{
    "tender_id": 4009979,
    "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": "2026-10-29T17:31:20Z",
            "content": "{\"cpv\": \"39717200\", \"url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=127831\", \"buyer\": \"KGHM Polska Miedź S.A. (Mercus Logistyka)\", \"title\": \"DOSTAWA KLIMATYZATORA PRZENOŚNEGO AM12AA1GAA HAIER\", \"region\": \"dolnoslaskie\", \"source\": \"kghm_erfx\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polkowice\", \"source_id\": \"127831\", \"deadline_at\": \"2026-11-02T07:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-29T13:22:00Z\"}",
            "content_hash": "14718d76ffb5af009d4e5f51faf79cc45fa1961f7af160f29e51d3b0f84167b9",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "b93a6ac55f212348d3200567c3d0c5e79fd33d6a80a09cc053995016e2dc37a6",
            "actor": null,
            "seal": {
                "id": 6,
                "digest": "e733200881d78faed3c108fa90cea332062fa40f3af23fcfd3f901e311d96e33",
                "file": "https://tenderiq.pl/rejestr/pieczec-6.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-6.txt.ots",
                "bitcoin_block": 973754
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-29T19:45:58Z",
            "content": "{\"cpv\": \"39717200\", \"url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=127831\", \"buyer\": \"KGHM Polska Miedź S.A. (Mercus Logistyka)\", \"title\": \"DOSTAWA KLIMATYZATORA PRZENOŚNEGO AM12AA1GAA HAIER\", \"region\": \"dolnoslaskie\", \"source\": \"kghm_erfx\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polkowice\", \"source_id\": \"127831\", \"deadline_at\": \"2026-11-02T07:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-29T13:22:00Z\", \"procedure_url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=127831\"}",
            "content_hash": "ebb011cfda66e5306eba0d78d94e06f3bbb98ee1ee8bb064c0175208f4f68354",
            "prev_hash": "b93a6ac55f212348d3200567c3d0c5e79fd33d6a80a09cc053995016e2dc37a6",
            "hash": "de6785f14965573185880d83cf3f7eaab7353335653cc89a72d7b0c5787807cb",
            "actor": null,
            "seal": {
                "id": 6,
                "digest": "e733200881d78faed3c108fa90cea332062fa40f3af23fcfd3f901e311d96e33",
                "file": "https://tenderiq.pl/rejestr/pieczec-6.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-6.txt.ots",
                "bitcoin_block": 973754
            }
        }
    ]
}