{
    "tender_id": 4138947,
    "check": {
        "ok": true,
        "versions": 1,
        "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": "2026-10-30T13:44:04Z",
            "content": "{\"cpv\": \"45000000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3863538/opracowanie-projektu-budowlanego-w-celu-przylaczenia-do-sieci-domu-jednorodzinnego-dz-110-7-w-m-trzebule-s-2026-17522\", \"buyer\": \"Grupa Kapitałowa Enea\", \"title\": \"Opracowanie projektu budowlanego w celu przyłączenia do sieci domu jednorodzinnego dz. 110/7 w m. Trzebule, S-2026-17522\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3863538\", \"deadline_at\": \"2026-11-09T10:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T13:44:05Z\"}",
            "content_hash": "86f13d9192c7be84ceaa33394ecfa18fef0ee5f57f6a9bf0d4f7b982c15efe6a",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "be41cb3e72010eac5ab1d6df9934af4bfdf1bd642e1ff97806226172218c3507",
            "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
            }
        }
    ]
}