{
    "tender_id": 4100358,
    "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": "2026-10-30T06:32:27Z",
            "content": "{\"cpv\": \"38344000\", \"url\": \"https://bogdanka.eb2b.com.pl/open-preview-auction.html/154074/tasma-srebrna-pp-50x50m-10\", \"buyer\": \"LUBELSKI WĘGIEL BOGDANKA S.A.\", \"title\": \"TAŚMA SREBRNA PP 50X50M\", \"source\": \"bogdanka_eb2b\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"154074\", \"deadline_at\": \"2026-11-03T21:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-30T05:00:00Z\"}",
            "content_hash": "f917320dcf116d82cd62b9f5a5590ba5e499818990b37e82b456d60dd5a8e6fb",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "8b5c2fbc58049518b239ebf1ed1f9a4905bd44e03720317e0d3056609d42a6c9",
            "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
            }
        }
    ]
}