Artist of the Year is a television competition shown on the Sky Arts channel (formerly known as Artsworld and Sky Arts 1) which aims to find the best portrait and landscape artist every year. Overvie
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 0xb3f96a1840eae046139fb579ca49f02f0da41ef619bdeaf9daa0ff744ad6aa3b. Chain 2 (Bitcoin): anchored in block 953819 (2026-06-15T18:31:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ff6643d5-114e-4453-9542-e1de0c585072.json and https://artists.proofprofile.net/proofs/artist/ff6643d5-114e-4453-9542-e1de0c585072.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).