Vance Powell is an American six-time Grammy Award winning record producer, engineer and mixer. His credits include Phish, Chris Stapleton, Jack White, Tyler Bryant & The Shakedown, The Raconteurs, The
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 0xef4719efffbf7f60c66ac09d5a0cc56ff1cbe14d29233d798e681359998b85e5. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d28169bd-3a98-4eb8-b8d9-188ebd3ff1a9.json and https://artists.proofprofile.net/proofs/artist/d28169bd-3a98-4eb8-b8d9-188ebd3ff1a9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).