Don't worry. We de-duplicate non-anonymous signatures automatically, and anonymous signatures within 24 hours (before personal data is deleted). For anonymous signatories beyond 24 hours, we cannot verify there are no duplicates, though there is one human who manually reads all signatures and will try hard to notice and correct any abuse of the system.
BBC紀錄片：暗處的鏡頭——調查中國酒店偷拍影片黑市
，详情可参考51吃瓜
据美国阿克西奥斯新闻网站25日报道，美国多家技术巨头企业代表拟于下周前往白宫面见总统特朗普，其间将签署书面文件，承诺自行供应或购买人工智能（AI）数据中心所需电力。据报道，已有多家美国技术巨头承诺采取措施，避免消费者因人工智能技术发展而遭遇电费难题。预计下周前往白宫的企业包括美国开放人工智能研究中心（OpenAI）、亚马逊、微软、谷歌、“元”、xAI和甲骨文公司。（新华社）
Alison Francis,Senior Science Journalist