Luiz Gonzaga do Nascimento (standard orthography 'Luís'; ; December 13, 1912 – August 2, 1989) was a Brazilian singer, songwriter, musician and poet and one of the most influential figures of Brazilia
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 0x4047815f2906b4400aebafb7fe2e6f375778e2b8801ed2ffaf3f177092357474. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f9f84d04-82f4-4e2e-838a-5dc3437caee3.json and https://artists.proofprofile.net/proofs/artist/f9f84d04-82f4-4e2e-838a-5dc3437caee3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).