Blockchain is decentralized technology system that records transactions and securely cryptographi. Each block contains a number of transactions that are verified and validated by a peer-to-peer network.
Blockchain technology in the cloud is refers to the use of blockchain technologi in a cloud computing environment. It enable distributed storage and process data of blockchain via a cloud infrastructure, providing advantages in terms of security, transparency, and scalability.
By using the cloud, access to blockchain nodes can be expand globally, while the distributed cloud infrastructure provides resilience to local system failures.
You have to write simple code blockchain on visual studio code or notepad 1st like code below:
import json
from datetime import datetime
from hashlib import sha256
class Blockchain(object):
def _init__(self):
self.chain = []
self.chain.append(self.new_block())
def new_block(self):
block = {
'timestamp' datetime.now().isoformat(),
'prev_hash': self.chain [-1]["hash"] if len(self.chain)>0 else None,
'nonce': len(self.chain)
}
block["hash"]=sha256(json.dumps(block).encode()).hexdigest()
return block
def proof_of_work(self):
while True:
new_block = self.new_block()
if new_block["hash"].startswith("0000"):
break
self.chain.append(new_block)
def get_block_count(self):
return len(self.chain)
bc = Blockchain()
bc.proof_of_work()
Then login SSH like below
After login, create a new folder then enter to that new folder. Then create blockchain.py file using nano editor teks then paste code that was create before and save it.
root@not-3:-# mkdir notyourkeynotyourbtc
root@not-3:-# cd notyourkeynotyourbtc/
root@not-3:-/notyourkeynotyourbtc# nano blockchain.py
If want to show json data use the following command:
print(json.dumps(bc.chain, indent=4))
If want to show blockchain data use the following command:
print("amount of blochcain data", bc.get_block_count())you can run blockchain.py after success created it. Output file you got from json data and amount data from blockchain
root@not-3:~/notyourkeynotyourbtc# python3 blockchain.py
[
{
"timestamp": "2024-10-15T19:35:43.065206",
"prev_hash": null,
"nonce": 0,
"hash":
"0efaec636d1c6a553d8139c82f40677249715a03a43ea93ed2081belbfc4e804"
},
{
"timestamp": "2024-10-15T19:35:43.089915",
"prev_hash":
"0efaec636d1c6a553d8139c82f40677249715a03a43ea93ed2081belbfc4e804",
"nonce": 1,
"hash": "00008e23dadfaa45e2e4e20b4eccaaaleab091b9060875ce32a33def4a0a9292"
}
Number of data on the blockchain: 2
root@not-3:~/notyourkeynotyourbtc#
Just simple like that
You deserve it though.
