当年龄验证机制下沉至操作系统层面时，这一转变更为明显。部分美国提案设想的不再是网站单次核验，而是由操作系统维护持续性的年龄状态层，并通过系统级接口向应用程序提供。至此，年龄验证已不再像是有限防护措施，而开始呈现出设备全域通用身份识别层的特征。
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