Maria Fernandes may refer to: Maria Fernandes (Portuguese athlete) (born 1969), Portuguese Paralympic athlete Maria Fernandes (Brazilian athlete) (born 1960), Brazilian athlete in shot put Maria H
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 0x05a0d750f389290c5cf742c70ec7f62d3130932694e01bf5189b1e267bb20d3b. Chain 2 (Bitcoin): anchored in block 954502 (2026-06-20T05:07:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9c78c9b8-86fd-4c19-b95d-a9131091b511.json and https://artists.proofprofile.net/proofs/artist/9c78c9b8-86fd-4c19-b95d-a9131091b511.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).