{"author_url":"https://blog.hatena.ne.jp/kiwamu/","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkiwamu.hatenadiary.org%2Fentry%2F20090205%2F1233826235\" title=\" UUID - kiwamu\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","categories":["Ruby"],"author_name":"kiwamu","version":"1.0","published":"2009-02-05 18:30:35","provider_name":"Hatena Blog","blog_url":"https://kiwamu.hatenadiary.org/","image_url":null,"title":" UUID","url":"https://kiwamu.hatenadiary.org/entry/20090205/1233826235","height":"190","type":"rich","blog_title":"kiwamu\u65e5\u8a18","width":"100%","description":"\u3061\u3087\u3063\u3068\u898b\u3066\u305f\u306e\u3067\u307e\u3068\u3081\u3002 Universally Unique Identifier - Wikipedia RFC 4122 (rfc4122) - A Universally Unique IDentifier (UUID) URN Namespace UUID \u3068\u306f\u3001Universally Unique Identifier \u306e\u7565\u3067\u3001\u5206\u6563\u30b7\u30b9\u30c6\u30e0\u4e0a\u3067\u3069\u3053\u304b\u304c\u7d71\u5236\u3092\u53d6\u3089\u305a\u3068\u3082\u3001\u4e00\u610f\u306b\u7279\u5b9a\u53ef\u80fd\u306a\u8b58\u5225\u5b50\u3002\u5168\u90e8\u3067 16 bytes (128 bits) \u306e\u6570\u5b57\u3067\u8868\u3055\u308c\u3001ABNF \u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3002 UUID = time-low \"-\" time-mid \"-\" time-high-and-ve\u2026"}