Diogo Álvaro Ferreira Moncorvo, known professionally as Baco Exu do Blues (born 11 January 1996), is a Brazilian rapper, singer, and composer. He rose to prominence in the Brazilian rap scene with his
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 0xc903c98fd8213cbfe94363d3453f56ac282a5e2cf8cebb35c0f1d0b630fefaf4. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/884c8eaa-2cca-446e-b092-c489ac8d7719.json and https://artists.proofprofile.net/proofs/artist/884c8eaa-2cca-446e-b092-c489ac8d7719.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).