{
    "tender_id": 4713325,
    "check": {
        "ok": true,
        "versions": 2,
        "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": "2026-11-02T05:57:02Z",
            "content": "{\"cpv\": \"33158210\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/757845-2026\", \"buyer\": \"Wojewódzki Szpital Wielospecjalistyczny im. dr. Jana Jonstona w Lesznie\", \"title\": \"Polska – Stymulatory – Dostawy wyrobów medycznych do zabiegów elektroterapii serca\", \"region\": \"wielkopolskie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [\"33158200\"], \"location\": \"PL417, POL, PL417, PL417, PL417, PL417, PL417, PL417, PL417, PL417, PL417, PL417, PL417, PL417, PL417, PL417, PL417, PL417, PL417, PL417, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL\", \"source_id\": \"757845-2026\", \"deadline_at\": \"2026-12-01T08:30:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-11-02T01:00:00Z\"}",
            "content_hash": "13fc5c9a4eecdfbdf46adf43a62f981fc4ad1f228f307747136f9b31197fdbd7",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "2c3b3c8b144cdecd09494d42ed36d6d808401e0b148585f083fea12fb9dae703",
            "actor": null,
            "seal": {
                "id": 10,
                "digest": "297505af1d9d820e84b46bcdd40ae11b1ffc912134eeb69a764090ac7f9838b4",
                "file": "https://tenderiq.pl/rejestr/pieczec-10.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-10.txt.ots",
                "bitcoin_block": 974314
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-03T08:45:34Z",
            "content": "{\"cpv\": \"33158210\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/757845-2026\", \"buyer\": \"Wojewódzki Szpital Wielospecjalistyczny im. dr. Jana Jonstona w Lesznie\", \"title\": \"Polska – Stymulatory – Dostawy wyrobów medycznych do zabiegów elektroterapii serca\", \"region\": \"wielkopolskie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [\"33158200\"], \"location\": \"PL417, POL, PL417, PL417, PL417, PL417, PL417, PL417, PL417, PL417, PL417, PL417, PL417, PL417, PL417, PL417, PL417, PL417, PL417, PL417, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL\", \"source_id\": \"757845-2026\", \"deadline_at\": \"2026-12-01T08:30:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-11-02T01:00:00Z\", \"procedure_url\": \"https://ted.europa.eu/pl/notice/-/detail/757845-2026\"}",
            "content_hash": "8fb63b1805f2b1eadcbd1d717ff6d6018886b5591b93f81089e63336694c9bd8",
            "prev_hash": "2c3b3c8b144cdecd09494d42ed36d6d808401e0b148585f083fea12fb9dae703",
            "hash": "6808bb538791260cf061c612f37e5832c5c05d2df722b74d61850bc519218036",
            "actor": null,
            "seal": null
        }
    ]
}