{
    "tender_id": 3828002,
    "check": {
        "ok": true,
        "versions": 12,
        "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": "2026-10-28T21:10:17Z",
            "content": "{\"cpv\": \"39296100\", \"url\": \"https://platformazakupowa.pl/transakcja/1399843\", \"buyer\": \"Przedsiębiorstwo Wodociągów i Kanalizacji Sp. z o.o. w Gorzowie Wielkopolskim\", \"title\": \"Zapytanie ofertowe na zakup i dostawę 2 monitorów IIYAMA PROLITE LH5575UHS-B2AG 55 4K\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1399843\", \"deadline_at\": \"2026-11-02T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-27T23:00:00Z\", \"notice_number\": \"1399843\"}",
            "content_hash": "816ad1c48ca0f90843e62e6dc5d0eddfd5992edd68a9c3d01e6924f0e7c00675",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "f1e88458cb3d25733fd5350262ab2cdc07810c79816996ddb6ffd30537625e6f",
            "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": 2,
            "recorded_at": "2026-10-28T21:45:31Z",
            "content": "{\"cpv\": \"39296100\", \"url\": \"https://platformazakupowa.pl/transakcja/1399843\", \"buyer\": \"Przedsiębiorstwo Wodociągów i Kanalizacji Sp. z o.o. w Gorzowie Wielkopolskim\", \"title\": \"Zapytanie ofertowe na zakup i dostawę 2 monitorów IIYAMA PROLITE LH5575UHS-B2AG 55 4K\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1399843\", \"deadline_at\": \"2026-11-02T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-27T23:00:00Z\", \"notice_number\": \"1399843\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3855961/zapytanie-ofertowe-na-zakup-i-dostawe-2-monitorow-iiyama-prolite-lh5575uhs-b1ag-55-4k\"}",
            "content_hash": "437a44235677d5b8d5d3f530a8904c23be7c25037f2cf921f5182486d787b0a5",
            "prev_hash": "f1e88458cb3d25733fd5350262ab2cdc07810c79816996ddb6ffd30537625e6f",
            "hash": "e0f636361ac92a841e6211044f9b87c9671cf9a2a570b423853072102b9a4e95",
            "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": "2026-10-28T22:45:39Z",
            "content": "{\"cpv\": \"39296100\", \"url\": \"https://platformazakupowa.pl/transakcja/1399843\", \"buyer\": \"Przedsiębiorstwo Wodociągów i Kanalizacji Sp. z o.o. w Gorzowie Wielkopolskim\", \"title\": \"Zapytanie ofertowe na zakup i dostawę 2 monitorów IIYAMA PROLITE LH5575UHS-B2AG 55 4K\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1399843\", \"deadline_at\": \"2026-11-02T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-27T23:00:00Z\", \"notice_number\": \"1399843\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1399026\"}",
            "content_hash": "f4cc31f01a9dc693d43e37336d2b888b04e2e475b81bb47348d7a68fcdf4ea7a",
            "prev_hash": "e0f636361ac92a841e6211044f9b87c9671cf9a2a570b423853072102b9a4e95",
            "hash": "75cd84cdceacafb541c968e977c2be86bce3a22319e7ac749a622e56987c5c2f",
            "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": "2026-10-28T23:31:46Z",
            "content": "{\"cpv\": \"39296100\", \"url\": \"https://platformazakupowa.pl/transakcja/1399843\", \"buyer\": \"Przedsiębiorstwo Wodociągów i Kanalizacji Sp. z o.o. w Gorzowie Wielkopolskim\", \"title\": \"Zapytanie ofertowe na zakup i dostawę 2 monitorów IIYAMA PROLITE LH5575UHS-B2AG 55 4K\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1399843\", \"deadline_at\": \"2026-11-02T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-27T23:00:00Z\", \"notice_number\": \"1399843\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1399843\"}",
            "content_hash": "d76ca1389e53c1fc9778374878cc357054f2b20fa7489537f7d8bd4e13f0a491",
            "prev_hash": "75cd84cdceacafb541c968e977c2be86bce3a22319e7ac749a622e56987c5c2f",
            "hash": "32b445a793eae1509c80aba2c5c9e483026122fe5b98b154703e432ce99ff0a9",
            "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": "2026-10-29T05:45:33Z",
