{
    "tender_id": 4139746,
    "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": "2026-10-30T13:51:40Z",
            "content": "{\"cpv\": \"42413200\", \"url\": \"https://platforma.eb2b.com.pl/open-preview-auction.html/536448/zakup-urzadzenia-podnosnik-6-cio-kolumnowy\", \"buyer\": \"MIEJSKIE PRZEDSIĘBIORSTWO KOMUNIKACYJNE SPÓŁKA AKCYJNA W KRAKOWIE\", \"title\": \"Zakup urządzenia - podnośnik 6-cio kolumnowy\", \"region\": \"malopolskie\", \"source\": \"eb2b_public\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"536448\", \"deadline_at\": \"2026-11-09T11:30:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-30T12:20:00Z\"}",
            "content_hash": "99354684b6dbc00261bbb8baaacd0b9d08cbfb77ecd70d66d4bb28efecb9361d",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "c1013e574aeab13e1117dca582ec5bfb530583648def5a0d4fe8fac50c2a7874",
            "actor": null,
            "seal": {
                "id": 7,
                "digest": "a9f75e7ec6726860fada5c5807cac164b76cf44582f14a01cd7b4a36f579f813",
                "file": "https://tenderiq.pl/rejestr/pieczec-7.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-7.txt.ots",
                "bitcoin_block": 973897
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-30T14:45:37Z",
            "content": "{\"cpv\": \"42413200\", \"url\": \"https://platforma.eb2b.com.pl/open-preview-auction.html/536448/zakup-urzadzenia-podnosnik-6-cio-kolumnowy\", \"buyer\": \"MIEJSKIE PRZEDSIĘBIORSTWO KOMUNIKACYJNE SPÓŁKA AKCYJNA W KRAKOWIE\", \"title\": \"Zakup urządzenia - podnośnik 6-cio kolumnowy\", \"region\": \"malopolskie\", \"source\": \"eb2b_public\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"536448\", \"deadline_at\": \"2026-11-09T11:30:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-10-30T12:20:00Z\", \"procedure_url\": \"https://mpk-krakow.eb2b.com.pl/open-preview-auction.html/536448/zakup-urzadzenia-podnosnik-6-cio-kolumnowy\"}",
            "content_hash": "ed309a9eb60a17cd30f7f73dad9d97666a215748b1a2b6d88e35aeacd7b7a1d8",
            "prev_hash": "c1013e574aeab13e1117dca582ec5bfb530583648def5a0d4fe8fac50c2a7874",
            "hash": "7d21729e179ee38bd5961be6834cdb3f8e71871e9edc756f71702aa2fc09fd1d",
            "actor": null,
            "seal": {
                "id": 7,
                "digest": "a9f75e7ec6726860fada5c5807cac164b76cf44582f14a01cd7b4a36f579f813",
                "file": "https://tenderiq.pl/rejestr/pieczec-7.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-7.txt.ots",
                "bitcoin_block": 973897
            }
        }
    ]
}