{
    "tender_id": 4194835,
    "check": {
        "ok": true,
        "versions": 3,
        "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": "2026-10-30T18:13:29Z",
            "content": "{\"cpv\": \"09211000\", \"url\": \"https://grangeskonin.logintrade.net/portal,szczegolyZapytaniaOfertowe,16e704579d089224b2451c8187dc5cea.html\", \"buyer\": \"GRÄNGES KONIN S.A.\", \"title\": \"44214 - oleje przekładniowe\", \"region\": \"mazowieckie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"mazowieckie\", \"source_id\": \"grangeskonin-16e704579d089224b2451c8187dc5cea\", \"deadline_at\": \"2026-11-04T10:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T14:30:00Z\"}",
            "content_hash": "db4f5b4eb983f099d3ffa6ba85a50ac813c53a68991903e0e691b904b0abc7ef",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "afde6a3001130cf6dd15b4f74a200d5b313246bbb8dcb3957d46f48991a5bc7a",
            "actor": null,
            "seal": {
                "id": 7,
                "digest": "a9f75e7ec6726860fada5c5807cac164b76cf44582f14a01cd7b4a36f579f813",
                "file": "https://tenderiq.pl/rejestr/pieczec-7.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-7.txt.ots",
                "bitcoin_block": 973897
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-31T01:48:08Z",
            "content": "{\"cpv\": \"09211000\", \"url\": \"https://grangeskonin.logintrade.net/portal,szczegolyZapytaniaOfertowe,16e704579d089224b2451c8187dc5cea.html\", \"buyer\": \"GRÄNGES KONIN S.A\", \"title\": \"44214 - oleje przekładniowe\", \"region\": \"wielkopolskie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"grangeskonin-16e704579d089224b2451c8187dc5cea\", \"deadline_at\": \"2026-11-04T10:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T16:53:00Z\"}",
            "content_hash": "37ad1718ff46ab0101300adae737b7ffabfb166628ca467176a72057c6171dc9",
            "prev_hash": "afde6a3001130cf6dd15b4f74a200d5b313246bbb8dcb3957d46f48991a5bc7a",
            "hash": "80a11e7ff331ebdaa47ecd9c0dcd0dfc9d3b1ff90ca4996697828c1720ca7edd",
            "actor": null,
            "seal": {
                "id": 8,
                "digest": "b9dfb65eef062a8f7633cee107df2b59fcca72ec5f093c9ceec0396cf65cd90d",
                "file": "https://tenderiq.pl/rejestr/pieczec-8.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-8.txt.ots",
                "bitcoin_block": 974039
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-10-31T10:45:50Z",
            "content": "{\"cpv\": \"09211000\", \"url\": \"https://grangeskonin.logintrade.net/portal,szczegolyZapytaniaOfertowe,16e704579d089224b2451c8187dc5cea.html\", \"buyer\": \"GRÄNGES KONIN S.A\", \"title\": \"44214 - oleje przekładniowe\", \"region\": \"wielkopolskie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"grangeskonin-16e704579d089224b2451c8187dc5cea\", \"deadline_at\": \"2026-11-04T10:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-30T16:53:00Z\", \"procedure_url\": \"https://grangeskonin.logintrade.net/portal,szczegolyZapytaniaOfertowe,16e704579d089224b2451c8187dc5cea.html\"}",
            "content_hash": "99c8e47d1a3b0ee219ee58cc93e3db2a51379ccbdd0d33b7139e6dbf0a6e0fa0",
            "prev_hash": "80a11e7ff331ebdaa47ecd9c0dcd0dfc9d3b1ff90ca4996697828c1720ca7edd",
            "hash": "a68ed1490765e5bd4dda55edf83e15f0786f2819bb7b2206b9683c72e0931886",
            "actor": null,
            "seal": {
                "id": 8,
                "digest": "b9dfb65eef062a8f7633cee107df2b59fcca72ec5f093c9ceec0396cf65cd90d",
                "file": "https://tenderiq.pl/rejestr/pieczec-8.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-8.txt.ots",
                "bitcoin_block": 974039
            }
        }
    ]
}