{
    "tender_id": 3359720,
    "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": "2026-10-26T09:36:31Z",
            "content": "{\"cpv\": \"45000000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/738266-2026\", \"buyer\": \"Stadt Trier\", \"title\": \"Niemcy – Roboty budowlane – 37EU/26 - 031.3 Außen-Tore - Hauptfeuerwache mit Rettungswache und Integrierter Leitstelle\", \"source\": \"ted_deu\", \"status\": \"active\", \"cpv_more\": [\"44221240\", \"44221300\"], \"location\": \"DEB21, DEU, DEB21, DEU\", \"source_id\": \"738266-2026\", \"deadline_at\": \"2026-11-05T10:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-26T01:00:00Z\"}",
            "content_hash": "437262880aa998e11b123da42d4038f6aa92b2752c7469a967cc13caaf7c1694",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "50015b72403d1e09df80751d817b2787a4b6cbe306465f8fe99c05e5f0dae328",
            "actor": null,
            "seal": {
                "id": 3,
                "digest": "1119fd2ade60dc88ac794742ff488b9486e8a488f9d77cc6d6a9444474dc1c77",
                "file": "https://tenderiq.pl/rejestr/pieczec-3.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-3.txt.ots",
                "bitcoin_block": 973309
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-26T23:16:35Z",
            "content": "{\"cpv\": \"45000000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/738266-2026\", \"buyer\": \"Stadt Trier\", \"title\": \"Niemcy – Roboty budowlane – 37EU/26 – 031.3 Drzwi zewnętrzne – Główna remiza gaśnicza z posterunkiem ratowniczym i zintegrowaną komendą taktyczną\", \"source\": \"ted_deu\", \"status\": \"active\", \"cpv_more\": [\"44221240\", \"44221300\"], \"location\": \"DEB21, DEU, DEB21, DEU\", \"source_id\": \"738266-2026\", \"deadline_at\": \"2026-11-05T10:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-26T01:00:00Z\"}",
            "content_hash": "2d5a41fa318901257c2fd69cb627a7880eaf0d75769daed5c461b4cc71b90295",
            "prev_hash": "50015b72403d1e09df80751d817b2787a4b6cbe306465f8fe99c05e5f0dae328",
            "hash": "5531a3beaa80d35df481833b8b7b7060b713944217e7f26d84342ad810cfbc9f",
            "actor": null,
            "seal": {
                "id": 4,
                "digest": "1a6d1144791ca08d9453bd1c8d38a6c251eb74cb6d377626fde25c11a52ccc7a",
                "file": "https://tenderiq.pl/rejestr/pieczec-4.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-4.txt.ots",
                "bitcoin_block": 973472
            }
        }
    ]
}