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  Classes of Scott Arciszewski   PHP Blake Chain   Download  
Role: Documentation
Content type: text/markdown
Description: Documentation
Class: PHP Blake Chain
Create and verify chained blocks of hashed data
Author: By
Last change:
Date: 4 years ago
Size: 1,310 bytes


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Blakechain is a simple hash-chain data structure based on the BLAKE2b hash function.


  • The `Blakechain` implementation, which chains together `Node` objects
  • A runtime `Verifier` class that validates the self-consistency of an entire chain (or a subset of an entire chain)

Blakechain is not a blockchain. You probably don't need a blockchain.

Blakechain provides the data structure used in Chronicle.

How Blakechain Works

The hash of each message is a keyed BLAKE2b hash, where the key of this message is the hash of the previous message.


$hash[$n] = sodium_crypto_generichash(
    $hash[$n - 1]