{
    "tender_id": 3955855,
    "check": {
        "ok": true,
        "versions": 14,
        "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": "2026-10-29T14:20:14Z",
            "content": "{\"cpv\": \"60112000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df35bf-773b-7179-cfcf-e60001c066c0\", \"buyer\": \"GMINA ŻYCHLIN\", \"title\": \"Dowóz uczniów do szkół i przedszkoli w roku 2027 dla Gminy Żychlin\", \"region\": \"lodzkie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Żychlin, łódzkie\", \"buyer_nip\": \"7752406961\", \"source_id\": \"2026/BZP 00509719/01\", \"deadline_at\": \"2026-11-10T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T13:20:56Z\", \"notice_number\": \"2026/BZP 00509719/01\"}",
            "content_hash": "afbe3f9cfd38230fcc8efd299926e13212c05133e87e61c0c8aded610b84e69f",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "cc13139f9da29ce57524165cdc721f8d2b5526fd20ce82d87bd10f9a810c8c24",
            "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": 2,
            "recorded_at": "2026-10-29T16:23:30Z",
            "content": "{\"cpv\": \"60100000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df35bf-773b-7179-cfcf-e60001c066c0\", \"buyer\": \"GMINA ŻYCHLIN\", \"title\": \"Dowóz uczniów do szkół i przedszkoli w roku 2027 dla Gminy Żychlin\", \"region\": \"lodzkie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Żychlin, łódzkie\", \"source_id\": \"2026/BZP 00509719/01\", \"deadline_at\": \"2026-11-10T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T13:20:56Z\", \"notice_number\": \"2026/BZP 00509719/01\"}",
            "content_hash": "0dfc0af1b61bd88934ce9d010d8261c5ee4ce35aa954abd01756f3c306896396",
            "prev_hash": "cc13139f9da29ce57524165cdc721f8d2b5526fd20ce82d87bd10f9a810c8c24",
            "hash": "a4960cbe1abdf1ff15a19e9dda5ab97bc65bef03ef2712ec09e9b0dd3ae6e49c",
            "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": 3,
            "recorded_at": "2026-10-29T19:29:01Z",
            "content": "{\"cpv\": \"60112000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df35bf-773b-7179-cfcf-e60001c066c0\", \"buyer\": \"GMINA ŻYCHLIN\", \"title\": \"Dowóz uczniów do szkół i przedszkoli w roku 2027 dla Gminy Żychlin\", \"region\": \"lodzkie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Żychlin, łódzkie\", \"buyer_nip\": \"7752406961\", \"source_id\": \"2026/BZP 00509719/01\", \"deadline_at\": \"2026-11-10T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T13:20:56Z\", \"notice_number\": \"2026/BZP 00509719/01\"}",
            "content_hash": "afbe3f9cfd38230fcc8efd299926e13212c05133e87e61c0c8aded610b84e69f",
            "prev_hash": "a4960cbe1abdf1ff15a19e9dda5ab97bc65bef03ef2712ec09e9b0dd3ae6e49c",
            "hash": "790bad1709d4a10d36a3e27937628197b8da270da397312f8503e9f9036b47e9",
            "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": "2026-10-29T19:45:59Z",
            "content": "{\"cpv\": \"60112000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df35bf-773b-7179-cfcf-e60001c066c0\", \"buyer\": \"GMINA ŻYCHLIN\", \"title\": \"Dowóz uczniów do szkół i przedszkoli w roku 2027 dla Gminy Żychlin\", \"region\": \"lodzkie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Żychlin, łódzkie\", \"buyer_nip\": \"7752406961\", \"source_id\": \"2026/BZP 00509719/01\", \"deadline_at\": \"2026-11-10T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T13:20:56Z\", \"notice_number\": \"2026/BZP 00509719/01\", \"procedure_url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df35bf-773b-7179-cfcf-e60001c066c0\"}",
            "content_hash": "90d75b66be92b7943389fda5526f8fbeeb8c6d25449474e99e5675460cb3af08",
