{
    "tender_id": 4798823,
    "check": {
        "ok": true,
        "versions": 3,
        "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": "2026-11-02T17:34:59Z",
            "content": "{\"cpv\": \"09135100\", \"url\": \"https://zamowienia.powiatchelmski.pl/#/offer/542927df-a30a-4442-b419-0a7a95de489b\", \"buyer\": \"STAROSTWO POWIATOWE W CHEŁMIE\", \"title\": \"Zakup oleju grzewczego dla Liceum Ogólnokształcącego w Dubience\", \"region\": \"lubelskie\", \"source\": \"zamowienia_powiatchelmski_pl_zeto\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"542927df-a30a-4442-b419-0a7a95de489b\", \"deadline_at\": \"2026-11-10T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-02T12:00:38Z\"}",
            "content_hash": "964224ad43e023495921ba68591f1edc2d0c327fbefdef2c23a484a15a2cb536",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "9a045037aa7ba028fdd2f60cab23367b7864cd42829daee9bc42ca12513c6df1",
            "actor": null,
            "seal": {
                "id": 10,
                "digest": "297505af1d9d820e84b46bcdd40ae11b1ffc912134eeb69a764090ac7f9838b4",
                "file": "https://tenderiq.pl/rejestr/pieczec-10.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-10.txt.ots",
                "bitcoin_block": 974314
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-02T17:45:20Z",
            "content": "{\"cpv\": \"09135100\", \"url\": \"https://zamowienia.powiatchelmski.pl/#/offer/542927df-a30a-4442-b419-0a7a95de489b\", \"buyer\": \"STAROSTWO POWIATOWE W CHEŁMIE\", \"title\": \"Zakup oleju grzewczego dla Liceum Ogólnokształcącego w Dubience\", \"region\": \"lubelskie\", \"source\": \"zamowienia_powiatchelmski_pl_zeto\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"542927df-a30a-4442-b419-0a7a95de489b\", \"deadline_at\": \"2026-11-10T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-02T12:00:38Z\", \"procedure_url\": \"https://zamowienia.powiatchelmski.pl/#/offer/542927df-a30a-4442-b419-0a7a95de489b\"}",
            "content_hash": "f04f142fc6385830b80b0f95aae0f9858c19c1967892f2068f65895a7720a225",
            "prev_hash": "9a045037aa7ba028fdd2f60cab23367b7864cd42829daee9bc42ca12513c6df1",
            "hash": "bb3a57ad0a071a3df2918116232bfae0d2d21c46deede41c5301f66e04c52839",
            "actor": null,
            "seal": {
                "id": 10,
                "digest": "297505af1d9d820e84b46bcdd40ae11b1ffc912134eeb69a764090ac7f9838b4",
                "file": "https://tenderiq.pl/rejestr/pieczec-10.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-10.txt.ots",
                "bitcoin_block": 974314
            }
        },
        {
            "version": 3,
            "recorded_at": "2026-11-05T13:45:45Z",
            "content": "{\"cpv\": \"09135100\", \"url\": \"https://zamowienia.powiatchelmski.pl/#/offer/542927df-a30a-4442-b419-0a7a95de489b\", \"buyer\": \"STAROSTWO POWIATOWE W CHEŁMIE\", \"title\": \"Zakup oleju grzewczego dla Liceum Ogólnokształcącego w Dubience\", \"region\": \"lubelskie\", \"source\": \"zamowienia_powiatchelmski_pl_zeto\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"542927df-a30a-4442-b419-0a7a95de489b\", \"deadline_at\": \"2026-11-10T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-02T12:00:38Z\", \"procedure_url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3868056/zakup-oleju-grzewczego-dla-liceum-ogolnoksztalcacego-w-dubience\"}",
            "content_hash": "13c18cc294e00a51be0fe091944c4006afa9f432035ebf8f1745ed02afefc90a",
            "prev_hash": "bb3a57ad0a071a3df2918116232bfae0d2d21c46deede41c5301f66e04c52839",
            "hash": "531f66ae88e6fe7d5388a1739305914b24e31c2409ca19ad3463cf9da28bbbfd",
            "actor": null,
            "seal": null
        }
    ]
}