{"ok":true,"receipts":[{"id":"2","action":"badge-confirm","created_at":"2026-09-30T23:59:20.158Z","url":"/receipts/2","json":"/api/v1/public/receipt?id=2"},{"id":"1","action":"signup","created_at":"2026-09-30T18:44:05.181Z","url":"/receipts/1","json":"/api/v1/public/receipt?id=1"}],"historical_evidence":"Only preserved original signatures are shown; older actions may have no receipt.","read_at":"2026-10-01T10:29:39.211Z"}