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 0x329a15f31caaa9724a696d735652023b0b49cf95f4baf2f9ebba67c5c38e3b63. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/287cf2b3-ed71-4a81-98e8-b798291cfee7.json and https://artists.proofprofile.net/proofs/artist/287cf2b3-ed71-4a81-98e8-b798291cfee7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
In Aphrodite (Original Motion Picture Soundtrack)
Goloka (Original Motion Picture Soundtrack)
A Winter Rose (Music from the Motion Picture)