{
    "tender_id": 3858700,
    "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": "2026-10-29T02:07:09Z",
            "content": "{\"cpv\": \"48000000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/751881-2026\", \"buyer\": \"Naukowa i Akademicka Sieć Komputerowa - Państwowy Instytut Badawczy\", \"title\": \"Polska – Pakiety oprogramowania i systemy informatyczne – Dostawa rozwiązania Threat Intelligence Platform (TIP)\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [\"72262000\", \"72260000\", \"72250000\"], \"location\": \"anyw, anyw\", \"buyer_nip\": \"5210417157\", \"source_id\": \"751881-2026\", \"deadline_at\": \"2026-11-30T10:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-29T01:00:00Z\"}",
            "content_hash": "15b2b11e91e10fba657b6c95b5ede8f23bc73e70fcf92d42576181fb201fc6c6",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "6c9f638e053a87c282d76acc2b9d6b27d5ac79c647cd6355672f2a0613695613",
            "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": "2026-10-29T19:31:04Z",
            "content": "{\"cpv\": \"48000000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/751881-2026\", \"buyer\": \"Naukowa i Akademicka Sieć Komputerowa - Państwowy Instytut Badawczy\", \"title\": \"Polska – Pakiety oprogramowania i systemy informatyczne – Dostawa rozwiązania Threat Intelligence Platform (TIP)\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [\"72262000\", \"72260000\", \"72250000\"], \"location\": \"anyw, anyw\", \"buyer_nip\": \"5210417157\", \"source_id\": \"751881-2026\", \"deadline_at\": \"2026-11-30T10:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-29T01:00:00Z\", \"procedure_url\": \"https://nask.eb2b.com.pl/open-preview-auction.html/536313/dostawa-rozwiazania-threat-intelligence-platform-tip\"}",
            "content_hash": "7d16b13845d28606794ec027d47321423ab6a314bbd1766583c2d40c553da964",
            "prev_hash": "6c9f638e053a87c282d76acc2b9d6b27d5ac79c647cd6355672f2a0613695613",
            "hash": "98b00235152966c88dee3e1eb1303bc46c727208f36b72f07822ada5d855a9ba",
            "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
            }
        }
    ]
}