{
    "tender_id": 7062797,
    "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": "2026-11-13T09:41:01Z",
            "content": "{\"url\": \"https://platformazakupowa.pl/transakcja/1408731\", \"buyer\": \"Komenda Wojewódzka PSP w Katowicach\", \"title\": \"Zakup rękawic polarowych\", \"region\": \"slaskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1408731\", \"deadline_at\": \"2026-11-17T13:30:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-13T08:46:00Z\", \"notice_number\": \"1408731\"}",
            "content_hash": "507e75f76b6eb8949b3c8b89ea0bb65a433b2c8f57b3758a370bcc4a7e610ed4",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "4ec9fb01270477b38b7474c189533ebbc3825c5bada7ea47b55fb2f18a68ee6c",
            "actor": null,
            "seal": {
                "id": 21,
                "digest": "9f5cc628e20cec4e7a4adf4979e6b8d5416f11dcd193f37905493253afb6d07f",
                "file": "https://tenderiq.pl/rejestr/pieczec-21.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-21.txt.ots",
                "bitcoin_block": 975729
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-13T15:46:01Z",
            "content": "{\"url\": \"https://platformazakupowa.pl/transakcja/1408731\", \"buyer\": \"Komenda Wojewódzka PSP w Katowicach\", \"title\": \"Zakup rękawic polarowych\", \"region\": \"slaskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1408731\", \"deadline_at\": \"2026-11-17T13:30:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-13T08:46:00Z\", \"notice_number\": \"1408731\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1408731\"}",
            "content_hash": "59261a87eebdfcc7cc78afb771efea3dab6705043ba428b1690efa42794cd9d7",
            "prev_hash": "4ec9fb01270477b38b7474c189533ebbc3825c5bada7ea47b55fb2f18a68ee6c",
            "hash": "567764c63f8da8285f25ebee3b68609403d839643006fe65d7a65d9e27bee560",
            "actor": null,
            "seal": {
                "id": 21,
                "digest": "9f5cc628e20cec4e7a4adf4979e6b8d5416f11dcd193f37905493253afb6d07f",
                "file": "https://tenderiq.pl/rejestr/pieczec-21.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-21.txt.ots",
                "bitcoin_block": 975729
            }
        }
    ]
}