{
    "tender_id": 6316715,
    "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": "2026-11-10T10:51:48Z",
            "content": "{\"cpv\": \"39130000\", \"url\": \"https://platformazakupowa.pl/transakcja/1407215\", \"buyer\": \"Komenda Wojewódzka PSP w Katowicach\", \"title\": \"Zakup mebli kuchennych\", \"region\": \"slaskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1407215\", \"deadline_at\": \"2026-11-13T12:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-10T09:45:00Z\", \"notice_number\": \"1407215\"}",
            "content_hash": "7327348c5ab0e80b903eb155779c3cf91b8264fd81564f90f405e42f2af9101a",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "2f625ef03aed8bd70f5d0db9a6e6406e05657ed578af46d34f2312857202a674",
            "actor": null,
            "seal": {
                "id": 18,
                "digest": "adeec00ed6b673509a2a075e675623159dccab6a142d1ac62c122cfe1d16794c",
                "file": "https://tenderiq.pl/rejestr/pieczec-18.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-18.txt.ots",
                "bitcoin_block": 975359
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-10T13:45:42Z",
            "content": "{\"cpv\": \"39130000\", \"url\": \"https://platformazakupowa.pl/transakcja/1407215\", \"buyer\": \"Komenda Wojewódzka PSP w Katowicach\", \"title\": \"Zakup mebli kuchennych\", \"region\": \"slaskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1407215\", \"deadline_at\": \"2026-11-13T12:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-10T09:45:00Z\", \"notice_number\": \"1407215\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1407215\"}",
            "content_hash": "7903e89b69f6b6713ba6f6f27f2acd420e6dcdb328f3c5bf037269dab5b40f68",
            "prev_hash": "2f625ef03aed8bd70f5d0db9a6e6406e05657ed578af46d34f2312857202a674",
            "hash": "b591135541f0a43dc0eb8cd7d158d95bdd33a9f1ae5876647f81c7d7d2e124ca",
            "actor": null,
            "seal": {
                "id": 18,
                "digest": "adeec00ed6b673509a2a075e675623159dccab6a142d1ac62c122cfe1d16794c",
                "file": "https://tenderiq.pl/rejestr/pieczec-18.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-18.txt.ots",
                "bitcoin_block": 975359
            }
        }
    ]
}