{
    "tender_id": 4779516,
    "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": "2026-11-02T13:56:36Z",
            "content": "{\"cpv\": \"39296100\", \"url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=128382\", \"buyer\": \"KGHM Polska Miedź S.A. (Mercus Logistyka)\", \"title\": \"Zapytanie ofertowe na złącza Festo\", \"region\": \"dolnoslaskie\", \"source\": \"kghm_erfx\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polkowice\", \"source_id\": \"128382\", \"deadline_at\": \"2026-11-03T08:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-02T13:54:00Z\"}",
            "content_hash": "28503db0c0f9773c4a16f8729cd783375c368f41cf56b81dddf9a2c54c46b809",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "2de53815ab43496ef49d22649b7239487b370ae765eecc48f07c9b7117e84665",
            "actor": null,
            "seal": {
                "id": 10,
                "digest": "297505af1d9d820e84b46bcdd40ae11b1ffc912134eeb69a764090ac7f9838b4",
                "file": "https://tenderiq.pl/rejestr/pieczec-10.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-10.txt.ots",
                "bitcoin_block": 974314
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-02T20:45:35Z",
            "content": "{\"cpv\": \"39296100\", \"url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=128382\", \"buyer\": \"KGHM Polska Miedź S.A. (Mercus Logistyka)\", \"title\": \"Zapytanie ofertowe na złącza Festo\", \"region\": \"dolnoslaskie\", \"source\": \"kghm_erfx\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polkowice\", \"source_id\": \"128382\", \"deadline_at\": \"2026-11-03T08:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-02T13:54:00Z\", \"procedure_url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=128382\"}",
            "content_hash": "3a5431bb4dc6bcb9c3f9b60482e117850003b054110483b2a656fe3b6e5b3d8a",
            "prev_hash": "2de53815ab43496ef49d22649b7239487b370ae765eecc48f07c9b7117e84665",
            "hash": "226281e904b8ad0d9687e22cba778e4043ef61d56e464d10634bde88e4591d7c",
            "actor": null,
            "seal": {
                "id": 10,
                "digest": "297505af1d9d820e84b46bcdd40ae11b1ffc912134eeb69a764090ac7f9838b4",
                "file": "https://tenderiq.pl/rejestr/pieczec-10.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-10.txt.ots",
                "bitcoin_block": 974314
            }
        }
    ]
}