226x226px|thumb|A single-breasted, reefer-style, navy blue blazer, dressed with brass buttons thumb|right|250px|A patch logo blazer from historic Ivy style retailer J. Press A blazer is a distinct t
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 0x048a4a5779449f26a9a18c80680ee436bd5cd888b40ccfe998b6aac2bc5646da. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/92a5276d-bfc6-4932-8b28-09216c601e29.json and https://artists.proofprofile.net/proofs/artist/92a5276d-bfc6-4932-8b28-09216c601e29.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).