{
    "tender_id": 3012550,
    "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\": \"45000000\", \"url\": \"https://swoz.tauron.pl/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=13127282\", \"buyer\": \"TAURON Polska Energia S.A.\", \"title\": \"Wykonanie robót remontowo-budowlanych obejmujących przebudowę budynku biurowo – socjalnego przy ul. Energetyków 14 w Jaworznie na potrzeby Bioeko Grupa TAURON sp. z o.o.\", \"source\": \"tauron_swoz_erfx\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"13127282\", \"deadline_at\": \"2026-11-26T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-23T09:06:00Z\", \"procedure_url\": \"https://swoz.tauron.pl/platform/demand/notice/public/13070636/details\"}",
            "content_hash": "164acbc4263e20bb8efecb7e0fd286e85fefea21d13e815c541e63bdca1af3d2",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "3ea9a0c81ed0112cb84f7d8819ddb0eae0872b2dd38c3e5862ee5e828fe9972a",
            "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
            }
        }
    ]
}