thumb|250px|A bog in Lauhanvuori National Park, Isojoki, Finland thumb|250px|Peat bog and peat to dry, L'Isle-aux-Coudres, Quebec, Canada, 1976 thumb|Bog in Antwerp Province, Belgium thumb|Bog in th
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 0xb98eb1b5898d634b984ed8e3243a9dfbdb531234b3e18860ea9c7ce7e1b3db79. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/26edd7b5-16dd-474d-ab34-f4462842560d.json and https://artists.proofprofile.net/proofs/artist/26edd7b5-16dd-474d-ab34-f4462842560d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).