{
    "tender_id": 3364252,
    "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": "2026-10-26T09:46:13Z",
            "content": "{\"cpv\": \"45210000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/737436-2026\", \"buyer\": \"Bundesimmobiliengesellschaft m.b.H. vertreten durch Unternehmensbereich Spezialimmobilien\", \"title\": \"Austria – Roboty budowlane w zakresie budynków – 1080 Wien, Landesgerichtsstraße 9a-11 und Wickenburggasse 18-20, Justizzentrum für Strafsachen Wien (Landesgericht und Justizanstalt) - Funktions- und Bestandssanierung; Baumeisterarbeiten BPH 4-6\", \"source\": \"ted_aut\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"AT130, AUT\", \"source_id\": \"737436-2026\", \"deadline_at\": \"2026-11-26T09:30:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-26T01:00:00Z\"}",
            "content_hash": "90f39ef0eb8819a71c59e94ca67baa23ed21a9a54bdddb85348f967c7eca8908",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "2042cae080acdd8e2812ebac0d630e9ea80117357ed2167c96f61251eaf54649",
            "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": "2026-10-26T23:17:26Z",
            "content": "{\"cpv\": \"45210000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/737436-2026\", \"buyer\": \"Bundesimmobiliengesellschaft m.b.H. vertreten durch Unternehmensbereich Spezialimmobilien\", \"title\": \"Austria – Roboty budowlane w zakresie budynków – 1080 Wiedeń, Landesgerichtsstraße 9a-11 und Wickenburggasse 18-20, Justizzentrum für Strafsachen Wien (Landesgericht und Justizanstalt) – przebudowa/remont funkcjonalny i stanowy; roboty budowlane BPH 4-6\", \"source\": \"ted_aut\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"AT130, AUT\", \"source_id\": \"737436-2026\", \"deadline_at\": \"2026-11-26T09:30:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-26T01:00:00Z\"}",
            "content_hash": "380baf2ea6226a044d75347535e7afe534d036e89dfd08bcb264db40d82cc492",
            "prev_hash": "2042cae080acdd8e2812ebac0d630e9ea80117357ed2167c96f61251eaf54649",
            "hash": "c4c1d12b4fe08718842bf0d643d1976c5fab1b4f001069f0f25fca7f951e7449",
            "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
            }
        }
    ]
}