{
    "tender_id": 3864065,
    "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": "2026-10-29T02:19:25Z",
            "content": "{\"cpv\": \"71310000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/749278-2026\", \"buyer\": \"Eurométropole de Strasbourg\", \"title\": \"Francja – Doradcze usługi inżynieryjne i budowlane – Mission de Maîtrise d'oeuvre relative au traitement des infiltrations du réservoir d'eau d'Oberhausbergen\", \"source\": \"ted_fra\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"FRF11, FRA, FRF11, FRA\", \"source_id\": \"749278-2026\", \"deadline_at\": \"2026-12-01T11:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-29T01:00:00Z\"}",
            "content_hash": "00a0445ad0e5ff4ecaa7e90dbda1767abd5583e8ff961f598b84b3192dc044d3",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "d433f08f6b83192e0d9c5982098cef58c3bab3c801c721c751dfc8d8e90f07e1",
            "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": "2026-10-30T04:38:21Z",
            "content": "{\"cpv\": \"71310000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/749278-2026\", \"buyer\": \"Eurométropole de Strasbourg\", \"title\": \"Francja – Doradcze usługi inżynieryjne i budowlane – Zlecenie kierownika robót budowlanych w zakresie usuwania infiltracji zbiornika wodnego w Oberhausbergen\", \"source\": \"ted_fra\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"FRF11, FRA, FRF11, FRA\", \"source_id\": \"749278-2026\", \"deadline_at\": \"2026-12-01T11:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-29T01:00:00Z\"}",
            "content_hash": "78c085d41d7296620b5d8ccbece5ac5c1a57458c742ba5c684428427c09da39d",
            "prev_hash": "d433f08f6b83192e0d9c5982098cef58c3bab3c801c721c751dfc8d8e90f07e1",
            "hash": "706404d0f5165ca1627ab56c778acc03f562abae599424b70a3de3a69dff479b",
            "actor": null,
            "seal": {
                "id": 7,
                "digest": "a9f75e7ec6726860fada5c5807cac164b76cf44582f14a01cd7b4a36f579f813",
                "file": "https://tenderiq.pl/rejestr/pieczec-7.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-7.txt.ots",
                "bitcoin_block": 973897
            }
        }
    ]
}