{
    "tender_id": 6385423,
    "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": "2026-11-10T15:24:17Z",
            "content": "{\"url\": \"https://zakupy.grupapgz.pl/open-preview-auction.html/13857/mcbook\", \"buyer\": \"POLSKA GRUPA ZBROJENIOWA S.A.\", \"title\": \"McBook\", \"source\": \"pgz_eb2b\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"13857\", \"deadline_at\": \"2026-11-16T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-10T13:00:00Z\"}",
            "content_hash": "f8448661ef6d76b9fdff945f148136ae43d6ed74861eaab6c98bd641a7a6cecd",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "62770f379e397c5b36790dd7a236046cd15fc9a29340582b24cf019ddcc1e8d0",
            "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
            }
        }
    ]
}