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 0x20da60277b2f68f2228b9407eae8271a3b796b4411ec3a1bd1554636ac6be78e. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/913d5527-3e9a-4227-88c7-65f2303ed2fa.json and https://artists.proofprofile.net/proofs/artist/913d5527-3e9a-4227-88c7-65f2303ed2fa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Undeniable Truth (feat. Rich Medina)
Mehandhi (Original Motion Picture Soundtrack)