Carlos Alberto Valderrama Palacio (Colombian Spanish: ; born 2 September 1961), also known as "El Pibe" ("The Kid"), is a Colombian former professional footballer and sports commentator for Fútbol de
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 0x3444a3c9bbba84424ddd040e82405b678414b9a98343c78e7d4242487cdeeb0e. Chain 2 (Bitcoin): anchored in block 953875 (2026-06-16T02:12:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/076f3c67-f150-4b72-b798-653e02faf0fe.json and https://artists.proofprofile.net/proofs/artist/076f3c67-f150-4b72-b798-653e02faf0fe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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