{
    "tender_id": 4322207,
    "check": {
        "ok": true,
        "versions": 2,
        "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": "2026-10-31T10:16:07Z",
            "content": "{\"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3865483/zakup-odwadniaczy-wilkerson-f08-c2-sr00\", \"buyer\": \"MIEJSKIE PRZEDSIĘBIORSTWO KOMUNIKACYJNE SPÓŁKA AKCYJNA W KRAKOWIE\", \"title\": \"ZAKUP ODWADNIACZY - WILKERSON F08-C2-SR00\", \"region\": \"malopolskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3865483\", \"deadline_at\": \"2026-11-02T11:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-31T10:16:07Z\"}",
            "content_hash": "c0ca9d36d44b0f13f4957e80a689f75f9adfddb695caca352d8b94e2b34e4f07",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "ebb020330d81219339fe3e9da1916f76af51f1cee43f8dcfe0fd86012b2dd6c5",
            "actor": null,
            "seal": {
                "id": 8,
                "digest": "b9dfb65eef062a8f7633cee107df2b59fcca72ec5f093c9ceec0396cf65cd90d",
                "file": "https://tenderiq.pl/rejestr/pieczec-8.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-8.txt.ots",
                "bitcoin_block": 974039
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-31T10:45:35Z",
            "content": "{\"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3865483/zakup-odwadniaczy-wilkerson-f08-c2-sr00\", \"buyer\": \"MIEJSKIE PRZEDSIĘBIORSTWO KOMUNIKACYJNE SPÓŁKA AKCYJNA W KRAKOWIE\", \"title\": \"ZAKUP ODWADNIACZY - WILKERSON F08-C2-SR00\", \"region\": \"malopolskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3865483\", \"deadline_at\": \"2026-11-02T11:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-31T10:16:07Z\", \"procedure_url\": \"https://platforma.eb2b.com.pl/open-preview-auction.html/536327/zakup-odwadniaczy-wilkerson-f08-c2-sr00\"}",
            "content_hash": "200d9209a5fc571dd9d4ef60fc5067e591282195da9a3dc2a5b035d625c027b6",
            "prev_hash": "ebb020330d81219339fe3e9da1916f76af51f1cee43f8dcfe0fd86012b2dd6c5",
            "hash": "a6528a993e0310efd32e257baf60408d38becbd583ad774cef7f1c97aa3dfc29",
            "actor": null,
            "seal": {
                "id": 8,
                "digest": "b9dfb65eef062a8f7633cee107df2b59fcca72ec5f093c9ceec0396cf65cd90d",
                "file": "https://tenderiq.pl/rejestr/pieczec-8.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-8.txt.ots",
                "bitcoin_block": 974039
            }
        }
    ]
}