State Grid Corporation of China

State Grid Digital Technology Holding Co., Ltd.

State Grid Blockchain Technology (beijing) Co., Ltd.

Boe Technology Group Co., Ltd.

Jiangxi Power Exchange Center Co., Ltd.

Beijing Power Exchange Center Co., Ltd.

Liaoning Power Exchange Center Co., Ltd.

East Inner Mongolia Power Exchange Center Company Ltd.

Fan Jia

Dong Wang

Da Li

Lihua Zhao

Jiaxing Xuan

Guomin Li

Hejian Wang

Zhan Su

Li Zhou

Nan Zhang

Shuai Wang

Wei Jiang

Liang Zhao

Zhe Zhang

Lei Zhou

Zheng Zhou

Xin Shi

Kai Xie

Xian Wei Zhang

Tong Xing

Shengyi He

Chao Yang

Desheng Bai

Jiangtao Li

Yonghui Liu

Haiqing Jia

Gang Chen

Kun Fan

Qingchun Li

Xin Li

Shengnan Zhang

Shijie Ji

Wen Xie

Jingli Feng

Shengzhi Lu

Hexiao Liang

Tian Sun

Xian Xie

The present disclosure provides a blockchain-based green power certification method, apparatus, and system, to pre-process obtained basic data to obtain proof-of-existence data, certify the proof-of-existence data from a production side and a consumption side by using a certification chain and a token chain respectively, and obtain a green power attribute certificate and a green power consumption label if the certification is passed; generate a unique digital identifier for the green power attribute certificate and the green power consumption label separately based on a non-fungible token (NFT), which realizes non-interchangeability, indivisibility, and other characteristics of the certificate and the identifier; and supervise and verify a certification process by using a chain of custody, and generate a corresponding unique blockchain identifier for the certification chain, the token chain, and the chain of custody separately through multi-chain interaction, so as to realize data interaction between blockchains.

Blockchain-based green power certification method, apparatus, and system

A blockchain-based transaction system for a green certificate includes an audit node, a proxy node, and an off-chain node. The proxy node is used by a power producer and a purchaser; the audit node verifies qualification information of the power producer, and send a green certificate to the power producer; the off-chain node predicts a transaction price of a next transaction; when receiving sale information of the power producer and purchase information of the purchaser, the proxy node sends the sale information, a digital signature of the power producer, the purchase information, and a digital signature of the purchaser to the off-chain node; the off-chain node matches the sale information and the purchase information, and sends successfully matched transaction information to the proxy node; the proxy node sends the successfully matched transaction information to a transaction smart contract; and the transaction smart contract performs transaction processing.

Blockchain-based transaction system for green certificate

The present disclosure provides a pixel driving circuit, an array substrate and a display panel. The pixel driving circuit of the present disclosure includes a switch transistor and N redundant switch transistors, the switch transistor and the N redundant switch transistors are connected in series, a second electrode of an Nredundant switch transistor is coupled to a first electrode of the switch transistor, and a second electrode of the switch transistor is coupled to a display electrode.

Pixel driving circuit, array substrate and display panel

Growing community of inventors

Beijing, China

Fan Jia