thumb|300px|An amethyst stone from South Africa. Amethyste or Amethystos () is supposedly a nymph in Greek mythology who was turned into a precious stone by the goddess Diana/Artemis in order to avoi
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe552eafeeaaa5cdff4454b2b76d29d5339d8a6fa5edd78ef43d64cca2f1b291b. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/536be350-f77f-4b6a-9b49-c3a44d42af2a.json and https://artists.proofprofile.net/proofs/artist/536be350-f77f-4b6a-9b49-c3a44d42af2a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).