{
    "tender_id": 3063919,
    "check": {
        "ok": true,
        "versions": 1,
        "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\": \"22314000\", \"url\": \"https://www.find-tender.service.gov.uk/Notice/099712-2026\", \"buyer\": \"Northern Trains Ltd\", \"title\": \"Wielka Brytania – Neville Hill 195 Heavy Maintenance Outline Designs\", \"source\": \"find_a_tender\", \"status\": \"active\", \"cpv_more\": [\"79314000\"], \"location\": \"UKE42\", \"source_id\": \"ocds-h6vhtk-078d5a\", \"deadline_at\": \"2026-11-23T16:00:00Z\", \"notice_type\": \"Ogłoszenie Find a Tender\", \"published_at\": \"2026-10-21T16:47:52Z\", \"notice_number\": \"099712-2026\"}",
            "content_hash": "5a4dbd8c16f5de4dba2da36006172c90be6b35eed459820079a1eb768df74c5e",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "23328592dea8304e101e9590514b17a515cb889ddee5ddf1107051016ab4afb9",
            "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
            }
        }
    ]
}