            "prev_hash": "790bad1709d4a10d36a3e27937628197b8da270da397312f8503e9f9036b47e9",
            "hash": "bc4e67e0cb190c0d5e14f7932ae264efc7d9f171adf6214b188321e7f77092f4",
            "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": "2026-10-29T20:45:50Z",
            "content": "{\"cpv\": \"60112000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df35bf-773b-7179-cfcf-e60001c066c0\", \"buyer\": \"GMINA ŻYCHLIN\", \"title\": \"Dowóz uczniów do szkół i przedszkoli w roku 2027 dla Gminy Żychlin\", \"region\": \"lodzkie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Żychlin, łódzkie\", \"buyer_nip\": \"7752406961\", \"source_id\": \"2026/BZP 00509719/01\", \"deadline_at\": \"2026-11-10T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T13:20:56Z\", \"notice_number\": \"2026/BZP 00509719/01\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3861294/dowoz-uczniow-do-szkol-i-przedszkoli-w-roku-2027-dla-gminy-zychlin\"}",
            "content_hash": "86e21c5b8363256dd70fe86486bb949a1546ff2ea9470b7326155f0700d987bf",
            "prev_hash": "bc4e67e0cb190c0d5e14f7932ae264efc7d9f171adf6214b188321e7f77092f4",
            "hash": "97038b36f9192fbf4970452a5310fc7fe3341479dd77f4372c2db98dc30244b2",
            "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": "2026-10-30T00:40:04Z",
            "content": "{\"cpv\": \"60100000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df35bf-773b-7179-cfcf-e60001c066c0\", \"buyer\": \"GMINA ŻYCHLIN\", \"title\": \"Dowóz uczniów do szkół i przedszkoli w roku 2027 dla Gminy Żychlin\", \"region\": \"lodzkie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Żychlin, łódzkie\", \"source_id\": \"2026/BZP 00509719/01\", \"deadline_at\": \"2026-11-10T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T13:20:56Z\", \"notice_number\": \"2026/BZP 00509719/01\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3861294/dowoz-uczniow-do-szkol-i-przedszkoli-w-roku-2027-dla-gminy-zychlin\"}",
            "content_hash": "03883a4c383a136d70bd390e2169e572dff8ab77e7b4fd81b6da7055a091c43f",
            "prev_hash": "97038b36f9192fbf4970452a5310fc7fe3341479dd77f4372c2db98dc30244b2",
            "hash": "34778f66dba4e891830742e67417236f6a02398ba6d149a8aabfbfdf81ae7a7c",
            "actor": null,
            "seal": null
        },
        {
            "version": 7,
            "recorded_at": "2026-10-30T02:40:52Z",
            "content": "{\"cpv\": \"60112000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df35bf-773b-7179-cfcf-e60001c066c0\", \"buyer\": \"GMINA ŻYCHLIN\", \"title\": \"Dowóz uczniów do szkół i przedszkoli w roku 2027 dla Gminy Żychlin\", \"region\": \"lodzkie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Żychlin, łódzkie\", \"buyer_nip\": \"7752406961\", \"source_id\": \"2026/BZP 00509719/01\", \"deadline_at\": \"2026-11-10T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T13:20:56Z\", \"notice_number\": \"2026/BZP 00509719/01\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3861294/dowoz-uczniow-do-szkol-i-przedszkoli-w-roku-2027-dla-gminy-zychlin\"}",
            "content_hash": "86e21c5b8363256dd70fe86486bb949a1546ff2ea9470b7326155f0700d987bf",
            "prev_hash": "34778f66dba4e891830742e67417236f6a02398ba6d149a8aabfbfdf81ae7a7c",
            "hash": "ab25dd8e3d46b5f7c817b5a3a6b3c074bd0c06bbc06c1fbb7e9860a7ab56b43e",
            "actor": null,
            "seal": null
        },
        {
            "version": 8,
            "recorded_at": "2026-10-30T05:42:16Z",
