Giuseppe Rizzo (born 18 March 1991) is an Italian footballer who plays as a midfielder for Serie D club Locri. Club career He started his career in Serie B with Reggina, debuted for the club on 26 No
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 0x7427a3dcb60d3bb4d2db8dbeff5b75a57b220ee029d5df56a3f2e39825468176. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/96dcb9dc-8e23-469d-b8f9-2c9a95c562b2.json and https://artists.proofprofile.net/proofs/artist/96dcb9dc-8e23-469d-b8f9-2c9a95c562b2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).