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 0x167b3bdafcfd57dee427d1379fcbf92c4e9ac79d7f51afb2bce6814155bc28bf. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3dafb4ed-5287-4cea-b57c-9d6f280e245d.json and https://artists.proofprofile.net/proofs/artist/3dafb4ed-5287-4cea-b57c-9d6f280e245d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Neon Garden: EDC Mexico 2020 Compilation