{
    "tender_id": 4138500,
    "check": {
        "ok": true,
        "versions": 11,
        "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": "2026-10-30T13:43:24Z",
            "content": "{\"cpv\": \"90620000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3864028/zimowe-utrzymanie-drog-gminnych-w-miescie-i-gminie-czarna-bialostocka-w-sezonie-zimowym-2026-2027-\", \"buyer\": \"Gmina Czarna Białostocka\", \"title\": \"Zimowe utrzymanie dróg gminnych w mieście i gminie Czarna Białostocka w sezonie zimowym 2026/2027.\", \"region\": \"podlaskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3864028\", \"deadline_at\": \"2026-11-09T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T13:43:26Z\"}",
            "content_hash": "fac4839b79ecf8c8f5fe9a3fb813e7b86fd1b84b17b19927961a424fe8b060e4",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "32c1b7be4ef4eaf0a8b62fdead76ebc9f51add99087b73f2389ae95778595a0a",
            "actor": null,
            "seal": {
                "id": 7,
                "digest": "a9f75e7ec6726860fada5c5807cac164b76cf44582f14a01cd7b4a36f579f813",
                "file": "https://tenderiq.pl/rejestr/pieczec-7.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-7.txt.ots",
                "bitcoin_block": 973897
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-30T14:45:37Z",
            "content": "{\"cpv\": \"90620000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3864028/zimowe-utrzymanie-drog-gminnych-w-miescie-i-gminie-czarna-bialostocka-w-sezonie-zimowym-2026-2027-\", \"buyer\": \"Gmina Czarna Białostocka\", \"title\": \"Zimowe utrzymanie dróg gminnych w mieście i gminie Czarna Białostocka w sezonie zimowym 2026/2027.\", \"region\": \"podlaskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3864028\", \"deadline_at\": \"2026-11-09T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T13:43:26Z\", \"procedure_url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3683-4a39-828d-e2d6-6b000120b7f4\"}",
            "content_hash": "a96ee90a010f078ca80d1ef844690e99d46f589ddf522b60ff1325281ffe6d8a",
            "prev_hash": "32c1b7be4ef4eaf0a8b62fdead76ebc9f51add99087b73f2389ae95778595a0a",
            "hash": "d470f8ef8ef3ef85ad5189f727f8019c4c6051efadaea85cd0726b4050c96eca",
            "actor": null,
            "seal": {
                "id": 7,
                "digest": "a9f75e7ec6726860fada5c5807cac164b76cf44582f14a01cd7b4a36f579f813",
                "file": "https://tenderiq.pl/rejestr/pieczec-7.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-7.txt.ots",
                "bitcoin_block": 973897
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-10-30T20:45:19Z",
            "content": "{\"cpv\": \"90620000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3864028/zimowe-utrzymanie-drog-gminnych-w-miescie-i-gminie-czarna-bialostocka-w-sezonie-zimowym-2026-2027-\", \"buyer\": \"Gmina Czarna Białostocka\", \"title\": \"Zimowe utrzymanie dróg gminnych w mieście i gminie Czarna Białostocka w sezonie zimowym 2026/2027.\", \"region\": \"podlaskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3864028\", \"deadline_at\": \"2026-11-09T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T13:43:26Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3864028/zimowe-utrzymanie-drog-gminnych-w-miescie-i-gminie-czarna-bialostocka-w-sezonie-zimowym-2026-2027-\"}",
            "content_hash": "a5c7abc68e83b2d1d7d792c4dfc7ddbd3ecae729c2805f328781d4abc5a7ec91",
            "prev_hash": "d470f8ef8ef3ef85ad5189f727f8019c4c6051efadaea85cd0726b4050c96eca",
            "hash": "7d1fb06c4fb5b7fc0d2ca7a52a73e7cc28ea743e64950a2f202979bf737a3064",
            "actor": null,
            "seal": {
                "id": 7,
                "digest": "a9f75e7ec6726860fada5c5807cac164b76cf44582f14a01cd7b4a36f579f813",
                "file": "https://tenderiq.pl/rejestr/pieczec-7.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-7.txt.ots",
                "bitcoin_block": 973897
            }
        },
        {
            "version": 4,
            "recorded_at": "2026-10-31T04:45:51Z",
