{
    "tender_id": 3063795,
    "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\": \"79998000\", \"url\": \"https://www.find-tender.service.gov.uk/Notice/100507-2026\", \"buyer\": \"NHS Blood and Transplant\", \"title\": \"Wielka Brytania – Executive Team development and coaching\", \"source\": \"find_a_tender\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"ocds-h6vhtk-0783fa\", \"deadline_at\": \"2026-11-17T12:00:00Z\", \"notice_type\": \"Ogłoszenie Find a Tender\", \"published_at\": \"2026-10-23T12:47:44Z\", \"notice_number\": \"100507-2026\"}",
            "content_hash": "2e0279c9685100428735bf060e027cb9da18e94c37cca8d7893aab96906919ef",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "4ad4787bb3668b7b8190164ca745b4c1bebc36de4cdaba015ca641c7b5840909",
            "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": "2026-10-24T14:00:16Z",
            "content": "{\"cpv\": \"79998000\", \"url\": \"https://www.find-tender.service.gov.uk/Notice/100507-2026\", \"buyer\": \"NHS Blood and Transplant\", \"title\": \"Wielka Brytania – Rozwój i Szkolenie Zespołu Zarządzającego\", \"source\": \"find_a_tender\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"ocds-h6vhtk-0783fa\", \"deadline_at\": \"2026-11-17T12:00:00Z\", \"notice_type\": \"Ogłoszenie Find a Tender\", \"published_at\": \"2026-10-23T12:47:44Z\", \"notice_number\": \"100507-2026\"}",
            "content_hash": "98a9bbfd9e658010e9f47e38e40425143b2931c1c238138f5b81fa8416d736d3",
            "prev_hash": "4ad4787bb3668b7b8190164ca745b4c1bebc36de4cdaba015ca641c7b5840909",
            "hash": "6fe62db940abb916a2688046e68193597b8a44a1d0b166c9f6635169ec4891f4",
            "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
            }
        }
    ]
}