thumb|upright=1.2|A man in Rhumsiki, Cameroon, attempts to tell the future by interpreting the changes in position of various objects as caused by a freshwater crab through the practice of nggàm. Div
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 0x38b17a83b29104f10ccbd159986b19e39adf60bde3ef5c1156011866ca8df689. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a509df95-7a22-4fe9-8984-128fde7c2125.json and https://artists.proofprofile.net/proofs/artist/a509df95-7a22-4fe9-8984-128fde7c2125.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).