            "content": "{\"cpv\": \"60100000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df35bf-773b-7179-cfcf-e60001c066c0\", \"buyer\": \"GMINA ŻYCHLIN\", \"title\": \"Dowóz uczniów do szkół i przedszkoli w roku 2027 dla Gminy Żychlin\", \"region\": \"lodzkie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Żychlin, łódzkie\", \"source_id\": \"2026/BZP 00509719/01\", \"deadline_at\": \"2026-11-10T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T13:20:56Z\", \"notice_number\": \"2026/BZP 00509719/01\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3861294/dowoz-uczniow-do-szkol-i-przedszkoli-w-roku-2027-dla-gminy-zychlin\"}",
            "content_hash": "03883a4c383a136d70bd390e2169e572dff8ab77e7b4fd81b6da7055a091c43f",
            "prev_hash": "ab25dd8e3d46b5f7c817b5a3a6b3c074bd0c06bbc06c1fbb7e9860a7ab56b43e",
            "hash": "b5d071f7832786ee137b4034d9cf2bd425e05bada240e6b33e222e0a07ef6b78",
            "actor": null,
            "seal": null
        },
        {
            "version": 9,
            "recorded_at": "2026-10-30T06:42:53Z",
            "content": "{\"cpv\": \"60112000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df35bf-773b-7179-cfcf-e60001c066c0\", \"buyer\": \"GMINA ŻYCHLIN\", \"title\": \"Dowóz uczniów do szkół i przedszkoli w roku 2027 dla Gminy Żychlin\", \"region\": \"lodzkie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Żychlin, łódzkie\", \"buyer_nip\": \"7752406961\", \"source_id\": \"2026/BZP 00509719/01\", \"deadline_at\": \"2026-11-10T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T13:20:56Z\", \"notice_number\": \"2026/BZP 00509719/01\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3861294/dowoz-uczniow-do-szkol-i-przedszkoli-w-roku-2027-dla-gminy-zychlin\"}",
            "content_hash": "86e21c5b8363256dd70fe86486bb949a1546ff2ea9470b7326155f0700d987bf",
            "prev_hash": "b5d071f7832786ee137b4034d9cf2bd425e05bada240e6b33e222e0a07ef6b78",
            "hash": "baa7b3013280d15cbd506d2ee0931c389469911f2378d00939151073e84fec3e",
            "actor": null,
            "seal": null
        },
        {
            "version": 10,
            "recorded_at": "2026-10-30T10:50:16Z",
            "content": "{\"cpv\": \"60100000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df35bf-773b-7179-cfcf-e60001c066c0\", \"buyer\": \"GMINA ŻYCHLIN\", \"title\": \"Dowóz uczniów do szkół i przedszkoli w roku 2027 dla Gminy Żychlin\", \"region\": \"lodzkie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Żychlin, łódzkie\", \"source_id\": \"2026/BZP 00509719/01\", \"deadline_at\": \"2026-11-10T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T13:20:56Z\", \"notice_number\": \"2026/BZP 00509719/01\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3861294/dowoz-uczniow-do-szkol-i-przedszkoli-w-roku-2027-dla-gminy-zychlin\"}",
            "content_hash": "03883a4c383a136d70bd390e2169e572dff8ab77e7b4fd81b6da7055a091c43f",
            "prev_hash": "baa7b3013280d15cbd506d2ee0931c389469911f2378d00939151073e84fec3e",
            "hash": "3567bc22cd11cd4fb5b341382d061c358e598de9245ed6e8829dfbea44077521",
            "actor": null,
            "seal": null
        },
        {
            "version": 11,
            "recorded_at": "2026-10-30T11:54:23Z",
            "content": "{\"cpv\": \"60112000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df35bf-773b-7179-cfcf-e60001c066c0\", \"buyer\": \"GMINA ŻYCHLIN\", \"title\": \"Dowóz uczniów do szkół i przedszkoli w roku 2027 dla Gminy Żychlin\", \"region\": \"lodzkie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Żychlin, łódzkie\", \"buyer_nip\": \"7752406961\", \"source_id\": \"2026/BZP 00509719/01\", \"deadline_at\": \"2026-11-10T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T13:20:56Z\", \"notice_number\": \"2026/BZP 00509719/01\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3861294/dowoz-uczniow-do-szkol-i-przedszkoli-w-roku-2027-dla-gminy-zychlin\"}",
