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 0x54af527df1acaca378a3bf32b1c7d7dcb86d35c67c00f8fdcb2054c45203c185. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1a898cd0-a988-4b95-b4e5-6c1aaefefe3b.json and https://artists.proofprofile.net/proofs/artist/1a898cd0-a988-4b95-b4e5-6c1aaefefe3b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
See You Again (Okay, Okay, Okay, oh) [Sped Up]