{
    "tender_id": 3881755,
    "check": {
        "ok": true,
        "versions": 4,
        "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": "2026-10-29T04:27:24Z",
            "content": "{\"cpv\": \"42130000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3859098/194112-a-fe-hydraulika-szybkoz-aczki-rqc-zamienniki-za-zlaczki-walther-mat-st-weglowa-uszcz-nbr-dla-cognor-gliwice\", \"buyer\": \"Cognor SA oddział Ferrostal Łabędy w Gliwicach\", \"title\": \"194112. a / FE / Hydraulika: SZYBKOZŁĄCZKI RQC [zamienniki za złączki Walther, mat.st.węglowa, uszcz.NBR] dla Cognor Gliwice\", \"region\": \"slaskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3859098\", \"deadline_at\": \"2026-11-04T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-29T04:27:25Z\"}",
            "content_hash": "f225cebaede2c7c8140e45ae778ccad7715850197b4f905c84e39ff22c7a1f7f",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "94c0d6f4064385c84119c4cfc8d39949834aee0f8b42432689536878be060f16",
            "actor": null,
            "seal": null
        },
        {
            "version": 2,
            "recorded_at": "2026-10-29T04:45:42Z",
            "content": "{\"cpv\": \"42130000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3859098/194112-a-fe-hydraulika-szybkoz-aczki-rqc-zamienniki-za-zlaczki-walther-mat-st-weglowa-uszcz-nbr-dla-cognor-gliwice\", \"buyer\": \"Cognor SA oddział Ferrostal Łabędy w Gliwicach\", \"title\": \"194112. a / FE / Hydraulika: SZYBKOZŁĄCZKI RQC [zamienniki za złączki Walther, mat.st.węglowa, uszcz.NBR] dla Cognor Gliwice\", \"region\": \"slaskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3859098\", \"deadline_at\": \"2026-11-04T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-29T04:27:25Z\", \"procedure_url\": \"https://cognor.logintrade.net/portal,szczegolyZapytaniaOfertowe,53e0474194c6871b4652aa0a7e05ae29.html\"}",
            "content_hash": "e54b6653ca34d3e877b94662db7b85cf7c9a82c7af65b091eb310aa0147420c8",
            "prev_hash": "94c0d6f4064385c84119c4cfc8d39949834aee0f8b42432689536878be060f16",
            "hash": "ebf5c7273024c65b6fd86d893962e40b35fab27b830852f07d22260b9d1f08c7",
            "actor": null,
            "seal": null
        },
        {
            "version": 3,
            "recorded_at": "2026-10-29T17:45:22Z",
            "content": "{\"cpv\": \"42130000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3859098/194112-a-fe-hydraulika-szybkoz-aczki-rqc-zamienniki-za-zlaczki-walther-mat-st-weglowa-uszcz-nbr-dla-cognor-gliwice\", \"buyer\": \"Cognor SA oddział Ferrostal Łabędy w Gliwicach\", \"title\": \"194112. a / FE / Hydraulika: SZYBKOZŁĄCZKI RQC [zamienniki za złączki Walther, mat.st.węglowa, uszcz.NBR] dla Cognor Gliwice\", \"region\": \"slaskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3859098\", \"deadline_at\": \"2026-11-04T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-29T04:27:25Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3859098/194112-a-fe-hydraulika-szybkoz-aczki-rqc-zamienniki-za-zlaczki-walther-mat-st-weglowa-uszcz-nbr-dla-cognor-gliwice\"}",
            "content_hash": "ed8ebcc119563cbc103f8cc1a1d9fa80a94ee32f73a2745e59a5413dedc4b482",
            "prev_hash": "ebf5c7273024c65b6fd86d893962e40b35fab27b830852f07d22260b9d1f08c7",
            "hash": "abbd23a0b938a9809cc9cf1d15821046eedc2c35c696b61596943560480aad17",
            "actor": null,
            "seal": null
        },
        {
            "version": 4,
            "recorded_at": "2026-10-29T19:45:58Z",
            "content": "{\"cpv\": \"42130000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3859098/194112-a-fe-hydraulika-szybkoz-aczki-rqc-zamienniki-za-zlaczki-walther-mat-st-weglowa-uszcz-nbr-dla-cognor-gliwice\", \"buyer\": \"Cognor SA oddział Ferrostal Łabędy w Gliwicach\", \"title\": \"194112. a / FE / Hydraulika: SZYBKOZŁĄCZKI RQC [zamienniki za złączki Walther, mat.st.węglowa, uszcz.NBR] dla Cognor Gliwice\", \"region\": \"slaskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3859098\", \"deadline_at\": \"2026-11-04T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-29T04:27:25Z\", \"procedure_url\": \"https://cognor.logintrade.net/portal,szczegolyZapytaniaOfertowe,53e0474194c6871b4652aa0a7e05ae29.html\"}",
            "content_hash": "e54b6653ca34d3e877b94662db7b85cf7c9a82c7af65b091eb310aa0147420c8",
            "prev_hash": "abbd23a0b938a9809cc9cf1d15821046eedc2c35c696b61596943560480aad17",
            "hash": "c85a984df5b183105cba67af936defa896f50de1d7abd4984893962b1fb360c3",
            "actor": null,
            "seal": null
        }
    ]
}