{
    "tender_id": 1079773,
    "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\": \"09100000\", \"url\": \"https://zamowienia.sidaspzp.pl/zamowienia/5e3573bf-a136-4d43-a9bb-b9c5ded75280\", \"buyer\": \"Polkowicka Dolina Recyklingu sp. z o.o.\", \"title\": \"Dostawa i transport oleju napędowego ON do Zakładu Gospodarki Odpadami.\", \"region\": \"dolnoslaskie\", \"source\": \"sidas_pzp\", \"status\": \"active\", \"cpv_more\": [\"09134000\"], \"location\": \"Polkowice\", \"source_id\": \"5e3573bf-a136-4d43-a9bb-b9c5ded75280\", \"deadline_at\": \"2026-11-13T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-07T07:37:00Z\", \"procedure_url\": \"https://zamowienia.sidaspzp.pl/zamowienia/5e3573bf-a136-4d43-a9bb-b9c5ded75280\"}",
            "content_hash": "bbc218d30a5e25a0caf42f475d4b005eb86e245e8edc777d8ae5c50b9a787956",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "4f896489b9334025449837c0ed145707c76b36e11008af1ede60a332a298d42d",
            "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
            }
        }
    ]
}