{
    "tender_id": 3404042,
    "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": "2026-10-26T14:39:19Z",
            "content": "{\"cpv\": \"31711110\", \"url\": \"https://bogdanka.eb2b.com.pl/open-preview-auction.html/153908/przekaznik-rex-sl-2-24v-50hz-1\", \"buyer\": \"LUBELSKI WĘGIEL BOGDANKA S.A.\", \"title\": \"PRZEKAŹNIK REX-SL-2 24V 50HZ\", \"source\": \"bogdanka_eb2b\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"153908\", \"deadline_at\": \"2026-10-28T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-26T12:00:00Z\"}",
            "content_hash": "b4f73e9d787ab6797966ac04e238724e52c841c611603d7589dd187743de90f3",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "b0c868177118c5d57ba134a0b6f3695520cccb81ab1e24ed4ec06cac329b743f",
            "actor": null,
            "seal": {
                "id": 3,
                "digest": "1119fd2ade60dc88ac794742ff488b9486e8a488f9d77cc6d6a9444474dc1c77",
                "file": "https://tenderiq.pl/rejestr/pieczec-3.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-3.txt.ots",
                "bitcoin_block": 973309
            }
        }
    ]
}