{
    "tender_id": 4931421,
    "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": "2026-11-03T06:22:54Z",
            "content": "{\"cpv\": \"24111500\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/762197-2026\", \"buyer\": \"Krakowski Szpital Specjalistyczny im. św. Jana Pawła II\", \"title\": \"Polska – Gazy medyczne – Dostawa gazów medycznych wraz z dzierżawą zbiorników i butli\", \"region\": \"malopolskie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"PL213, PL213, POL, POL, PL213, PL213, PL213, PL213, POL, POL, POL, POL\", \"buyer_nip\": \"6771694570\", \"source_id\": \"762197-2026\", \"deadline_at\": \"2026-11-10T08:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-11-03T01:00:00Z\"}",
            "content_hash": "a34b26c5a2b75804a9aa8fc036f4b6084d59ad8b17761adf45fadc6eeff94308",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "ef9d5b13c522c5cf42520036246c29a4a2783235f6643532697d0bfbbbe45d60",
            "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": "2026-11-03T06:45:30Z",
            "content": "{\"cpv\": \"24111500\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/762197-2026\", \"buyer\": \"Krakowski Szpital Specjalistyczny im. św. Jana Pawła II\", \"title\": \"Polska – Gazy medyczne – Dostawa gazów medycznych wraz z dzierżawą zbiorników i butli\", \"region\": \"malopolskie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"PL213, PL213, POL, POL, PL213, PL213, PL213, PL213, POL, POL, POL, POL\", \"buyer_nip\": \"6771694570\", \"source_id\": \"762197-2026\", \"deadline_at\": \"2026-11-10T08:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-11-03T01:00:00Z\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1365465\"}",
            "content_hash": "436190721d3b1b265d9469e7cc7db91285818c9ecb1adfa95d1af015385b418f",
            "prev_hash": "ef9d5b13c522c5cf42520036246c29a4a2783235f6643532697d0bfbbbe45d60",
            "hash": "85127a21f0fec496005c88f0bef03ff86ae2b924a3d96bbd02c3f2fcd74c5bbb",
            "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": "2026-11-03T23:34:24Z",
            "content": "{\"cpv\": \"24111500\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/762197-2026\", \"buyer\": \"Krakowski Szpital Specjalistyczny im. św. Jana Pawła II\", \"title\": \"Polska – Gazy medyczne – Dostawa gazów medycznych wraz z dzierżawą zbiorników i butli\", \"region\": \"malopolskie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"PL213, PL213, POL, POL, PL213, PL213, PL213, PL213, POL, POL, POL, POL\", \"buyer_nip\": \"6771694570\", \"source_id\": \"762197-2026\", \"deadline_at\": \"2026-11-10T08:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-11-03T01:00:00Z\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1374623\"}",
            "content_hash": "ad241f955ce2564a40d4c86a336af912f6bff5cd874b8639f255029a13ed13e4",
            "prev_hash": "85127a21f0fec496005c88f0bef03ff86ae2b924a3d96bbd02c3f2fcd74c5bbb",
            "hash": "7e44fec541608a6ebbac365932f0855d77d0f9960b65b68a8e5c0729920ada95",
            "actor": null,
            "seal": null
        }
    ]
}