{
    "tender_id": 5041571,
    "check": {
        "ok": true,
        "versions": 4,
        "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": "2026-11-03T20:16:32Z",
            "content": "{\"url\": \"https://platformazakupowa.pl/transakcja/1402837\", \"buyer\": \"Przedsiębiorstwo Gospodarki Komunalnej „Żyrardów” Sp. z o. o.\", \"title\": \"ZW/0011/26/PK Dostawa artykułów biurowych do PGK\\\"Żyrardów\\\" Sp. z o.o.\", \"region\": \"mazowieckie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1402837\", \"deadline_at\": \"2026-11-05T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-03T09:47:00Z\", \"notice_number\": \"1402837\"}",
            "content_hash": "7d1a034a0f42c8b36b43a9c136d4d67685d6df84f6bb17fc35a9521928f91bf2",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "e7851d872e81e2a67f89308ba750d283b0bdf59337071fe394d1bb496f9e0e9f",
            "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": 2,
            "recorded_at": "2026-11-03T20:45:27Z",
            "content": "{\"url\": \"https://platformazakupowa.pl/transakcja/1402837\", \"buyer\": \"Przedsiębiorstwo Gospodarki Komunalnej „Żyrardów” Sp. z o. o.\", \"title\": \"ZW/0011/26/PK Dostawa artykułów biurowych do PGK\\\"Żyrardów\\\" Sp. z o.o.\", \"region\": \"mazowieckie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1402837\", \"deadline_at\": \"2026-11-05T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-03T09:47:00Z\", \"notice_number\": \"1402837\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3869218/dostawa-artykulow-biurowych-do-pgk-zyrardow-sp-z-o-o-\"}",
            "content_hash": "33830aeca3967c935a6d261eb03ed7570d48c38019cc32fea09304ed12a8bce2",
            "prev_hash": "e7851d872e81e2a67f89308ba750d283b0bdf59337071fe394d1bb496f9e0e9f",
            "hash": "5711b5885ecd9caa02f3be00b1db1fd1bb3e15f4f24617ab8a5f9120336fd071",
            "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": 3,
            "recorded_at": "2026-11-03T21:46:02Z",
            "content": "{\"url\": \"https://platformazakupowa.pl/transakcja/1402837\", \"buyer\": \"Przedsiębiorstwo Gospodarki Komunalnej „Żyrardów” Sp. z o. o.\", \"title\": \"ZW/0011/26/PK Dostawa artykułów biurowych do PGK\\\"Żyrardów\\\" Sp. z o.o.\", \"region\": \"mazowieckie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1402837\", \"deadline_at\": \"2026-11-05T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-03T09:47:00Z\", \"notice_number\": \"1402837\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1402837\"}",
            "content_hash": "a28fe97aad65001116661dffcc7239ad5c070b88ed31e3619aa4c9d70d8252fe",
            "prev_hash": "5711b5885ecd9caa02f3be00b1db1fd1bb3e15f4f24617ab8a5f9120336fd071",
            "hash": "044a0244cd086aa27bbab02053c6e20ec085b2e186cd649d4278384d9d098a86",
            "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": 4,
            "recorded_at": "2026-11-04T10:46:28Z",
            "content": "{\"url\": \"https://platformazakupowa.pl/transakcja/1402837\", \"buyer\": \"Przedsiębiorstwo Gospodarki Komunalnej „Żyrardów” Sp. z o. o.\", \"title\": \"ZW/0011/26/PK Dostawa artykułów biurowych do PGK\\\"Żyrardów\\\" Sp. z o.o.\", \"region\": \"mazowieckie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1402837\", \"deadline_at\": \"2026-11-05T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-03T09:47:00Z\", \"notice_number\": \"1402837\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3869218/dostawa-artykulow-biurowych-do-pgk-zyrardow-sp-z-o-o-\"}",
            "content_hash": "33830aeca3967c935a6d261eb03ed7570d48c38019cc32fea09304ed12a8bce2",
            "prev_hash": "044a0244cd086aa27bbab02053c6e20ec085b2e186cd649d4278384d9d098a86",
            "hash": "b390843bbc70b6664ef198d98e2c79fedde2d83510fbd15585a83ac49fd4a494",
            "actor": null,
            "seal": null
        }
    ]
}