{
    "tender_id": 5678055,
    "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": "2026-11-06T20:02:22Z",
            "content": "{\"cpv\": \"39294100\", \"url\": \"https://platformazakupowa.pl/transakcja/1405770\", \"buyer\": \"Centrum Szkolenia Policji\", \"title\": \"Reklamówki świąteczne\", \"region\": \"zachodniopomorskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1405770\", \"deadline_at\": \"2026-11-09T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-06T12:09:00Z\", \"notice_number\": \"1405770\"}",
            "content_hash": "7a7150cb7973e55c6df89ada5315ccc5241cecee68ac0794f5455610d307b146",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "ec6630a20fd4103d9c87164d9c73d85a3b183675683c978178f9f129aba5fe00",
            "actor": null,
            "seal": {
                "id": 14,
                "digest": "40311773b0ad96735478ea3fd2d0f50746aa4156eaa6f667f3f02f9a13460e6d",
                "file": "https://tenderiq.pl/rejestr/pieczec-14.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-14.txt.ots",
                "bitcoin_block": 974874
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-06T20:45:39Z",
            "content": "{\"cpv\": \"39294100\", \"url\": \"https://platformazakupowa.pl/transakcja/1405770\", \"buyer\": \"Centrum Szkolenia Policji\", \"title\": \"Reklamówki świąteczne\", \"region\": \"zachodniopomorskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1405770\", \"deadline_at\": \"2026-11-09T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-06T12:09:00Z\", \"notice_number\": \"1405770\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1405770\"}",
            "content_hash": "76299b868e91587a4f5fe2c579e52abaf104de4aef45eeea9bd14f501fec30dd",
            "prev_hash": "ec6630a20fd4103d9c87164d9c73d85a3b183675683c978178f9f129aba5fe00",
            "hash": "f2b1863d13c78afb870695dd3c9a51065f8849dc53f97b22e0ecc7d67530413d",
            "actor": null,
            "seal": {
                "id": 14,
                "digest": "40311773b0ad96735478ea3fd2d0f50746aa4156eaa6f667f3f02f9a13460e6d",
                "file": "https://tenderiq.pl/rejestr/pieczec-14.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-14.txt.ots",
                "bitcoin_block": 974874
            }
        }
    ]
}