            "content_hash": "86e21c5b8363256dd70fe86486bb949a1546ff2ea9470b7326155f0700d987bf",
            "prev_hash": "3567bc22cd11cd4fb5b341382d061c358e598de9245ed6e8829dfbea44077521",
            "hash": "3d5de43a43dca98667e853c58cddf14d459a2ed1ae5a3c304d4c7da308f8f192",
            "actor": null,
            "seal": null
        },
        {
            "version": 12,
            "recorded_at": "2026-10-30T15:12:42Z",
            "content": "{\"cpv\": \"60100000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df35bf-773b-7179-cfcf-e60001c066c0\", \"buyer\": \"GMINA ŻYCHLIN\", \"title\": \"Dowóz uczniów do szkół i przedszkoli w roku 2027 dla Gminy Żychlin\", \"region\": \"lodzkie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Żychlin, łódzkie\", \"source_id\": \"2026/BZP 00509719/01\", \"deadline_at\": \"2026-11-10T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T13:20:56Z\", \"notice_number\": \"2026/BZP 00509719/01\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3861294/dowoz-uczniow-do-szkol-i-przedszkoli-w-roku-2027-dla-gminy-zychlin\"}",
            "content_hash": "03883a4c383a136d70bd390e2169e572dff8ab77e7b4fd81b6da7055a091c43f",
            "prev_hash": "3d5de43a43dca98667e853c58cddf14d459a2ed1ae5a3c304d4c7da308f8f192",
            "hash": "d1a074f8c4e590b3065c4a7c8f52178524a0598198de39c3165664fbb372fd21",
            "actor": null,
            "seal": null
        },
        {
            "version": 13,
            "recorded_at": "2026-10-30T17:24:38Z",
            "content": "{\"cpv\": \"60112000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df35bf-773b-7179-cfcf-e60001c066c0\", \"buyer\": \"GMINA ŻYCHLIN\", \"title\": \"Dowóz uczniów do szkół i przedszkoli w roku 2027 dla Gminy Żychlin\", \"region\": \"lodzkie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Żychlin, łódzkie\", \"buyer_nip\": \"7752406961\", \"source_id\": \"2026/BZP 00509719/01\", \"deadline_at\": \"2026-11-10T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T13:20:56Z\", \"notice_number\": \"2026/BZP 00509719/01\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3861294/dowoz-uczniow-do-szkol-i-przedszkoli-w-roku-2027-dla-gminy-zychlin\"}",
            "content_hash": "86e21c5b8363256dd70fe86486bb949a1546ff2ea9470b7326155f0700d987bf",
            "prev_hash": "d1a074f8c4e590b3065c4a7c8f52178524a0598198de39c3165664fbb372fd21",
            "hash": "dcdba001444cf9360c31f00ff64fd61d03614ee9b33f70f8264673bbb7bea6bb",
            "actor": null,
            "seal": null
        },
        {
            "version": 14,
            "recorded_at": "2026-10-30T22:59:58Z",
            "content": "{\"cpv\": \"60100000\", \"url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df35bf-773b-7179-cfcf-e60001c066c0\", \"buyer\": \"GMINA ŻYCHLIN\", \"title\": \"Dowóz uczniów do szkół i przedszkoli w roku 2027 dla Gminy Żychlin\", \"region\": \"lodzkie\", \"source\": \"ezamowienia_notices\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Żychlin, łódzkie\", \"source_id\": \"2026/BZP 00509719/01\", \"deadline_at\": \"2026-11-10T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T13:20:56Z\", \"notice_number\": \"2026/BZP 00509719/01\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3861294/dowoz-uczniow-do-szkol-i-przedszkoli-w-roku-2027-dla-gminy-zychlin\"}",
            "content_hash": "03883a4c383a136d70bd390e2169e572dff8ab77e7b4fd81b6da7055a091c43f",
            "prev_hash": "dcdba001444cf9360c31f00ff64fd61d03614ee9b33f70f8264673bbb7bea6bb",
            "hash": "2b1c00f647c254fb975ee15f6da190f2b946407514fd37aa0d36ec8a56619a41",
            "actor": null,
            "seal": null
        }
    ]
}