1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba7bf9964fd7f9cfa7ca2a3c7dda3b8f9af8c43d0de43aa11f86bbff9fbcfbe6. Chain 2 (Bitcoin): anchored in block 953617 (2026-06-14T09:00:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1bbcff76-230e-4b72-99cd-99ee869fa152.json and https://artists.proofprofile.net/proofs/artist/1bbcff76-230e-4b72-99cd-99ee869fa152.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Moment: Pt 1 (Original Motion Picture Soundtrack)
The Devil and the Daylong Brothers (Original Score)