{"algorithm":"Ed25519","canonicalization":"JSON con chiavi ordinate (sort_keys), separatori compatti (',' ':'), ensure_ascii","payload":{"verdict_id":600,"claim_id":613,"claim_text":"Seven prime ministers in a decade might suggest that it's more than just the wrong people getting the keys to number 10.","label":"impreciso","confidence":0.6,"explanation":"Counting the decade to mid-2026, the UK had six prime ministers holding office (Cameron, May, Johnson, Truss, Sunak, Starmer). 'Seven' overstates this unless an incoming successor to Starmer - implied elsewhere in the debate to be departing - is included; on the standard count over any ten-year window since 2015 the figure is six, not seven.","sources":[{"url":"https://www.gov.uk/government/history/past-prime-ministers","ente":"GOV.UK","titolo":"Past Prime Ministers","estratto":"List of UK Prime Ministers: Cameron (to 2016), May, Johnson, Truss, Sunak, Starmer."}],"issued_at":"2026-07-01T08:08:14+00:00"},"signature_b64":"d36+F+FNi4k4cV/8q/Yj+eghHgIII7d/v4bIjui0o48TuzoIF6axQOGDkFwOv4qsl8timuxB7NOPCT81mjcTAg==","public_key_hex":"1719e2638a2cc0ec8d552d71dca52197f934e0a66b17e6364f1eed7a1d428e01","note":"Verifica offline: ed25519_verify(public_key, base64decode(signature_b64), canonical_json(payload))."}