{
    "tender_id": 4016162,
    "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": "2026-10-29T19:06:16Z",
            "content": "{\"url\": \"https://platformazakupowa.pl/transakcja/1400504\", \"buyer\": \"Centrum Szkolenia Policji\", \"title\": \"Koperty bezpieczne foliowe Policja\", \"region\": \"zachodniopomorskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1400504\", \"deadline_at\": \"2026-11-02T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-28T23:00:00Z\", \"notice_number\": \"1400504\"}",
            "content_hash": "51c96dd47d7961ddf4d4a677e07c3c05d9dc3ad23db47e01e2fb5073b2561829",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "6e6a46605c6a0e25b16da98de73cf2cdf36b2d98378805a0f2babeb4b32c22f4",
            "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": "2026-10-29T19:46:02Z",
            "content": "{\"url\": \"https://platformazakupowa.pl/transakcja/1400504\", \"buyer\": \"Centrum Szkolenia Policji\", \"title\": \"Koperty bezpieczne foliowe Policja\", \"region\": \"zachodniopomorskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1400504\", \"deadline_at\": \"2026-11-02T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-28T23:00:00Z\", \"notice_number\": \"1400504\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1400504\"}",
            "content_hash": "7161a368d59fc9127e460d72cb0915650002544450dae0c402c57e334fd21988",
            "prev_hash": "6e6a46605c6a0e25b16da98de73cf2cdf36b2d98378805a0f2babeb4b32c22f4",
            "hash": "519ec375befffdfe2f5c5e84288f9de205fdb7fc079df40267043f5049a7a725",
            "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
            }
        }
    ]
}