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 0x325ea5d13dcfd2a16e8b632a72bbc47a72ab976ef1828c49b1cc44543c2655de. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2995799a-3961-41c0-8685-de1afe10e684.json and https://artists.proofprofile.net/proofs/artist/2995799a-3961-41c0-8685-de1afe10e684.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Make It Knock 4 (Lo-fi Instrumental Edition)