{
    "tender_id": 4931270,
    "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": "2026-11-03T06:22:43Z",
            "content": "{\"cpv\": \"48000000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/761370-2026\", \"buyer\": \"Gdańskie Nieruchomości\", \"title\": \"Polska – Pakiety oprogramowania i systemy informatyczne – Dostawa oprogramowania biurowego na potrzeby Gdańskich Nieruchomości.\", \"region\": \"pomorskie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"PL634, POL, PL634, POL\", \"source_id\": \"761370-2026\", \"deadline_at\": \"2026-11-30T11:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-11-03T01:00:00Z\"}",
            "content_hash": "551f3fd27cefa6aa4429063bfe7a4102479b37aa0ea07c03a7871396c377b5bd",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "75e799a977081c5d146507a29438b4c8e437ef384e402a030b767d296fe42f70",
            "actor": null,
            "seal": {
                "id": 11,
                "digest": "e9a17a70070a65f95be452321715a138cbb650567f41e2bae0faa2ffd562bbbd",
                "file": "https://tenderiq.pl/rejestr/pieczec-11.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-11.txt.ots",
                "bitcoin_block": 974456
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-04T10:46:25Z",
            "content": "{\"cpv\": \"48000000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/761370-2026\", \"buyer\": \"Gdańskie Nieruchomości\", \"title\": \"Polska – Pakiety oprogramowania i systemy informatyczne – Dostawa oprogramowania biurowego na potrzeby Gdańskich Nieruchomości.\", \"region\": \"pomorskie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"PL634, POL, PL634, POL\", \"source_id\": \"761370-2026\", \"deadline_at\": \"2026-11-30T11:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-11-03T01:00:00Z\", \"procedure_url\": \"https://ted.europa.eu/pl/notice/-/detail/761370-2026\"}",
            "content_hash": "d17ac52241adf274c92814b9820f04827ff6f63e93e99f5d2abdc49ab15b4105",
            "prev_hash": "75e799a977081c5d146507a29438b4c8e437ef384e402a030b767d296fe42f70",
            "hash": "610d31096c03bb95ab48b011000a386ec140aa82df6d5627285d6505df19195d",
            "actor": null,
            "seal": {
                "id": 12,
                "digest": "e23c0f5a7e440e937f514487a150dc1be40887f39a941304e364e5e94a4b77fc",
                "file": "https://tenderiq.pl/rejestr/pieczec-12.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-12.txt.ots",
                "bitcoin_block": 974604
            }
        }
    ]
}