Bruno Venturini (; 26 September 1911 – 7 March 1991) was an Italian footballer who played as a goalkeeper, and who competed with Italy in the 1936 Summer Olympics in Berlin. Career Born in Carrara, V
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 0xb72164cd449b19b08d85af882972cb1153f36944e09be9d2bc5b21ae5c39efaf. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e5d3aebe-d4e0-4477-8a23-b64333d79039.json and https://artists.proofprofile.net/proofs/artist/e5d3aebe-d4e0-4477-8a23-b64333d79039.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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