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 0x08a416597ca6b628e26f935d5b8e5ccf508d0fe927129da46051ba6a0c77324e. Chain 2 (Bitcoin): anchored in block 953936 (2026-06-16T11:24:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1fde0d04-ab31-4f7b-9cd2-d5c24130ddcf.json and https://artists.proofprofile.net/proofs/artist/1fde0d04-ab31-4f7b-9cd2-d5c24130ddcf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Iced Out - Flawless (2021 Remastered Version)