{
    "tender_id": 3348353,
    "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": "2026-10-26T08:31:31Z",
            "content": "{\"cpv\": \"66510000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/738583-2026\", \"buyer\": \"GMINA MIASTO OŁAWA\", \"title\": \"Polska – Usługi ubezpieczeniowe – Ubezpieczenie majątku i innych interesów Gminy Miasto Oława\", \"region\": \"dolnoslaskie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [\"66515100\", \"66515400\", \"66515000\", \"66516400\", \"66516000\", \"66516100\", \"66514110\", \"66512100\"], \"location\": \"PL518, POL, PL518, PL518, PL518, POL, POL, POL\", \"buyer_nip\": \"9121717084\", \"source_id\": \"738583-2026\", \"deadline_at\": \"2026-11-06T11:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-26T01:00:00Z\"}",
            "content_hash": "6968d5e02a13e5b810619db77fd600be3c0959fb0016841676ec2e660db39c0d",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "c4f4b69af4c6f669843d3de81af0519f0130bcb79c895002b47922ef4adfe2c6",
            "actor": null,
            "seal": {
                "id": 3,
                "digest": "1119fd2ade60dc88ac794742ff488b9486e8a488f9d77cc6d6a9444474dc1c77",
                "file": "https://tenderiq.pl/rejestr/pieczec-3.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-3.txt.ots",
                "bitcoin_block": 973309
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-26T23:35:23Z",
            "content": "{\"cpv\": \"66510000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/738583-2026\", \"buyer\": \"GMINA MIASTO OŁAWA\", \"title\": \"Polska – Usługi ubezpieczeniowe – Ubezpieczenie majątku i innych interesów Gminy Miasto Oława\", \"region\": \"dolnoslaskie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [\"66515100\", \"66515400\", \"66515000\", \"66516400\", \"66516000\", \"66516100\", \"66514110\", \"66512100\"], \"location\": \"PL518, POL, PL518, PL518, PL518, POL, POL, POL\", \"buyer_nip\": \"9121717084\", \"source_id\": \"738583-2026\", \"deadline_at\": \"2026-11-06T11:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-26T01:00:00Z\", \"procedure_url\": \"https://interbroker.logintrade.net/zapytania_email,241951,81e35bb913005578d610fdc4983fefe2.html\"}",
            "content_hash": "1abcdb171aaf73b8480b50d543637aecd00d50817e2c4581f1a4bd8fddf2b67f",
            "prev_hash": "c4f4b69af4c6f669843d3de81af0519f0130bcb79c895002b47922ef4adfe2c6",
            "hash": "4ce928a410386004d50ed95a2dbb567dc76727749a6f5c9d8d671fcf9fe0d005",
            "actor": null,
            "seal": {
                "id": 4,
                "digest": "1a6d1144791ca08d9453bd1c8d38a6c251eb74cb6d377626fde25c11a52ccc7a",
                "file": "https://tenderiq.pl/rejestr/pieczec-4.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-4.txt.ots",
                "bitcoin_block": 973472
            }
        }
    ]
}