{
    "tender_id": 4813178,
    "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": "2026-11-02T19:24:57Z",
            "content": "{\"url\": \"https://platformazakupowa.pl/transakcja/1402457\", \"buyer\": \"MASTER - Odpady i Energia Sp. z o.o.\", \"title\": \"WUOP/10/26/0014 Wykonanie nowych połączeń światłowodowych\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1402457\", \"deadline_at\": \"2026-11-09T09:05:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-02T13:48:00Z\", \"notice_number\": \"1402457\"}",
            "content_hash": "5830dd0a4d09b9c47c0cae12fcddbee3607233d20e638e859adc774605fd66d5",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "e1d4f938321b208f35644efad097c45e6c3868d49c99adecec8bea20eb94b280",
            "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": "2026-11-02T20:45:35Z",
            "content": "{\"url\": \"https://platformazakupowa.pl/transakcja/1402457\", \"buyer\": \"MASTER - Odpady i Energia Sp. z o.o.\", \"title\": \"WUOP/10/26/0014 Wykonanie nowych połączeń światłowodowych\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1402457\", \"deadline_at\": \"2026-11-09T09:05:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-02T13:48:00Z\", \"notice_number\": \"1402457\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1402457\"}",
            "content_hash": "7d2a66db3f2e3f941bbef5d5f089d74522a50bbf5a172e73bab07f3bbc6d02f1",
            "prev_hash": "e1d4f938321b208f35644efad097c45e6c3868d49c99adecec8bea20eb94b280",
            "hash": "9a41215f55c6a33470e5410691825313eb9e45ea69bcbc118d50faf4a71caf67",
            "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
            }
        }
    ]
}