{
    "tender_id": 4754154,
    "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": "2026-11-02T09:54:56Z",
            "content": "{\"cpv\": \"42514310\", \"url\": \"https://pkpintercity.eb2b.com.pl/open-preview-auction.html/446044/wklad-filtra-1\", \"buyer\": \"PKP INTERCITY S.A.\", \"title\": \"Wkład filtra.\", \"source\": \"pkpintercity_eb2b\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"446044\", \"deadline_at\": \"2026-11-05T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-02T08:00:00Z\"}",
            "content_hash": "fdc5c15ae9769e4ab6b7f874327755a6a1f3330b78c8e59ca88f44d756153687",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "3530216edaa50219608cd2989f2cba4c00158fee8fb849d3bb8577c96e95e199",
            "actor": null,
            "seal": {
                "id": 10,
                "digest": "297505af1d9d820e84b46bcdd40ae11b1ffc912134eeb69a764090ac7f9838b4",
                "file": "https://tenderiq.pl/rejestr/pieczec-10.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-10.txt.ots",
                "bitcoin_block": 974314
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-03T02:45:36Z",
            "content": "{\"cpv\": \"42514310\", \"url\": \"https://pkpintercity.eb2b.com.pl/open-preview-auction.html/446044/wklad-filtra-1\", \"buyer\": \"PKP INTERCITY S.A.\", \"title\": \"Wkład filtra.\", \"source\": \"pkpintercity_eb2b\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"446044\", \"deadline_at\": \"2026-11-05T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-02T08:00:00Z\", \"procedure_url\": \"https://pkpintercity.eb2b.com.pl/open-preview-auction.html/446044/wklad-filtra-1\"}",
            "content_hash": "f9de53c6a4647f015e6925eef8e6fdb5c29299bd8d5d3675d9322d07e84d9621",
            "prev_hash": "3530216edaa50219608cd2989f2cba4c00158fee8fb849d3bb8577c96e95e199",
            "hash": "71c2c2d28ef005f9116f33b3a12df5a3c7b46e397b492158cd768746adc06211",
            "actor": null,
            "seal": {
                "id": 11,
                "digest": "e9a17a70070a65f95be452321715a138cbb650567f41e2bae0faa2ffd562bbbd",
                "file": "https://tenderiq.pl/rejestr/pieczec-11.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-11.txt.ots",
                "bitcoin_block": 974456
            }
        }
    ]
}