Vertú is a jazz fusion band consisting of bassist Stanley Clarke and drummer Lenny White (both of Return to Forever fame), keyboardist Rachel Z, violinist Karen Briggs and guitarist Richie Kotzen. 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 0x8046fb5b666adcb1188aa87b5118937c47b56a785531ee13bc8b35c483f1eedc. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a73e9b7d-83b5-4d86-9c6f-c416cfaea43d.json and https://artists.proofprofile.net/proofs/artist/a73e9b7d-83b5-4d86-9c6f-c416cfaea43d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).