{
    "tender_id": 3623050,
    "check": {
        "ok": true,
        "versions": 9,
        "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": "2026-10-27T16:22:23Z",
            "content": "{\"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3855853/dostawa-wentylatora-td-250-348-10-\", \"buyer\": \"Miejskie Przedsiębiorstwo Komunikacyjne sp. z o.o. we Wrocławiu\", \"title\": \"Dostawa wentylatora TD-250 (348/10)\", \"region\": \"dolnoslaskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3855853\", \"deadline_at\": \"2026-11-02T08:15:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-27T16:22:24Z\"}",
            "content_hash": "8941922828b90aec78d99a29ef1ab82c34c9389514521482e52dc865947246b1",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "4cee681ddd456de9527bcfd42d076bd73c0484398d742b0d7b6a88674e2e91ea",
            "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
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-27T23:32:46Z",
            "content": "{\"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3855853/dostawa-wentylatora-td-250-348-10-\", \"buyer\": \"Miejskie Przedsiębiorstwo Komunikacyjne sp. z o.o. we Wrocławiu\", \"title\": \"Dostawa wentylatora TD-250 (348/10)\", \"region\": \"dolnoslaskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3855853\", \"deadline_at\": \"2026-11-02T08:15:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-27T16:22:24Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3855853/dostawa-wentylatora-td-250-348-10-\"}",
            "content_hash": "c92dd1443cfbcb11286be66abcf49ce23fee9fc34b607b9c46d1d1c3f1127ea0",
            "prev_hash": "4cee681ddd456de9527bcfd42d076bd73c0484398d742b0d7b6a88674e2e91ea",
            "hash": "ed4f5c9df93b1374415fad8164c658ad85d0f9e0163014f1d596da53d14dfa26",
            "actor": null,
            "seal": {
                "id": 5,
                "digest": "0659ce1e2aadd7f69ed1ff4603a4290c070eaa14bbeed28a3c9a7cc2127acae9",
                "file": "https://tenderiq.pl/rejestr/pieczec-5.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-5.txt.ots",
                "bitcoin_block": 973609
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-10-28T22:45:35Z",
            "content": "{\"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3855853/dostawa-wentylatora-td-250-348-10-\", \"buyer\": \"Miejskie Przedsiębiorstwo Komunikacyjne sp. z o.o. we Wrocławiu\", \"title\": \"Dostawa wentylatora TD-250 (348/10)\", \"region\": \"dolnoslaskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3855853\", \"deadline_at\": \"2026-11-02T08:15:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-27T16:22:24Z\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1398918\"}",
            "content_hash": "c95034cacff01ead12d10b5ea548985dc1af931f6c6dc007c5af95345bf111d9",
            "prev_hash": "ed4f5c9df93b1374415fad8164c658ad85d0f9e0163014f1d596da53d14dfa26",
            "hash": "278c7a5ccfd87e2cf2cbbbffd00f267d9e315d51762f3bb5f1059195f7d137c6",
            "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": 4,
            "recorded_at": "2026-10-29T05:45:52Z",
            "content": "{\"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3855853/dostawa-wentylatora-td-250-348-10-\", \"buyer\": \"Miejskie Przedsiębiorstwo Komunikacyjne sp. z o.o. we Wrocławiu\", \"title\": \"Dostawa wentylatora TD-250 (348/10)\", \"region\": \"dolnoslaskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3855853\", \"deadline_at\": \"2026-11-02T08:15:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-27T16:22:24Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3855853/dostawa-wentylatora-td-250-348-10-\"}",
            "content_hash": "c92dd1443cfbcb11286be66abcf49ce23fee9fc34b607b9c46d1d1c3f1127ea0",
            "prev_hash": "278c7a5ccfd87e2cf2cbbbffd00f267d9e315d51762f3bb5f1059195f7d137c6",
            "hash": "59a62ec9aec0ce9f31b42cce3533a95b8ef5603ef50f70e24e3b0020d85b41e2",
            "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": 5,
            "recorded_at": "2026-10-31T04:45:45Z",
            "content": "{\"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3855853/dostawa-wentylatora-td-250-348-10-\", \"buyer\": \"Miejskie Przedsiębiorstwo Komunikacyjne sp. z o.o. we Wrocławiu\", \"title\": \"Dostawa wentylatora TD-250 (348/10)\", \"region\": \"dolnoslaskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3855853\", \"deadline_at\": \"2026-11-02T08:15:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-27T16:22:24Z\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1398918\"}",
