Calculating the Hash Of Ethereum Block #502871
. In this article, we’ll explore how to calculate the hash of Ethereum block #502871.
What is a Block Header?
A block in a blockchain. It contains information that allows the network to verify and validate transactions. Each Block Header Has Several Important Fields:
hash: the sha-256 hash of the entire block.
.
Index: the index of the current block in the blockchain.
Calculating the hash
To calculate the hash of a block header, you’ll need to use a cryptographic algorithm. In this case, we’ll use sha-256 (Secure hash algorithm 256).
Here’s a step-by-step guide:
1.
2.
.
Here are some example implementations:
JavaScript
`JavaScript
Const blockheader = {
Result: {
// … Other Values …
},
Index: 502871,
};
// Convert Json String to Bytes
Const Blockbytes = Buffer.from (json.stringify (blockheader), ‘UTF8’);
// Calculate SHA-256 Hash Using OpenSSL Library
Const crypto = require (‘crypto’);
Const sha256hash = crypto.createhash (‘sha256’). Update (blockbytes) .digest (‘hex’);
Console.log (SHA256HASH);
`
Python
`python
import json
Hashlib import
blockheader = {
'Result': {
... Other Values ...
},
'Index': 502871,
}
Convert Json String to Bytes
block_bytes = json.dumps (blockheader, sort_keys = true) .encode ('UTF8')
Calculate SHA-256 Hash Using PyCrypto Library
From Cryptography.HazMat.Primitives Import Hashes
from cryptography.hazmat.primitives.Asymmetric Import Padding
Def calculate_sha256_hash (data):
Return Hashes.Sha256 (Data) .Digest ()
block_hash = calculate_sha256_hash (block_bytes)
Print (block_hash.hex ())
Conclusion
C. By following these steps
Remember to use with sensitive data. Happy Coding!
