{
    "tender_id": 5356818,
    "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": "2026-11-05T05:49:22Z",
            "content": "{\"cpv\": \"09134100\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3874467/olej-hydrauliczny-texaco-rando-hdz-15-opak-20-l-do-poj-en76\", \"buyer\": \"KOLEJE WIELKOPOLSKIE SP. Z O.O.\", \"title\": \"Olej hydrauliczny Texaco Rando HDZ 15 opak. 20 l do poj. EN76\", \"region\": \"wielkopolskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3874467\", \"deadline_at\": \"2026-11-12T11:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-05T05:49:23Z\"}",
            "content_hash": "544225b34501acd0c4b321ffb171e63b5e9b6b087a806b7ca050bf31c157d987",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "95cb0d3e030c7da98d52b55c70d0460c18bce7dfc0aefe48eee8833f268785be",
            "actor": null,
            "seal": null
        },
        {
            "version": 2,
            "recorded_at": "2026-11-05T06:45:53Z",
            "content": "{\"cpv\": \"09134100\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3874467/olej-hydrauliczny-texaco-rando-hdz-15-opak-20-l-do-poj-en76\", \"buyer\": \"KOLEJE WIELKOPOLSKIE SP. Z O.O.\", \"title\": \"Olej hydrauliczny Texaco Rando HDZ 15 opak. 20 l do poj. EN76\", \"region\": \"wielkopolskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3874467\", \"deadline_at\": \"2026-11-12T11:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-05T05:49:23Z\", \"procedure_url\": \"https://platforma.eb2b.com.pl/open-preview-auction.html/536990/olej-hydrauliczny-texaco-rando-hdz-15-opak-20-l-do-poj-en76\"}",
            "content_hash": "d1bafc1c4f4ab1a4267efe796055dcdeb68367b0e6326bf5288943e815c8fe32",
            "prev_hash": "95cb0d3e030c7da98d52b55c70d0460c18bce7dfc0aefe48eee8833f268785be",
            "hash": "f7de356959393a4f019361f1c1a61397d8507a7a7f9b630c74364bff9e9c28c0",
            "actor": null,
            "seal": null
        }
    ]
}