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 0x2bfc73afb92eef3ff540ac825fad32cf50fbba6a3fda2c3931cbca6142130469. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9da32a6a-a14f-4f89-b8dc-f717b6723ca3.json and https://artists.proofprofile.net/proofs/artist/9da32a6a-a14f-4f89-b8dc-f717b6723ca3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Guillaume Tell, Act IV, Scene 1: "O muto asil"
Guillaume Tell, Act IV, Scene 2: "Corriam, voliam"