Interactive Experiment: Edit any transaction amount or sender below in Block #2. Watch the SHA-256 hash immediately change, invalidating its signature and breaking the previous-hash link across all subsequent blocks (#3, #4, #5). Click Mine to compute a valid Proof-of-Work nonce!
🌳 Merkle Tree Root Inspector (Selected Block: #1)
Transactions in a block are cryptographically combined pairwise into a binary Merkle Tree. Any single modified byte alters the top Merkle Root hash.
🌐 3-Node Distributed Network Matrix
Peers evaluate the longest valid chain with the most accumulated Proof of Work. Tampered chains are rejected during peer synchronization.