Luca Antonio Barker (born 17 August 1994), known professionally as Sick Luke, is an Italian record producer and beatmaker. Career Sick Luke, son of rapper Duke Montana, has been involved in music fro
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 0x5b7593305fd560bdcc247ae53d03d543f98322fdb8e18c089fb8981d67f27dae. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e55096a9-dfa3-40ba-a783-6d9eb5b1249f.json and https://artists.proofprofile.net/proofs/artist/e55096a9-dfa3-40ba-a783-6d9eb5b1249f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).