{"algorithm":"Ed25519","canonicalization":"JSON con chiavi ordinate (sort_keys), separatori compatti (',' ':'), ensure_ascii","payload":{"verdict_id":424,"claim_id":437,"claim_text":"We are lucky to have the British Standards Institute, the oldest standards institute in the world.","label":"vero","confidence":0.9,"explanation":"BSI was founded in London in 1901 (as the Engineering Standards Committee) and is recognised as the world's first national standards body, adopting the name British Standards Institution in 1931. The claim that it is the oldest/first national standards institute is accurate.","sources":[{"url":"https://www.bsigroup.com/en-GB/about-bsi/national-standards-body/","ente":"BSI","titolo":"The UK's National Standards Body","estratto":"BSI, founded in 1901, was the world's first National Standards Body."},{"url":"https://www.iso.org/member/2064.html","ente":"ISO","titolo":"BSI - British Standards Institution (member profile)","estratto":"BSI, established 1901, UK national standards body."}],"issued_at":"2026-07-01T07:59:04+00:00"},"signature_b64":"SczBf5XZrbY8JhAchaUmA82sZ/y/PgEuJwN31Fgjqsk2HeBkbiJGf6FkgEjCz0CdRmTyL1ooSZzwTnE2A52YBw==","public_key_hex":"1719e2638a2cc0ec8d552d71dca52197f934e0a66b17e6364f1eed7a1d428e01","note":"Verifica offline: ed25519_verify(public_key, base64decode(signature_b64), canonical_json(payload))."}