{
    "tender_id": 3921649,
    "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": "2026-10-29T08:55:54Z",
            "content": "{\"url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=127759\", \"buyer\": \"KGHM Polska Miedź S.A. (Mercus Logistyka)\", \"title\": \"Dostawa: WAŁ NAPĘDU B680W2, WAŁ NAPĘDU B880W2\", \"region\": \"dolnoslaskie\", \"source\": \"kghm_erfx\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polkowice\", \"source_id\": \"127759\", \"deadline_at\": \"2026-10-30T11:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-29T08:37:00Z\"}",
            "content_hash": "ebacb8ca89e669bf32173e51974a44fff3f51dc88174102de818612c45ad1b4b",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "27c74d36478948035cc35015fa40a71c3b79fe87b69bd51e0f0a89dccc3c34f6",
            "actor": null,
            "seal": null
        },
        {
            "version": 2,
            "recorded_at": "2026-10-29T11:45:36Z",
            "content": "{\"url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=127759\", \"buyer\": \"KGHM Polska Miedź S.A. (Mercus Logistyka)\", \"title\": \"Dostawa: WAŁ NAPĘDU B680W2, WAŁ NAPĘDU B880W2\", \"region\": \"dolnoslaskie\", \"source\": \"kghm_erfx\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polkowice\", \"source_id\": \"127759\", \"deadline_at\": \"2026-10-30T11:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-29T08:37:00Z\", \"procedure_url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=127759\"}",
            "content_hash": "412498ccc603d93088f5ca37b2b692d9aea17e5746d3fcf2f99cbcdc0ea4d8d5",
            "prev_hash": "27c74d36478948035cc35015fa40a71c3b79fe87b69bd51e0f0a89dccc3c34f6",
            "hash": "c00d670d4c1423657c58f19553821ab4e9c250b299c87fc54e0d68c5b1f0701a",
            "actor": null,
            "seal": null
        }
    ]
}