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 0xd77d24996205e54178da72f0756fec5c4fc66621568c085df4df3292010197c8. 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/8c8b6912-cb9c-42f1-b423-df004fd1d349.json and https://artists.proofprofile.net/proofs/artist/8c8b6912-cb9c-42f1-b423-df004fd1d349.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hit the Surf 2 (Original Soundtrack from the 1967 ABC-TV Special) [Mono]