{
    "tender_id": 5248160,
    "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": "2026-11-04T20:28:26Z",
            "content": "{\"cpv\": \"39522530\", \"url\": \"https://platformazakupowa.pl/transakcja/1404111\", \"buyer\": \"Komenda Wojewódzka Policji w Łodzi\", \"title\": \"Zakup łóżek polowych.\", \"region\": \"zachodniopomorskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1404111\", \"deadline_at\": \"2026-11-09T12:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-04T13:40:00Z\", \"notice_number\": \"1404111\"}",
            "content_hash": "d85f14113d079864849594ee70ff761b1b99b3fc6bf65abcd85ec0a3b2b6bec4",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "4810e26157969bbaa858c155cbb0666f7f4fed6c2eccbe5d2ee2c5df7e0ab619",
            "actor": null,
            "seal": {
                "id": 12,
                "digest": "e23c0f5a7e440e937f514487a150dc1be40887f39a941304e364e5e94a4b77fc",
                "file": "https://tenderiq.pl/rejestr/pieczec-12.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-12.txt.ots",
                "bitcoin_block": 974604
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-04T20:45:27Z",
            "content": "{\"cpv\": \"39522530\", \"url\": \"https://platformazakupowa.pl/transakcja/1404111\", \"buyer\": \"Komenda Wojewódzka Policji w Łodzi\", \"title\": \"Zakup łóżek polowych.\", \"region\": \"zachodniopomorskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1404111\", \"deadline_at\": \"2026-11-09T12:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-04T13:40:00Z\", \"notice_number\": \"1404111\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1404111\"}",
            "content_hash": "cc3c8e604ea42a548a68eec8c09f77ba229ae84d98205051b2558159b2877d8e",
            "prev_hash": "4810e26157969bbaa858c155cbb0666f7f4fed6c2eccbe5d2ee2c5df7e0ab619",
            "hash": "71e85ec5f092bdb4543319c13db25695ed92bb957afd1f50da9f59f35f21caa2",
            "actor": null,
            "seal": {
                "id": 12,
                "digest": "e23c0f5a7e440e937f514487a150dc1be40887f39a941304e364e5e94a4b77fc",
                "file": "https://tenderiq.pl/rejestr/pieczec-12.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-12.txt.ots",
                "bitcoin_block": 974604
            }
        }
    ]
}