International Business Machines Corporation

Nokia Technologies Oy

Xiao Guang Song

Peng Hui Jiang

Yong Wu

Zhi Jun Wang

Guang Han Sui

Qin Li

Hai Jun Xu

Jian Hua Zhang

Wu Gen Zhan

An example operation may include one or more of receiving, by a data server node, requests for data from a plurality of user nodes connected to a blockchain, retrieving, by the data server node, the data from the blockchain, dividing, by the data server node, the data into a plurality of portions and generating copies of the plurality of the portions, changing, by the data server node, at least one bit in each of the copies, encrypting, by the data server node, the copies and recording the copies into blocks on a second blockchain, recording, by the data server node, a plurality of sequence numbers of the blocks, and storing, by the data server node, the plurality of the sequence numbers on a second blockchain to be accessed by the plurality of the user nodes.

Protection of data trading

An approach, is presented for exchanging status updates while on and/or offline when collaborating on various activities via one or more networks. A method comprises determining one or more tasks associated with at least one collaborative activity for one or more devices participating in the at least one collaborative activity. The method also comprises determining status information for the one or more tasks with respect to the one or more devices. Further, the method also comprises causing, at least in part, an exchange of the status information among the one or more devices via at least one communication mechanism that supports offline messaging.

Method and apparatus for exchanging status updates while collaborating

Growing community of inventors

Beijing, China

Xiao Guang Song