thumb|200px|Bob Cratchit, the clerk of Ebeneezer Scrooge in A Christmas Carol by Charles Dickens. thumb|right|Two Women's Royal Naval Service clerks aboard during World War I A clerk is a white-colla
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 0xa0df824997605aace74f93c322a00f3bb973767dea29379c64dfbd92f7c7183d. Chain 2 (Bitcoin): anchored in block 953930 (2026-06-16T10:36:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d984c27-5b4c-4326-bba5-994fadc115e0.json and https://artists.proofprofile.net/proofs/artist/1d984c27-5b4c-4326-bba5-994fadc115e0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).