{
    "tender_id": 6137747,
    "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": "2026-11-09T12:13:34Z",
            "content": "{\"cpv\": \"45000000\", \"url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=129514\", \"buyer\": \"KGHM Polska Miedź S.A. (Mercus Logistyka)\", \"title\": \"Zapytanie na płyty PE\", \"region\": \"dolnoslaskie\", \"source\": \"kghm_erfx\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polkowice\", \"source_id\": \"129514\", \"deadline_at\": \"2026-11-12T08:48:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-09T11:01:00Z\"}",
            "content_hash": "229cffa9f15ae22c3358a9ac4e58bf6b83e8df755b15e5d3d1d0f12fc2263986",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "2be4e0ca4719951b5e21f45b573bcfe878abf8a528fe6bbf67f0bcadf457558a",
            "actor": null,
            "seal": null
        },
        {
            "version": 2,
            "recorded_at": "2026-11-09T17:45:44Z",
            "content": "{\"cpv\": \"45000000\", \"url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=129514\", \"buyer\": \"KGHM Polska Miedź S.A. (Mercus Logistyka)\", \"title\": \"Zapytanie na płyty PE\", \"region\": \"dolnoslaskie\", \"source\": \"kghm_erfx\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polkowice\", \"source_id\": \"129514\", \"deadline_at\": \"2026-11-12T08:48:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-09T11:01:00Z\", \"procedure_url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=129514\"}",
            "content_hash": "2f5b385844f6232dd7a18d0dc7c66007bb3097124ff7636f5c40af1e61f18662",
            "prev_hash": "2be4e0ca4719951b5e21f45b573bcfe878abf8a528fe6bbf67f0bcadf457558a",
            "hash": "5ac81132ee0e8393cc04d4d32557bf183a5f53d5d70ed92a086b4d28a4c07fe4",
            "actor": null,
            "seal": null
        }
    ]
}