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 0x9d2381d95e31f941722054bbd98a2e17fe6997e2a683543301e5b442ebae0165. 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/655670db-0b58-4515-9e0f-ee77925f58a3.json and https://artists.proofprofile.net/proofs/artist/655670db-0b58-4515-9e0f-ee77925f58a3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
And After That, We Didn't Talk - The Remixes