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 0xdbc2808ca3e6e0ef5d97d69c717d1a8d459ee18c61fd05606c11b04e24f014e8. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f3105860-586a-4e42-b6cf-932141a14b08.json and https://artists.proofprofile.net/proofs/artist/f3105860-586a-4e42-b6cf-932141a14b08.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
We Know The Devil (Original Video Game Soundtrack)
Heaven Will Be Mine (Original Video Game Soundtrack)