{
    "tender_id": 3090354,
    "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\": \"39111100\", \"url\": \"https://umopole.logintrade.net/zapytania_email,243250,5c551996bdf38ecfe28b11e1266faf8d.html\", \"buyer\": \"Miasto Opole\", \"title\": \"Zakup i dostawa fabrycznie nowych,nieużywanych urządzeń przeznaczonych\", \"region\": \"opolskie\", \"source\": \"pzp24_open\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"243250-5c551996bdf38ecfe28b11e1266faf8d\", \"deadline_at\": \"2026-11-05T08:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-10-23T15:54:00Z\", \"procedure_url\": \"https://umopole.logintrade.net/zapytania_email,243250,5c551996bdf38ecfe28b11e1266faf8d.html\"}",
            "content_hash": "cdd2112f31d40f0ede8db9795d3f5c96911c9854f8ffa04ef39ccb5bd0fc963f",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "273894c808542de77090b2514fd2810b23230155429f00afa9c5c8dee3f2d62b",
            "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
            }
        }
    ]
}