{
    "tender_id": 3348361,
    "check": {
        "ok": true,
        "versions": 2,
        "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": "2026-10-26T08:31:32Z",
            "content": "{\"cpv\": \"38430000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/738669-2026\", \"buyer\": \"Uniwersytet Wrocławski\", \"title\": \"Polska – Aparatura do wykrywania i analizy – BZP.2710.64.2026.MP Dostawa i instalacja układu wzbudzenia w zakresie UV, monochromatora próżniowego, układu detekcji luminescencji oraz nanosekundowej lampy impulsowej\", \"region\": \"dolnoslaskie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [\"38433000\"], \"location\": \"PL514, POL, PL514, POL\", \"buyer_nip\": \"8960005408\", \"source_id\": \"738669-2026\", \"deadline_at\": \"2026-11-24T09:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-26T01:00:00Z\"}",
            "content_hash": "61005760ebf31068c3e49dc237af4a943d3472f589631f17f1a42f5e3e1ead2a",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "e8d824c13a26021743353b32adbc978b36cf2b4debac1f9535632e5e1704ee8c",
            "actor": null,
            "seal": {
                "id": 3,
                "digest": "1119fd2ade60dc88ac794742ff488b9486e8a488f9d77cc6d6a9444474dc1c77",
                "file": "https://tenderiq.pl/rejestr/pieczec-3.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-3.txt.ots",
                "bitcoin_block": 973309
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-26T23:35:12Z",
            "content": "{\"cpv\": \"38430000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/738669-2026\", \"buyer\": \"Uniwersytet Wrocławski\", \"title\": \"Polska – Aparatura do wykrywania i analizy – BZP.2710.64.2026.MP Dostawa i instalacja układu wzbudzenia w zakresie UV, monochromatora próżniowego, układu detekcji luminescencji oraz nanosekundowej lampy impulsowej\", \"region\": \"dolnoslaskie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [\"38433000\"], \"location\": \"PL514, POL, PL514, POL\", \"buyer_nip\": \"8960005408\", \"source_id\": \"738669-2026\", \"deadline_at\": \"2026-11-24T09:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-26T01:00:00Z\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1371106\"}",
            "content_hash": "3fd74a33cd8dfd41d6a5c618c2966afc3a68826afbd1532b5175c950e61df454",
            "prev_hash": "e8d824c13a26021743353b32adbc978b36cf2b4debac1f9535632e5e1704ee8c",
            "hash": "607e0a85d588c9d2d144e7b97da7ad3dc64f427e344802944fad4ecc90862dfa",
            "actor": null,
            "seal": {
                "id": 4,
                "digest": "1a6d1144791ca08d9453bd1c8d38a6c251eb74cb6d377626fde25c11a52ccc7a",
                "file": "https://tenderiq.pl/rejestr/pieczec-4.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-4.txt.ots",
                "bitcoin_block": 973472
            }
        }
    ]
}