Alipay (hangzhou) Information Technology Co., Ltd.

Advanced New Technologies Co., Ltd.

Alipay Information Technology Co., Ltd.

Kang Li

Fuxi Deng

Ning Xia

Dayi Yang

Xiaojun Liao

Embodiments of this specification provide a transaction processing method, apparatus, and electronic device for a blockchain. The method includes: executing, by a blockchain node in the blockchain, a consensus protocol for an N-th round of consensus, wherein the consensus protocol comprises reaching a consensus on a blockchain transaction of the N-th round of consensus and upon the consensus being reached, executing the blockchain transaction of the N-th round of consensus; writing, by the blockchain node after the execution of the blockchain transaction, a block comprising the blockchain transaction of the N-th round of consensus into the blockchain; and concurrently with the writing of the block, executing, by the blockchain node, the consensus protocol for an (N+1)-th round of consensus in the blockchain.

Transaction processing method, apparatus, and electronic device for blockchain

Methods, systems, and devices, including computer programs encoded on computer storage media, for payment are provided. One of the methods includes: sending a consensus proposal for at least one pending-consensus transaction in a transaction pool of the consensus master node to a target consensus backup node of the blockchain, wherein the consensus proposal comprises a transaction hash list, and the transaction hash list comprises a transaction hash of the at least one pending-consensus transaction; matching the transaction hash in the consensus proposal with transactions in a transaction pool of the target consensus backup node; in response to the transaction hash being matched, obtaining, from the transaction pool of the target consensus backup node, transaction information of the matched at least one pending-consensus transaction; and executing a process of the consensus proposal based on the transaction information.

Blockchain consensus method and device and electronic equipment

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for implementing blockchain-based private transactions are provided. One of the methods includes transmitting, at a first blockchain node of a number (N) of blockchain nodes that are involved in a private transaction, the private transaction to each of a plurality of second blockchain nodes of the N blockchain nodes, wherein N is at least four, at least (N&#x2212;F) signatures certifying the private transaction respectively from at least (N&#x2212;F) blockchain nodes of the first and second blockchain nodes, wherein F is a largest integer no more than (N&#x2212;1)/2; and submitting, at the first blockchain node, a hash value of the private transaction in association with the at least (N&#x2212;F) signatures to one or more blockchain nodes of a public blockchain for adding into the public blockchain.

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Hangzhou, China

Kang Li