Tencent Technology (shenzhen) Company Limited

Zte Corporation

Shenzhen Haibin Pharmaceutical Co., Ltd.

Peng Ren

Yong Zhao

Haitao Tu

He Wang

Qiuping Chen

Jian Han

Haoming Feng

Jiabao Chen

Libao He

Shuiping Zhou

Congquan Wu

Yanjun Zhang

Xingmin Xu

Hongfang Ai

Zhili Lv

Guangcheng Li

Cheng Ding

Zhaoqiang Lu

Lisong Long

A transaction transmitted by a user node in a blockchain network and transaction verification information corresponding to the to-be-verified transaction are acquired. The transaction verification information includes a state read set, a state write set, an initial transaction execution result, and a block identifier of a target block. A first block header of the target block includes the block identifier. A second block header is determined from a block header chain of a light node in the blockchain network. The state read set and the state write set are checked based on a first state snapshot in the second block header. The transaction service is executed to obtain a target transaction execution result corresponding to the transaction service and to-be-written state data. Legitimacy of the to-be-verified transaction is checked based on the initial transaction execution result, the target transaction execution result, the state write set, and the to-be-written state data.

Transaction verification of a transaction based on a blockchain network

A data archiving method includes: finding, in local space when an archiving task for a target block header exists, current state trees of block headers, the current state trees including a current state tree that the target block header points to and a current state tree that a first block header before the target block header points to; reconstructing new state trees according to the found current state trees, node reuse information between the current state trees, and target state data corresponding to a second block header after the target block header; and archiving the current state trees stored in the local space to a target archiving server, and deleting the current state trees in the local space after successful archiving.

Data archiving method and apparatus, device, and storage medium

Magnetic wireless charger

The present invention provides a doripenem intermediate compound shown by formula (XIV), wherein PNB is p-nitrobenzyl, and HX is an acid; and when HX is a monobasic acid, n=1; and when HX is a polybasic acid, n=2. The present invention also provides a process for preparing the doripenem intermediate compound (XIV). In addition, the present invention provides a process for preparing doripenem (I) from the doripenem intermediate compound (XIV) in a simple manner, with a high yield and low production costs. The new mono-protected doripenem intermediate compound provided in the present invention contains only one protecting group, reducing the difficulty and complexity in the subsequent de-protection step by catalytic hydrogenation, increasing the yield of the catalytic hydrogenation reaction, and thus reducing the production cost of the final product. The process is easy to operate and suitable for industrialized production. 

Doripenem intermediate compound, preparation process therefor and use thereof, and preparation process for doripenem

The present invention discloses a system and method for CSCF entity disaster tolerance and load balancing the system comprises P-CSCF entities, I-CSCF entities and S-CSCF entities, and further comprises a DNS Server. The present invention uses a DNS UPDATE message to report the load equivalent weight of the CSCF entity at regular time, so that the DNS Server can use the load equivalent weight when executing the load balancing strategy. It makes the disaster tolerance and load balancing in the IMS network be much easier to use and extend, thus reducing the load of the IMS network.

System and method for CSCF entity disaster tolerance and load balancing

Growing community of inventors

Shenzhen, China

Peng Ren