{
    "tender_id": 4772940,
    "check": {
        "ok": true,
        "versions": 7,
        "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": "2026-11-02T13:00:26Z",
            "content": "{\"cpv\": \"33696500\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3866114/dostawa-materialow-do-badan\", \"buyer\": \"UNIWERSYTET MARII CURIE-SKŁODOWSKIEJ\", \"title\": \"Dostawa materiałów do badań\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3866114\", \"deadline_at\": \"2026-11-05T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-02T13:00:26Z\"}",
            "content_hash": "6abe96946252d6cf273fd09d4540f670f4f06ddbaf52248448336e6ac2386446",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "a1734da929c47abaeb5b7acfaac2a509159351f88354487ff3cfd9e79661fc36",
            "actor": null,
            "seal": {
                "id": 10,
                "digest": "297505af1d9d820e84b46bcdd40ae11b1ffc912134eeb69a764090ac7f9838b4",
                "file": "https://tenderiq.pl/rejestr/pieczec-10.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-10.txt.ots",
                "bitcoin_block": 974314
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-02T13:45:42Z",
            "content": "{\"cpv\": \"33696500\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3866114/dostawa-materialow-do-badan\", \"buyer\": \"UNIWERSYTET MARII CURIE-SKŁODOWSKIEJ\", \"title\": \"Dostawa materiałów do badań\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3866114\", \"deadline_at\": \"2026-11-05T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-02T13:00:26Z\", \"procedure_url\": \"https://umcs.ezamawiajacy.pl/pn/UMCS/demand/notice/public/240905/details\"}",
            "content_hash": "be8e1c6d3c92328a5f597dcd4eea723e3c272bb676db395e639f796ac26635a5",
            "prev_hash": "a1734da929c47abaeb5b7acfaac2a509159351f88354487ff3cfd9e79661fc36",
            "hash": "bb3533a8b12a35bb4ce40c963c06958191272ee4e2ed0c7309747d38c5b4bd5a",
            "actor": null,
            "seal": {
                "id": 10,
                "digest": "297505af1d9d820e84b46bcdd40ae11b1ffc912134eeb69a764090ac7f9838b4",
                "file": "https://tenderiq.pl/rejestr/pieczec-10.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-10.txt.ots",
                "bitcoin_block": 974314
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-11-02T15:33:25Z",
            "content": "{\"cpv\": \"33696500\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3866114/dostawa-materialow-do-badan\", \"buyer\": \"UNIWERSYTET MARII CURIE-SKŁODOWSKIEJ\", \"title\": \"Dostawa materiałów do badań\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3866114\", \"deadline_at\": \"2026-11-05T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-02T13:00:26Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3857678/dostawa-materialow-do-badan\"}",
            "content_hash": "87e420d93cdfe47637db235270e1870061852ffe4cca7e379c9499f549b31849",
            "prev_hash": "bb3533a8b12a35bb4ce40c963c06958191272ee4e2ed0c7309747d38c5b4bd5a",
            "hash": "291e3ed9c5ef943228c1306c303cd2e49c7bb8068015ca8b7d4855a3e07b2180",
            "actor": null,
            "seal": {
                "id": 10,
                "digest": "297505af1d9d820e84b46bcdd40ae11b1ffc912134eeb69a764090ac7f9838b4",
                "file": "https://tenderiq.pl/rejestr/pieczec-10.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-10.txt.ots",
                "bitcoin_block": 974314
            }
        },
        {
            "version": 4,
            "recorded_at": "2026-11-03T03:35:05Z",
            "content": "{\"cpv\": \"33696500\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3866114/dostawa-materialow-do-badan\", \"buyer\": \"UNIWERSYTET MARII CURIE-SKŁODOWSKIEJ\", \"title\": \"Dostawa materiałów do badań\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3866114\", \"deadline_at\": \"2026-11-05T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-02T13:00:26Z\", \"procedure_url\": \"https://umcs.ezamawiajacy.pl/pn/UMCS/demand/notice/public/240905/details\"}",
