1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x0426f13efd09e7ba2fdb707d1b1251bfa9ff2cd8f1e9dc23392c4a31a2b889de. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f00aa708-b967-42c7-b248-0a32ad37cb98.json and https://artists.proofprofile.net/proofs/artist/f00aa708-b967-42c7-b248-0a32ad37cb98.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).