Ovanir Buosi is a Brazilian clarinetist. He plays with the São Paulo State Symphony Orchestra. Early life and education Buosi was born in São Paulo, Brazil. He studied with Sergio Burgani at the Sã
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 0xfa7403c9fdd30d291e84d98eb3c3788c123a6a9e0252a8ca158dccc6874f9932. 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/81eeab77-9f82-473a-b01d-035a3658a916.json and https://artists.proofprofile.net/proofs/artist/81eeab77-9f82-473a-b01d-035a3658a916.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).