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 0xb87be09a2d20ec7daef98d6716e6e92e610ddaaff4dd7403d5fed3b7e1414ad5. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/73c2a6ca-0b38-4f1c-84ad-0d5a90fee7f2.json and https://artists.proofprofile.net/proofs/artist/73c2a6ca-0b38-4f1c-84ad-0d5a90fee7f2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dinheiro (feat. Facção Central, Doctor X & Negredo)