F.A.S. Fermes Ali Sfar

Radical transparency

The F.A.S. public production ledger

Every production event of every lot is cryptographically chained. This page exposes the whole ledger — anyone can download it, recompute it, and check it against the Bitcoin blockchain. No trust required.

…production lots
…chained records
…chain integrity

Merkle root of the entire ledger

One hash that commits to every record ever written. If any historical record changed, this root would change with it.

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Bitcoin anchoring — OpenTimestamps

The Merkle root is timestamped onto the Bitcoin blockchain through the free OpenTimestamps protocol. The proof can be verified by anyone, with open-source tools, without asking us anything.

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Verify everything yourself

  1. Download the full ledger snapshot:
    Download snapshot (JSON)
  2. Recompute each record: sha256(prevHash + JSON.stringify({lotId, type, ts, data})) must equal the record's hash, and each prevHash must equal the previous record's hash.
  3. Sort all event hashes, build the Merkle tree (pairwise sha256, odd leaf duplicated) and compare your root with the one above — then check the .ots proof against Bitcoin.