{
    "tender_id": 5022517,
    "check": {
        "ok": true,
        "versions": 3,
        "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": "2026-11-03T17:51:30Z",
            "content": "{\"cpv\": \"64110000\", \"url\": \"https://nfz-katowice.ezamawiajacy.pl/pn/nfz-katowice/demand/notice/public/241857/details\", \"buyer\": \"Śląski Oddział Wojewódzki Narodowego Funduszu Zdrowia\", \"title\": \"Świadczenie usług pocztowych w obrocie krajowym i zagranicznym\", \"source\": \"nfz_katowice_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"241857\", \"deadline_at\": \"2026-11-17T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-03T13:41:00Z\"}",
            "content_hash": "5471282c7e4a43c337d5e88abe48f8323dd3ce4b9d0a30ab44bf844705773fff",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "d5c74364e9852dcf2f6da7e91cc0715214f0e86c5c0a496f6cbc174e61548ab5",
            "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": "2026-11-03T18:45:22Z",
            "content": "{\"cpv\": \"64110000\", \"url\": \"https://nfz-katowice.ezamawiajacy.pl/pn/nfz-katowice/demand/notice/public/241857/details\", \"buyer\": \"Śląski Oddział Wojewódzki Narodowego Funduszu Zdrowia\", \"title\": \"Świadczenie usług pocztowych w obrocie krajowym i zagranicznym\", \"source\": \"nfz_katowice_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"241857\", \"deadline_at\": \"2026-11-17T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-03T13:41:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3867912/swiadczenie-uslug-pocztowych-w-obrocie-krajowym-i-zagranicznym-na-rzecz-urzedu-miasta-w-trzebini-na-2027-rok-\"}",
            "content_hash": "398b71a9ceb774d3552d4ae2b50af98b0856a7b5ef0a0e1e9c4303c834baff4a",
            "prev_hash": "d5c74364e9852dcf2f6da7e91cc0715214f0e86c5c0a496f6cbc174e61548ab5",
            "hash": "3547879ef6dcc97ed2fb38becb84c8567b5259a5938a041e26709da753a4d1e9",
            "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": "2026-11-03T19:34:54Z",
            "content": "{\"cpv\": \"64110000\", \"url\": \"https://nfz-katowice.ezamawiajacy.pl/pn/nfz-katowice/demand/notice/public/241857/details\", \"buyer\": \"Śląski Oddział Wojewódzki Narodowego Funduszu Zdrowia\", \"title\": \"Świadczenie usług pocztowych w obrocie krajowym i zagranicznym\", \"source\": \"nfz_katowice_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"241857\", \"deadline_at\": \"2026-11-17T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-03T13:41:00Z\", \"procedure_url\": \"https://nfz-katowice.ezamawiajacy.pl/pn/nfz-katowice/demand/notice/public/241857/details\"}",
            "content_hash": "3b7d93df09481a25847303f09127bc2ee0c19ed7aedea544438e4cee4d95b233",
            "prev_hash": "3547879ef6dcc97ed2fb38becb84c8567b5259a5938a041e26709da753a4d1e9",
            "hash": "f8344f85255d5226708643bf2637304c0a5ec98dcb7a2c2f7b1c1b55b795f693",
            "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
            }
        }
    ]
}