{"algorithm":"Ed25519","canonicalization":"JSON con chiavi ordinate (sort_keys), separatori compatti (',' ':'), ensure_ascii","payload":{"verdict_id":404,"claim_id":417,"claim_text":"Our 9 billion pound deal with Rolls-Royce to bolster our fleet of nuclear submarines... creating more than a thousand jobs and safeguarding 4,000 more.","label":"vero","confidence":0.93,"explanation":"The £9 billion 'Unity' contract with Rolls-Royce Submarines (announced January 2025) covers the nuclear reactors powering the Royal Navy's submarine fleet. The MoD stated it creates more than 1,000 UK jobs and safeguards 4,000 more, matching the figures cited.","sources":[{"url":"https://www.gov.uk/government/news/landmark-9-billion-contract-for-british-business-to-boost-jobs-growth-and-nuclear-deterrent","ente":"GOV.UK / Ministry of Defence","titolo":"Landmark £9 billion contract for British business to boost jobs, growth and nuclear deterrent","estratto":"£9bn Unity contract with Rolls-Royce creating more than 1,000 UK jobs and safeguarding 4,000 other roles."}],"issued_at":"2026-07-01T07:58:34+00:00"},"signature_b64":"4sz1InDDmUH0OjcIpRhdu8HyiWka7OBDrJkx05g98dBIyTFXqL85hX3g0Uduyebt2Zce6l0oSM4GMEf+bLHNCg==","public_key_hex":"1719e2638a2cc0ec8d552d71dca52197f934e0a66b17e6364f1eed7a1d428e01","note":"Verifica offline: ed25519_verify(public_key, base64decode(signature_b64), canonical_json(payload))."}