{
    "tender_id": 4931523,
    "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": "2026-11-03T06:23:01Z",
            "content": "{\"cpv\": \"66510000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/762569-2026\", \"buyer\": \"Centralna Stacja Ratownictwa Górniczego S.A.\", \"title\": \"Polska – Usługi ubezpieczeniowe – Usługa ubezpieczenia\", \"region\": \"slaskie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"PL228, POL, PL228, PL228, PL228, POL, POL, POL\", \"buyer_nip\": \"6260003820\", \"source_id\": \"762569-2026\", \"deadline_at\": \"2026-11-16T08:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-11-03T01:00:00Z\"}",
            "content_hash": "10b2648cfd4f0ff643616ffcf9b5c57fce40b3e89a5f2d3af2bf4c755bda11c7",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "1c664e91faf5ab218e8a81f9f9e4eac18b96cfa3fd16b526451ff43bd1bef809",
            "actor": null,
            "seal": null
        }
    ]
}