Gabriel Airton de Souza (born 29 March 1996), known as Gabrielzinho, is a Brazilian professional footballer who plays as a winger for Chinese Super League club Shanghai Port. Career Linense Gabrielz
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 0x4b064dc27dbb76669bffe064b0f05a722b13573c33d584886e877c90a652bd7a. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e4145e61-c62f-4103-a4a9-3bd29e1559c5.json and https://artists.proofprofile.net/proofs/artist/e4145e61-c62f-4103-a4a9-3bd29e1559c5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).