{
    "tender_id": 4713482,
    "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": "2026-11-02T05:57:38Z",
            "content": "{\"cpv\": \"09134100\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/759910-2026\", \"buyer\": \"Zakład Oczyszczania i Gospodarki Odpadami MZO SA\", \"title\": \"Polska – Olej napędowy – Dostawy oleju napędowego do Zakładu Oczyszczania i Gospodarki Odpadami MZO SA w Ostrowie Wielkopolskim\", \"region\": \"wielkopolskie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"PL416, POL, PL416, POL\", \"buyer_nip\": \"6221001188\", \"source_id\": \"759910-2026\", \"deadline_at\": \"2026-12-04T09:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-11-02T01:00:00Z\"}",
            "content_hash": "c20efc8df0bccf2b5f4062689e8f969f134b385ca74b26d65f8f26b0384602e1",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "00f1b9bd4ca5ac0240292474dcb8f50f962d65b703830a9b065b7d4a91f1952f",
            "actor": null,
            "seal": null
        }
    ]
}