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 0xf69a52d1cdf816bfd6e0f3001d60a21ae55e7c1abc15320b9a0e7b55a3956648. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/06ea6d28-3aaa-4fee-b1a9-3d0f59be8fc2.json and https://artists.proofprofile.net/proofs/artist/06ea6d28-3aaa-4fee-b1a9-3d0f59be8fc2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).