            "content_hash": "be8e1c6d3c92328a5f597dcd4eea723e3c272bb676db395e639f796ac26635a5",
            "prev_hash": "291e3ed9c5ef943228c1306c303cd2e49c7bb8068015ca8b7d4855a3e07b2180",
            "hash": "18f138b62f5088bfa3b5ca15ccdd1a0f1f0b94cea2293113f2d603e558874ffe",
            "actor": null,
            "seal": {
                "id": 11,
                "digest": "e9a17a70070a65f95be452321715a138cbb650567f41e2bae0faa2ffd562bbbd",
                "file": "https://tenderiq.pl/rejestr/pieczec-11.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-11.txt.ots",
                "bitcoin_block": 974456
            }
        },
        {
            "version": 5,
            "recorded_at": "2026-11-03T15:33:21Z",
            "content": "{\"cpv\": \"33696500\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3866114/dostawa-materialow-do-badan\", \"buyer\": \"UNIWERSYTET MARII CURIE-SKŁODOWSKIEJ\", \"title\": \"Dostawa materiałów do badań\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3866114\", \"deadline_at\": \"2026-11-05T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-02T13:00:26Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3860190/dostawa-materialow-do-badan\"}",
            "content_hash": "7526cdd1baaac9c7e8faf985d83870a7646d2fa248db562ca5e5e1ce44f6c1c5",
            "prev_hash": "18f138b62f5088bfa3b5ca15ccdd1a0f1f0b94cea2293113f2d603e558874ffe",
            "hash": "b71e2e0fbe68e48289ce1ce6fe3e17cdd43599f85df94d1919cad415427315fc",
            "actor": null,
            "seal": {
                "id": 11,
                "digest": "e9a17a70070a65f95be452321715a138cbb650567f41e2bae0faa2ffd562bbbd",
                "file": "https://tenderiq.pl/rejestr/pieczec-11.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-11.txt.ots",
                "bitcoin_block": 974456
            }
        },
        {
            "version": 6,
            "recorded_at": "2026-11-03T21:45:57Z",
            "content": "{\"cpv\": \"33696500\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3866114/dostawa-materialow-do-badan\", \"buyer\": \"UNIWERSYTET MARII CURIE-SKŁODOWSKIEJ\", \"title\": \"Dostawa materiałów do badań\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3866114\", \"deadline_at\": \"2026-11-05T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-02T13:00:26Z\", \"procedure_url\": \"https://umcs.ezamawiajacy.pl/pn/UMCS/demand/notice/public/240905/details\"}",
            "content_hash": "be8e1c6d3c92328a5f597dcd4eea723e3c272bb676db395e639f796ac26635a5",
            "prev_hash": "b71e2e0fbe68e48289ce1ce6fe3e17cdd43599f85df94d1919cad415427315fc",
            "hash": "f6f8e73bdbdcdd02cd69ac8c3c9eef043a329b67dbadef1b745fa4da6ea7a618",
            "actor": null,
            "seal": {
                "id": 11,
                "digest": "e9a17a70070a65f95be452321715a138cbb650567f41e2bae0faa2ffd562bbbd",
                "file": "https://tenderiq.pl/rejestr/pieczec-11.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-11.txt.ots",
                "bitcoin_block": 974456
            }
        },
        {
            "version": 7,
            "recorded_at": "2026-11-04T09:45:22Z",
            "content": "{\"cpv\": \"33696500\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3866114/dostawa-materialow-do-badan\", \"buyer\": \"UNIWERSYTET MARII CURIE-SKŁODOWSKIEJ\", \"title\": \"Dostawa materiałów do badań\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3866114\", \"deadline_at\": \"2026-11-05T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-02T13:00:26Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3866126/dostawa-materialow-do-badan\"}",
            "content_hash": "07cf268e6d31dcafabed788f44332ad91a96165e760bf29e1009617c394d5306",
            "prev_hash": "f6f8e73bdbdcdd02cd69ac8c3c9eef043a329b67dbadef1b745fa4da6ea7a618",
            "hash": "43225842521c338fcc9e3f9417ac03cf6f3bda4cfbe0826cabd71aae16a603c5",
            "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": 974604
            }
        }
    ]
}