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 0x4c95b322a35d4d42b573442554363f25bd8106b16c6bdd5a759b9d9425ac11bb. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99b563a8-086b-4a01-a07a-38a5fbdd0dd6.json and https://artists.proofprofile.net/proofs/artist/99b563a8-086b-4a01-a07a-38a5fbdd0dd6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Orkney: Symphony of the Magnetic North (Bonus Track Version)