{
    "tender_id": 3653938,
    "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": "2026-10-27T21:11:21Z",
            "content": "{\"cpv\": \"34000000\", \"url\": \"https://platformazakupowa.pl/transakcja/1398731\", \"buyer\": \"Powiat Goleniowski\", \"title\": \"WK.272.1.2026 Wykonanie i dostawa oraz likwidacja tablic rejestracyjnych pojazdów\", \"region\": \"zachodniopomorskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [\"34640000\"], \"location\": \"Polska\", \"source_id\": \"1398731\", \"deadline_at\": \"2026-11-04T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-26T23:00:00Z\", \"notice_number\": \"1398731\"}",
            "content_hash": "474f2c4435985c46f91aea98e0d75fbcc7d4a347d02854f96c331404e9420370",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "cf63aabf11bd021aa837945eec2ac1763cfe72703491fea35781fa7a0356c6c0",
            "actor": null,
            "seal": {
                "id": 4,
                "digest": "1a6d1144791ca08d9453bd1c8d38a6c251eb74cb6d377626fde25c11a52ccc7a",
                "file": "https://tenderiq.pl/rejestr/pieczec-4.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-4.txt.ots",
                "bitcoin_block": 973472
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-27T23:32:45Z",
            "content": "{\"cpv\": \"34000000\", \"url\": \"https://platformazakupowa.pl/transakcja/1398731\", \"buyer\": \"Powiat Goleniowski\", \"title\": \"WK.272.1.2026 Wykonanie i dostawa oraz likwidacja tablic rejestracyjnych pojazdów\", \"region\": \"zachodniopomorskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [\"34640000\"], \"location\": \"Polska\", \"source_id\": \"1398731\", \"deadline_at\": \"2026-11-04T09:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-26T23:00:00Z\", \"notice_number\": \"1398731\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1398731\"}",
            "content_hash": "6d0a81b6e7afcd53117b468d3deb8b15a9df5ddc7464d63ea7e54aedb8994462",
            "prev_hash": "cf63aabf11bd021aa837945eec2ac1763cfe72703491fea35781fa7a0356c6c0",
            "hash": "f368a1312ae191a822f3b24a6dd417299f04dc830e6fcc4a18ee7b8d1115a4aa",
            "actor": null,
            "seal": {
                "id": 5,
                "digest": "0659ce1e2aadd7f69ed1ff4603a4290c070eaa14bbeed28a3c9a7cc2127acae9",
                "file": "https://tenderiq.pl/rejestr/pieczec-5.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-5.txt.ots",
                "bitcoin_block": 973609
            }
        }
    ]
}