The Factom blockchain is a decentralized publication protocol for building record systems that are immutable and independently verifiable. It enables secure storage of digital proofs for data provenance and integrity solutions without disclosing private data or requiring trusted intermediaries. Unlike other public blockchains, Factom uses a distributed ledger architecture that allows related entries to be linked chronologically in a chain for more efficient storage and retrieval. Entries can contain any kind of data, but are not intended for storing private data. Entry data is hashed before being written into an entry block, and the actual entry data is stored in distributed hash tables and shared peer-to-peer.

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