{
    "tender_id": 2145711,
    "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\": \"38000000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/722579-2026\", \"buyer\": \"INSTYTUT AGROFIZYKI IM.BOHDANA DOBRZAŃSKIEGO POLSKIEJ AKADEMII NAUK\", \"title\": \"Polska – Sprzęt laboratoryjny, optyczny i precyzyjny (z wyjątkiem szklanego) – Dostawa systemu obrazowania fluorescencyjnego na rzecz Instytutu Agrofizyki im. Bohdana Dobrzańskiego PAN w Lublinie\", \"region\": \"lubelskie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [\"38500000\"], \"location\": \"PL814, POL, PL814, POL\", \"buyer_nip\": \"9461824287\", \"source_id\": \"722579-2026\", \"deadline_at\": \"2026-11-20T11:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-19T02:00:00Z\", \"procedure_url\": \"https://ipanlublin.ezamawiajacy.pl/pn/ipanlublin/demand/notice/public/239086/details\"}",
            "content_hash": "3b26c9f9bfd091d62dd5f62abad466a0bb1f3a2d10ff61acf3d46d4e18cfd141",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "8a37e3723c86b58265a2142528bee1258df7cbe42467a7844b9126c1e780023f",
            "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
            }
        }
    ]
}