Fernandão is a hypocorism of the name Fernando, and means "Big Fernando" or "Fernando Sr." in Portuguese. People named Fernandão include: Fernandão (footballer, born 1978) (1978–2014), full name Fern
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 0x6dfb7690d6d142cb514335126c8911b86f4844834a5784f959339ec825319d05. 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/9403b805-24d9-459f-a462-6edcb75bb20d.json and https://artists.proofprofile.net/proofs/artist/9403b805-24d9-459f-a462-6edcb75bb20d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).