Decode Bitcoin Raw Transaction Format

This section describes how to decode a Bitcoin raw transaction format.

Using the data structure given in the previous section, let's decode a raw transaction e22d5998a43e3e1d81784e6e92988d1c4eae77cd0e439542337e48a786 on the Bitcoin test network:

C:\>\local\bitcoin-0.15.1\bin\bitcoin-cli.exe -testnet getrawtransaction 
   e22d5998a43e3e1d81784e6e92988d1c4eae77cd0e439542337e48a786c75e69 false
   
0200000001aa4bc55d88477cc8921c4769e84882e99fc2961219a796b4c4007a2bc5356e6f0
00000006a47304402202ab88452cd720f3e42731a5fd1345e5f2c6888a3d0a0568abf315c46
e6b038cf0220394e02c12aecd9bb2356b4b09980476a4cb347b9e96088f39c995d6d0302fd7
601210387ab1fa2aedc1dfe5fd8fba9275455b392db1e3b7bad3a8d611fb3cdb789f84dfeff
ffff0220ebc4bb130000001976a914c14be92816c5ccfa8c742acba43ee5382ce22eac88ac4
11af129000000001976a9145e25fd265324c70a1a8bbbeb969614d39f6f664788ac0e8d1300

Here are the decoded fields and values:

Hex value  Name and Description

02000000   version - Transaction version 2

01         tx_in_count - 1 transaction input

aa4bc55d88477cc8921c4769e84882e99fc2961219a796b4c4007a2bc5356e6f
           outpoint txid - Identifies an old transaction where this input 
                           came from

00000000   outpoint index - This input was the first 1 output of the old
                            transaction

6a         script bytes - The signature script has 106 bytes.

47304402202ab88452cd720f3e42731a5fd1345e5f2c6888a3d0a0568abf315c46e6b038cf
0220394e02c12aecd9bb2356b4b09980476a4cb347b9e96088f39c995d6d0302fd76012103
87ab1fa2aedc1dfe5fd8fba9275455b392db1e3b7bad3a8d611fb3cdb789f84d
           signature script of this input

feffffff   sequence - End of this input

02         tx_out_count - 2 transaction outputs

20ebc4bb13000000
           value - Amount of the first output in little-endian integer
                   format: 84754623264 Satoshis = 847.54623264 BTC

19         script bytes - The pubkey script has 25 bytes
76a914c14be92816c5ccfa8c742acba43ee5382ce22eac88ac
           pubkey script - Represents the account address of the sender 
                           to keep unused fund of the input.

411af12900000000
           value - Amount of the second output in little-endian integer
                   format: 703666753 Satoshis = 7.03666753 BTC

19         script bytes - The pubkey script has 25 bytes

76a9145e25fd265324c70a1a8bbbeb969614d39f6f664788ac
           pubkey script - Represents my account address

0e8d1300   lock_time - Reference to a block height: 1281294, 
                       meaning this transaction was posted after that block

Last update: 2018.

Table of Contents

 About This Book

 Introduction of Bitcoin

 Bitcoin Blockchain

 Bitcoin Wallet

 Bitcoin Core

 Bitcoin Transaction

 Bitcoin-Qt - Bitcoin Core GUI

 Bitcoin Mining

 Bitcoin Consensus Rules

 Bitcoin Block Data Structure

Bitcoin Transaction Data Structure

 Data Properties of Bitcoin Transaction

 Data Structure of Bitcoin Raw Transaction Format

Decode Bitcoin Raw Transaction Format

 Data Structure of Coinbase Transaction

 Calculate Transaction ID

 blockexplorer.com API

 Copay - Bitcoin Wallet

 References

 PDF Printing Version