{
    "tender_id": 5257155,
    "check": {
        "ok": true,
        "versions": 3,
        "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": "2026-11-04T21:12:59Z",
            "content": "{\"cpv\": \"42900000\", \"url\": \"https://dyckerhoff.logintrade.net/portal,szczegolyZapytaniaOfertowe,d50f87a905881aeebf5b1927cdac3b64.html\", \"buyer\": \"Dyckerhoff Polska Sp. z o.o.\", \"title\": \"Dostawa kontenerowej stacji transformatorowej dla zakładu produkcji kruszyw na terenie ZG Kowala w Dyckerhoff Polska sp. z o.o\", \"region\": \"swietokrzyskie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"świętokrzyskie\", \"source_id\": \"dyckerhoff-d50f87a905881aeebf5b1927cdac3b64\", \"deadline_at\": \"2026-11-17T11:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-04T07:02:00Z\"}",
            "content_hash": "506ec80a96ffaa36974f7a0fe4a0990a15aeb4edc5fd25ebc00b5c702a72091e",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "4ea5dc5bb9eb8d8a8f3ff2582518267b798173ae6f284985f2efb8e61daf68a1",
            "actor": null,
            "seal": {
                "id": 12,
                "digest": "e23c0f5a7e440e937f514487a150dc1be40887f39a941304e364e5e94a4b77fc",
                "file": "https://tenderiq.pl/rejestr/pieczec-12.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-12.txt.ots",
                "bitcoin_block": 974604
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-11-05T00:17:56Z",
            "content": "{\"cpv\": \"42900000\", \"url\": \"https://dyckerhoff.logintrade.net/portal,szczegolyZapytaniaOfertowe,d50f87a905881aeebf5b1927cdac3b64.html\", \"buyer\": \"Dyckerhoff Polska Sp. z o.o\", \"title\": \"Dostawa kontenerowej stacji transformatorowej dla zakładu produkcji kruszyw na terenie ZG Kowala w Dyckerhoff Polska sp. z o.o\", \"region\": \"swietokrzyskie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"dyckerhoff-d50f87a905881aeebf5b1927cdac3b64\", \"deadline_at\": \"2026-11-17T11:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-04T10:48:00Z\"}",
            "content_hash": "b47b128d642f0b96034c3ddb547b8f858256afe90711cc2dfb73865ac1a836da",
            "prev_hash": "4ea5dc5bb9eb8d8a8f3ff2582518267b798173ae6f284985f2efb8e61daf68a1",
            "hash": "24430912e1484ed0244da4619928eef5300e134247c54a7fca06c109db5d332b",
            "actor": null,
            "seal": null
        },
        {
            "version": 3,
            "recorded_at": "2026-11-05T06:45:54Z",
            "content": "{\"cpv\": \"42900000\", \"url\": \"https://dyckerhoff.logintrade.net/portal,szczegolyZapytaniaOfertowe,d50f87a905881aeebf5b1927cdac3b64.html\", \"buyer\": \"Dyckerhoff Polska Sp. z o.o\", \"title\": \"Dostawa kontenerowej stacji transformatorowej dla zakładu produkcji kruszyw na terenie ZG Kowala w Dyckerhoff Polska sp. z o.o\", \"region\": \"swietokrzyskie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"dyckerhoff-d50f87a905881aeebf5b1927cdac3b64\", \"deadline_at\": \"2026-11-17T11:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-04T10:48:00Z\", \"procedure_url\": \"https://dyckerhoff.logintrade.net/portal,szczegolyZapytaniaOfertowe,d50f87a905881aeebf5b1927cdac3b64.html\"}",
            "content_hash": "21b031e69d879993a7c299fa64ac7dd125645dc759b7a49d8f0f171a74106982",
            "prev_hash": "24430912e1484ed0244da4619928eef5300e134247c54a7fca06c109db5d332b",
            "hash": "34dcdfc02cb53ebfdc9545347b924bf926c5f3bd5302bdd55d18c7fca1e40fc9",
            "actor": null,
            "seal": null
        }
    ]
}