{
    "tender_id": 3907795,
    "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": "2026-10-29T06:53:51Z",
            "content": "{\"cpv\": \"45000000\", \"url\": \"https://www.find-tender.service.gov.uk/Notice/102064-2026\", \"buyer\": \"Health and Safety Executive\", \"title\": \"Wielka Brytania – The Refurbishment of Building 42 to Create a New Gas Incident Investigation Laboratory\", \"source\": \"find_a_tender\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"UKF1\", \"source_id\": \"ocds-h6vhtk-078324\", \"deadline_at\": \"2026-11-24T13:00:00Z\", \"notice_type\": \"Ogłoszenie Find a Tender\", \"published_at\": \"2026-10-28T13:11:29Z\", \"notice_number\": \"102064-2026\"}",
            "content_hash": "8e3adeec53ae21dee694248563965611aee0730567fb1569b0e6b4b68514396a",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "09b883d0d79add38dd643cd07dff92acdb6b3b8a759deb67a819a8953400a497",
            "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": "2026-10-30T08:14:37Z",
            "content": "{\"cpv\": \"45000000\", \"url\": \"https://www.find-tender.service.gov.uk/Notice/102064-2026\", \"buyer\": \"Health and Safety Executive\", \"title\": \"Wielka Brytania – Remont budynku 42 w celu stworzenia nowego laboratorium do śledztw w przypadku incydentów gazowych\", \"source\": \"find_a_tender\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"UKF1\", \"source_id\": \"ocds-h6vhtk-078324\", \"deadline_at\": \"2026-11-24T13:00:00Z\", \"notice_type\": \"Ogłoszenie Find a Tender\", \"published_at\": \"2026-10-28T13:11:29Z\", \"notice_number\": \"102064-2026\"}",
            "content_hash": "1ed04a461c44ffcab6994db623dfa660cec55c42e82290a3643b25450f5ad342",
            "prev_hash": "09b883d0d79add38dd643cd07dff92acdb6b3b8a759deb67a819a8953400a497",
            "hash": "2d238470f44fe81416205d30c799df46c63c3218abaa2ec881808991882d7846",
            "actor": null,
            "seal": null
        }
    ]
}