{
    "tender_id": 5230446,
    "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": "2026-11-04T17:52:51Z",
            "content": "{\"cpv\": \"33652100\", \"url\": \"https://zwcpit.ezamawiajacy.pl/pn/ZWCPIT/demand/notice/public/242074/details\", \"buyer\": \"Wielkopolskie Centrum Pulmonologii i Torakochirurgii im. Eugenii i Janusza Zeylandów\", \"title\": \"Dostawa leku Serplulimab.\", \"region\": \"wielkopolskie\", \"source\": \"zwcpit_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"242074\", \"deadline_at\": \"2026-11-13T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-04T12:42:00Z\"}",
            "content_hash": "4f82e9c8047deaa1b4abbe1560ec09fc14e0893886f636efde78ba43164adae1",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "b4d563bf17e3c18a844cb70b41692d6a54ac84c0586d120bd096a3ec8ba914c4",
            "actor": null,
            "seal": {
                "id": 12,
                "digest": "e23c0f5a7e440e937f514487a150dc1be40887f39a941304e364e5e94a4b77fc",
                "file": "https://tenderiq.pl/rejestr/pieczec-12.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-12.txt.ots",
                "bitcoin_block": 974604
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-04T18:45:19Z",
            "content": "{\"cpv\": \"33652100\", \"url\": \"https://zwcpit.ezamawiajacy.pl/pn/ZWCPIT/demand/notice/public/242074/details\", \"buyer\": \"Wielkopolskie Centrum Pulmonologii i Torakochirurgii im. Eugenii i Janusza Zeylandów\", \"title\": \"Dostawa leku Serplulimab.\", \"region\": \"wielkopolskie\", \"source\": \"zwcpit_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"242074\", \"deadline_at\": \"2026-11-13T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-04T12:42:00Z\", \"procedure_url\": \"https://zwcpit.ezamawiajacy.pl/pn/ZWCPIT/demand/notice/public/242074/details\"}",
            "content_hash": "e586ed7c3e4c5e4afff23c61cc534665f5225608a5b26fc4cce0e384e861eeec",
            "prev_hash": "b4d563bf17e3c18a844cb70b41692d6a54ac84c0586d120bd096a3ec8ba914c4",
            "hash": "8acc8cbb17d3eaefe737382857f05a4a9a7f6e7e3bd517257affa962a18cbad7",
            "actor": null,
            "seal": {
                "id": 12,
                "digest": "e23c0f5a7e440e937f514487a150dc1be40887f39a941304e364e5e94a4b77fc",
                "file": "https://tenderiq.pl/rejestr/pieczec-12.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-12.txt.ots",
                "bitcoin_block": 974604
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-11-04T19:36:10Z",
            "content": "{\"cpv\": \"33652100\", \"url\": \"https://zwcpit.ezamawiajacy.pl/pn/ZWCPIT/demand/notice/public/242074/details\", \"buyer\": \"Wielkopolskie Centrum Pulmonologii i Torakochirurgii im. Eugenii i Janusza Zeylandów\", \"title\": \"Dostawa leku Serplulimab.\", \"region\": \"wielkopolskie\", \"source\": \"zwcpit_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"242074\", \"deadline_at\": \"2026-11-13T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-04T12:42:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3873129/dostawa-leku-serplulimab-\"}",
            "content_hash": "b73c28987f0c1927d20e417fff1013ec7e65a5835567c7ad409eb5eaaea57d98",
            "prev_hash": "8acc8cbb17d3eaefe737382857f05a4a9a7f6e7e3bd517257affa962a18cbad7",
            "hash": "4e2d84d119e45ce9c76b6636254f9b3a7156860179ba1f0c48c674c7170c1dd1",
            "actor": null,
            "seal": {
                "id": 12,
                "digest": "e23c0f5a7e440e937f514487a150dc1be40887f39a941304e364e5e94a4b77fc",
                "file": "https://tenderiq.pl/rejestr/pieczec-12.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-12.txt.ots",
                "bitcoin_block": 974604
            }
        },
        {
            "version": 4,
            "recorded_at": "2026-11-05T10:44:19Z",
            "content": "{\"cpv\": \"33600000\", \"url\": \"https://zwcpit.ezamawiajacy.pl/pn/ZWCPIT/demand/notice/public/242074/details\", \"buyer\": \"Wielkopolskie Centrum Pulmonologii i Torakochirurgii im. Eugenii i Janusza Zeylandów\", \"title\": \"Dostawa leku Serplulimab.\", \"region\": \"wielkopolskie\", \"source\": \"zwcpit_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"242074\", \"deadline_at\": \"2026-11-13T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-04T12:42:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3873129/dostawa-leku-serplulimab-\"}",
            "content_hash": "35b4faa8517fc6645a0ac95940f6dd8d243fded408b395a0a64593e8c4312903",
            "prev_hash": "4e2d84d119e45ce9c76b6636254f9b3a7156860179ba1f0c48c674c7170c1dd1",
            "hash": "9f3fa0bbdf8ab417e7a836c73934c2df67ce17dbc8b2a06034a4aaacad3b7680",
            "actor": null,
            "seal": {
                "id": 13,
                "digest": "88eaa47ed54f178cca07f94ec9f0c5d48c105c008cf249a9e53ac4ca63161903",
                "file": "https://tenderiq.pl/rejestr/pieczec-13.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-13.txt.ots",
                "bitcoin_block": 974729
            }
        }
    ]
}