{
    "tender_id": 5142144,
    "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": "2026-11-04T07:13:15Z",
            "content": "{\"cpv\": \"38000000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/766787-2026\", \"buyer\": \"Uniwersytet Rzeszowski\", \"title\": \"Polska – Sprzęt laboratoryjny, optyczny i precyzyjny (z wyjątkiem szklanego) – „Dostawa wagi laboratoryjnej\\\"\", \"region\": \"podkarpackie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"PL823, POL, PL823, POL\", \"buyer_nip\": \"8133238822\", \"source_id\": \"766787-2026\", \"deadline_at\": \"2026-12-04T09:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-11-04T01:00:00Z\"}",
            "content_hash": "44ca3ac454e4d77b1a7cdfa657972cd97e5367fd9588eee5a4594969bd08f0ce",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "1a947d8498c4ecb8e9d8e75b6e0d21685582f7e2afd1f0ff2ad31405fd314f7c",
            "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
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-04T14:45:21Z",
            "content": "{\"cpv\": \"38000000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/766787-2026\", \"buyer\": \"Uniwersytet Rzeszowski\", \"title\": \"Polska – Sprzęt laboratoryjny, optyczny i precyzyjny (z wyjątkiem szklanego) – „Dostawa wagi laboratoryjnej\\\"\", \"region\": \"podkarpackie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"PL823, POL, PL823, POL\", \"buyer_nip\": \"8133238822\", \"source_id\": \"766787-2026\", \"deadline_at\": \"2026-12-04T09:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-11-04T01:00:00Z\", \"procedure_url\": \"https://ur-edu.logintrade.net/zapytania_email,244356,00940b4ff6a76aee4398023e4695e030.html\"}",
            "content_hash": "1c8bf7287cd3b1a2900f0e4cf6ca3a5c8113d55f6b96887ac53896c1098c32c5",
            "prev_hash": "1a947d8498c4ecb8e9d8e75b6e0d21685582f7e2afd1f0ff2ad31405fd314f7c",
            "hash": "0418eb899ed8742a231abeb916c4e4189d99e1b705ac67efbe83e0f977186109",
            "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
            }
        }
    ]
}