Rap City, also known as Rap City: Tha Basement from 1999 to 2005, is a music video television program block that originally aired on the Black Entertainment Television (BET) network from August 11, 19
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 0xb3c81c0efa9a0934c81d9473eff32ea777c68f7143090e047c37c220d695b27a. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c69c2b7d-fc8a-4749-9d4e-10873ffbe326.json and https://artists.proofprofile.net/proofs/artist/c69c2b7d-fc8a-4749-9d4e-10873ffbe326.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Exclusive Beats (Chronological, Reverse)