Matheus França de Oliveira (born 1 April 2004) is a Brazilian professional footballer who plays as an attacking midfielder or forward for Vasco da Gama, on loan from Crystal Palace. Club career Early
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 0xf803033fc0f2bbefbdcce714cddc6870127c21278324a299a1cfa9c0eeabdb76. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/daa4a50f-e4d0-43d8-b542-c1d0d0704682.json and https://artists.proofprofile.net/proofs/artist/daa4a50f-e4d0-43d8-b542-c1d0d0704682.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).