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Cryptographic proof of integrity for any data

Tamper-evident data anchoring

Make data tampering
impossible to hide.

AeternisLog anchors a cryptographic fingerprint of every record on a permissioned blockchain, so any change is mathematically detectable.

Integrity check VALID
on-chain root 20e1a987…0e7310c
recomputed 20e1a987…0e7310c

Recompute the root from the data and it matches the chain. Change one byte and it never will.

anchored on Fabrictx 1d96e697…970398

From a record to a proof anyone can check

  1. Record Any JSON payload
  2. MongoDB Fast, queryable
  3. Merkle root One hash per batch
  4. Anchor on Fabric Write-once
  5. Verify Recompute vs chain

Tamper-evidence is structural, not a promise

Records are hashed with a length-prefixed, domain-separated scheme and folded into a Merkle tree. The root is anchored write-once on Hyperledger Fabric. Alter one byte and the recomputed root no longer matches the chain.

The cryptographic design

Ledger-enforced isolation

The chaincode keys batch state by the caller's signed identity, so one tenant can never read or overwrite another's.

Trustless SDKs

Go and Python SDKs recompute hashes and roots locally, so integrity is verifiable without trusting the server.

Built for auditable systems

Compliance & audit

Prove to a regulator that audit records are complete and unaltered, on an independent ledger.

Supply chain

Anchor chain-of-custody events so every party verifies provenance without a central operator.

Financial & legal

Give contracts, ledgers, and statements a timestamped proof that holds up independently.

Security logs

Make tamper-evident logs the default, so a breach can't quietly rewrite history.

Open core, enterprise-ready

The Community edition is the full self-hostable platform. Enterprise adds per-tenant ledger isolation, production datastores, and support.