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SOSNA Verify

Public proof layer for certified gemstones.

The SOSNA Verify portal will let anyone confirm that a certificate, custody record or audit event existed at a precise moment in time and was never altered — anchored to a public blockchain.

Public Certificate Verification

Verify any SOSNA Exchange certificate

Select the laboratory and enter the certificate number. We show the lab cross-check link, SHA-256 file hash, and blockchain anchor — without any personal data.

  • File hashes for certificates, photos, videos and custody records.
  • Hash-chained audit events with prev-hash verification.
  • Daily Merkle root anchored via OpenTimestamps to Bitcoin.
  • Privacy-safe: no personal data, no prices, no contracts on chain.

How it works

Three steps to verifiable proof.

  1. 01

    File hash

    Each certificate, photo, video and custody record is hashed at intake.

  2. 02

    Audit chain

    Events are linked by previous-hash, creating a tamper-evident audit trail.

  3. 03

    Anchored daily

    A daily Merkle root is anchored via OpenTimestamps to Bitcoin.

Zero personal data

We publicly expose only technical and cryptographic data. Buyer and seller identities are never part of the public verification.