{
    "tender_id": 3694053,
    "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": "2026-10-28T00:55:56Z",
            "content": "{\"cpv\": \"09310000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/746639-2026\", \"buyer\": \"Muzeum Narodowe w Krakowie\", \"title\": \"Polska – Elektryczność – Dostawa energii elektrycznej do obiektów Muzeum Narodowego w Krakowie\", \"region\": \"malopolskie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [\"09300000\"], \"location\": \"PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL219, PL213, PL21A, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, PL213, PL213, PL213, PL213,\", \"buyer_nip\": \"6750004442\", \"source_id\": \"746639-2026\", \"deadline_at\": \"2026-11-27T11:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-28T01:00:00Z\"}",
            "content_hash": "4b6a8f5b135e69e42546784824b0e6539c041b9905bf48927976e7e80389c1d3",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "dfc6215c59933df71078226c4c9d64a773144cba1e9205ac417319536a03ba10",
            "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": "2026-10-28T11:45:29Z",
            "content": "{\"cpv\": \"09310000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/746639-2026\", \"buyer\": \"Muzeum Narodowe w Krakowie\", \"title\": \"Polska – Elektryczność – Dostawa energii elektrycznej do obiektów Muzeum Narodowego w Krakowie\", \"region\": \"malopolskie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [\"09300000\"], \"location\": \"PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL219, PL213, PL21A, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, PL213, PL213, PL213, PL213,\", \"buyer_nip\": \"6750004442\", \"source_id\": \"746639-2026\", \"deadline_at\": \"2026-11-27T11:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-28T01:00:00Z\", \"procedure_url\": \"https://mnk.ezamawiajacy.pl/pn/mnk/demand/notice/public/240643/details\"}",
            "content_hash": "eb4b1a0dce5da87120bb355f72f36c3bd0ffb2796306cee080607452654b55f4",
            "prev_hash": "dfc6215c59933df71078226c4c9d64a773144cba1e9205ac417319536a03ba10",
            "hash": "607853841d894d4f33ee156be67e06e47827dfc8bf079291787fa7a2774da8f1",
            "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
            }
        }
    ]
}