{
    "tender_id": 1080247,
    "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": "{\"url\": \"https://zakupy.grupapgz.pl/open-preview-auction.html/13319/modernizacja-frezarki\", \"buyer\": \"POLSKA GRUPA ZBROJENIOWA S.A.\", \"title\": \"Modernizacja Frezarki\", \"source\": \"pgz_eb2b\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"13319\", \"deadline_at\": \"2026-10-31T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-02T10:00:00Z\"}",
            "content_hash": "578205eed54df9b36006b0b64d80aae51e625c379de3fad0e88b70e2559eed9e",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "91bd09ef30091e363bb7820f39af9a10a2761ee982c3b3b383658f11ad812472",
            "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
            }
        }
    ]
}