            "content": "{\"cpv\": \"90620000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3864028/zimowe-utrzymanie-drog-gminnych-w-miescie-i-gminie-czarna-bialostocka-w-sezonie-zimowym-2026-2027-\", \"buyer\": \"Gmina Czarna Białostocka\", \"title\": \"Zimowe utrzymanie dróg gminnych w mieście i gminie Czarna Białostocka w sezonie zimowym 2026/2027.\", \"region\": \"podlaskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3864028\", \"deadline_at\": \"2026-11-09T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T13:43:26Z\", \"procedure_url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3683-4a39-828d-e2d6-6b000120b7f4\"}",
            "content_hash": "a96ee90a010f078ca80d1ef844690e99d46f589ddf522b60ff1325281ffe6d8a",
            "prev_hash": "7d1fb06c4fb5b7fc0d2ca7a52a73e7cc28ea743e64950a2f202979bf737a3064",
            "hash": "259f8bfae31faefa6f1d7edc04dc33327c65d00500093de4d9ed6ddca6d36175",
            "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": 5,
            "recorded_at": "2026-10-31T10:45:38Z",
            "content": "{\"cpv\": \"90620000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3864028/zimowe-utrzymanie-drog-gminnych-w-miescie-i-gminie-czarna-bialostocka-w-sezonie-zimowym-2026-2027-\", \"buyer\": \"Gmina Czarna Białostocka\", \"title\": \"Zimowe utrzymanie dróg gminnych w mieście i gminie Czarna Białostocka w sezonie zimowym 2026/2027.\", \"region\": \"podlaskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3864028\", \"deadline_at\": \"2026-11-09T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T13:43:26Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3864028/zimowe-utrzymanie-drog-gminnych-w-miescie-i-gminie-czarna-bialostocka-w-sezonie-zimowym-2026-2027-\"}",
            "content_hash": "a5c7abc68e83b2d1d7d792c4dfc7ddbd3ecae729c2805f328781d4abc5a7ec91",
            "prev_hash": "259f8bfae31faefa6f1d7edc04dc33327c65d00500093de4d9ed6ddca6d36175",
            "hash": "62f6693059f99f13b44621a624cfc8a66ebb565d4d0f0d329b775a3fab19d247",
            "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": "2026-10-31T17:45:16Z",
            "content": "{\"cpv\": \"90620000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3864028/zimowe-utrzymanie-drog-gminnych-w-miescie-i-gminie-czarna-bialostocka-w-sezonie-zimowym-2026-2027-\", \"buyer\": \"Gmina Czarna Białostocka\", \"title\": \"Zimowe utrzymanie dróg gminnych w mieście i gminie Czarna Białostocka w sezonie zimowym 2026/2027.\", \"region\": \"podlaskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3864028\", \"deadline_at\": \"2026-11-09T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T13:43:26Z\", \"procedure_url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3683-4a39-828d-e2d6-6b000120b7f4\"}",
            "content_hash": "a96ee90a010f078ca80d1ef844690e99d46f589ddf522b60ff1325281ffe6d8a",
            "prev_hash": "62f6693059f99f13b44621a624cfc8a66ebb565d4d0f0d329b775a3fab19d247",
            "hash": "02e08284381271933b0f027495144758925d10340f4456912869513d1b95edfe",
            "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": "2026-11-01T00:45:52Z",
            "content": "{\"cpv\": \"90620000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3864028/zimowe-utrzymanie-drog-gminnych-w-miescie-i-gminie-czarna-bialostocka-w-sezonie-zimowym-2026-2027-\", \"buyer\": \"Gmina Czarna Białostocka\", \"title\": \"Zimowe utrzymanie dróg gminnych w mieście i gminie Czarna Białostocka w sezonie zimowym 2026/2027.\", \"region\": \"podlaskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3864028\", \"deadline_at\": \"2026-11-09T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T13:43:26Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3864028/zimowe-utrzymanie-drog-gminnych-w-miescie-i-gminie-czarna-bialostocka-w-sezonie-zimowym-2026-2027-\"}",
            "content_hash": "a5c7abc68e83b2d1d7d792c4dfc7ddbd3ecae729c2805f328781d4abc5a7ec91",
            "prev_hash": "02e08284381271933b0f027495144758925d10340f4456912869513d1b95edfe",
            "hash": "782035cdaf6eac334fd5474c4bbbc59eef39a389a16b31db215ff19cac72be5f",
            "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": 8,
            "recorded_at": "2026-11-01T06:45:23Z",
