{
    "tender_id": 3138443,
    "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": "2026-10-24T13:58:39Z",
            "content": "{\"cpv\": \"73000000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/717373-2026\", \"buyer\": \"Arbeids- og inkluderingsdepartementet\", \"title\": \"Norwegia – Usługi badawcze i eksperymentalno-rozwojowe oraz pokrewne usługi doradcze – Follow-up evaluation of changes to the Integration Act.\", \"source\": \"ted_nor\", \"status\": \"active\", \"cpv_more\": [\"73200000\", \"73210000\"], \"location\": \"anyw, anyw\", \"source_id\": \"717373-2026\", \"deadline_at\": \"2026-11-20T11:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-16T02:00:00Z\"}",
            "content_hash": "7a954b3051fb1b56c37b2aba71d5ce84cd67bc73ae26b2ce2e291bb3d074ade1",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "5c9b0f39e7df98015518656d82c8c65a2c49db5fa074037d79ac2b4713c2f848",
            "actor": null,
            "seal": {
                "id": 1,
                "digest": "25686b149cfd327de10f8db2827c82e22b0d6a884d716cd11b36328364d6937d",
                "file": "https://tenderiq.pl/rejestr/pieczec-1.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-1.txt.ots",
                "bitcoin_block": 972985
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-25T11:37:42Z",
            "content": "{\"cpv\": \"73000000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/717373-2026\", \"buyer\": \"Arbeids- og inkluderingsdepartementet\", \"title\": \"Norwegia – Usługi badawcze i eksperymentalno-rozwojowe oraz pokrewne usługi doradcze – Kontynuacja oceny zmian w Akcie Integracji.\", \"source\": \"ted_nor\", \"status\": \"active\", \"cpv_more\": [\"73200000\", \"73210000\"], \"location\": \"anyw, anyw\", \"source_id\": \"717373-2026\", \"deadline_at\": \"2026-11-20T11:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-16T02:00:00Z\"}",
            "content_hash": "2bca399c87f3a17c3ceec57778789e33811c3011b43ef253ec32078ea2c8cb06",
            "prev_hash": "5c9b0f39e7df98015518656d82c8c65a2c49db5fa074037d79ac2b4713c2f848",
            "hash": "9fc234c156355f35a8253ba2e9233296a9edfcf9396c1f306aba872362dc5488",
            "actor": null,
            "seal": {
                "id": 2,
                "digest": "6af9ff920846d2ed2fae131d9f0f0d3d71bdf63cfd98a8a18b81289d63fe5e04",
                "file": "https://tenderiq.pl/rejestr/pieczec-2.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-2.txt.ots",
                "bitcoin_block": 973147
            }
        }
    ]
}