{
    "tender_id": 1180031,
    "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": "2026-10-24T13:58:39Z",
            "content": "{\"cpv\": \"60000000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3817503/przedmiotem-umowy-sa-uslugi-kurierskie-krajowego-transportu-probek-biologicznych\", \"buyer\": \"UNIWERSYTET MEDYCZNY W ŁODZI\", \"title\": \"Przedmiotem umowy są usługi kurierskie krajowego transportu próbek biologicznych\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3817503\", \"deadline_at\": \"2026-10-19T22:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-13T11:54:55Z\"}",
            "content_hash": "13e9a1ca70e31c06d21f5dc8d3bd688cffafa01261d7ec483a1a654afd1df519",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "67d7d1c280db56a9d0c9343912696020488e5e97254656a8714307331901d4a8",
            "actor": null,
            "seal": {
                "id": 1,
                "digest": "25686b149cfd327de10f8db2827c82e22b0d6a884d716cd11b36328364d6937d",
                "file": "https://tenderiq.pl/rejestr/pieczec-1.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-1.txt.ots",
                "bitcoin_block": 972985
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-31T23:46:06Z",
            "content": "{\"cpv\": \"60000000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3817503/przedmiotem-umowy-sa-uslugi-kurierskie-krajowego-transportu-probek-biologicznych\", \"buyer\": \"UNIWERSYTET MEDYCZNY W ŁODZI\", \"title\": \"Przedmiotem umowy są usługi kurierskie krajowego transportu próbek biologicznych\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3817503\", \"deadline_at\": \"2026-11-12T23:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-13T11:54:55Z\"}",
            "content_hash": "54085b924e18f039f8f59ac4ac57524dc8b2502d7749d7c024f499b19d2262e3",
            "prev_hash": "67d7d1c280db56a9d0c9343912696020488e5e97254656a8714307331901d4a8",
            "hash": "9a0b152e49bf157293e22cafcf86f3398f958540a36b3f1f6fdf3a4014266ae2",
            "actor": null,
            "seal": null
        }
    ]
}