{
    "tender_id": 3063926,
    "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\": \"42123400\", \"url\": \"https://www.find-tender.service.gov.uk/Notice/099673-2026\", \"buyer\": \"West Midlands Fire and Rescue Authority\", \"title\": \"Wielka Brytania – BA Compressor Maintenance 2026-2030\", \"source\": \"find_a_tender\", \"status\": \"active\", \"cpv_more\": [\"50800000\"], \"location\": \"UKG\", \"source_id\": \"ocds-h6vhtk-078d49\", \"deadline_at\": \"2026-11-27T17:00:00Z\", \"notice_type\": \"Ogłoszenie Find a Tender\", \"published_at\": \"2026-10-21T15:36:05Z\", \"notice_number\": \"099673-2026\"}",
            "content_hash": "00e4deaf341eb5b261d6d97ca4c5cb01b704625eff81c64823f184ab5b2269a6",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "be64a855904ba91e27a13ee2692f562b977023a6399ee94adc51eb7314bd224e",
            "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": "2026-10-24T14:00:53Z",
            "content": "{\"cpv\": \"42123400\", \"url\": \"https://www.find-tender.service.gov.uk/Notice/099673-2026\", \"buyer\": \"West Midlands Fire and Rescue Authority\", \"title\": \"Wielka Brytania – Konserwacja Pompy BA 2026-2030\", \"source\": \"find_a_tender\", \"status\": \"active\", \"cpv_more\": [\"50800000\"], \"location\": \"UKG\", \"source_id\": \"ocds-h6vhtk-078d49\", \"deadline_at\": \"2026-11-27T17:00:00Z\", \"notice_type\": \"Ogłoszenie Find a Tender\", \"published_at\": \"2026-10-21T15:36:05Z\", \"notice_number\": \"099673-2026\"}",
            "content_hash": "4ce13ef0d1c4d42e700e6d92b205e744a2cad7f867b62e90f73c59d343145e0c",
            "prev_hash": "be64a855904ba91e27a13ee2692f562b977023a6399ee94adc51eb7314bd224e",
            "hash": "223cdf5a84a3a622fbca1a1be1be457c93a44c636fa0d07e2104cc26e0814382",
            "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
            }
        }
    ]
}