{"id":1295,"date":"2018-11-21T18:04:24","date_gmt":"2018-11-21T11:04:24","guid":{"rendered":"https:\/\/bap-software.net\/?post_type=bap-blog&#038;p=1295"},"modified":"2023-08-08T14:13:35","modified_gmt":"2023-08-08T07:13:35","slug":"blockchain-timestamp","status":"publish","type":"knowledge","link":"https:\/\/bap-software.net\/en\/knowledge\/blockchain-timestamp\/","title":{"rendered":"\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7 \u3010Timestamp\u3011"},"content":{"rendered":"<p class=\"qtranxs-available-languages-message qtranxs-available-languages-message-en\">Sorry, this entry is only available in <a href=\"https:\/\/bap-software.net\/ja\/wp-json\/wp\/v2\/knowledge\/1295\" class=\"qtranxs-available-language-link qtranxs-available-language-link-ja\" title=\"\u65e5\u672c\u8a9e\">\u65e5\u672c\u8a9e<\/a>.<\/p><p><b>\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u00a0<\/b>\uff08<span lang=\"en\">timestamp<\/span>\uff09\u306f\u3042\u308b\u30a4\u30d9\u30f3\u30c8\u304c\u8a18\u9332\u3055\u308c\u305f\u65e5\u6642\u30fb\u65e5\u4ed8\u30fb\u6642\u523b\u306a\u3069\u3092\u8a18\u9332\u3057\u3001\u8a18\u9332\u304c\u5b58\u5728\u3057\u3066\u3044\u308b\u3053\u3068\u3068\u6539\u7ac4\u3055\u308c\u3066\u3044\u306a\u3044\u3053\u3068\u3092\u8a3c\u660e\u3059\u308b\u30b7\u30b9\u30c6\u30e0\u3092\u6307\u3057\u307e\u3059\u3002<\/p>\n<p>\u96fb\u5b50\u7f72\u540d\u306a\u3069\u3067\u7528\u3044\u3089\u308c\u3066\u3044\u308bRFC3161 <span title=\"\u30ea\u30f3\u30af\u5148\u306e\u9805\u76ee\u306f\u307e\u3060\u3042\u308a\u307e\u305b\u3093\u3002\u65b0\u898f\u306e\u57f7\u7b46\u3084\u4ed6\u8a00\u8a9e\u7248\u304b\u3089\u306e\u7ffb\u8a33\u304c\u671b\u307e\u308c\u307e\u3059\u3002\">Time stamp protocol\u3067\u306fPKI\u3092\u5229\u7528\u3057\u3066\u304a\u308a\u3001<\/span>\u6642\u523b\u8a8d\u8a3c\u5c40(TSA:Time-Stamping Authority)\u304c\u30cf\u30c3\u30b7\u30e5\u5024\u306b\u6642\u523b\u60c5\u5831\u3092\u507d\u9020\u3067\u304d\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u7d50\u5408\u3057\u305f\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7(\u6b63\u78ba\u306b\u306f\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u30c8\u30fc\u30af\u30f3\u3068\u547c\u3073\u307e\u3059)\u3092\u5229\u7528\u8005\u306b\u9001\u4ed8\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u8a18\u9332\u3092\u50c5\u304b\u3067\u3082\u66f4\u65b0\u3057\u305f\u5834\u5408\u3001\u5909\u5316\u3057\u305f\u30cf\u30c3\u30b7\u30e5\u5024\u306e\u307f\u304cTSA\u306b\u63d0\u793a\u3055\u308c\u308b\u306e\u3067\u5229\u7528\u8005\u306f\u8a18\u9332\u5185\u5bb9\u3092\u77e5\u3089\u308c\u305a\u306b\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u53d6\u5f97\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3067\u306e\u7ba1\u7406\u304c\u5fc5\u8981\u306a\u30c7\u30fc\u30bf\u306f\u901a\u5e38\u3001\u4e00\u8cab\u6027\u306e\u3042\u308b\u66f8\u5f0f\u3067\u8a18\u9332\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u7570\u306a\u308b\u8a18\u9332\u306e\u6bd4\u8f03\u3092\u7c21\u5358\u306b\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u52a0\u3048\u3066\u3001\u6642\u9593\u306e\u7d4c\u904e\u306b\u4f34\u3063\u3066\u5909\u5316\u3059\u308b\u30a4\u30d9\u30f3\u30c8\u306e\u9032\u884c\u72b6\u6cc1\u306e\u8ffd\u8de1\u304c\u53ef\u80fd\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u306f\u4e00\u822c\u306b\u30a4\u30d9\u30f3\u30c8\u306e\u8a18\u9332\u4f5c\u6210\u3084\u6642\u7cfb\u5217\uff08&#8221;sequence 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\u30b7\u30b9\u30c6\u30e0\u306e\u8ab2\u984c<\/h2>\n<p>\u4eee\u306b\u4e00\u8cab\u6027\u306e\u3042\u308b\u8a18\u9332\u3092\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3068\u3068\u3082\u306b\u4f5c\u6210\u3057\u3066\u3082\u3001\u5f8c\u304b\u3089\u6539\u7ac4\u3055\u308c\u3066\u3057\u307e\u3046\u3068\u4fe1\u983c\u6027\u304c\u306a\u304f\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<p>\u7279\u306b\u3001\u4e0d\u7279\u5b9a\u591a\u6570\u304b\u3089\u306e\u30a2\u30af\u30bb\u30b9\u304c\u53ef\u80fd\u306a\u8a18\u9332\u306f\u5bb9\u6613\u306b\u6539\u7ac4\u3067\u304d\u3066\u3057\u307e\u3046\u305f\u3081\u3001\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u542b\u3080\u30c7\u30fc\u30bf\u30ed\u30b0\u306e\u4fdd\u7ba1\u30b7\u30b9\u30c6\u30e0\u3084\u30b5\u30fc\u30d0\u306b\u306f\u9ad8\u5ea6\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304c\u65bd\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h2>\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7 \u306e\u4f8b\uff08Wikipedia\u3088\u308a\u5f15\u7528\uff09<\/h2>\n<ul>\n<li>2005-10-30 T 10:45 UTC<\/li>\n<li>2007-11-09 T 11:20 UTC<\/li>\n<li>Sat Jul 23 02:16:57 2005<\/li>\n<li>1256953732\uff08UNIX\u6642\u9593\uff09<\/li>\n<li>(1969-07-21 T 02:56 UTC) &#8211; \u6708\u3078\u306e\u7b2c\u4e00\u6b69\u3002&#8221;<i>That&#8217;s one small step for [a] man, one giant leap for mankind<\/i>&#8220;\uff08\u300c<i>\u3053\u308c\u306f\u4e00\u4eba\u306e\u4eba\u9593\u306b\u3068\u3063\u3066\u306f\u5c0f\u3055\u306a\u4e00\u6b69\u3060\u304c\u3001\u4eba\u985e\u306b\u3068\u3063\u3066\u306f\u5049\u5927\u306a\u98db\u8e8d\u3067\u3042\u308b\u3002<\/i>\u300d\uff09, Neil Alden Armstrong.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-3521 size-full\" src=\"https:\/\/cdn.bap-software.net\/2018\/11\/blockchain-timestamp.jpg\" alt=\"BAP \u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\" width=\"650\" height=\"431\" 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