{
    "tender_id": 6137755,
    "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\": \"43600000\", \"url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=129504\", \"buyer\": \"KGHM Polska Miedź S.A. (Mercus Logistyka)\", \"title\": \"Dostawa: KÓŁ WB ŁAŃCUCHOWYCH\", \"region\": \"dolnoslaskie\", \"source\": \"kghm_erfx\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polkowice\", \"source_id\": \"129504\", \"deadline_at\": \"2026-11-10T11:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-09T08:40:00Z\"}",
            "content_hash": "23008734af90a43a7314c42abd604dcf5940f08ee3e529883d4057f2f4c6da1c",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "9862ab8b734d5ccdcd7e2a6786ae8d4af06f1fe38bd8a148bb002cf3f79dad6c",
            "actor": null,
            "seal": {
                "id": 17,
                "digest": "ff8cb03aa08e7c772155df1b20fd8d51c1cab7cd026d5e31aa3d74d6ab70c7b2",
                "file": "https://tenderiq.pl/rejestr/pieczec-17.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-17.txt.ots",
                "bitcoin_block": 975226
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-09T12:45:59Z",
            "content": "{\"cpv\": \"43600000\", \"url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=129504\", \"buyer\": \"KGHM Polska Miedź S.A. (Mercus Logistyka)\", \"title\": \"Dostawa: KÓŁ WB ŁAŃCUCHOWYCH\", \"region\": \"dolnoslaskie\", \"source\": \"kghm_erfx\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polkowice\", \"source_id\": \"129504\", \"deadline_at\": \"2026-11-10T11:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-09T08:40:00Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3883635/dostawa-ko-wb-ancuchowych\"}",
            "content_hash": "93389dcaceed3e6ccfee93788f4c4a8a8189bc1334719293100b8b6f80c252d5",
            "prev_hash": "9862ab8b734d5ccdcd7e2a6786ae8d4af06f1fe38bd8a148bb002cf3f79dad6c",
            "hash": "3010751bc4ec6da23bbe0e5dad5eb505a04fb710bfda71379e99f3000a3a438f",
            "actor": null,
            "seal": {
                "id": 17,
                "digest": "ff8cb03aa08e7c772155df1b20fd8d51c1cab7cd026d5e31aa3d74d6ab70c7b2",
                "file": "https://tenderiq.pl/rejestr/pieczec-17.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-17.txt.ots",
                "bitcoin_block": 975226
            }
        }
    ]
}