{
    "tender_id": 5215074,
    "check": {
        "ok": true,
        "versions": 2,
        "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": "2026-11-04T15:21:51Z",
            "content": "{\"url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=128829\", \"buyer\": \"KGHM Polska Miedź S.A. (Mercus Logistyka)\", \"title\": \"Dostawa Przepustnic KEYSTONE\", \"region\": \"dolnoslaskie\", \"source\": \"kghm_erfx\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polkowice\", \"source_id\": \"128829\", \"deadline_at\": \"2026-11-09T10:30:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-04T13:11:00Z\"}",
            "content_hash": "8fbd30a8bcdad4df34518588b48845ff225109ff0ff7763a84f57f2463e4f593",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "4b2b83ca0b68939de702e67b8e69be1e2cd17a82a5bb85b2ca8a951c98ea0868",
            "actor": null,
            "seal": null
        },
        {
            "version": 2,
            "recorded_at": "2026-11-04T16:45:47Z",
            "content": "{\"url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=128829\", \"buyer\": \"KGHM Polska Miedź S.A. (Mercus Logistyka)\", \"title\": \"Dostawa Przepustnic KEYSTONE\", \"region\": \"dolnoslaskie\", \"source\": \"kghm_erfx\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polkowice\", \"source_id\": \"128829\", \"deadline_at\": \"2026-11-09T10:30:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-04T13:11:00Z\", \"procedure_url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=128829\"}",
            "content_hash": "6c3f45118fe813cd7e90b58891d2df5116b2319204ea002ad37af36abb74b788",
            "prev_hash": "4b2b83ca0b68939de702e67b8e69be1e2cd17a82a5bb85b2ca8a951c98ea0868",
            "hash": "89987fdeb8aa45c2511a776164cf3c0ce699c187ab914fbe50387eaac646c358",
            "actor": null,
            "seal": null
        }
    ]
}