{
    "tender_id": 3751713,
    "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": "2026-10-28T10:28:17Z",
            "content": "{\"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3857965/us-ugi-cateringowe-na-lata-2027-2028\", \"buyer\": \"31 Baza Lotnictwa Taktycznego w Poznaniu\", \"title\": \"USŁUGI CATERINGOWE NA LATA 2027-2028\", \"region\": \"wielkopolskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3857965\", \"deadline_at\": \"2026-11-30T08:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-28T10:28:18Z\"}",
            "content_hash": "546e9cd3d22f92625def93602100225dee2247d9cf112349806e651c03c9c738",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "7529a9dbee88eefd3e97bd70929a6c6b67f0aa053ec176c9e350baa6348fa4a8",
            "actor": null,
            "seal": {
                "id": 5,
                "digest": "0659ce1e2aadd7f69ed1ff4603a4290c070eaa14bbeed28a3c9a7cc2127acae9",
                "file": "https://tenderiq.pl/rejestr/pieczec-5.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-5.txt.ots",
                "bitcoin_block": 973609
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-28T11:45:31Z",
            "content": "{\"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3857965/us-ugi-cateringowe-na-lata-2027-2028\", \"buyer\": \"31 Baza Lotnictwa Taktycznego w Poznaniu\", \"title\": \"USŁUGI CATERINGOWE NA LATA 2027-2028\", \"region\": \"wielkopolskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3857965\", \"deadline_at\": \"2026-11-30T08:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-28T10:28:18Z\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1389626\"}",
            "content_hash": "039e33169ffc386bbba6b6853fddacb59b099f8a45420ffd557141c65ba51705",
            "prev_hash": "7529a9dbee88eefd3e97bd70929a6c6b67f0aa053ec176c9e350baa6348fa4a8",
            "hash": "e5b54558b0938a5a2da518b82f7aba75ab9957c3d4a1a4238f5fef5f773a6959",
            "actor": null,
            "seal": {
                "id": 5,
                "digest": "0659ce1e2aadd7f69ed1ff4603a4290c070eaa14bbeed28a3c9a7cc2127acae9",
                "file": "https://tenderiq.pl/rejestr/pieczec-5.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-5.txt.ots",
                "bitcoin_block": 973609
            }
        }
    ]
}