Bruno Miguel de Azevedo Gaspar de Carvalho (born 8 February 1972) is a Portuguese businessman, sports commentator and DJ who was the 42nd president of sports club Sporting CP from 2013 to 2018. He bec
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 0x47b174f9c0ccb0ca1b4cde84b04b3fc70f36ea96e2e71a95846a6aab2bd59f25. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f2411479-4180-4b4c-b468-1ac2ead99b8e.json and https://artists.proofprofile.net/proofs/artist/f2411479-4180-4b4c-b468-1ac2ead99b8e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).