The Trackmasters, also known as Poke & Tone, is an American hip hop production outfit composed of Poke (Jean-Claude Olivier born January 21, 1970; Brooklyn, New York ) and Tone (Samuel Barnes born Jan
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 0xa0af11f92c0786dba55f8c34b104ea476a1aafb9873bb04d1270e6c6cf21d65b. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9916d289-add1-45cd-9d16-dbad6d21be05.json and https://artists.proofprofile.net/proofs/artist/9916d289-add1-45cd-9d16-dbad6d21be05.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).