{
    "tender_id": 4016686,
    "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": "2026-10-29T19:28:15Z",
            "content": "{\"url\": \"https://platformazakupowa.pl/transakcja/1400839\", \"buyer\": \"Szkoła Policji w Katowicach\", \"title\": \"Dostawa opon dla Szkoły Policji w Katowicach.\", \"region\": \"zachodniopomorskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1400839\", \"deadline_at\": \"2026-11-05T13:30:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T13:30:00Z\", \"notice_number\": \"1400839\"}",
            "content_hash": "fe16f63ef8acaf93faa718c09225d73ddc2bdcf0aba2e00e3150800e16dcfc82",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "aa2a2d5f334f8f8190b37188908e4eed7747b0e14d77b84f36565e0bfc5c252f",
            "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://platformazakupowa.pl/transakcja/1400839\", \"buyer\": \"Szkoła Policji w Katowicach\", \"title\": \"Dostawa opon dla Szkoły Policji w Katowicach.\", \"region\": \"zachodniopomorskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1400839\", \"deadline_at\": \"2026-11-05T13:30:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T13:30:00Z\", \"notice_number\": \"1400839\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1400839\"}",
            "content_hash": "56794215349aba5e64533f2a5beb2e8446469a63493978c17b2b2f39c58562a7",
            "prev_hash": "aa2a2d5f334f8f8190b37188908e4eed7747b0e14d77b84f36565e0bfc5c252f",
            "hash": "78933e82e5cb422770a1545534d9fd1e9b105b8404c5641d6f0782cc208a0239",
            "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
            }
        }
    ]
}