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 0x00cbba32471bb225a38edfb5ac39f41131cd4dfa35b67f3bfb81e56f82fa6118. 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/881bab10-7e4e-4c7a-aef5-9d7d43ef856c.json and https://artists.proofprofile.net/proofs/artist/881bab10-7e4e-4c7a-aef5-9d7d43ef856c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Inconmovible (Original Motion Picture Soundtrack)