{
    "tender_id": 4334731,
    "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": "2026-10-31T12:10:20Z",
            "content": "{\"cpv\": \"66510000\", \"url\": \"https://www.przetargi.egospodarka.pl/20051330301_UBEZPIECZENIE-MAJATKU-I-INNYCH-INTERESOW-GMINY-OLECKO_2026_2.html\", \"buyer\": \"GMINA OLECKO\", \"title\": \"UBEZPIECZENIE MAJĄTKU I INNYCH INTERESÓW GMINY OLECKO\", \"region\": \"warminsko-mazurskie\", \"source\": \"egospodarka_przetargi\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Olecko\", \"source_id\": \"20051330301\", \"deadline_at\": \"2026-11-19T22:59:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-30T00:00:00Z\"}",
            "content_hash": "04340629793a61cb93cb66d504a9d456e23b8a95608f64eedf3302af2e190a95",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "2fb02b3aae51b617f628989712a9d1e1e5c6f2b1e1fc570ac0acac93044800dd",
            "actor": null,
            "seal": {
                "id": 8,
                "digest": "b9dfb65eef062a8f7633cee107df2b59fcca72ec5f093c9ceec0396cf65cd90d",
                "file": "https://tenderiq.pl/rejestr/pieczec-8.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-8.txt.ots",
                "bitcoin_block": 974039
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-31T12:45:31Z",
            "content": "{\"cpv\": \"66510000\", \"url\": \"https://www.przetargi.egospodarka.pl/20051330301_UBEZPIECZENIE-MAJATKU-I-INNYCH-INTERESOW-GMINY-OLECKO_2026_2.html\", \"buyer\": \"GMINA OLECKO\", \"title\": \"UBEZPIECZENIE MAJĄTKU I INNYCH INTERESÓW GMINY OLECKO\", \"region\": \"warminsko-mazurskie\", \"source\": \"egospodarka_przetargi\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Olecko\", \"source_id\": \"20051330301\", \"deadline_at\": \"2026-11-19T22:59:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-30T00:00:00Z\", \"procedure_url\": \"https://zamowienia.domaradz.pl/#/offer/14f8e763-efff-433d-8184-a6f0b4511d3c\"}",
            "content_hash": "0507045d08686231926480f8c68dbb22eb829f363686bc600254e1f65dbdd948",
            "prev_hash": "2fb02b3aae51b617f628989712a9d1e1e5c6f2b1e1fc570ac0acac93044800dd",
            "hash": "b56ccd234dc19330dfb0d5068f1acb6eb52fb25cc89c8b921530583e804ba8a9",
            "actor": null,
            "seal": {
                "id": 8,
                "digest": "b9dfb65eef062a8f7633cee107df2b59fcca72ec5f093c9ceec0396cf65cd90d",
                "file": "https://tenderiq.pl/rejestr/pieczec-8.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-8.txt.ots",
                "bitcoin_block": 974039
            }
        }
    ]
}