{
    "tender_id": 4059264,
    "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": "2026-10-30T01:34:57Z",
            "content": "{\"cpv\": \"09100000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3862507/dostawa-plynu-do-selektywnej-redukcji-katalitycznej-ad-blue\", \"buyer\": \"PKP Polskie Linie Kolejowe S.A.\", \"title\": \"Dostawa płynu do selektywnej redukcji katalitycznej Ad blue\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3862507\", \"deadline_at\": \"2026-11-02T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T01:34:58Z\"}",
            "content_hash": "ca56574a6da4186095b5336e0a320ee8e0efd93e792d4fc2e65e5f2e34939bde",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "6485cb8ac4cb2380ea52978c0380594caae4315789a9c207ed22f91f1f7bd586",
            "actor": null,
            "seal": {
                "id": 7,
                "digest": "a9f75e7ec6726860fada5c5807cac164b76cf44582f14a01cd7b4a36f579f813",
                "file": "https://tenderiq.pl/rejestr/pieczec-7.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-7.txt.ots",
                "bitcoin_block": 973897
            }
        }
    ]
}