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.
第五十条 任何个人和组织不得实施下列侵害未成年人合法权益、损害未成年人身心健康的行为：
，这一点在体育直播中也有详细论述
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丰田表示，包括子公司大发汽车和日野汽车在内的1月销量同比增长4.8%至887266辆，创下历年1月销量新高。1月份，丰田和雷克萨斯品牌在美国销量增长8.1%，在中国增长6.6%。1月份母公司海外汽车生产量同比下降5.9%至485270辆。（财联社）