{
    "tender_id": 3064446,
    "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\": \"48000000\", \"url\": \"https://www.find-tender.service.gov.uk/Notice/096206-2026\", \"buyer\": \"City of Sunderland College\", \"title\": \"Wielka Brytania – E Portfolio System (Provision of)\", \"source\": \"find_a_tender\", \"status\": \"active\", \"cpv_more\": [\"48100000\", \"80300000\", \"80420000\"], \"source_id\": \"ocds-h6vhtk-0785cc\", \"deadline_at\": \"2026-11-06T12:00:00Z\", \"notice_type\": \"Ogłoszenie Find a Tender\", \"published_at\": \"2026-10-12T14:49:31Z\", \"notice_number\": \"096206-2026\"}",
            "content_hash": "981e4e169af32531159c5f1531117746a13adf10d6d04b15d83ca988d1b144da",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "8964904ba1ee2f47ef314952407f775384805a3b4e8df5b7809671777fd53f73",
            "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": "2026-10-24T14:04:15Z",
            "content": "{\"cpv\": \"48000000\", \"url\": \"https://www.find-tender.service.gov.uk/Notice/096206-2026\", \"buyer\": \"City of Sunderland College\", \"title\": \"Wielka Brytania – E Portfolio System (Dostawa)\", \"source\": \"find_a_tender\", \"status\": \"active\", \"cpv_more\": [\"48100000\", \"80300000\", \"80420000\"], \"source_id\": \"ocds-h6vhtk-0785cc\", \"deadline_at\": \"2026-11-06T12:00:00Z\", \"notice_type\": \"Ogłoszenie Find a Tender\", \"published_at\": \"2026-10-12T14:49:31Z\", \"notice_number\": \"096206-2026\"}",
            "content_hash": "702a5393b27536ac718aa5c69094efcce9c65b61359ce26feff19c27a34f5b0b",
            "prev_hash": "8964904ba1ee2f47ef314952407f775384805a3b4e8df5b7809671777fd53f73",
            "hash": "fbf1b9aa9cf89ac6e941cb7e492eb84df8de77c87ced995eb996939907ce361d",
            "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
            }
        }
    ]
}