Alberto Facundo "Tino" Costa (born 9 January 1985) is an Argentine former professional footballer who played as a midfielder. Club career Early career Costa, commonly known as Tino, began his career
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501161e4ab8df469f638189af169339e8f6a6387716bd4b98f05570f8a082e1f. Chain 2 (Bitcoin): anchored in block 954038 (2026-06-17T02:57:22Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3e3b0634-9c5c-4616-b286-a474d2e954da.json and https://artists.proofprofile.net/proofs/artist/3e3b0634-9c5c-4616-b286-a474d2e954da.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A coelhinha Tolinha e seus amigos virtuais (Integral)
De Portugal com amor * From Portugal with love