{
    "tender_id": 4772529,
    "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": "2026-11-02T12:58:05Z",
            "content": "{\"url\": \"https://platformazakupowa.pl/transakcja/1402186\", \"buyer\": \"28 Wojskowy Oddział Gospodarczy\", \"title\": \"ZAKUP MATERIAŁÓW MEDYCZNYCH\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1402186\", \"deadline_at\": \"2026-11-05T07:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-02T11:09:00Z\", \"notice_number\": \"1402186\"}",
            "content_hash": "b926ab588f2877b3d2fd36d0fe4bedf082e4fac3c68ad581c065f3f4675c5124",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "b95493b35a13ed70245c882a03f1598ff2e4796f55a3438016238df5c65431b8",
            "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": "2026-11-02T13:45:56Z",
            "content": "{\"url\": \"https://platformazakupowa.pl/transakcja/1402186\", \"buyer\": \"28 Wojskowy Oddział Gospodarczy\", \"title\": \"ZAKUP MATERIAŁÓW MEDYCZNYCH\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1402186\", \"deadline_at\": \"2026-11-05T07:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-02T11:09:00Z\", \"notice_number\": \"1402186\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1402186\"}",
            "content_hash": "c43550fd5296394d1eb3032a3405f1101431a4dd37fb6f6b2fd041860a10144c",
            "prev_hash": "b95493b35a13ed70245c882a03f1598ff2e4796f55a3438016238df5c65431b8",
            "hash": "c31bacf33905186b0c3ad41bbb501a792e235c7440bdeea6408eaba1466ca132",
            "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
            }
        }
    ]
}