Alibaba Group Holding Limited

Advanced New Technologies Co., Ltd.

Nan Li

Zhenyu Wang

Yu Yan

Songbo Yue

Chen Liang

Jun Wang

Jihai Zhang

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for blockchain-based file querying are provided. One of the methods includes: receiving a query request for a target file, the query request comprising identification information of a user and the target file; obtaining the target file based on the identification information of the user and the target file; providing a query page of the target file, the query page comprising interactive elements for selecting whether to upload the target file to a blockchain; receiving a user selecting to upload the target file to the blockchain; hashing the target file to generate a digital digest; signing the digital digest according to an asymmetric encryption algorithm using a private key associated with a cryptographic key pair to obtain a digital signature; and uploading the target file, the digital signature, and a public key associated with the cryptographic key pair.

Service processing system and method based on blockchain

One embodiment of the present invention provides a system for isolating virtual hosts on a network server device. During operation, the system creates a container for a virtual host of a plurality of virtual hosts of a web server running on the network server device. A respective virtual host of the plurality of virtual hosts represents a website running on the web server. If the system receives a web request for a dynamic resource from a client, the system identifies the virtual host as associated with the web request. The system then runs a script interpreter process for generating the dynamic resource in the container and sends a response message comprising the dynamic resource to the client.

Virtual host isolation

An information pushing method reduces the interference to the user and improves the utilization rate of information resources during the process of the information pushing. For example, the server sends the triggering condition in the form of triggering condition information, and the identification information corresponding to the information to be pushed to the client terminal. The client terminal determines whether to push the information to be pushed to the user based on the terminal information on its own and sends the identification information to the server. Then the server sends the information to be pushed to the client terminal according to the identification information so that the client terminal may push the information to be pushed to the user. Alternatively, the server determines whether to push the information to be pushed to the user according to the terminal information, and sends the information to be pushed to the client terminal so that the client terminal pushes the terminal information to the user.

Information pushing

Growing community of inventors

Hangzhou, China

Nan Li