{
    "tender_id": 4990652,
    "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": "2026-11-03T13:08:23Z",
            "content": "{\"cpv\": \"39296100\", \"url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=128589\", \"buyer\": \"KGHM Polska Miedź S.A. (Mercus Logistyka)\", \"title\": \"ZAPYTANIE OFERTOWE NA ZAKUP PRZEWÓD FTP-C-O\", \"region\": \"dolnoslaskie\", \"source\": \"kghm_erfx\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polkowice\", \"source_id\": \"128589\", \"deadline_at\": \"2026-11-06T11:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-03T11:50:00Z\"}",
            "content_hash": "47f6e2306a405472475d7cef194cb2edda1d38aadb75f12e0273ab2efefc57a7",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "8e6fb3bfae45380600c929feb912a70f7246bdb2e6364e754c121a489cbaacb9",
            "actor": null,
            "seal": null
        },
        {
            "version": 2,
            "recorded_at": "2026-11-03T14:45:47Z",
            "content": "{\"cpv\": \"39296100\", \"url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=128589\", \"buyer\": \"KGHM Polska Miedź S.A. (Mercus Logistyka)\", \"title\": \"ZAPYTANIE OFERTOWE NA ZAKUP PRZEWÓD FTP-C-O\", \"region\": \"dolnoslaskie\", \"source\": \"kghm_erfx\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polkowice\", \"source_id\": \"128589\", \"deadline_at\": \"2026-11-06T11:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-03T11:50:00Z\", \"procedure_url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=128589\"}",
            "content_hash": "cf45913146b941fb394ba135fa85bb0d92df6a7ae0313a2f89dc65c510666bf9",
            "prev_hash": "8e6fb3bfae45380600c929feb912a70f7246bdb2e6364e754c121a489cbaacb9",
            "hash": "ea3ebbc33d9b89ca85062cdb5a0563819a695713445b3986b85050c54b6fa8de",
            "actor": null,
            "seal": null
        }
    ]
}