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 0x010e4e12911ba0682d26b88dc1e3fbd105da2f9d5b61eac3e5adf377e539be53. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cff60c8d-500d-4a01-861d-3f44c3bd62ce.json and https://artists.proofprofile.net/proofs/artist/cff60c8d-500d-4a01-861d-3f44c3bd62ce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Disco Brother - Daniel Jaeger & Joseph Disco Remix