{
    "tender_id": 6137694,
    "check": {
        "ok": true,
        "versions": 3,
        "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\": \"44163000\", \"url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=129573\", \"buyer\": \"KGHM Polska Miedź S.A. (Mercus Logistyka)\", \"title\": \"DOSTAWA RUR PCV 25X200\", \"region\": \"dolnoslaskie\", \"source\": \"kghm_erfx\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polkowice\", \"source_id\": \"129573\", \"deadline_at\": \"2026-11-10T10:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-09T10:41:00Z\"}",
            "content_hash": "0e907a9929242d21cc6f853497cacb5a9233459575533f66f0020482b9feb937",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "c6d92514c838c33a6c37372445f23ff1d77a6e3a9074715082d0012d30068d2d",
            "actor": null,
            "seal": null
        },
        {
            "version": 2,
            "recorded_at": "2026-11-09T12:46:18Z",
            "content": "{\"cpv\": \"44163000\", \"url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=129573\", \"buyer\": \"KGHM Polska Miedź S.A. (Mercus Logistyka)\", \"title\": \"DOSTAWA RUR PCV 25X200\", \"region\": \"dolnoslaskie\", \"source\": \"kghm_erfx\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polkowice\", \"source_id\": \"129573\", \"deadline_at\": \"2026-11-10T10:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-09T10:41:00Z\", \"procedure_url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=129573\"}",
            "content_hash": "6def02e227f77d877ed640fb774ed8ff02040ad3b2e5c1cbc9906d28afda82b2",
            "prev_hash": "c6d92514c838c33a6c37372445f23ff1d77a6e3a9074715082d0012d30068d2d",
            "hash": "8b27006afd6124a3eed5923c81f0b67c3995c72fa3a54d77f0549a557d81cbe3",
            "actor": null,
            "seal": null
        },
        {
            "version": 3,
            "recorded_at": "2026-11-09T16:45:28Z",
            "content": "{\"cpv\": \"44163000\", \"url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=129573\", \"buyer\": \"KGHM Polska Miedź S.A. (Mercus Logistyka)\", \"title\": \"DOSTAWA RUR PCV 25X200\", \"region\": \"dolnoslaskie\", \"source\": \"kghm_erfx\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polkowice\", \"source_id\": \"129573\", \"deadline_at\": \"2026-11-10T10:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-09T10:41:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3883980/dostawa-rur-pcv-25x200\"}",
            "content_hash": "8a90c7269459e2a07e2b887fec746c4ce7253ace24118de5c1bc191a3b8ce443",
            "prev_hash": "8b27006afd6124a3eed5923c81f0b67c3995c72fa3a54d77f0549a557d81cbe3",
            "hash": "a4182cb9723c757de133e428fc82264b3de8b7a45cf2c719bae0bb9ada64c66f",
            "actor": null,
            "seal": null
        }
    ]
}