{
    "tender_id": 5215696,
    "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": "2026-11-04T15:23:15Z",
            "content": "{\"cpv\": \"50222000\", \"url\": \"https://bogdanka.eb2b.com.pl/open-preview-auction.html/154182/naprawa-agregatow-sprezarkowych-typu-sp-02et-etap-i-weryfikacja\", \"buyer\": \"LUBELSKI WĘGIEL BOGDANKA S.A.\", \"title\": \"Naprawa agregatów sprężarkowych typu SP-02ET – Etap I Weryfikacja\", \"source\": \"bogdanka_eb2b\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"154182\", \"deadline_at\": \"2026-11-09T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-04T12:45:00Z\"}",
            "content_hash": "00b5da6e6d0dcd047c051844b406bc1dc0b5949ea5620bec23a9b9f4f1468fca",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "b5a36a30eb3eb0571e7f0671b8a1b7a8baf3d4faa2577cb81e4267264efd5ac5",
            "actor": null,
            "seal": {
                "id": 12,
                "digest": "e23c0f5a7e440e937f514487a150dc1be40887f39a941304e364e5e94a4b77fc",
                "file": "https://tenderiq.pl/rejestr/pieczec-12.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-12.txt.ots",
                "bitcoin_block": null
            }
        }
    ]
}