SUUNA

BLOCK CHAIN

import hashlib import time class Block: def __init__(self, index, previous_hash, timestamp, data, nonce=0): self.index = index self.previous_hash = previous_hash self.timestamp = timestamp self.data = data self.nonce = nonce self.hash = self.calculate_hash() def calculate_hash(self): block_string = f"{self.index}{self.previous_hash}{self.timestamp}{self.data}{self.nonce}" return hashlib.sha256(block_string.encode()).hexdigest() def mine_block(self, difficulty): target = '0' * difficulty while self.hash[:difficulty] != target: self.nonce += 1 self.hash = self.calculate_hash() print(f"Block mined: {self.hash}") class Blockchain: def __init__(self, difficulty=4): self.chain = [self.create_genesis_block()] self.difficulty = difficulty def create_genesis_block(self): return Block(0, "0", time.time(), "Genesis Block") def get_latest_block(self): return self.chain[-1] def add_block(self, new_block): new_block.previous_hash = self.get_latest_block().hash new_block.mine_block(self.difficulty) self.chain.append(new_block) def is_chain_valid(self): for i in range(1, len(self.chain)): current_block = self.chain[i] previous_block = self.chain[i - 1] if current_block.hash != current_block.calculate_hash(): print("Current block hash is invalid!") return False if current_block.previous_hash != previous_block.hash: print("Previous block hash is invalid!") return False return True # Example usage blockchain = Blockchain() print("Mining block 1...") blockchain.add_block(Block(1, "", time.time(), "Block 1 Data")) print("Mining block 2...") blockchain.add_block(Block(2, "", time.time(), "Block 2 Data")) print("Mining block 3...") blockchain.add_block(Block(3, "", time.time(), "Block 3 Data")) # Print the blockchain for block in blockchain.chain: print(f"Block {block.index} [Hash: {block.hash}, Previous Hash: {block.previous_hash}, Data: {block.data}]") # Check if the blockchain is valid print("Is blockchain valid?", blockchain.is_chain_valid())

Tuesday, July 15, 2008

SUUNA

SUUN NA

Everything in life is temporary...

Darkness of the night or brightness of the day.

Even sunrise is temporary... And so is sunset.

Everything just passes by...
But the Love of God remainz!!!

see, what a wonderful and happy couple are they (with blancket)

Ka it mama Ka Pi Chingkang tuni Dt.15/07/2008 in tami leitung nuasie in ahing peisanta hi. Tuni'n kei leh ka Innkuon te Delhi khopi a, a nuasie Atu-Atate leh A It mama a Pasal Ka Pu Khupsuanpau, Kullian Hausapu ka suunpi na uh lientah ka thon uhi.

I bieh Pa Pasien in HAMUONNA hing pe ta hen. AMEN

Ke_eS is here for you

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Tuesday, July 15, 2008

SUUNA

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