{
    "tender_id": 3724655,
    "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": "2026-10-28T04:54:26Z",
            "content": "{\"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3856604/waz-do-powietrza-1-0-mpa-fi-31-5-mm\", \"buyer\": \"Cognor SA oddział Ferrostal Łabędy w Krakowie\", \"title\": \"WĄŻ DO POWIETRZA (1.0 MPa) FI 31,5 mm\", \"region\": \"malopolskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3856604\", \"deadline_at\": \"2026-11-06T06:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-28T04:54:27Z\"}",
            "content_hash": "3b64854432ec461265ebfcd755af5d47a8c059f77e6e8fbd93fac4c4b1c83b47",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "57727fd449c1d020c66bacd3d015531f176491ab483cb4ec20cd58803b2c98b6",
            "actor": null,
            "seal": {
                "id": 5,
                "digest": "0659ce1e2aadd7f69ed1ff4603a4290c070eaa14bbeed28a3c9a7cc2127acae9",
                "file": "https://tenderiq.pl/rejestr/pieczec-5.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-5.txt.ots",
                "bitcoin_block": 973609
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-28T05:45:46Z",
            "content": "{\"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3856604/waz-do-powietrza-1-0-mpa-fi-31-5-mm\", \"buyer\": \"Cognor SA oddział Ferrostal Łabędy w Krakowie\", \"title\": \"WĄŻ DO POWIETRZA (1.0 MPa) FI 31,5 mm\", \"region\": \"malopolskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3856604\", \"deadline_at\": \"2026-11-06T06:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-28T04:54:27Z\", \"procedure_url\": \"https://cognor.logintrade.net/portal,szczegolyZapytaniaOfertowe,3059a08c52a9ed4d3a2dd864abcc6cc1.html\"}",
            "content_hash": "d3fe0a705e7cdd04474b3811bcb691665956cf1927f2f1c7ebaba738be673055",
            "prev_hash": "57727fd449c1d020c66bacd3d015531f176491ab483cb4ec20cd58803b2c98b6",
            "hash": "e76d37355034406883c3ed3d5a1b2a01cb5ae8c9da1b7d4dc8a36eab54073579",
            "actor": null,
            "seal": {
                "id": 5,
                "digest": "0659ce1e2aadd7f69ed1ff4603a4290c070eaa14bbeed28a3c9a7cc2127acae9",
                "file": "https://tenderiq.pl/rejestr/pieczec-5.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-5.txt.ots",
                "bitcoin_block": 973609
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-10-29T17:45:23Z",
            "content": "{\"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3856604/waz-do-powietrza-1-0-mpa-fi-31-5-mm\", \"buyer\": \"Cognor SA oddział Ferrostal Łabędy w Krakowie\", \"title\": \"WĄŻ DO POWIETRZA (1.0 MPa) FI 31,5 mm\", \"region\": \"malopolskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3856604\", \"deadline_at\": \"2026-11-06T06:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-28T04:54:27Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3856604/waz-do-powietrza-1-0-mpa-fi-31-5-mm\"}",
            "content_hash": "3ffc288714c9fbd84e4ac5cbd28a1f4ce956e0e7aa25aaddec6dccb157c1a626",
            "prev_hash": "e76d37355034406883c3ed3d5a1b2a01cb5ae8c9da1b7d4dc8a36eab54073579",
            "hash": "bc3d7714815fe097e171261f40add73057b554f4a5226a791a2a0a8d296b3e4b",
            "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": 4,
            "recorded_at": "2026-10-29T19:45:58Z",
            "content": "{\"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3856604/waz-do-powietrza-1-0-mpa-fi-31-5-mm\", \"buyer\": \"Cognor SA oddział Ferrostal Łabędy w Krakowie\", \"title\": \"WĄŻ DO POWIETRZA (1.0 MPa) FI 31,5 mm\", \"region\": \"malopolskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3856604\", \"deadline_at\": \"2026-11-06T06:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-28T04:54:27Z\", \"procedure_url\": \"https://cognor.logintrade.net/portal,szczegolyZapytaniaOfertowe,3059a08c52a9ed4d3a2dd864abcc6cc1.html\"}",
            "content_hash": "d3fe0a705e7cdd04474b3811bcb691665956cf1927f2f1c7ebaba738be673055",
            "prev_hash": "bc3d7714815fe097e171261f40add73057b554f4a5226a791a2a0a8d296b3e4b",
            "hash": "168edc2430c32a1c43ef0fd9fc649379ab270b9a6420a75fe9169a809611f7d5",
            "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
            }
        }
    ]
}