47a9b8f4d29dac29e9eacff6aea67249dcf716d576a00dbe24cf92c34a272909

0x01 —— 一個後綴標識使用的雜湊類型 (SIGHASH_ALL)

  1. Public Key (對應signature Key 的公鑰，可以是也可以不是compressedKey )
2102275753690ab58df3c923001e94d407e30b03e60b1f2461729a1dd4f37ebe2469

0x21 —— 序列長度 (33 byte)

02275753690ab58df3c923001e94d407e30b03e60b1f2461729a1dd4f37ebe2469 —— compressed PublicKey

Compressed Key

A compressed key is just a way of storing a public key in fewer bytes (33 instead of 65). There are no compatibility or security issues because they are precisely the same keys, just stored in a different way.

Uint8List compressedPubKey(List<int> uncompressedPubKey) {
  if (uncompressedPubKey.length % 2 == 1) {
    uncompressedPubKey = uncompressedPubKey.sublist(1, uncompressedPubKey.length);
  }
  
  List<int> x = uncompressedPubKey.sublist(0, 32);
  List<int> y = uncompressedPubKey.sublist(32, 64);
  BigInt p = BigInt.parse(
      ‘fffffffffffffffffffffffffffffffffffffffffffffffffffffffefffffc2f’,
      radix: 16);

  BigInt xInt = BigInt.parse(hex.encode(x), radix: 16);
  BigInt yInt = BigInt.parse(hex.encode(y), radix: 16);
  BigInt check = (xInt.pow(3) + BigInt.from(7) - yInt.pow(2)) % p;
 
  if (check == BigInt.zero) {
    List<int> prefix =
        BigInt.parse(hex.encode(y), radix: 16).isEven ? [0x02] : [0x03];
    return Uint8List.fromList(prefix + x);
  }
}
序列號設置為 FFFFFFFF

Sequence number. Default for Bitcoin Core and almost all other programs is 0xffffffff.

7dbd03383a240f27c7735af707e823da894e11732c5fe5919adff1672b817be0010000006a47304402204a24a1de4b4e552d1f53121825d139b1d1739d149df5a01d2ead760b865635c2022047a9b8f4d29dac29e9eacff6aea67249dcf716d576a00dbe24cf92c34a272909012102275753690ab58df3c923001e94d407e30b03e60b1f2461729a1dd4f37ebe2469ffffffff

Outputs 數量

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

Output locktime 4 bytes

A time (Unix epoch time) or block number. See the locktime parsing rules.

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

Outputs

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 08c60000000000001976a9148bafc8dad0c87025278b4cc1c80ac8d402cb59eb88ac 0c8c0000000000001976a914481e003d23566c1789dc9362085c3a0876570c7c88ac00000000

突出顯示的部分有三個輸出，每個輸出按照 Transaction output serialization 所示進行了序列化。

以第一個Outputs為例

20bf0200000000001976a9147b9a627a184897f10d31d73d87c2eea191d8f50188ac
Output amount 8 位元組(小端序） 以聰（satoshis = 10^-8 bitcoin) 為單位的比特幣價值

在序列化的交易中,以小端序（低位位元組在前）編碼

20bf0200000000001976a9147b9a627a184897f10d31d73d87c2eea191d8f50188ac

<00 00 00 00 00 02 bf 20> == 180000 satoshis

Output 1——9 位元組 (VarInt) 後面的鎖定腳本的位元組數

20bf0200000000001976a9147b9a627a184897f10d31d73d87c2eea191d8f50188ac

Output scriptPubKey

20bf0200000000001976a9147b9a627a184897f10d31d73d87c2eea191d8f50188ac

76a9147b9a627a184897f10d31d73d87c2eea191d8f50188ac

is equal to

OP_DUP OP_HASH160 OP_PUSHBYTES_20 7b9a627a184897f10d31d73d87c2eea191d8f501 OP_EQUALVERIFY OP_CHECKSIG

76a9147b9a627a184897f10d31d73d87c2eea191d8f50188ac

| | 76 ..................................... OP_DUP

| | a9 ..................................... OP_HASH160

| | 14 ..................................... OP_PUSHBYTES_20

| | 88 ..................................... OP_EQUALVERIFY

| | ac ..................................... OP_CHECKSIG

76a9147b9a627a184897f10d31d73d87c2eea191d8f50188ac

| | 7b9a627a184897f10d31d73d87c2eea191d8f501 ..................................... PubKey hash

Get PubKey hash from receiver bitcoin address

base58 decode receiver address, then remove the first byte of prefix, finally according to scriptPubKey prefix 0x14 only take 20 byte of PubKey hash.

For example: 
receiver address: 1CGZ4Ry37WHfdQgMzyAnNX6m3QCLbvRSTM
base58 decode receiver address: 007B9A627A184897F10D31D73D87C2EEA191D8F501BF4B030C
remove prefix 0x00: 7B9A627A184897F10D31D73D87C2EEA191D8F501BF4B030C
    - 0x00 for P2PKH addresses on the main Bitcoin network (mainnet)
    - 0x6f for P2PKH addresses on the Bitcoin testing network (testnet)
    - 0x05 for P2SH addresses on mainnet
    - 0xc4 for P2SH addresses on testnet
take 20 byte of PubKey : 7B9A627A184897F10D31D73D87C2EEA191D8F501B

Online base58 encoder/decoder [http://lenschulwitz.com/base58]

Get PubKey hash from receiver bitcoin public key

1. PubKey hash = RIPEMD-160(SHA256(uncompressed public key [64 bytes])) [20 bytes]

Here’s a full list of Opcodes: [https://en.bitcoin.it/wiki/Script#Opcodes].

Warning icon Signature script modification warning: Signature scripts are not signed, so anyone can modify them. This means signature scripts should only contain data and data-pushing opcodes which can’t be modified without causing the pubkey script to fail. Placing non-data-pushing opcodes in the signature script currently makes a transaction non-standard, and future consensus rules may forbid such transactions altogether. (Non-data-pushing opcodes are already forbidden in signature scripts when spending a P2SH pubkey script.)

有用的連結 🔗

Bitcoin 有用的參考文件 BIP0143 wiki: [https://en.bitcoin.it/wiki/BIP_0143#Abstract]

BIP0143 github: [https://github.com/bitcoin/bips/blob/master/bip-0143.mediawiki]

Bitcoin Developer Reference： [https://bitcoin.org/en/developer-documentation]

bitcoin wiki: [https://en.bitcoin.it/wiki/Transaction#Input]

learnmeabitcoin: [https://learnmeabitcoin.com/guide/]

[中文]： [https://cypherpunks-core.github.io/bitcoinbook_2nd_zh/]

testnet txid detail [https://blockstream.info/testnet/tx/c8cb07b095ada727b31b5adaaf5b44094f618657af432f4474cee5447c6b612e?expand]

online hash [https://modulovalue.com/bird_cryptography/#/]

0nline base58 encoder & decoder [http://lenschulwitz.com/base58]

Online transaction hex Decoder [https://live.blockcypher.com/btc/decodetx/]

StatefulBuilder(
      builder: (context, setState) {
        return AlertDialog(
          title: Text("Title of Dialog"),
          content: Text(contentText),
          actions: <Widget>[
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              onPressed: () => Navigator.pop(context),
              child: Text("Cancel"),
            ),
            FlatButton(
              onPressed: () {
                setState(() {
                  contentText = "Changed Content of Dialog";
                });
              },
              child: Text("Change"),
            ),
          ],
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