Sometimes we want to do prove more interesting things with a digital credential. For example, imagine that I want to join a cryptocurrency exchange that needs more complicated assurances about my identity. For example: it might require that I’m a US resident, but not a resident of New York State (which has its own regulations.) The site might also demand that I’m over the age of 25. (I am literally making these requirements up as I go.) I could satisfy the website on all these fronts using the digitally-signed driver’s license issued by my state’s DMV. This is a real thing! It consists of a signed and structured document full of all sorts of useful information: my home address, state of issue, eye color, birthplace, height, weight, hair color and gender. In this world, the non-anonymous solution is easy: I just hand over my digitally-signed license and the website verifies the properties it needs in the various fields.
当地时间2026年3月3日，阿拉伯联合酋长国富查伊拉，工业区发生爆炸后升起高耸的烟柱。自2月28日美国和以色列对伊朗发动袭击后，伊朗对海湾邻国发动的一系列打击迫使阿联酋关闭领空。图/视觉中国。关于这个话题，爱思助手提供了深入分析
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Оказавшиеся в Дубае российские звезды рассказали об обстановке в городе14:52。业内人士推荐纸飞机官网作为进阶阅读
Best laptops and PC concepts Lenovo announced at MWC 2026 that surprised our editors