{
    "tender_id": 1080026,
    "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\": \"30213100\", \"url\": \"https://e-propublico.pl/Ogloszenia/Details/e867c26f-39f3-45d0-a410-7312f6b56a7b\", \"buyer\": \"Politechnika Częstochowska\", \"title\": \"Dostawa sprzętu komputerowego dla jednostek organizacyjnych Politechniki Częstochowskiej (4 zadania)\", \"region\": \"slaskie\", \"source\": \"epropublico\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"e867c26f-39f3-45d0-a410-7312f6b56a7b\", \"deadline_at\": \"2026-11-03T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-10T15:16:36Z\", \"procedure_url\": \"https://e-propublico.pl/Ogloszenia/Details/e867c26f-39f3-45d0-a410-7312f6b56a7b\"}",
            "content_hash": "fb3886a84421678880e16c8bcc7e186f9e67303f0bddcfb87561ce2e895da9e2",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "e2ebcebc63c75039e95eeb919e5ea1d8cbeafd1f4a53e0145947eec2e8b79b28",
            "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
            }
        }
    ]
}