{
    "tender_id": 6420265,
    "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": "2026-11-10T19:00:07Z",
            "content": "{\"cpv\": \"38421100\", \"url\": \"https://bogdanka.eb2b.com.pl/open-preview-auction.html/154382/wodomierz-3-4-fi-20\", \"buyer\": \"LUBELSKI WĘGIEL BOGDANKA S.A.\", \"title\": \"WODOMIERZ 3/4\\\" FI 20\", \"source\": \"bogdanka_eb2b\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"154382\", \"deadline_at\": \"2026-11-12T17:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-10T12:30:00Z\"}",
            "content_hash": "5bdac1f181f08b8b95c3ec080c2d7b71f4e72a63842de2dd2494965cfb04072b",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "5be5dfe69b39a2e77b3a819c6033774c90453c3d0eb7a6fb4826d5ac7a5fdea6",
            "actor": null,
            "seal": {
                "id": 18,
                "digest": "adeec00ed6b673509a2a075e675623159dccab6a142d1ac62c122cfe1d16794c",
                "file": "https://tenderiq.pl/rejestr/pieczec-18.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-18.txt.ots",
                "bitcoin_block": 975359
            }
        }
    ]
}