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A blockchain is a distributed ledger where each block contains data, a timestamp, and a cryptographic hash linking it to the previous block. This simulator lets you build your own chain block by block, watching the hash chain update live. Alter any block's data and observe how tampering invalidates every subsequent link, demonstrating the immutability that makes blockchains trustworthy.
blockchain · cryptographic hash · distributed ledger · proof of work · immutability · nonce
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