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 0xd143150effc78ca63b99e9f11c5309210495dbd96381861446d207d26aedda1a. 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/edb292c5-bbe7-46ea-b04f-9705dbf69b95.json and https://artists.proofprofile.net/proofs/artist/edb292c5-bbe7-46ea-b04f-9705dbf69b95.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Relax and Run (feat. Erika de Casier & Eva Tolkin)