{
    "tender_id": 4322639,
    "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": "2026-10-31T10:16:29Z",
            "content": "{\"cpv\": \"31711140\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3864906/zanam-p-j-257-2026-dostawa-elementow-konstrukcyjnych-przenosnikow-oraz-urzadzen-z-nimi-wspolpracujacych\", \"buyer\": \"KGHM Polska Miedź S.A.\", \"title\": \"ZANAM-P-JŁ-257-2026 Dostawa elementów konstrukcyjnych przenośników oraz urządzeń z nimi współpracujących\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3864906\", \"deadline_at\": \"2026-11-03T10:30:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-31T10:16:29Z\"}",
            "content_hash": "179cc0a4d1dd1bf14baf476ef02f469768fc833b8be0c82b374ab2d2d80e8235",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "54c985a60543651f774764c112b6d55111f4d20d685c5140a7bc85f19092a816",
            "actor": null,
            "seal": null
        }
    ]
}