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 0x8634e8a6e51ffcf8d96125821640accbc5a4d2e1e5a0d2fbcb234384d6a96547. 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/e07a7cf7-2132-4181-91eb-7496bea1f9df.json and https://artists.proofprofile.net/proofs/artist/e07a7cf7-2132-4181-91eb-7496bea1f9df.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).