{"algorithm":"Ed25519","canonicalization":"JSON con chiavi ordinate (sort_keys), separatori compatti (',' ':'), ensure_ascii","payload":{"verdict_id":395,"claim_id":408,"claim_text":"Ella Roberta's mom knows this all too well. Her little girl was just 9 years old when she died as a direct result of air pollution.","label":"vero","confidence":0.95,"explanation":"Ella Adoo-Kissi-Debrah died in February 2013 aged 9. In December 2020 Deputy Coroner Philip Barlow ruled that air pollution made a material contribution to her death — the first time air pollution was recorded as a cause of death on a UK death certificate.","sources":[{"url":"https://www.ellaroberta.org/campaigns/inquest-coroners-report","ente":"HM Coroner (Ella Roberta Foundation)","titolo":"Inquest & Coroner's Report","estratto":"The coroner ruled that 9-year-old Ella died as a result of air pollution, a global first."}],"issued_at":"2026-07-01T07:58:27+00:00"},"signature_b64":"LrmnwZ1DLFlXKtOTN7uih0K6hXZEh3kT8TdvpubQuATbZgGBqpJoTcHuhOzEezbVhHRFzCPlD2sefviYHCGOAw==","public_key_hex":"1719e2638a2cc0ec8d552d71dca52197f934e0a66b17e6364f1eed7a1d428e01","note":"Verifica offline: ed25519_verify(public_key, base64decode(signature_b64), canonical_json(payload))."}