{
    "tender_id": 3937479,
    "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": "2026-10-29T12:55:08Z",
            "content": "{\"cpv\": \"44163000\", \"url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=127841\", \"buyer\": \"KGHM Polska Miedź S.A. (Mercus Logistyka)\", \"title\": \"DOSTAWA KOLAN WTRYSKOWYCH PE100 200 90ST PN16, TULEI PE100 DN20, DN25 PN16\", \"region\": \"dolnoslaskie\", \"source\": \"kghm_erfx\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polkowice\", \"source_id\": \"127841\", \"deadline_at\": \"2026-10-30T07:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-29T11:28:00Z\"}",
            "content_hash": "4f78148b67b0f12c6902dd7ac90f8511fb45363b0a832bf3814c5afa29b12d74",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "3d476f6576976260b3bd446d96a6da99706371086c75e581f798297a45e3e7cd",
            "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": "2026-10-29T19:46:03Z",
            "content": "{\"cpv\": \"44163000\", \"url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=127841\", \"buyer\": \"KGHM Polska Miedź S.A. (Mercus Logistyka)\", \"title\": \"DOSTAWA KOLAN WTRYSKOWYCH PE100 200 90ST PN16, TULEI PE100 DN20, DN25 PN16\", \"region\": \"dolnoslaskie\", \"source\": \"kghm_erfx\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polkowice\", \"source_id\": \"127841\", \"deadline_at\": \"2026-10-30T07:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-29T11:28:00Z\", \"procedure_url\": \"https://oferty.kghm.com/platform/application?MP_module=outErfx&MP_action=supplierStatus&iRfxRound=127841\"}",
            "content_hash": "8982789f11640ff691e59f449d89be0f40343cbae5c20210d53e7b4459cdab44",
            "prev_hash": "3d476f6576976260b3bd446d96a6da99706371086c75e581f798297a45e3e7cd",
            "hash": "44e952739a8b869ac69c4178e238465febb443b6e039cf850d5f95fb422e2712",
            "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
            }
        }
    ]
}