{
    "tender_id": 1566576,
    "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": "2026-10-24T13:58:39Z",
            "content": "{\"cpv\": \"45262700\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3836225/czyszczenie-rynien-i-spustow-na-budynkach-elektrowni-wodnych\", \"buyer\": \"TAURON Ekoenergia sp. z o.o.\", \"title\": \"Czyszczenie rynien i spustów na budynkach elektrowni wodnych\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3836225\", \"deadline_at\": \"2026-10-29T11:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-16T03:29:25Z\", \"procedure_url\": \"https://swoz.tauron.pl/platform/demand/notice/public/13070322/details\"}",
            "content_hash": "1ad3e7ecf8f4ee56908f88415cd16ae6eed68ff2d9498db92bd4ea95dcf9d51a",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "92aec12d2747ca382d4ca9173ca469515dc8d81c826bb7aa1db7f8f4a79d07e9",
            "actor": null,
            "seal": {
                "id": 1,
                "digest": "25686b149cfd327de10f8db2827c82e22b0d6a884d716cd11b36328364d6937d",
                "file": "https://tenderiq.pl/rejestr/pieczec-1.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-1.txt.ots",
                "bitcoin_block": 972985
            }
        }
    ]
}