generate a blockchain code using python

Matt maniego answered on October 28, 2023 Popularity 6/10 Helpfulness 1/10

answer generate a blockchain code using python

generate a blockchain code using python

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import hashlib
import time

class Block:
    def __init__(self, index, previous_hash, timestamp, data, hash):
        self.index = index
        self.previous_hash = previous_hash
        self.timestamp = timestamp
        self.data = data
        self.hash = hash

def calculate_hash(index, previous_hash, timestamp, data):
    value = str(index) + previous_hash + str(timestamp) + data
    return hashlib.sha256(value.encode()).hexdigest()

def create_genesis_block():
    return Block(0, "0", int(time.time()), "Genesis Block", calculate_hash(0, "0", int(time.time()), "Genesis Block"))

def create_new_block(previous_block, data):
    index = previous_block.index + 1
    timestamp = int(time.time())
    hash = calculate_hash(index, previous_block.hash, timestamp, data)
    return Block(index, previous_block.hash, timestamp, data, hash)

# Create the blockchain and add the genesis block
blockchain = [create_genesis_block()]
previous_block = blockchain[0]

# Add some new blocks to the blockchain
num_blocks_to_add = 5

for i in range(num_blocks_to_add):
    new_data = f"Block #{previous_block.index + 1}"
    new_block = create_new_block(previous_block, new_data)
    blockchain.append(new_block)
    previous_block = new_block
    print(f"Block #{new_block.index} has been added to the blockchain!")
    print(f"Hash: {new_block.hash}\n")

Popularity 6/10 Helpfulness 1/10 Language python

Source: chat.openai.com

Tags: blockchain generate python using

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Contributed on Oct 28 2023

Matt maniego

0 Answers Avg Quality 2/10

generate a blockchain code using python

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