1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0xac8f5da9792942b897f39957f2b10b937ed9abdb4ecb7b4460598aec280ac39b. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9b3638d0-efdf-4476-8b63-ffb27e42ed31.json and https://artists.proofprofile.net/proofs/artist/9b3638d0-efdf-4476-8b63-ffb27e42ed31.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Stop Remixing the Age of Love (Craze Meets Marty at the Offies Mix)