{
    "tender_id": 2744641,
    "check": {
        "ok": true,
        "versions": 1,
        "broken_at": null
    },
    "formula": "content_hash = sha256(content); hash = sha256(prev_hash + \"\\n\" + tender_id + \"\\n\" + version + \"\\n\" + recorded_at + \"\\n\" + content_hash [+ \"\\n\" + actor, when the version has one])",
    "versions": [
        {
            "version": 1,
            "recorded_at": "2026-10-24T13:58:39Z",
            "content": "{\"cpv\": \"71311000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/730835-2026\", \"buyer\": \"Consejero Delegado de la Empresa General Valenciana del Agua S.A.\", \"title\": \"Hiszpania – Usługi doradcze w zakresie inżynierii lądowej i wodnej – Acuerdo marco de servicios de ingeniería para la redacción de proyectos constructivos, memorias valoradas e informes técnicos, dirección de obra, coordinación de seguridad y salud y asistencia técnica en obras .\", \"source\": \"ted_esp\", \"status\": \"active\", \"cpv_more\": [\"71242000\", \"71351800\", \"71351914\", \"71355000\"], \"location\": \"ES111, ES112, ES113, ES114, ES120, ES130, ES211, ES212, ES213, ES220, ES230, ES241, ES242, ES243, ES300, ES411, ES412, ES413, ES414, ES415, ES416, ES417, ES418, ES419, ES421, ES422, ES423, ES424, ES425, ES431, ES432, ES511, ES512, ES513, ES514, ES521, ES5\", \"source_id\": \"730835-2026\", \"deadline_at\": \"2026-11-23T22:59:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-22T02:00:00Z\"}",
            "content_hash": "40890be5d5048ac594cb98df9e31f736e7cd40c046300acc6f1275eea0bed546",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "c4be25caf42ccd8b1bf38564a489c97f4fc10639c0a8c77a4733a72f622d734d",
            "actor": null,
            "seal": {
                "id": 1,
                "digest": "25686b149cfd327de10f8db2827c82e22b0d6a884d716cd11b36328364d6937d",
                "file": "https://tenderiq.pl/rejestr/pieczec-1.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-1.txt.ots",
                "bitcoin_block": 972985
            }
        }
    ]
}