{
    "tender_id": 3937473,
    "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": "2026-10-29T12:55:08Z",
            "content": "{\"cpv\": \"31321220\", \"url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=127849\", \"buyer\": \"KGHM Polska Miedź S.A. (Mercus Logistyka)\", \"title\": \"DOSTAWA: ELKO PRZEKAŹNIK KONTROLI NAPIĘCIA HRN\", \"region\": \"dolnoslaskie\", \"source\": \"kghm_erfx\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polkowice\", \"source_id\": \"127849\", \"deadline_at\": \"2026-10-30T12:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-29T11:44:00Z\"}",
            "content_hash": "8c99d6849d0353f96e824b5fbd46fcf5b09bed775694a754ae9d8c612fff23d8",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "d6c8c9d6de364d2238326c2c0cb422abd984d47632f69fc1c28350bd98c93e0a",
            "actor": null,
            "seal": null
        }
    ]
}