{
    "tender_id": 4210121,
    "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": "2026-10-30T19:15:58Z",
            "content": "{\"cpv\": \"34110000\", \"url\": \"https://duw.ezamawiajacy.pl/pn/duw/demand/notice/public/241375/details\", \"buyer\": \"Dolnośląski Urząd Wojewódzki we Wrocławiu\", \"title\": \"Dostawa trzech odkurzaczy na potrzeby Dolnośląskiego Urzędu Wojewódzkiego we Wrocławiu.\", \"region\": \"dolnoslaskie\", \"source\": \"duw_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"241375\", \"deadline_at\": \"2026-11-05T09:00:00Z\", \"notice_type\": \"Postępowanie wyłączone z PZP\", \"published_at\": \"2026-10-30T14:54:00Z\"}",
            "content_hash": "05163a10399ca84f3d4d0373c0278ea78d7ff01c189cd735b5031320dceda862",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "8db6c56d82dfc9b3b54001fe9a8a6a0ab5450d0ad8271e9b868bd90282fc28b8",
            "actor": null,
            "seal": {
                "id": 7,
                "digest": "a9f75e7ec6726860fada5c5807cac164b76cf44582f14a01cd7b4a36f579f813",
                "file": "https://tenderiq.pl/rejestr/pieczec-7.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-7.txt.ots",
                "bitcoin_block": 973897
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-30T21:45:33Z",
            "content": "{\"cpv\": \"34110000\", \"url\": \"https://duw.ezamawiajacy.pl/pn/duw/demand/notice/public/241375/details\", \"buyer\": \"Dolnośląski Urząd Wojewódzki we Wrocławiu\", \"title\": \"Dostawa trzech odkurzaczy na potrzeby Dolnośląskiego Urzędu Wojewódzkiego we Wrocławiu.\", \"region\": \"dolnoslaskie\", \"source\": \"duw_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"241375\", \"deadline_at\": \"2026-11-05T09:00:00Z\", \"notice_type\": \"Postępowanie wyłączone z PZP\", \"published_at\": \"2026-10-30T14:54:00Z\", \"procedure_url\": \"https://duw.ezamawiajacy.pl/pn/duw/demand/notice/public/241375/details\"}",
            "content_hash": "bba7919478391467ef6ce7ed4002fca0b46cda970348c10d82d2d20f0d02d09c",
            "prev_hash": "8db6c56d82dfc9b3b54001fe9a8a6a0ab5450d0ad8271e9b868bd90282fc28b8",
            "hash": "09f9cb6cfe5ef68cfeaafdd1843bad97ed35f5d3285d10424f3066a9c93854c8",
            "actor": null,
            "seal": {
                "id": 7,
                "digest": "a9f75e7ec6726860fada5c5807cac164b76cf44582f14a01cd7b4a36f579f813",
                "file": "https://tenderiq.pl/rejestr/pieczec-7.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-7.txt.ots",
                "bitcoin_block": 973897
            }
        }
    ]
}