{
    "tender_id": 3064152,
    "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\": \"90713100\", \"url\": \"https://www.find-tender.service.gov.uk/Notice/098176-2026\", \"buyer\": \"South Norfolk Council\", \"title\": \"Wielka Brytania – Legionella Consultancy Services\", \"source\": \"find_a_tender\", \"status\": \"active\", \"cpv_more\": [\"90733000\"], \"location\": \"UKH17\", \"source_id\": \"ocds-h6vhtk-078a15\", \"deadline_at\": \"2026-11-16T17:00:00Z\", \"notice_type\": \"Ogłoszenie Find a Tender\", \"published_at\": \"2026-10-16T15:35:14Z\", \"notice_number\": \"098176-2026\"}",
            "content_hash": "0b9de1136f3ba726aa305b5e7e095430c2c9f2fab8e0c579ce6002543030b332",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "9aec3c25d9195064344cfbbd063f979e1447e7f20dbb16eace8a6de6a6e96123",
            "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": "2026-10-24T14:02:17Z",
            "content": "{\"cpv\": \"90713100\", \"url\": \"https://www.find-tender.service.gov.uk/Notice/098176-2026\", \"buyer\": \"South Norfolk Council\", \"title\": \"Wielka Brytania – Doradztwo w Sprawach Legionelli\", \"source\": \"find_a_tender\", \"status\": \"active\", \"cpv_more\": [\"90733000\"], \"location\": \"UKH17\", \"source_id\": \"ocds-h6vhtk-078a15\", \"deadline_at\": \"2026-11-16T17:00:00Z\", \"notice_type\": \"Ogłoszenie Find a Tender\", \"published_at\": \"2026-10-16T15:35:14Z\", \"notice_number\": \"098176-2026\"}",
            "content_hash": "5ffe0ce64a56865a11259fceb1e836eb02730b764579cfba80e8014136c1c8d9",
            "prev_hash": "9aec3c25d9195064344cfbbd063f979e1447e7f20dbb16eace8a6de6a6e96123",
            "hash": "c47bffd386697137d7eef1c2c042d69ce9f62baa4e66a74cab5be533cc70764e",
            "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
            }
        }
    ]
}