{
    "tender_id": 3063979,
    "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\": \"48780000\", \"url\": \"https://www.find-tender.service.gov.uk/Notice/099288-2026\", \"buyer\": \"Derry City and Strabane District Council\", \"title\": \"Wielka Brytania – T26-121CRO Committee Management Software\", \"source\": \"find_a_tender\", \"status\": \"active\", \"cpv_more\": [\"48781000\", \"72212783\", \"48517000\", \"48000000\", \"48900000\"], \"location\": \"UKN0A\", \"source_id\": \"ocds-h6vhtk-078c70\", \"deadline_at\": \"2026-11-20T12:00:00Z\", \"notice_type\": \"Ogłoszenie Find a Tender\", \"published_at\": \"2026-10-21T08:57:46Z\", \"notice_number\": \"099288-2026\"}",
            "content_hash": "fbcb6b0d964cd1fa7fbec2c9d87124b55235d8865bf509ed7453420642389d0b",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "81e1c5e38dcd126efeed2cdc9d0f63587c37a026cecf9dbafd4279112ff84c01",
            "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": "2026-10-24T14:01:13Z",
            "content": "{\"cpv\": \"48780000\", \"url\": \"https://www.find-tender.service.gov.uk/Notice/099288-2026\", \"buyer\": \"Derry City and Strabane District Council\", \"title\": \"Wielka Brytania – Projekt T26-121CRO – Oprogramowanie Zarządzania Komitetem\", \"source\": \"find_a_tender\", \"status\": \"active\", \"cpv_more\": [\"48781000\", \"72212783\", \"48517000\", \"48000000\", \"48900000\"], \"location\": \"UKN0A\", \"source_id\": \"ocds-h6vhtk-078c70\", \"deadline_at\": \"2026-11-20T12:00:00Z\", \"notice_type\": \"Ogłoszenie Find a Tender\", \"published_at\": \"2026-10-21T08:57:46Z\", \"notice_number\": \"099288-2026\"}",
            "content_hash": "1652ca8c79097de2ae049883453bbf00c6503e6333c45faf422a2b1bfa6e92d9",
            "prev_hash": "81e1c5e38dcd126efeed2cdc9d0f63587c37a026cecf9dbafd4279112ff84c01",
            "hash": "7087fc5ab64a764874bb26cb260fafa26642ef27ea2f452761acf97c6292f7dc",
            "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
            }
        }
    ]
}