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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d8b474149e6dcd46dd7304f96fc08e03c0721c914752ef6f2fc2dd44fcff3c. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ef68bba7-cd21-4d65-9070-d58f007bed60.json and https://artists.proofprofile.net/proofs/artist/ef68bba7-cd21-4d65-9070-d58f007bed60.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Warcraft, Might and Magic excerpts & more: The Original Orchestra Recordings
Fat Doggie II (How Much Is That In Dog Years?)
Alexa Original Motion Picture Soundtrack
My Brother Jack (Original Motion Picture Soundtrack)
My Brother Jack (Original Motion Picture Soundtrack) Bonus Tracks
Mulberry Rain (Mick Morrison Remastered)
21st Century Picnic (Mick Morison Remaster)
Music for the TV series CRACKER (TV soundtrack)
I Need My Love to be Here (String Orchestra Version)
Palisades Apocalypse (Bernie Grundman Studios Remaster)
Fat Doggie Cello Concerto & Small Ensembles Collection
Warcraft, Might and Magic excerpts & more: The Original Live Orchestra Recordings (Original Game Soundtrack)