{
    "tender_id": 3858688,
    "check": {
        "ok": true,
        "versions": 3,
        "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": "2026-10-29T02:07:06Z",
            "content": "{\"cpv\": \"45000000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/751789-2026\", \"buyer\": \"Gmina Lubicz\", \"title\": \"Polska – Roboty budowlane – Budowa obiektu mostowego wraz z drogą dojazdową klasy „L” na odcinku od ul. Małgorzatowo do DW nr 657 w Nowej Wsi.\", \"region\": \"kujawsko-pomorskie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [\"45221110\", \"45221111\", \"45233120\", \"45233000\"], \"location\": \"PL613, POL, PL613, POL\", \"buyer_nip\": \"8792617506\", \"source_id\": \"751789-2026\", \"deadline_at\": \"2026-11-06T10:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-29T01:00:00Z\"}",
            "content_hash": "4e6dc738d045a238e9c6edc460f589dc389168b90884677ae82b5dd4d51cbb92",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "ad2daccca9baafbf474a3efb783947b3b3ea2e18e627afc36bb71ffeeaa63f11",
            "actor": null,
            "seal": {
                "id": 6,
                "digest": "e733200881d78faed3c108fa90cea332062fa40f3af23fcfd3f901e311d96e33",
                "file": "https://tenderiq.pl/rejestr/pieczec-6.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-6.txt.ots",
                "bitcoin_block": 973754
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-29T05:45:53Z",
            "content": "{\"cpv\": \"45000000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/751789-2026\", \"buyer\": \"Gmina Lubicz\", \"title\": \"Polska – Roboty budowlane – Budowa obiektu mostowego wraz z drogą dojazdową klasy „L” na odcinku od ul. Małgorzatowo do DW nr 657 w Nowej Wsi.\", \"region\": \"kujawsko-pomorskie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [\"45221110\", \"45221111\", \"45233120\", \"45233000\"], \"location\": \"PL613, POL, PL613, POL\", \"buyer_nip\": \"8792617506\", \"source_id\": \"751789-2026\", \"deadline_at\": \"2026-11-06T10:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-29T01:00:00Z\", \"procedure_url\": \"https://ted.europa.eu/pl/notice/-/detail/727039-2026\"}",
            "content_hash": "f31107f3b814f6b063441f7072a6448c67478edac6a6447d1fbbd699d413ea27",
            "prev_hash": "ad2daccca9baafbf474a3efb783947b3b3ea2e18e627afc36bb71ffeeaa63f11",
            "hash": "74a89445b82184c079353cde00c33bf0f1393511191f8ee810cca0ea8438f28a",
            "actor": null,
            "seal": {
                "id": 6,
                "digest": "e733200881d78faed3c108fa90cea332062fa40f3af23fcfd3f901e311d96e33",
                "file": "https://tenderiq.pl/rejestr/pieczec-6.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-6.txt.ots",
                "bitcoin_block": 973754
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-10-29T07:32:35Z",
            "content": "{\"cpv\": \"45000000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/751789-2026\", \"buyer\": \"Gmina Lubicz\", \"title\": \"Polska – Roboty budowlane – Budowa obiektu mostowego wraz z drogą dojazdową klasy „L” na odcinku od ul. Małgorzatowo do DW nr 657 w Nowej Wsi.\", \"region\": \"kujawsko-pomorskie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [\"45221110\", \"45221111\", \"45233120\", \"45233000\"], \"location\": \"PL613, POL, PL613, POL\", \"buyer_nip\": \"8792617506\", \"source_id\": \"751789-2026\", \"deadline_at\": \"2026-11-06T10:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-29T01:00:00Z\", \"procedure_url\": \"https://ted.europa.eu/pl/notice/-/detail/751789-2026\"}",
            "content_hash": "400a5b46ba498438a81764ea57369ec8e1e6505ebeccb7ba8e6f31420c3386c3",
            "prev_hash": "74a89445b82184c079353cde00c33bf0f1393511191f8ee810cca0ea8438f28a",
            "hash": "a59833587cdab3ce87e87a7f96865a9dc37e5bde1917bb088fc81c43ee03b554",
            "actor": null,
            "seal": {
                "id": 6,
                "digest": "e733200881d78faed3c108fa90cea332062fa40f3af23fcfd3f901e311d96e33",
                "file": "https://tenderiq.pl/rejestr/pieczec-6.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-6.txt.ots",
                "bitcoin_block": 973754
            }
        }
    ]
}