{
    "tender_id": 3693903,
    "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": "2026-10-28T00:55:44Z",
            "content": "{\"cpv\": \"38000000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/745880-2026\", \"buyer\": \"Uniwersytet Rzeszowski\", \"title\": \"Polska – Sprzęt laboratoryjny, optyczny i precyzyjny (z wyjątkiem szklanego) – Sprzedaż wraz z dostarczeniem systemu do nieinwazyjnego obrazowania skóry\", \"region\": \"podkarpackie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"PL823, POL, PL823, POL\", \"buyer_nip\": \"8133238822\", \"source_id\": \"745880-2026\", \"deadline_at\": \"2026-11-30T09:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-28T01:00:00Z\"}",
            "content_hash": "f44113e03f76cec249c0e095e99d1fffdca846dd8231936987c7c885235805c2",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "9ab937fb085ebf830b5ddc13ddd9cdd1815d59613fe532e99f8b93f0f71e7e2e",
            "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": "2026-10-28T18:45:18Z",
            "content": "{\"cpv\": \"38000000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/745880-2026\", \"buyer\": \"Uniwersytet Rzeszowski\", \"title\": \"Polska – Sprzęt laboratoryjny, optyczny i precyzyjny (z wyjątkiem szklanego) – Sprzedaż wraz z dostarczeniem systemu do nieinwazyjnego obrazowania skóry\", \"region\": \"podkarpackie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"PL823, POL, PL823, POL\", \"buyer_nip\": \"8133238822\", \"source_id\": \"745880-2026\", \"deadline_at\": \"2026-11-30T09:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-28T01:00:00Z\", \"procedure_url\": \"https://ur-edu.logintrade.net/zapytania_email,243943,d6d055df04e2436d17f733dead0600ee.html\"}",
            "content_hash": "05607ff805e741bc7459854607deac917d2fad85091d5dcc56f30b3b6db766f7",
            "prev_hash": "9ab937fb085ebf830b5ddc13ddd9cdd1815d59613fe532e99f8b93f0f71e7e2e",
            "hash": "1b2359a464eb6eb70f15875c800e0810454e513d90a4ac9b8c5b13112a3b6f26",
            "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
            }
        }
    ]
}