            "content": "{\"cpv\": \"90620000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3864028/zimowe-utrzymanie-drog-gminnych-w-miescie-i-gminie-czarna-bialostocka-w-sezonie-zimowym-2026-2027-\", \"buyer\": \"Gmina Czarna Białostocka\", \"title\": \"Zimowe utrzymanie dróg gminnych w mieście i gminie Czarna Białostocka w sezonie zimowym 2026/2027.\", \"region\": \"podlaskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3864028\", \"deadline_at\": \"2026-11-09T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T13:43:26Z\", \"procedure_url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3683-4a39-828d-e2d6-6b000120b7f4\"}",
            "content_hash": "a96ee90a010f078ca80d1ef844690e99d46f589ddf522b60ff1325281ffe6d8a",
            "prev_hash": "782035cdaf6eac334fd5474c4bbbc59eef39a389a16b31db215ff19cac72be5f",
            "hash": "6f9881b33dbe7fb5fa9d6b612cc98a2fa6d4132c209f2082e8f8e0b20783fa85",
            "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": 9,
            "recorded_at": "2026-11-02T01:45:24Z",
            "content": "{\"cpv\": \"90620000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3864028/zimowe-utrzymanie-drog-gminnych-w-miescie-i-gminie-czarna-bialostocka-w-sezonie-zimowym-2026-2027-\", \"buyer\": \"Gmina Czarna Białostocka\", \"title\": \"Zimowe utrzymanie dróg gminnych w mieście i gminie Czarna Białostocka w sezonie zimowym 2026/2027.\", \"region\": \"podlaskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3864028\", \"deadline_at\": \"2026-11-09T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T13:43:26Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3864028/zimowe-utrzymanie-drog-gminnych-w-miescie-i-gminie-czarna-bialostocka-w-sezonie-zimowym-2026-2027-\"}",
            "content_hash": "a5c7abc68e83b2d1d7d792c4dfc7ddbd3ecae729c2805f328781d4abc5a7ec91",
            "prev_hash": "6f9881b33dbe7fb5fa9d6b612cc98a2fa6d4132c209f2082e8f8e0b20783fa85",
            "hash": "fb33f5a0e18e011165f1820dbd59cfd124d04abfa097ebf453e01af5eee944c0",
            "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": 10,
            "recorded_at": "2026-11-02T07:36:00Z",
            "content": "{\"cpv\": \"90620000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3864028/zimowe-utrzymanie-drog-gminnych-w-miescie-i-gminie-czarna-bialostocka-w-sezonie-zimowym-2026-2027-\", \"buyer\": \"Gmina Czarna Białostocka\", \"title\": \"Zimowe utrzymanie dróg gminnych w mieście i gminie Czarna Białostocka w sezonie zimowym 2026/2027.\", \"region\": \"podlaskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3864028\", \"deadline_at\": \"2026-11-09T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T13:43:26Z\", \"procedure_url\": \"https://ezamowienia.gov.pl/mo-client-board/bzp/notice-details/id/08df3683-4a39-828d-e2d6-6b000120b7f4\"}",
            "content_hash": "a96ee90a010f078ca80d1ef844690e99d46f589ddf522b60ff1325281ffe6d8a",
            "prev_hash": "fb33f5a0e18e011165f1820dbd59cfd124d04abfa097ebf453e01af5eee944c0",
            "hash": "6ce0f3eee16370af9be6a1fb9f5bf611ba341c9c7222e0c06d628497f9abfc83",
            "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": 11,
            "recorded_at": "2026-11-02T13:46:12Z",
            "content": "{\"cpv\": \"90620000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3864028/zimowe-utrzymanie-drog-gminnych-w-miescie-i-gminie-czarna-bialostocka-w-sezonie-zimowym-2026-2027-\", \"buyer\": \"Gmina Czarna Białostocka\", \"title\": \"Zimowe utrzymanie dróg gminnych w mieście i gminie Czarna Białostocka w sezonie zimowym 2026/2027.\", \"region\": \"podlaskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3864028\", \"deadline_at\": \"2026-11-09T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T13:43:26Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3864028/zimowe-utrzymanie-drog-gminnych-w-miescie-i-gminie-czarna-bialostocka-w-sezonie-zimowym-2026-2027-\"}",
            "content_hash": "a5c7abc68e83b2d1d7d792c4dfc7ddbd3ecae729c2805f328781d4abc5a7ec91",
            "prev_hash": "6ce0f3eee16370af9be6a1fb9f5bf611ba341c9c7222e0c06d628497f9abfc83",
            "hash": "eb8441bee1529c7580f1dcf6a1196106cfa54c6cc8d559de8623cd61c5c23d0a",
            "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
            }
        }
    ]
}