{
    "tender_id": 3858653,
    "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": "2026-10-29T02:07:00Z",
            "content": "{\"cpv\": \"33140000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/751449-2026\", \"buyer\": \"SZPITAL UNIWERSYTECKI W KRAKOWIE\", \"title\": \"Polska – Materiały medyczne – Dostawa materiałów medycznych.\", \"region\": \"malopolskie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"PL213, POL, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL\", \"source_id\": \"751449-2026\", \"deadline_at\": \"2026-11-05T09:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-29T01:00:00Z\"}",
            "content_hash": "34798050571fcf7d06c617b7ba37d1a658e2353caf0fa16f0d72a48d4c677f92",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "7546277143bfe42298e98a7f05e4637d44ffbe0f697b16ebdfcab4fa9333f23e",
            "actor": null,
            "seal": {
                "id": 6,
                "digest": "e733200881d78faed3c108fa90cea332062fa40f3af23fcfd3f901e311d96e33",
                "file": "https://tenderiq.pl/rejestr/pieczec-6.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-6.txt.ots",
                "bitcoin_block": 973754
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-29T23:29:51Z",
            "content": "{\"cpv\": \"33140000\", \"url\": \"https://ted.europa.eu/pl/notice/-/detail/751449-2026\", \"buyer\": \"SZPITAL UNIWERSYTECKI W KRAKOWIE\", \"title\": \"Polska – Materiały medyczne – Dostawa materiałów medycznych.\", \"region\": \"malopolskie\", \"source\": \"ted\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"PL213, POL, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, PL213, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL, POL\", \"source_id\": \"751449-2026\", \"deadline_at\": \"2026-11-05T09:00:00Z\", \"notice_type\": \"Ogłoszenie TED\", \"published_at\": \"2026-10-29T01:00:00Z\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1377826\"}",
            "content_hash": "f824adc175c588868e24e5afe61eae5e68f5cd95e118191b2c4ba996810f740c",
            "prev_hash": "7546277143bfe42298e98a7f05e4637d44ffbe0f697b16ebdfcab4fa9333f23e",
            "hash": "a654bfbb22556ce9b10799f478fbed553d2864fdfddfbdc8133b24d1dd5677be",
            "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
            }
        }
    ]
}