{
    "tender_id": 4095571,
    "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": "2026-10-30T06:14:23Z",
            "content": "{\"cpv\": \"45000000\", \"url\": \"https://www.przetargi.egospodarka.pl/20051008301_Budowa-zaplecza-szatniowo-sanitarnego-przy-kortach-tenisowych-w-Milanowku_2026_2.html\", \"buyer\": \"Gmina Milanówek\", \"title\": \"\\\"Budowa zaplecza szatniowo - sanitarnego przy kortach tenisowych w Milanówku.\\\"\", \"region\": \"mazowieckie\", \"source\": \"egospodarka_przetargi\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Milanówek\", \"source_id\": \"20051008301\", \"deadline_at\": \"2026-11-13T22:59:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T00:00:00Z\"}",
            "content_hash": "3ee989531d9d4c41464361a9e6d1a674ecddd89159487e0ef9724c96b05bc3d9",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "99a8a06d059d517150705143b8b30bda7c1e0a3f5855431abbc2d2f1df25dc0b",
            "actor": null,
            "seal": null
        },
        {
            "version": 2,
            "recorded_at": "2026-10-30T06:45:39Z",
            "content": "{\"cpv\": \"45000000\", \"url\": \"https://www.przetargi.egospodarka.pl/20051008301_Budowa-zaplecza-szatniowo-sanitarnego-przy-kortach-tenisowych-w-Milanowku_2026_2.html\", \"buyer\": \"Gmina Milanówek\", \"title\": \"\\\"Budowa zaplecza szatniowo - sanitarnego przy kortach tenisowych w Milanówku.\\\"\", \"region\": \"mazowieckie\", \"source\": \"egospodarka_przetargi\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Milanówek\", \"source_id\": \"20051008301\", \"deadline_at\": \"2026-11-13T22:59:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-29T00:00:00Z\", \"procedure_url\": \"https://milanowek.eb2b.com.pl/open-preview-auction.html/536310/budowa-zaplecza-szatniowo-sanitarnego-przy-kortach-tenisowych-w-milanowku-1\"}",
            "content_hash": "f529f209afc7bc89b5fe36c378d58e81cdf899c9b20941f6ed7cecbe4cc3eee4",
            "prev_hash": "99a8a06d059d517150705143b8b30bda7c1e0a3f5855431abbc2d2f1df25dc0b",
            "hash": "6bc09d12c141712928475eedf9739e991ee45bb79f2d8e4c4be0b388c0fc96e4",
            "actor": null,
            "seal": null
        }
    ]
}