{
    "tender_id": 4713240,
    "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": "2026-11-02T05:56:44Z",
            "content": "{\"cpv\": \"90500000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/756788-2026\", \"buyer\": \"GMINA SIEMKOWICE\", \"title\": \"Polska – Usługi związane z odpadami – Odbiór i zagospodarowanie odpadów komunalnych z terenu gminy Siemkowice\", \"region\": \"lodzkie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [\"90513100\", \"90533000\", \"90514000\", \"90512000\"], \"location\": \"PL714, POL, PL714, POL\", \"buyer_nip\": \"5080015198\", \"source_id\": \"756788-2026\", \"deadline_at\": \"2026-11-09T09:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-11-02T01:00:00Z\"}",
            "content_hash": "7c12b350aa10ba14bfaa17650aa03f2349c2038cda5061bd4607500391af4587",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "86d689c260a0c14cf1a6ead229fad61d44fc2521407bf062804fb8c92f085c51",
            "actor": null,
            "seal": null
        }
    ]
}