{
    "tender_id": 5048313,
    "check": {
        "ok": true,
        "versions": 4,
        "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": "2026-11-03T20:48:35Z",
            "content": "{\"cpv\": \"44165100\", \"url\": \"https://cognor.logintrade.net/portal,szczegolyZapytaniaOfertowe,29a8df1992316c402fa7866edac809ea.html\", \"buyer\": \"Cognor SA oddział Ferrostal Łabędy w Gliwicach\", \"title\": \"194357 / FE / Hydraulika: WĘŻE METALOWE DLA COGNOR GLIWICE\", \"region\": \"slaskie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"śląskie\", \"source_id\": \"cognor-29a8df1992316c402fa7866edac809ea\", \"deadline_at\": \"2026-11-09T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-03T10:58:00Z\"}",
            "content_hash": "16246bf7bf8fe3d99bf6db7c5189205619091c5e3e4fd69bcbb83d642dd9e422",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "2fd56f150641bb18b769e56751f0e8526f7df818f7264ef5ce0fc68ba83282b8",
            "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": "2026-11-04T00:37:48Z",
            "content": "{\"cpv\": \"44165100\", \"url\": \"https://cognor.logintrade.net/portal,szczegolyZapytaniaOfertowe,29a8df1992316c402fa7866edac809ea.html\", \"buyer\": \"Cognor SA oddział Ferrostal Łabędy w Gliwicach\", \"title\": \"194357 / FE / Hydraulika: WĘŻE METALOWE DLA COGNOR GLIWICE\", \"region\": \"slaskie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"cognor-29a8df1992316c402fa7866edac809ea\", \"deadline_at\": \"2026-11-09T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-03T14:39:00Z\"}",
            "content_hash": "e98235da865348749bdaf233ac679ea95571c9d2ad8dccf7b1a3873254bd9a51",
            "prev_hash": "2fd56f150641bb18b769e56751f0e8526f7df818f7264ef5ce0fc68ba83282b8",
            "hash": "653852b745e31bb06f56e414f6c98b76ef6fd842c15acd996c74a678717c7cfc",
            "actor": null,
            "seal": null
        },
        {
            "version": 3,
            "recorded_at": "2026-11-04T09:59:59Z",
            "content": "{\"cpv\": \"44165100\", \"url\": \"https://cognor.logintrade.net/portal,szczegolyZapytaniaOfertowe,29a8df1992316c402fa7866edac809ea.html\", \"buyer\": \"Cognor SA oddział Ferrostal Łabędy w Gliwicach\", \"title\": \"194357 / FE / Hydraulika: WĘŻE METALOWE DLA COGNOR GLIWICE\", \"region\": \"slaskie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"śląskie\", \"source_id\": \"cognor-29a8df1992316c402fa7866edac809ea\", \"deadline_at\": \"2026-11-09T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-03T10:58:00Z\"}",
            "content_hash": "16246bf7bf8fe3d99bf6db7c5189205619091c5e3e4fd69bcbb83d642dd9e422",
            "prev_hash": "653852b745e31bb06f56e414f6c98b76ef6fd842c15acd996c74a678717c7cfc",
            "hash": "26c6769751ee43719ed22487e3ea329a4ac02fca294ce9383ce12aedf23d22c2",
            "actor": null,
            "seal": null
        },
        {
            "version": 4,
            "recorded_at": "2026-11-04T10:46:29Z",
            "content": "{\"cpv\": \"44165100\", \"url\": \"https://cognor.logintrade.net/portal,szczegolyZapytaniaOfertowe,29a8df1992316c402fa7866edac809ea.html\", \"buyer\": \"Cognor SA oddział Ferrostal Łabędy w Gliwicach\", \"title\": \"194357 / FE / Hydraulika: WĘŻE METALOWE DLA COGNOR GLIWICE\", \"region\": \"slaskie\", \"source\": \"logintrade_central\", \"status\": \"active\", \"cpv_more\": [], \"location\": \"śląskie\", \"source_id\": \"cognor-29a8df1992316c402fa7866edac809ea\", \"deadline_at\": \"2026-11-09T09:00:00Z\", \"notice_type\": \"Zapytanie ofertowe\", \"published_at\": \"2026-11-03T10:58:00Z\", \"procedure_url\": \"https://cognor.logintrade.net/portal,szczegolyZapytaniaOfertowe,29a8df1992316c402fa7866edac809ea.html\"}",
            "content_hash": "52d6c4cec9d0654e67c24de67b3405e8537b5a12e2fc499857a6f5b6f10568bd",
            "prev_hash": "26c6769751ee43719ed22487e3ea329a4ac02fca294ce9383ce12aedf23d22c2",
            "hash": "b2c725b121c5a60b560d33cd3cb97ca29524e42f30df0c44612fa7dc1f9d6582",
            "actor": null,
            "seal": null
        }
    ]
}