{
    "tender_id": 4971652,
    "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": "2026-11-03T10:08:03Z",
            "content": "{\"cpv\": \"79100000\", \"url\": \"https://www.przetargi.egospodarka.pl/20051471601_Swiadczenie-stalej-obslugi-prawnej-Urzedu-Miasta-Kolobrzeg_2026_2.html\", \"buyer\": \"Gmina Miasto Kołobrzeg\", \"title\": \"Świadczenie stałej obsługi prawnej Urzędu Miasta Kołobrzeg\", \"region\": \"zachodniopomorskie\", \"source\": \"egospodarka_przetargi\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Kołobrzeg\", \"source_id\": \"20051471601\", \"deadline_at\": \"2026-11-10T22:59:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-02T00:00:00Z\"}",
            "content_hash": "5f152bd70ea18bd35ab615de15d45ebbbb64baaac0c1162f187aed475ed5f425",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "201ab3d397e44b4881b1a16a899c1b3ae71d2be60431103b7efadf8c9fcff54f",
            "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
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-03T10:45:33Z",
            "content": "{\"cpv\": \"79100000\", \"url\": \"https://www.przetargi.egospodarka.pl/20051471601_Swiadczenie-stalej-obslugi-prawnej-Urzedu-Miasta-Kolobrzeg_2026_2.html\", \"buyer\": \"Gmina Miasto Kołobrzeg\", \"title\": \"Świadczenie stałej obsługi prawnej Urzędu Miasta Kołobrzeg\", \"region\": \"zachodniopomorskie\", \"source\": \"egospodarka_przetargi\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Kołobrzeg\", \"source_id\": \"20051471601\", \"deadline_at\": \"2026-11-10T22:59:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-02T00:00:00Z\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1387096\"}",
            "content_hash": "e5c888586e01938788992e297dad802183e8ee7f9a148dc654bf431333849bac",
            "prev_hash": "201ab3d397e44b4881b1a16a899c1b3ae71d2be60431103b7efadf8c9fcff54f",
            "hash": "a37b9bc3cd58fd9b1837ae6e6b2bd438abbe4dcf3d581d32b8e40d027b969837",
            "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
            }
        }
    ]
}