{
    "tender_id": 6137696,
    "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": "2026-11-09T12:13:34Z",
            "content": "{\"cpv\": \"45421000\", \"url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=129569\", \"buyer\": \"KGHM Polska Miedź S.A. (Mercus Logistyka)\", \"title\": \"Dostawa kurtyn PCV\", \"region\": \"dolnoslaskie\", \"source\": \"kghm_erfx\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polkowice\", \"source_id\": \"129569\", \"deadline_at\": \"2026-11-13T10:35:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-09T11:49:00Z\"}",
            "content_hash": "f91c27effb50cb11b8939c416ace332030163e083022de6eb8c5dac65b4416da",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "2eab956e33ea1eaa69c020a3963b0bf2d9d7c700d80a91e423bc06980e0606c8",
            "actor": null,
            "seal": null
        }
    ]
}