{
    "tender_id": 5018428,
    "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": "2026-11-03T17:19:41Z",
            "content": "{\"url\": \"https://platformazakupowa.pl/transakcja/1403399\", \"buyer\": \"Komenda Stołeczna Policji\", \"title\": \"Usługa serwisu zespołu urządzeń zasilania awaryjnego\", \"region\": \"zachodniopomorskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1403399\", \"deadline_at\": \"2026-11-10T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-03T16:32:00Z\", \"notice_number\": \"1403399\"}",
            "content_hash": "662a5e8894604800faaacac28a93519ed584050fbee5054686d020a8c9465fd6",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "9de71c3072f5a20c875d9a6d9f7523088fc7758e6b9003d2bf36bf1ded75f261",
            "actor": null,
            "seal": {
                "id": 11,
                "digest": "e9a17a70070a65f95be452321715a138cbb650567f41e2bae0faa2ffd562bbbd",
                "file": "https://tenderiq.pl/rejestr/pieczec-11.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-11.txt.ots",
                "bitcoin_block": 974456
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-03T21:45:58Z",
            "content": "{\"url\": \"https://platformazakupowa.pl/transakcja/1403399\", \"buyer\": \"Komenda Stołeczna Policji\", \"title\": \"Usługa serwisu zespołu urządzeń zasilania awaryjnego\", \"region\": \"zachodniopomorskie\", \"source\": \"platformazakupowa\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"Polska\", \"source_id\": \"1403399\", \"deadline_at\": \"2026-11-10T08:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-11-03T16:32:00Z\", \"notice_number\": \"1403399\", \"procedure_url\": \"https://platformazakupowa.pl/transakcja/1403399\"}",
            "content_hash": "69d8cb45f2a6d90f39b0a7b5ded6331989aecf10b0a6e0da003e98c202490099",
            "prev_hash": "9de71c3072f5a20c875d9a6d9f7523088fc7758e6b9003d2bf36bf1ded75f261",
            "hash": "24927a807257894b0bcff14dd62534953cbacdfb8450fc5d15810523916d7019",
            "actor": null,
            "seal": {
                "id": 11,
                "digest": "e9a17a70070a65f95be452321715a138cbb650567f41e2bae0faa2ffd562bbbd",
                "file": "https://tenderiq.pl/rejestr/pieczec-11.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-11.txt.ots",
                "bitcoin_block": 974456
            }
        }
    ]
}