{"algorithm":"Ed25519","canonicalization":"JSON con chiavi ordinate (sort_keys), separatori compatti (',' ':'), ensure_ascii","payload":{"verdict_id":445,"claim_id":458,"claim_text":"This vital step towards screening for prostate cancer, for which black men have doubled risk for both diagnosis and death.","label":"vero","confidence":0.9,"explanation":"Black men are around twice as likely to be diagnosed with prostate cancer (roughly 1 in 4 vs 1 in 8) and about twice as likely to die from it. The TRANSFORM screening trial is inviting eligible Black men, consistent with the claim.","sources":[{"url":"https://www.imperial.ac.uk/news/articles/2026/transform-study-extends-prostate-cancer-screening-to-black-men-in-the-uk/","ente":"Imperial College London / NHS","titolo":"TRANSFORM study extends prostate cancer screening to Black men in the UK","estratto":"Black men are twice as likely to get prostate cancer and twice as likely to die from it (1 in 4 vs 1 in 8)."}],"issued_at":"2026-07-01T07:59:08+00:00"},"signature_b64":"wDnaEbjb2dv0Rkojahfx5Iha67Fnqe7droflmGVGXbQhPECLksIJBnnx8HkvoSNefTAGk54Gv3ZebX6/50A9AQ==","public_key_hex":"1719e2638a2cc0ec8d552d71dca52197f934e0a66b17e6364f1eed7a1d428e01","note":"Verifica offline: ed25519_verify(public_key, base64decode(signature_b64), canonical_json(payload))."}