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 0x00fecc926157b626047df2288c26f7f71d20ac9b6f0efe91c7528fb273dc9722. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e94a2576-62ab-4a0f-9bf5-9f4ae9b9c92b.json and https://artists.proofprofile.net/proofs/artist/e94a2576-62ab-4a0f-9bf5-9f4ae9b9c92b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Summer Knight (Original Motion Picture Soundtrack)
Railway Heroes (Original Motion Picture Soundtrack)