João Carlos Silva Reis (born 24 June 1992) is a Portuguese footballer who plays for Portimonense as a defender. Football career On 27 July 2013, Reis made his professional debut with Farense in a 201
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 0xf2e194390e29004a6947d1dba8f0808ae7864c4d4c4ef36765a983237900609d. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/429e8628-4af8-4816-99c8-80de3237a7e7.json and https://artists.proofprofile.net/proofs/artist/429e8628-4af8-4816-99c8-80de3237a7e7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).