            "content_hash": "c95034cacff01ead12d10b5ea548985dc1af931f6c6dc007c5af95345bf111d9",
            "prev_hash": "59a62ec9aec0ce9f31b42cce3533a95b8ef5603ef50f70e24e3b0020d85b41e2",
            "hash": "da159cdb658856bef71c1f3c9b8538b6626d861425684e0e280aa9de7fdbab29",
            "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": 6,
            "recorded_at": "2026-10-31T10:45:47Z",
            "content": "{\"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3855853/dostawa-wentylatora-td-250-348-10-\", \"buyer\": \"Miejskie Przedsiębiorstwo Komunikacyjne sp. z o.o. we Wrocławiu\", \"title\": \"Dostawa wentylatora TD-250 (348/10)\", \"region\": \"dolnoslaskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3855853\", \"deadline_at\": \"2026-11-02T08:15:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-27T16:22:24Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3855853/dostawa-wentylatora-td-250-348-10-\"}",
            "content_hash": "c92dd1443cfbcb11286be66abcf49ce23fee9fc34b607b9c46d1d1c3f1127ea0",
            "prev_hash": "da159cdb658856bef71c1f3c9b8538b6626d861425684e0e280aa9de7fdbab29",
            "hash": "bc88257d72f0c9bd18248a6c41852bbc3d60bca2a11221b0528944c7bff930f1",
            "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": 7,
            "recorded_at": "2026-10-31T17:45:19Z",
            "content": "{\"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3855853/dostawa-wentylatora-td-250-348-10-\", \"buyer\": \"Miejskie Przedsiębiorstwo Komunikacyjne sp. z o.o. we Wrocławiu\", \"title\": \"Dostawa wentylatora TD-250 (348/10)\", \"region\": \"dolnoslaskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3855853\", \"deadline_at\": \"2026-11-02T08:15:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-27T16:22:24Z\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1398918\"}",
            "content_hash": "c95034cacff01ead12d10b5ea548985dc1af931f6c6dc007c5af95345bf111d9",
            "prev_hash": "bc88257d72f0c9bd18248a6c41852bbc3d60bca2a11221b0528944c7bff930f1",
            "hash": "350612ef806d9483661e13f0c99e5ca96ce647544bee2dd3988e84f7f684cea2",
            "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": 8,
            "recorded_at": "2026-11-01T00:45:47Z",
            "content": "{\"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3855853/dostawa-wentylatora-td-250-348-10-\", \"buyer\": \"Miejskie Przedsiębiorstwo Komunikacyjne sp. z o.o. we Wrocławiu\", \"title\": \"Dostawa wentylatora TD-250 (348/10)\", \"region\": \"dolnoslaskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3855853\", \"deadline_at\": \"2026-11-02T08:15:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-27T16:22:24Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3855853/dostawa-wentylatora-td-250-348-10-\"}",
            "content_hash": "c92dd1443cfbcb11286be66abcf49ce23fee9fc34b607b9c46d1d1c3f1127ea0",
            "prev_hash": "350612ef806d9483661e13f0c99e5ca96ce647544bee2dd3988e84f7f684cea2",
            "hash": "c21488a55807bacd007a5b712aefc525ca307fce787454e200da2e87e50f10a3",
            "actor": null,
            "seal": null
        },
        {
            "version": 9,
            "recorded_at": "2026-11-01T06:45:36Z",
            "content": "{\"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3855853/dostawa-wentylatora-td-250-348-10-\", \"buyer\": \"Miejskie Przedsiębiorstwo Komunikacyjne sp. z o.o. we Wrocławiu\", \"title\": \"Dostawa wentylatora TD-250 (348/10)\", \"region\": \"dolnoslaskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3855853\", \"deadline_at\": \"2026-11-02T08:15:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-27T16:22:24Z\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1398918\"}",
            "content_hash": "c95034cacff01ead12d10b5ea548985dc1af931f6c6dc007c5af95345bf111d9",
            "prev_hash": "c21488a55807bacd007a5b712aefc525ca307fce787454e200da2e87e50f10a3",
            "hash": "88a4c5b94921df40212318c3d5660114a539b97099374de33ca231a3d7a33ebe",
            "actor": null,
            "seal": null
        }
    ]
}