{
    "tender_id": 3926814,
    "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": "2026-10-29T10:16:09Z",
            "content": "{\"cpv\": \"90710000\", \"url\": \"https://platformazakupowa.pl/transakcja/1400370\", \"buyer\": \"KWP Bydgoszcz\", \"title\": \"Dostawa fotopułapki\", \"region\": \"kujawsko-pomorskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1400370\", \"deadline_at\": \"2026-11-04T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T09:39:00Z\", \"notice_number\": \"1400370\"}",
            "content_hash": "dee391329411a1b02307ee8847f8df94ceb939be445829c73e5967ab825165a9",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "8fb147f0bce268c968c35671f7f8271ce94e42a322bcd0226f721614c5cd915a",
            "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": "2026-10-29T11:45:35Z",
            "content": "{\"cpv\": \"90710000\", \"url\": \"https://platformazakupowa.pl/transakcja/1400370\", \"buyer\": \"KWP Bydgoszcz\", \"title\": \"Dostawa fotopułapki\", \"region\": \"kujawsko-pomorskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1400370\", \"deadline_at\": \"2026-11-04T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T09:39:00Z\", \"notice_number\": \"1400370\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1400370\"}",
            "content_hash": "b8d02045bef979aa8e51cc7a2de8cd92b6122ab262af66e52586907cd37b8bf6",
            "prev_hash": "8fb147f0bce268c968c35671f7f8271ce94e42a322bcd0226f721614c5cd915a",
            "hash": "6daf6b079c988edc73238960c976646c2fbe42c51c970bc7f291e3216f3f41a6",
            "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
            }
        }
    ]
}