{
    "tender_id": 5357252,
    "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": "2026-11-05T05:49:51Z",
            "content": "{\"cpv\": \"64110000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3873865/swiadczenie-uslug-pocztowych-w-latach-2027-2029\", \"buyer\": \"Miejski Zarząd Dróg w Opolu\", \"title\": \"Świadczenie usług pocztowych w latach 2027-2029\", \"region\": \"opolskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3873865\", \"deadline_at\": \"2026-11-13T08:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-05T05:49:51Z\"}",
            "content_hash": "5eb4bc700ec63fd5b4fb7770ea3470d09c3588591ab802e5bf2f2266768aa4b1",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "b267b45399a03e64d74aac6b15bfa85c54fafafc6aadd8e6a4fe0efa20b8d208",
            "actor": null,
            "seal": {
                "id": 13,
                "digest": "88eaa47ed54f178cca07f94ec9f0c5d48c105c008cf249a9e53ac4ca63161903",
                "file": "https://tenderiq.pl/rejestr/pieczec-13.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-13.txt.ots",
                "bitcoin_block": 974729
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-05T06:45:54Z",
            "content": "{\"cpv\": \"64110000\", \"url\": \"https://oneplace.marketplanet.pl/zapytania-ofertowe-przetargi/-/rfp/view/3873865/swiadczenie-uslug-pocztowych-w-latach-2027-2029\", \"buyer\": \"Miejski Zarząd Dróg w Opolu\", \"title\": \"Świadczenie usług pocztowych w latach 2027-2029\", \"region\": \"opolskie\", \"source\": \"oneplace_marketplanet\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"3873865\", \"deadline_at\": \"2026-11-13T08:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-05T05:49:51Z\", \"procedure_url\": \"https://umopole.logintrade.net/zapytania_email,244522,3e122758a4799103e46a6e36a8dcb5ed.html\"}",
            "content_hash": "3fce107dc65b671f77ccab6d7fdc0d6e52fc5b720d89a2c39e9ff3bc134f1717",
            "prev_hash": "b267b45399a03e64d74aac6b15bfa85c54fafafc6aadd8e6a4fe0efa20b8d208",
            "hash": "aecb2e74b5a218722b58058fc3beaf9d9b93fefd9393688de68f3a301033cd0b",
            "actor": null,
            "seal": {
                "id": 13,
                "digest": "88eaa47ed54f178cca07f94ec9f0c5d48c105c008cf249a9e53ac4ca63161903",
                "file": "https://tenderiq.pl/rejestr/pieczec-13.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-13.txt.ots",
                "bitcoin_block": 974729
            }
        }
    ]
}