{
    "tender_id": 3064684,
    "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\": \"90913000\", \"url\": \"https://www.find-tender.service.gov.uk/Notice/094342-2026\", \"buyer\": \"Dwr Cymru Cyfyngedig\", \"title\": \"Wielka Brytania – DCWW2115 Service Reservoir Cleaning, Maintenance and Refurbishment CoP\", \"source\": \"find_a_tender\", \"status\": \"active\", \"cpv_more\": [\"90913100\", \"50514100\", \"50800000\"], \"source_id\": \"ocds-h6vhtk-0781d8\", \"deadline_at\": \"2026-11-02T23:59:00Z\", \"notice_type\": \"Ogłoszenie Find a Tender\", \"published_at\": \"2026-10-06T13:55:55Z\", \"notice_number\": \"094342-2026\"}",
            "content_hash": "02ad12634607e0c70b810a3900b74227aba4aacd35b3f587c80e835f994f5e4a",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "47243ff790754b6a3c195bf93310b0be4541aa87f1c58dd6ea185d039a9facc3",
            "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": "2026-10-24T14:05:42Z",
            "content": "{\"cpv\": \"90913000\", \"url\": \"https://www.find-tender.service.gov.uk/Notice/094342-2026\", \"buyer\": \"Dwr Cymru Cyfyngedig\", \"title\": \"Wielka Brytania – DCWW2115 Usługa Czyszczenia, Konserwacji i Remontu Zbiorników Wodnych – SIW\", \"source\": \"find_a_tender\", \"status\": \"active\", \"cpv_more\": [\"90913100\", \"50514100\", \"50800000\"], \"source_id\": \"ocds-h6vhtk-0781d8\", \"deadline_at\": \"2026-11-02T23:59:00Z\", \"notice_type\": \"Ogłoszenie Find a Tender\", \"published_at\": \"2026-10-06T13:55:55Z\", \"notice_number\": \"094342-2026\"}",
            "content_hash": "a6e57f302894b460f48f0d06ef36c7017e5747161cde2712f7486e8f9a5e51c3",
            "prev_hash": "47243ff790754b6a3c195bf93310b0be4541aa87f1c58dd6ea185d039a9facc3",
            "hash": "12433318410b7f074e35a9044d4cdf4b8f233752e121a3be1c58f109ae506ba1",
            "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
            }
        }
    ]
}