José Mauro de Vasconcelos (February 26, 1920 – July 24, 1984) was a Brazilian writer. Biography José Mauro was born in Rio de Janeiro on February 26, 1920. His family was very poor, and when he was
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 0x825c0b949ef30b5dd06a34c476d1887793446f221b8659a9f8b6bbc484241812. 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/9332dbd7-8e66-4a3e-9707-36a8687749e3.json and https://artists.proofprofile.net/proofs/artist/9332dbd7-8e66-4a3e-9707-36a8687749e3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).