Challenge
Prove integrity without depending on a public blockchain.
Cryptography · 2022
CryptoLedger
Hash-chain immutable ledger for integrity proofs
1 min read · Updated 18 Aug 2026
SHA-256 chain
Preuve
Overview
Integrity ledger: each record seals the previous one by hashing (SHA-256 chain), producing verifiable proof a document was not altered since its date. Exportable proof (root hash + path) verifiable offline.\n\nLaravel + Rust hashing service, public verification UI.
Solution
SHA-256 hash chain + public root + local verification.
Outcome
Lightweight, verifiable integrity proof.
