{
    "tender_id": 1466478,
    "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": "2026-10-24T13:58:39Z",
            "content": "{\"cpv\": \"50530000\", \"url\": \"https://platformazakupowa.pl/transakcja/1392130\", \"buyer\": \"MASTER - Odpady i Energia Sp. z o.o.\", \"title\": \"OLS/10/2026 r. WYPRZEDAŻ KABINY SORTOWNICZEJ\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1392130\", \"deadline_at\": \"2026-11-02T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-15T08:23:00Z\", \"notice_number\": \"1392130\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1392130\"}",
            "content_hash": "aefcc8d0d07c537ac3fb1fd38e333b951412b51cf91a4440e33bcf2ca3ca28e4",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "1e0fea86cbee841c6bc0fd7042129d357e73a6e1b95b995c795b6065136d47dc",
            "actor": null,
            "seal": {
                "id": 1,
                "digest": "25686b149cfd327de10f8db2827c82e22b0d6a884d716cd11b36328364d6937d",
                "file": "https://tenderiq.pl/rejestr/pieczec-1.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-1.txt.ots",
                "bitcoin_block": 972985
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-02T09:50:25Z",
            "content": "{\"cpv\": \"50530000\", \"url\": \"https://platformazakupowa.pl/transakcja/1392130\", \"buyer\": \"MASTER - Odpady i Energia Sp. z o.o.\", \"title\": \"WYPRZEDAŻ KABINY SORTOWNICZEJ\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1392130\", \"deadline_at\": \"2026-11-10T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-15T08:23:00Z\", \"notice_number\": \"1392130\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1392130\"}",
            "content_hash": "a4f4549c5fa8f6867bc158d8e0483ec02ff8af46d5465292d492e5cf712b1f80",
            "prev_hash": "1e0fea86cbee841c6bc0fd7042129d357e73a6e1b95b995c795b6065136d47dc",
            "hash": "9666d6edcf3e71e826466b4f340c958e4ff210a41951849046a1b0587f6cd3dd",
            "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": 3,
            "recorded_at": "2026-11-02T10:45:28Z",
            "content": "{\"cpv\": \"50530000\", \"url\": \"https://platformazakupowa.pl/transakcja/1392130\", \"buyer\": \"MASTER - Odpady i Energia Sp. z o.o.\", \"title\": \"WYPRZEDAŻ KABINY SORTOWNICZEJ\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1392130\", \"deadline_at\": \"2026-11-10T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-15T08:23:00Z\", \"notice_number\": \"1392130\"}",
            "content_hash": "e557a522355111ad8f35a58b1c24b3863e589261e64ab3463fa8be7719aa80ea",
            "prev_hash": "9666d6edcf3e71e826466b4f340c958e4ff210a41951849046a1b0587f6cd3dd",
            "hash": "fe5980e6215315c9c5115c089d30afff7b0727c2bd1acb3c5f4836e713e0c17d",
            "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": 4,
            "recorded_at": "2026-11-03T02:45:37Z",
            "content": "{\"cpv\": \"50530000\", \"url\": \"https://platformazakupowa.pl/transakcja/1392130\", \"buyer\": \"MASTER - Odpady i Energia Sp. z o.o.\", \"title\": \"WYPRZEDAŻ KABINY SORTOWNICZEJ\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1392130\", \"deadline_at\": \"2026-11-10T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-15T08:23:00Z\", \"notice_number\": \"1392130\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1392130\"}",
            "content_hash": "a4f4549c5fa8f6867bc158d8e0483ec02ff8af46d5465292d492e5cf712b1f80",
            "prev_hash": "fe5980e6215315c9c5115c089d30afff7b0727c2bd1acb3c5f4836e713e0c17d",
            "hash": "e11293243ce7416a395791c930bdbaebc1290ab4d4a8964f1138ba656189b4b4",
            "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
            }
        }
    ]
}