thumb|306x306px|The regional location of the Bessi, in the Rhodope and North-West of the Dii tribe. The Bessi (; , or , ) or Bessae,The wines of Bulgaria, Romania and Moldova. p. 12. were a Thracian
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 0xb4801a2ddf04ac33dcadb3417ed8b8e4546788b54507ce19fa767a5a8aa5f8ec. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e5e39991-c88b-4748-b6ef-384fe207696e.json and https://artists.proofprofile.net/proofs/artist/e5e39991-c88b-4748-b6ef-384fe207696e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).