{
    "tender_id": 3065029,
    "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\": \"71321000\", \"url\": \"https://www.find-tender.service.gov.uk/Notice/090374-2026\", \"buyer\": \"University of Dundee\", \"title\": \"Wielka Brytania – Mechanical and Electrical Design Consultant Services\", \"source\": \"find_a_tender\", \"status\": \"active\", \"cpv_more\": [\"71350000\", \"71336000\", \"71333000\", \"71334000\", \"71242000\", \"71320000\", \"79415200\", \"79930000\", \"79933000\"], \"location\": \"UKM71, Dundee\", \"source_id\": \"ocds-h6vhtk-077918\", \"deadline_at\": \"2026-10-30T12:00:00Z\", \"notice_type\": \"Ogłoszenie Find a Tender\", \"published_at\": \"2026-09-24T07:40:21Z\", \"notice_number\": \"090374-2026\"}",
            "content_hash": "0e8ff66757d20aa9419b3aae31dd2307b804174b93f56a0d1dc52b604e44641d",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "a74ecce0d3bf941af6111d9b72b04879e4333f10f4e0101a658487e61b9fd6ce",
            "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": "2026-10-24T14:08:01Z",
            "content": "{\"cpv\": \"71321000\", \"url\": \"https://www.find-tender.service.gov.uk/Notice/090374-2026\", \"buyer\": \"University of Dundee\", \"title\": \"Wielka Brytania – Usługi Konsultanta Projektanta Mechanicznego i Elektrycznego\", \"source\": \"find_a_tender\", \"status\": \"active\", \"cpv_more\": [\"71350000\", \"71336000\", \"71333000\", \"71334000\", \"71242000\", \"71320000\", \"79415200\", \"79930000\", \"79933000\"], \"location\": \"UKM71, Dundee\", \"source_id\": \"ocds-h6vhtk-077918\", \"deadline_at\": \"2026-10-30T12:00:00Z\", \"notice_type\": \"Ogłoszenie Find a Tender\", \"published_at\": \"2026-09-24T07:40:21Z\", \"notice_number\": \"090374-2026\"}",
            "content_hash": "cc2c57fede4eaafb377eedc2e0ee89753b0fa10d76cb84e8e66b4fb5647c201c",
            "prev_hash": "a74ecce0d3bf941af6111d9b72b04879e4333f10f4e0101a658487e61b9fd6ce",
            "hash": "df0b4622b3b38952dbff2fc84f20d119a9711daf28476c5d3175e56e72a13806",
            "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
            }
        }
    ]
}