{
    "tender_id": 4021987,
    "check": {
        "ok": true,
        "versions": 2,
        "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": "2026-10-29T19:39:20Z",
            "content": "{\"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3861153/zakup-oslon-okiennych\", \"buyer\": \"41 Baza Lotnictwa Szkolnego\", \"title\": \"Zakup osłon okiennych\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3861153\", \"deadline_at\": \"2026-11-05T12:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-29T19:39:20Z\"}",
            "content_hash": "0864006a958251a064fbcf982511bf4543d7a53177bce2c1aeb4d039972fd017",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "26ba0313d1b2878373028b7162ddab86246edd5189cca69fa2c4ac8ae5783c71",
            "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": 2,
            "recorded_at": "2026-10-29T19:46:01Z",
            "content": "{\"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3861153/zakup-oslon-okiennych\", \"buyer\": \"41 Baza Lotnictwa Szkolnego\", \"title\": \"Zakup osłon okiennych\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3861153\", \"deadline_at\": \"2026-11-05T12:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-29T19:39:20Z\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1400648\"}",
            "content_hash": "91111f31a9467082a9e22a909c7cdc252b599a6d52b1172814941f491e65d7af",
            "prev_hash": "26ba0313d1b2878373028b7162ddab86246edd5189cca69fa2c4ac8ae5783c71",
            "hash": "25ba565f7a9a3c1746cccaad1d697c91b4ddd4d6c11230c9f9df7f7589bb0cfc",
            "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
            }
        }
    ]
}