            "content": "{\"cpv\": \"39296100\", \"url\": \"https://platformazakupowa.pl/transakcja/1399843\", \"buyer\": \"Przedsiębiorstwo Wodociągów i Kanalizacji Sp. z o.o. w Gorzowie Wielkopolskim\", \"title\": \"Zapytanie ofertowe na zakup i dostawę 2 monitorów IIYAMA PROLITE LH5575UHS-B2AG 55 4K\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1399843\", \"deadline_at\": \"2026-11-02T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-27T23:00:00Z\", \"notice_number\": \"1399843\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3858444/zapytanie-ofertowe-na-zakup-i-dostawe-2-monitorow-iiyama-prolite-lh5575uhs-b2ag-55-4k\"}",
            "content_hash": "d4f0ffb785ff265cccb28a708bc1a137f601626d6af591baf738afb8e2346f43",
            "prev_hash": "32b445a793eae1509c80aba2c5c9e483026122fe5b98b154703e432ce99ff0a9",
            "hash": "51f32fed0ee04121b339618ee2b44ce00952ade02da5ee99a97fdf82167b0a7b",
            "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": 6,
            "recorded_at": "2026-10-31T04:45:26Z",
            "content": "{\"cpv\": \"39296100\", \"url\": \"https://platformazakupowa.pl/transakcja/1399843\", \"buyer\": \"Przedsiębiorstwo Wodociągów i Kanalizacji Sp. z o.o. w Gorzowie Wielkopolskim\", \"title\": \"Zapytanie ofertowe na zakup i dostawę 2 monitorów IIYAMA PROLITE LH5575UHS-B2AG 55 4K\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1399843\", \"deadline_at\": \"2026-11-02T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-27T23:00:00Z\", \"notice_number\": \"1399843\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1399843\"}",
            "content_hash": "d76ca1389e53c1fc9778374878cc357054f2b20fa7489537f7d8bd4e13f0a491",
            "prev_hash": "51f32fed0ee04121b339618ee2b44ce00952ade02da5ee99a97fdf82167b0a7b",
            "hash": "61b73c2b7fb0deeb41f18a9baa5629c98a566ad0bcf23b5840c205a498de9960",
            "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": "2026-10-31T10:45:56Z",
            "content": "{\"cpv\": \"39296100\", \"url\": \"https://platformazakupowa.pl/transakcja/1399843\", \"buyer\": \"Przedsiębiorstwo Wodociągów i Kanalizacji Sp. z o.o. w Gorzowie Wielkopolskim\", \"title\": \"Zapytanie ofertowe na zakup i dostawę 2 monitorów IIYAMA PROLITE LH5575UHS-B2AG 55 4K\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1399843\", \"deadline_at\": \"2026-11-02T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-27T23:00:00Z\", \"notice_number\": \"1399843\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3858444/zapytanie-ofertowe-na-zakup-i-dostawe-2-monitorow-iiyama-prolite-lh5575uhs-b2ag-55-4k\"}",
            "content_hash": "d4f0ffb785ff265cccb28a708bc1a137f601626d6af591baf738afb8e2346f43",
            "prev_hash": "61b73c2b7fb0deeb41f18a9baa5629c98a566ad0bcf23b5840c205a498de9960",
            "hash": "0a39e30f7394943800bb4970023d59a04e8b286b3d2d50791a3d27a8e9c0d25e",
            "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": "2026-10-31T17:45:29Z",
            "content": "{\"cpv\": \"39296100\", \"url\": \"https://platformazakupowa.pl/transakcja/1399843\", \"buyer\": \"Przedsiębiorstwo Wodociągów i Kanalizacji Sp. z o.o. w Gorzowie Wielkopolskim\", \"title\": \"Zapytanie ofertowe na zakup i dostawę 2 monitorów IIYAMA PROLITE LH5575UHS-B2AG 55 4K\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1399843\", \"deadline_at\": \"2026-11-02T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-27T23:00:00Z\", \"notice_number\": \"1399843\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1399843\"}",
            "content_hash": "d76ca1389e53c1fc9778374878cc357054f2b20fa7489537f7d8bd4e13f0a491",
            "prev_hash": "0a39e30f7394943800bb4970023d59a04e8b286b3d2d50791a3d27a8e9c0d25e",
            "hash": "b2ebf17e1f6c865fbe3c7c3a0ee26f11bec0fdd970a9cc07377d455ac88a4fac",
            "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": 9,
            "recorded_at": "2026-11-01T00:45:53Z",
            "content": "{\"cpv\": \"39296100\", \"url\": \"https://platformazakupowa.pl/transakcja/1399843\", \"buyer\": \"Przedsiębiorstwo Wodociągów i Kanalizacji Sp. z o.o. w Gorzowie Wielkopolskim\", \"title\": \"Zapytanie ofertowe na zakup i dostawę 2 monitorów IIYAMA PROLITE LH5575UHS-B2AG 55 4K\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1399843\", \"deadline_at\": \"2026-11-02T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-27T23:00:00Z\", \"notice_number\": \"1399843\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3858444/zapytanie-ofertowe-na-zakup-i-dostawe-2-monitorow-iiyama-prolite-lh5575uhs-b2ag-55-4k\"}",
