Kevin Nascimento Bueno (29 April 1998 – 16 May 2021), better known by his stage name MC Kevin, was a Brazilian singer of funk carioca and trap, addition to his solo songs, Kevin has a list of collabor
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 0x516000087931c29e22c05925d1311e519981b0da04f7f407c445cebe08a87a48. 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/93da8ba6-50c1-49ce-a91b-db39e83c46d0.json and https://artists.proofprofile.net/proofs/artist/93da8ba6-50c1-49ce-a91b-db39e83c46d0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).