{
    "tender_id": 4813313,
    "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": "2026-11-02T19:29:28Z",
            "content": "{\"url\": \"https://platformazakupowa.pl/transakcja/1402400\", \"buyer\": \"MASTER - Odpady i Energia Sp. z o.o.\", \"title\": \"WUOP/10/26/0132 Dostawa wraz z montażem bram\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1402400\", \"deadline_at\": \"2026-11-10T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-02T13:25:00Z\", \"notice_number\": \"1402400\"}",
            "content_hash": "83e531ac353a9f8bf2cd4ccb859258b79c1060c33f339f682f58c9c715095395",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "1c834b16b69a27e381fb30b7a937348bfcff61bc9e3a78317a24a3b720f7f2a0",
            "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": "2026-11-02T20:45:34Z",
            "content": "{\"url\": \"https://platformazakupowa.pl/transakcja/1402400\", \"buyer\": \"MASTER - Odpady i Energia Sp. z o.o.\", \"title\": \"WUOP/10/26/0132 Dostawa wraz z montażem bram\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1402400\", \"deadline_at\": \"2026-11-10T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-02T13:25:00Z\", \"notice_number\": \"1402400\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1402400\"}",
            "content_hash": "bdb016c3451cce1b7b8a9630d35a91a3ae1436eb40cdb2aec43885238207d6ad",
            "prev_hash": "1c834b16b69a27e381fb30b7a937348bfcff61bc9e3a78317a24a3b720f7f2a0",
            "hash": "505939fad344102c809dfb6364e1590b46aa4506684f2e07ceadd8512bf5fb83",
            "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
            }
        }
    ]
}