The Urban Sophisticates are a hip-hop group from Greensboro, North Carolina formed in 2002. The group consists of 7 members: Benton James - MC, Aaron James - Vocals, Jeremy Denman - Trumpet, Sal Masca
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 0xc8276b3f5c6f6e1747c5c48b027652e7c070200a733337c65f9c0ab0c86e02bf. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cadcfd84-0fc1-4b0f-b5a4-41477724f759.json and https://artists.proofprofile.net/proofs/artist/cadcfd84-0fc1-4b0f-b5a4-41477724f759.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).