Chris Barbosa (October 22, 1961 – October 18, 2024) was an American freestyle music producer from New York. Career 1980s and 1990s In 1983, Bronx-born Barbosa served as a reporting DJ for New York's
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 0x27a2656ac56719ef91c70920505f33d196f79c641f63f3f0e77e55de22e49347. Chain 2 (Bitcoin): anchored in block 954039 (2026-06-17T03:00:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3e281ce1-12bc-41ee-bc4a-a7e607ff523b.json and https://artists.proofprofile.net/proofs/artist/3e281ce1-12bc-41ee-bc4a-a7e607ff523b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sexy Bo É (feat. Passada Barbosa & Tony Medina)