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 0xf8c3597374c2104695a91b906cbfa356962472c248903eff3b4878262bbe9563. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2258cc93-1628-4f91-9216-8dfdec27c084.json and https://artists.proofprofile.net/proofs/artist/2258cc93-1628-4f91-9216-8dfdec27c084.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Put Yo Hands Wea My Eyes Can See(Freestyle)