{
    "tender_id": 5223570,
    "check": {
        "ok": true,
        "versions": 5,
        "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": "2026-11-04T16:38:32Z",
            "content": "{\"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3872848/zakup-artykulow-biurowych\", \"buyer\": \"Miasto Ostrołęka\", \"title\": \"Zakup artykułów biurowych\", \"region\": \"mazowieckie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3872848\", \"deadline_at\": \"2026-11-09T09:51:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-04T16:38:33Z\"}",
            "content_hash": "40f86b9ccf3d57fd61bd82f8a46c33b89578aa894f97a229b37618cba42c0eb0",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "354c0ad9a178509108fe2d35304e77509c2ca49f5fef41dfc95653838eb0d9bb",
            "actor": null,
            "seal": {
                "id": 12,
                "digest": "e23c0f5a7e440e937f514487a150dc1be40887f39a941304e364e5e94a4b77fc",
                "file": "https://tenderiq.pl/rejestr/pieczec-12.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-12.txt.ots",
                "bitcoin_block": 974604
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-04T20:45:28Z",
            "content": "{\"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3872848/zakup-artykulow-biurowych\", \"buyer\": \"Miasto Ostrołęka\", \"title\": \"Zakup artykułów biurowych\", \"region\": \"mazowieckie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3872848\", \"deadline_at\": \"2026-11-09T09:51:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-04T16:38:33Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3872848/zakup-artykulow-biurowych\"}",
            "content_hash": "6d121edd55427f4e04386b28b620c1e2923a9d2d200d36fbf60624b8da515c05",
            "prev_hash": "354c0ad9a178509108fe2d35304e77509c2ca49f5fef41dfc95653838eb0d9bb",
            "hash": "60bf7b1b3f42def6f4fbabf09fd028ce64bf0accbe00d0d0228d70a71a2642d1",
            "actor": null,
            "seal": {
                "id": 12,
                "digest": "e23c0f5a7e440e937f514487a150dc1be40887f39a941304e364e5e94a4b77fc",
                "file": "https://tenderiq.pl/rejestr/pieczec-12.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-12.txt.ots",
                "bitcoin_block": 974604
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-11-07T10:08:41Z",
            "content": "{\"cpv\": \"30100000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3872848/zakup-artykulow-biurowych\", \"buyer\": \"Miasto Ostrołęka\", \"title\": \"Zakup artykułów biurowych\", \"region\": \"mazowieckie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3872848\", \"deadline_at\": \"2026-11-09T09:51:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-04T16:38:33Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3872848/zakup-artykulow-biurowych\"}",
            "content_hash": "f145fdc5918eb7daed5f9214fad1dbbc517a5d21f52503d5f1bdbcddb7dcc733",
            "prev_hash": "60bf7b1b3f42def6f4fbabf09fd028ce64bf0accbe00d0d0228d70a71a2642d1",
            "hash": "c59525277e727405f04e1a65f7727225ca3c2538a47546662c3f4a1729af6b24",
            "actor": null,
            "seal": {
                "id": 15,
                "digest": "f6c36eda82d4dc4a4cabf73097f0dd62e17d55fa4f2594c5f095c0de4855ff5a",
                "file": "https://tenderiq.pl/rejestr/pieczec-15.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-15.txt.ots",
                "bitcoin_block": 975002
            }
        },
        {
            "version": 4,
            "recorded_at": "2026-11-08T08:45:43Z",
            "content": "{\"cpv\": \"30100000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3872848/zakup-artykulow-biurowych\", \"buyer\": \"Miasto Ostrołęka\", \"title\": \"Zakup artykułów biurowych\", \"region\": \"mazowieckie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3872848\", \"deadline_at\": \"2026-11-09T09:51:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-04T16:38:33Z\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1403691\"}",
            "content_hash": "9498e7087abb7f5467246f47de1d0534df3cd22b73bdc2e2d17945ae444f5e56",
            "prev_hash": "c59525277e727405f04e1a65f7727225ca3c2538a47546662c3f4a1729af6b24",
            "hash": "821ef073ce33247a7770dd642e5d137ed729aae218c4605467925981e2381f1a",
            "actor": null,
            "seal": null
        },
        {
            "version": 5,
            "recorded_at": "2026-11-08T16:45:45Z",
            "content": "{\"cpv\": \"30100000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3872848/zakup-artykulow-biurowych\", \"buyer\": \"Miasto Ostrołęka\", \"title\": \"Zakup artykułów biurowych\", \"region\": \"mazowieckie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3872848\", \"deadline_at\": \"2026-11-09T09:51:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-04T16:38:33Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3872848/zakup-artykulow-biurowych\"}",
            "content_hash": "f145fdc5918eb7daed5f9214fad1dbbc517a5d21f52503d5f1bdbcddb7dcc733",
            "prev_hash": "821ef073ce33247a7770dd642e5d137ed729aae218c4605467925981e2381f1a",
            "hash": "8583172fba140819ff0a822db08a669926faf3d2bb1e4539232d24e107cf1139",
            "actor": null,
            "seal": null
        }
    ]
}