{"algorithm":"Ed25519","canonicalization":"JSON con chiavi ordinate (sort_keys), separatori compatti (',' ':'), ensure_ascii","payload":{"verdict_id":401,"claim_id":414,"claim_text":"We froze fuel duty every year from 2011, and in fact, we cut it in 2022 because we care about the cost of living.","label":"vero","confidence":0.95,"explanation":"Main rates of fuel duty on petrol and diesel have not been increased since 2011, and Chancellor Rishi Sunak cut the rate by 5p per litre on 23 March 2022 (initially for 12 months). The claim of a first rise 'in 15 years' also follows from the freeze having held since 2011.","sources":[{"url":"https://commonslibrary.parliament.uk/research-briefings/cbp-10340/","ente":"House of Commons Library","titolo":"Fuel duty: Developments since 2022","estratto":"No increase in fuel duty rates since 2011; rate cut by 5p per litre in March 2022."},{"url":"https://commonslibrary.parliament.uk/research-briefings/SN00824/","ente":"House of Commons Library","titolo":"Taxation of road fuels","estratto":"Fuel duty rates have been frozen since 2011-12."}],"issued_at":"2026-07-01T07:58:34+00:00"},"signature_b64":"mf5N/2Vq9hltLhqOfugH2GYO15RHEP77j8nHvkdjLw1R4tAh3Y6We+qPd0hEtBbcFoQM1/5+u4zrFm5ZosnFAQ==","public_key_hex":"1719e2638a2cc0ec8d552d71dca52197f934e0a66b17e6364f1eed7a1d428e01","note":"Verifica offline: ed25519_verify(public_key, base64decode(signature_b64), canonical_json(payload))."}