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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de6063f59b350b2c5d9eb4a960f7dc146e2f6335f0245dcd8b5c5f7e551b06e. Chain 2 (Bitcoin): anchored in block 954019 (2026-06-16T23:44:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3606bb30-4bce-4281-8a83-9e2879b07456.json and https://artists.proofprofile.net/proofs/artist/3606bb30-4bce-4281-8a83-9e2879b07456.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
New level (feat. SHOWGA & FRANKIE PARIS)