            "content_hash": "d4f0ffb785ff265cccb28a708bc1a137f601626d6af591baf738afb8e2346f43",
            "prev_hash": "b2ebf17e1f6c865fbe3c7c3a0ee26f11bec0fdd970a9cc07377d455ac88a4fac",
            "hash": "d28d6423efcfa417a892048b7dd6d7da9cbac6841f8b016c736ec137f81a7b06",
            "actor": null,
            "seal": {
                "id": 9,
                "digest": "2dfeb1f26d6191d887699bed5d05f226d8baa25e2f81adcf1d5d9f3ce86c75c5",
                "file": "https://tenderiq.pl/rejestr/pieczec-9.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-9.txt.ots",
                "bitcoin_block": 974194
            }
        },
        {
            "version": 10,
            "recorded_at": "2026-11-01T06:45:39Z",
            "content": "{\"cpv\": \"39296100\", \"url\": \"https://platformazakupowa.pl/transakcja/1399843\", \"buyer\": \"Przedsiębiorstwo Wodociągów i Kanalizacji Sp. z o.o. w Gorzowie Wielkopolskim\", \"title\": \"Zapytanie ofertowe na zakup i dostawę 2 monitorów IIYAMA PROLITE LH5575UHS-B2AG 55 4K\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1399843\", \"deadline_at\": \"2026-11-02T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-27T23:00:00Z\", \"notice_number\": \"1399843\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1399843\"}",
            "content_hash": "d76ca1389e53c1fc9778374878cc357054f2b20fa7489537f7d8bd4e13f0a491",
            "prev_hash": "d28d6423efcfa417a892048b7dd6d7da9cbac6841f8b016c736ec137f81a7b06",
            "hash": "ce91a1cf3e2584abee7e16ef0cf84d44c73c04c07c89c17059842a7a109eb435",
            "actor": null,
            "seal": {
                "id": 9,
                "digest": "2dfeb1f26d6191d887699bed5d05f226d8baa25e2f81adcf1d5d9f3ce86c75c5",
                "file": "https://tenderiq.pl/rejestr/pieczec-9.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-9.txt.ots",
                "bitcoin_block": 974194
            }
        },
        {
            "version": 11,
            "recorded_at": "2026-11-02T01:45:48Z",
            "content": "{\"cpv\": \"39296100\", \"url\": \"https://platformazakupowa.pl/transakcja/1399843\", \"buyer\": \"Przedsiębiorstwo Wodociągów i Kanalizacji Sp. z o.o. w Gorzowie Wielkopolskim\", \"title\": \"Zapytanie ofertowe na zakup i dostawę 2 monitorów IIYAMA PROLITE LH5575UHS-B2AG 55 4K\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1399843\", \"deadline_at\": \"2026-11-02T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-27T23:00:00Z\", \"notice_number\": \"1399843\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3858444/zapytanie-ofertowe-na-zakup-i-dostawe-2-monitorow-iiyama-prolite-lh5575uhs-b2ag-55-4k\"}",
            "content_hash": "d4f0ffb785ff265cccb28a708bc1a137f601626d6af591baf738afb8e2346f43",
            "prev_hash": "ce91a1cf3e2584abee7e16ef0cf84d44c73c04c07c89c17059842a7a109eb435",
            "hash": "2861662cb15ef95aa9d48a7790e151e08928b0b4ee7b28cc69944dba033420c7",
            "actor": null,
            "seal": null
        },
        {
            "version": 12,
            "recorded_at": "2026-11-02T07:36:07Z",
            "content": "{\"cpv\": \"39296100\", \"url\": \"https://platformazakupowa.pl/transakcja/1399843\", \"buyer\": \"Przedsiębiorstwo Wodociągów i Kanalizacji Sp. z o.o. w Gorzowie Wielkopolskim\", \"title\": \"Zapytanie ofertowe na zakup i dostawę 2 monitorów IIYAMA PROLITE LH5575UHS-B2AG 55 4K\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1399843\", \"deadline_at\": \"2026-11-02T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-27T23:00:00Z\", \"notice_number\": \"1399843\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1399843\"}",
            "content_hash": "d76ca1389e53c1fc9778374878cc357054f2b20fa7489537f7d8bd4e13f0a491",
            "prev_hash": "2861662cb15ef95aa9d48a7790e151e08928b0b4ee7b28cc69944dba033420c7",
            "hash": "0c5e5f8329f87684489227dc959528c7a87331e8b659b2b8c318d0e9ef7f030f",
            "actor": null,
            "seal": null
        }
    ]
}