Reading Bitcoin Block Data Using Python

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Bitcoin is a decentralized system and its blockchain data is stored in blocks. Each block contains a list of transactions, which are then broken down into individual block transactions. This article will walk you through reading each Bitcoin block in Python.

Required Libraries

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We will use the following libraries to read Bitcoin block data:

• “getblockinfo” (a wrapper for “blockchain.py”)

• “hashlib”.

• “random”.

You can install these libraries using pip:

pip install getblockinfo hashlib

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Reading Bitcoin Block Data Using Python

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We will write a Python script to read each Bitcoin block and extract the transaction data. We will use this structure:

• Get the latest block hash

• Use getblockinfo to parse the block header, including transaction data

• Extract the transaction data (amounts, addresses)

import getblockinfo
import hashlib
def read_block_by_hash(hash):
"""
Read a Bitcoin block by hash.
Args:
hash(str): The hash of the block.
Return:
dict: A dictionary containing information about the block.
"""

Get the latest block
latest_block = getblockinfo.getblockinfo(hash)

Initialize an empty dictionary to store transaction data
transaction_data = {}

View each transaction in the block
TX in last_block['transactions']:

Extract the address and amount
address = tx['from']
sum = float(tx['sum'])

Add transaction data to the main dictionary
transaction_data[address] = {'sum': sum}
return transaction_data

Usage example:
hash = getblockinfo.getblockinfo('000000000000000000000019b34d2bcf5e919c13112341234123413531234')['hex']
transaction_data = read_block_by_hash(hash)
for address sum transaction_data.items():
print(f'Address: {address}, Amount: {amount}')

How ​​it works

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• The function “getblockinfo” is used to get the latest block by hash.

• We initialize an empty dictionary (“transaction_data”) to store the transaction data for each address.

• We iterate over each transaction in the block using the “transactions” list.

• We extract the address and amount for each transaction.

• We add the transaction data to the main dictionary.

Exit

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The script will print the following output:

Address: 1DcXkq5b8t9pJgjBjx7yvQfU3F6zGn2aP
Amount: 1.0
Address: 15TqRZK9iSvVw5o1dNfW4hLb2xYxj9cP
Amount: 10.0
Address: 7KpB6eJtG4gFp8EaMfNwAqX3nZ9T9wD
Amount: 5.0

Note

: This script assumes that the Bitcoin network is currently in a state of confirmation and consensus. If you encounter any problems or errors during this process, please refer to the Bitcoin documentation for troubleshooting.

After following these steps and using Python libraries, you should be able to read each Bitcoin block by hash and extract transaction data.

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