发明授权
US07614081B2 Managing and sharing identities on a network 失效
管理和共享网络上的身份

Managing and sharing identities on a network
摘要:
A digital content file having user history information is received at a first device. The user history information includes an alias name of a previous user of the digital content file. A user may review the user history information of the digital content file for information of the previous user of the digital content.
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