{"algorithm":"Ed25519","canonicalization":"JSON con chiavi ordinate (sort_keys), separatori compatti (',' ':'), ensure_ascii","payload":{"verdict_id":446,"claim_id":459,"claim_text":"Zero Conservative councilors for the first time since 1964 across Havering and the first Reform UK London Borough.","label":"vero","confidence":0.72,"explanation":"In the May 2026 Havering elections the Conservatives won zero of 55 seats while Reform UK won 39 and took control — its first London borough. The core facts (no Conservative councillors, first Reform-run London borough) are confirmed; the specific 'first time since 1964' historical comparison is plausible (Havering's council was created in 1964) but is not independently documented in the sources checked.","sources":[{"url":"https://en.wikipedia.org/wiki/2026_Havering_London_Borough_Council_election","ente":"Wikipedia (results)","titolo":"2026 Havering London Borough Council election","estratto":"Reform UK 39, Havering Residents 11, Labour 2, Conservative 0; Reform gains control."}],"issued_at":"2026-07-01T07:59:08+00:00"},"signature_b64":"rpXcfMqlGx3I50e2xknDG8SR3Ty2J/l9tI+AgNYotLLIkV0pXamvCOnOjg4qyGpgxRU9SpoPt9wSg4n/oiyJDQ==","public_key_hex":"1719e2638a2cc0ec8d552d71dca52197f934e0a66b17e6364f1eed7a1d428e01","note":"Verifica offline: ed25519_verify(public_key, base64decode(signature_b64), canonical_json(payload))."}