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 0xdfeb6434d0dc258075d7361b74584967e355755a0591d399d83a18e78b0b1342. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c46ff0dd-2e3f-42ab-9c33-1c7785ab81c8.json and https://artists.proofprofile.net/proofs/artist/c46ff0dd-2e3f-42ab-9c33-1c7785ab81c8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cafe on Sale (Original Motion Picture Soundtrack)
Broken (Original Motion Picture Soundtrack)
Once Upon A Time (Original Motion Picture Soundtrack)
Ashraf (Original Motion Picture Soundtrack)
Entangled Theme (Original Motion Picture Soundtrack)