{
    "tender_id": 1080394,
    "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": "2026-10-24T13:58:39Z",
            "content": "{\"cpv\": \"50730000\", \"url\": \"https://ezakupy.pkpcargo.com/open-preview-auction.html/104951/przetarg-nieograniczony-na-usluge-wykonywania-napraw-wagonow-towarowych-przez-serwis-mobilny\", \"buyer\": \"PKP CARGO S.A. W RESTRUKTURYZACJI\", \"title\": \"Przetarg nieograniczony na usługę wykonywania napraw wagonów towarowych przez serwis mobilny\", \"region\": \"mazowieckie\", \"source\": \"pkpcargo_eb2b\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"MAZOWIECKIE\", \"source_id\": \"104951\", \"deadline_at\": \"2026-10-29T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-06T08:15:00Z\"}",
            "content_hash": "b25506ed5c5310302359854e7e6a098575863ff27a6746a0c5e5584b036b8a78",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "264dc5fc8db092270045d17c962e3ee7ec30a0ac17d810e6b42aed7c17e94ef1",
            "actor": null,
            "seal": {
                "id": 1,
                "digest": "25686b149cfd327de10f8db2827c82e22b0d6a884d716cd11b36328364d6937d",
                "file": "https://tenderiq.pl/rejestr/pieczec-1.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-1.txt.ots",
                "bitcoin_block": 972985
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-27T01:38:56Z",
            "content": "{\"cpv\": \"50730000\", \"url\": \"https://ezakupy.pkpcargo.com/open-preview-auction.html/104951/przetarg-nieograniczony-na-usluge-wykonywania-napraw-wagonow-towarowych-przez-serwis-mobilny\", \"buyer\": \"PKP CARGO S.A. W RESTRUKTURYZACJI\", \"title\": \"Przetarg nieograniczony na usługę wykonywania napraw wagonów towarowych przez serwis mobilny\", \"region\": \"mazowieckie\", \"source\": \"pkpcargo_eb2b\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"MAZOWIECKIE\", \"source_id\": \"104951\", \"deadline_at\": \"2026-11-09T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-06T08:15:00Z\"}",
            "content_hash": "b6c7e3d858c00cecaaf2e70a6dcd8772d4730b236ad8c8448e31dcfd725c277e",
            "prev_hash": "264dc5fc8db092270045d17c962e3ee7ec30a0ac17d810e6b42aed7c17e94ef1",
            "hash": "3fd872acdfb9ec7f89bc3a13847f4fcac41b29705ad13d53b6b1e6659beac062",
            "actor": null,
            "seal": {
                "id": 4,
                "digest": "1a6d1144791ca08d9453bd1c8d38a6c251eb74cb6d377626fde25c11a52ccc7a",
                "file": "https://tenderiq.pl/rejestr/pieczec-4.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-4.txt.ots",
                "bitcoin_block": 973472
            }
        }
    ]
}