{
    "tender_id": 5002636,
    "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": "2026-11-03T14:36:58Z",
            "content": "{\"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3869588/uslugi-szkolenia-bhp\", \"buyer\": \"31 Baza Lotnictwa Taktycznego w Poznaniu\", \"title\": \"Usługi szkolenia BHP\", \"region\": \"wielkopolskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3869588\", \"deadline_at\": \"2026-11-13T07:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-03T14:36:58Z\"}",
            "content_hash": "edc9ab4946b02a53e21b9bc7934d0233decabaca9eb0fc21418726666a9543b2",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "659a728dda4c9367eaf37abcf78142ddf360fc03643195aa0a20b355c5442d96",
            "actor": null,
            "seal": {
                "id": 11,
                "digest": "e9a17a70070a65f95be452321715a138cbb650567f41e2bae0faa2ffd562bbbd",
                "file": "https://tenderiq.pl/rejestr/pieczec-11.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-11.txt.ots",
                "bitcoin_block": 974456
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-03T14:45:45Z",
            "content": "{\"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3869588/uslugi-szkolenia-bhp\", \"buyer\": \"31 Baza Lotnictwa Taktycznego w Poznaniu\", \"title\": \"Usługi szkolenia BHP\", \"region\": \"wielkopolskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3869588\", \"deadline_at\": \"2026-11-13T07:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-03T14:36:58Z\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1402922\"}",
            "content_hash": "46523e9823e880e909b541edfbfd8605b1d84a612cf869f3413bebc256ccffc5",
            "prev_hash": "659a728dda4c9367eaf37abcf78142ddf360fc03643195aa0a20b355c5442d96",
            "hash": "678a06224041e9c57eca8952460d7350dc5b929898d626e22b7b7e015f49a176",
            "actor": null,
            "seal": {
                "id": 11,
                "digest": "e9a17a70070a65f95be452321715a138cbb650567f41e2bae0faa2ffd562bbbd",
                "file": "https://tenderiq.pl/rejestr/pieczec-11.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-11.txt.ots",
                "bitcoin_block": 974456
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-11-04T23:37:20Z",
            "content": "{\"cpv\": \"71317200\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3869588/obsluga-zadan-z-zakresu-bezpieczenstwa-i-higieny\", \"buyer\": \"31 Baza Lotnictwa Taktycznego w Poznaniu\", \"title\": \"Obsługa zadań z zakresu bezpieczeństwa i higieny\", \"region\": \"wielkopolskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3869588\", \"deadline_at\": \"2026-11-13T07:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-03T14:36:58Z\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1402922\"}",
            "content_hash": "421013f1233bc9b95694c0115bd3ea2ee388f28ae55552b327c79d49a429aa0d",
            "prev_hash": "678a06224041e9c57eca8952460d7350dc5b929898d626e22b7b7e015f49a176",
            "hash": "5daeeb9ddc2b04ffee5068e9cf854c4f679a79dc4e5518a8837b4587e5f4818e",
            "actor": null,
            "seal": null
        },
        {
            "version": 4,
            "recorded_at": "2026-11-05T03:37:07Z",
            "content": "{\"cpv\": \"71317200\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3869588/obsluga-zadan-z-zakresu-bezpieczenstwa-i-higieny\", \"buyer\": \"31 Baza Lotnictwa Taktycznego w Poznaniu\", \"title\": \"Obsługa zadań z zakresu bezpieczeństwa i higieny\", \"region\": \"wielkopolskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3869588\", \"deadline_at\": \"2026-11-13T07:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-03T14:36:58Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3869604/obsluga-zadan-z-zakresu-bezpieczenstwa-i-higieny\"}",
            "content_hash": "c31e4c88360575c5753fe94e79decd31eb8179fd57cb5c65e2e671606ddefec3",
            "prev_hash": "5daeeb9ddc2b04ffee5068e9cf854c4f679a79dc4e5518a8837b4587e5f4818e",
            "hash": "793648d0d0db385c80b1c346af6b962b4d35a1f5b981a961a2fed52802a544ae",
            "actor": null,
            "seal": null
        }
    ]
}