{
    "tender_id": 3065063,
    "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": "2026-10-24T13:58:39Z",
            "content": "{\"cpv\": \"71530000\", \"url\": \"https://www.find-tender.service.gov.uk/Notice/089323-2026\", \"buyer\": \"University of Dundee\", \"title\": \"Wielka Brytania – Architectural Consultant Services\", \"source\": \"find_a_tender\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"UKM71, Dundee\", \"source_id\": \"ocds-h6vhtk-0776cf\", \"deadline_at\": \"2026-10-30T12:00:00Z\", \"notice_type\": \"Ogłoszenie Find a Tender\", \"published_at\": \"2026-09-21T15:29:28Z\", \"notice_number\": \"089323-2026\"}",
            "content_hash": "a0d4f79c9d4292ced9781f16ec15adbe3f5fb80646078275886414af9a3375b8",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "f0816b1476e5d00f09b841156a8c3e85a3255cff91d143f67676a10350836d9f",
            "actor": null,
            "seal": {
                "id": 1,
                "digest": "25686b149cfd327de10f8db2827c82e22b0d6a884d716cd11b36328364d6937d",
                "file": "https://tenderiq.pl/rejestr/pieczec-1.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-1.txt.ots",
                "bitcoin_block": 972985
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-24T14:08:30Z",
            "content": "{\"cpv\": \"71530000\", \"url\": \"https://www.find-tender.service.gov.uk/Notice/089323-2026\", \"buyer\": \"University of Dundee\", \"title\": \"Wielka Brytania – Usługi konsultanta architektonicznego\", \"source\": \"find_a_tender\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"UKM71, Dundee\", \"source_id\": \"ocds-h6vhtk-0776cf\", \"deadline_at\": \"2026-10-30T12:00:00Z\", \"notice_type\": \"Ogłoszenie Find a Tender\", \"published_at\": \"2026-09-21T15:29:28Z\", \"notice_number\": \"089323-2026\"}",
            "content_hash": "d9291ad586ad080c136a00cfce462e72d2c24bb805defe38bad193c1f9988f2a",
            "prev_hash": "f0816b1476e5d00f09b841156a8c3e85a3255cff91d143f67676a10350836d9f",
            "hash": "c6f332adfa4eebf75134505026ead592e78040ef60673906f3f1a9f88f68e7de",
            "actor": null,
            "seal": {
                "id": 1,
                "digest": "25686b149cfd327de10f8db2827c82e22b0d6a884d716cd11b36328364d6937d",
                "file": "https://tenderiq.pl/rejestr/pieczec-1.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-1.txt.ots",
                "bitcoin_block": 972985
            }
        }
    ]
}