{
    "tender_id": 3046960,
    "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\": \"72000000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/733642-2026\", \"buyer\": \"Kaiku24 Oy\", \"title\": \"Finlandia – Usługi informatyczne: konsultacyjne, opracowywania oprogramowania, internetowe i wsparcia – Perustietotekniikkapalvelut\", \"source\": \"ted_fin\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"anyw-eea, anyw-eea\", \"source_id\": \"733642-2026\", \"deadline_at\": \"2026-11-27T10:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-23T02:00:00Z\"}",
            "content_hash": "51e94094c694cf5e74d1ddf250cb5e00b44446b69c5b26473792c9c8bd4ba732",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "57da61a93e70f6d245c134c13063065d27e2ceed806ed91eb61d0b43ee4a6edd",
            "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": "2026-10-24T20:17:49Z",
            "content": "{\"cpv\": \"72000000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/733642-2026\", \"buyer\": \"Kaiku24 Oy\", \"title\": \"Finlandia – Usługi informatyczne: konsultacyjne, opracowywania oprogramowania, internetowe i wsparcia – Usługi IT Podstawowej\", \"source\": \"ted_fin\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"anyw-eea, anyw-eea\", \"source_id\": \"733642-2026\", \"deadline_at\": \"2026-11-27T10:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-23T02:00:00Z\"}",
            "content_hash": "adb19beff8f002d76a6358ab3ad1264bcf5ceb77c6929adc1a40af9fe60286f2",
            "prev_hash": "57da61a93e70f6d245c134c13063065d27e2ceed806ed91eb61d0b43ee4a6edd",
            "hash": "a30abbf34741c6ee4da622519c1225bbc8c2038c13793eb17ce1bed40ae9df3b",
            "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
            }
        }
    ]
}