{
    "tender_id": 3797570,
    "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": "2026-10-28T14:01:21Z",
            "content": "{\"url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=127622\", \"buyer\": \"KGHM Polska Miedź S.A. (Mercus Logistyka)\", \"title\": \"DOSTAWA TERMOSTAT TCS2CA 90/160 CELLA/WIKA\", \"region\": \"dolnoslaskie\", \"source\": \"kghm_erfx\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polkowice\", \"source_id\": \"127622\", \"deadline_at\": \"2026-10-30T12:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-28T12:34:00Z\"}",
            "content_hash": "275e353a976e6b819802ef23bb1fe422f8086d7bc3f03a66cbe1cc48d035028b",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "a3511e0be617d639d062bcf2eb95cb4eb3ac77bcffb8d3f814040bce3ad933b2",
            "actor": null,
            "seal": {
                "id": 5,
                "digest": "0659ce1e2aadd7f69ed1ff4603a4290c070eaa14bbeed28a3c9a7cc2127acae9",
                "file": "https://tenderiq.pl/rejestr/pieczec-5.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-5.txt.ots",
                "bitcoin_block": 973609
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-28T19:32:13Z",
            "content": "{\"url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=127622\", \"buyer\": \"KGHM Polska Miedź S.A. (Mercus Logistyka)\", \"title\": \"DOSTAWA TERMOSTAT TCS2CA 90/160 CELLA/WIKA\", \"region\": \"dolnoslaskie\", \"source\": \"kghm_erfx\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polkowice\", \"source_id\": \"127622\", \"deadline_at\": \"2026-10-30T12:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-28T12:34:00Z\", \"procedure_url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=127622\"}",
            "content_hash": "fd48e6ce1a69c2959f81b4cdec428d69d4095621e8aba3eccd79a21b99fd4f13",
            "prev_hash": "a3511e0be617d639d062bcf2eb95cb4eb3ac77bcffb8d3f814040bce3ad933b2",
            "hash": "0bdd33e3b041dece12c9fdf6f32fa0c2d84fa86f263c73bfcec1169e9c7267c0",
            "actor": null,
            "seal": {
                "id": 5,
                "digest": "0659ce1e2aadd7f69ed1ff4603a4290c070eaa14bbeed28a3c9a7cc2127acae9",
                "file": "https://tenderiq.pl/rejestr/pieczec-5.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-5.txt.ots",
                "bitcoin_block": 973609
            }
        }
    ]
}