Blockchain Visualizer

Mine blocks, tamper with data, and see the chain break. An interactive proof-of-work demonstration with Merkle trees and peer consensus.

Difficulty:2 (00x)

Presets:

New block data (one transaction per line):

Edit a block's data to see the tamper-detection cascade. Adjust difficulty to control mining time. All hashing uses SHA-256 via Web Crypto API, entirely in your browser.