The instant invention provides for a system and method for asynchronously sharing, backing up, and distributing data based on immutable entries. The system which is layered upon an existing operating system automatically stores, queues and distributes requested data among users. ...http://www.google.com.hk/patents/US20030046260?utm_source=gb-gplus-share專利 US20030046260 - Method and system for asynchronous transmission, backup, distribution of data and file sharing
