{
    "tender_id": 4813222,
    "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": "2026-11-02T19:26:23Z",
            "content": "{\"cpv\": \"31122000\", \"url\": \"https://platformazakupowa.pl/transakcja/1402365\", \"buyer\": \"Powiat Białobrzeski\", \"title\": \"WSZ.272.11.2026.MN „Zakup agregatów prądotwórczych na potrzeby Miejsc Doraźnego Schronienia w budynkach Starostwa”\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [\"31121100\", \"31120000\", \"31121000\", \"51111200\", \"45311000\"], \"location\": \"Polska\", \"source_id\": \"1402365\", \"deadline_at\": \"2026-11-09T13:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-01T23:00:00Z\", \"notice_number\": \"1402365\"}",
            "content_hash": "98ae798fcbef2cebda8f28cf34deb4c2e423c3253603f87337d08b3dc832107f",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "e5df3c9198fb0a45afc0f7e3512e10061a8d7c99d905e8175a3c6fec378cd6a3",
            "actor": null,
            "seal": {
                "id": 10,
                "digest": "297505af1d9d820e84b46bcdd40ae11b1ffc912134eeb69a764090ac7f9838b4",
                "file": "https://tenderiq.pl/rejestr/pieczec-10.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-10.txt.ots",
                "bitcoin_block": 974314
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-02T19:45:50Z",
            "content": "{\"cpv\": \"31122000\", \"url\": \"https://platformazakupowa.pl/transakcja/1402365\", \"buyer\": \"Powiat Białobrzeski\", \"title\": \"WSZ.272.11.2026.MN „Zakup agregatów prądotwórczych na potrzeby Miejsc Doraźnego Schronienia w budynkach Starostwa”\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [\"31121100\", \"31120000\", \"31121000\", \"51111200\", \"45311000\"], \"location\": \"Polska\", \"source_id\": \"1402365\", \"deadline_at\": \"2026-11-09T13:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-01T23:00:00Z\", \"notice_number\": \"1402365\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1402365\"}",
            "content_hash": "3858642f05c996d7528af283200604fb47deefa34dc1249bb2ac914f6e21d34c",
            "prev_hash": "e5df3c9198fb0a45afc0f7e3512e10061a8d7c99d905e8175a3c6fec378cd6a3",
            "hash": "650e3f03962da9ad8456992d0e824bbc9ea9b2e1bb0423fd1d2a949f635ec643",
            "actor": null,
            "seal": {
                "id": 10,
                "digest": "297505af1d9d820e84b46bcdd40ae11b1ffc912134eeb69a764090ac7f9838b4",
                "file": "https://tenderiq.pl/rejestr/pieczec-10.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-10.txt.ots",
                "bitcoin_block": 974314
            }
        }
    ]
}