The embodiment of the invention discloses a data processing method and device based on a blockchain network, and a storage medium, and the method comprises the steps: obtaining an enterprise tax refund declaration success notification transmitted by a tax terminal; acquiring electronic bill information corresponding to an enterprise identifier carried in the enterprise tax refund declaration success notification, and calling an intelligent contract to send a verification notification to the tax terminal, the intelligent contract running on a virtual machine of each of a plurality of nodes; ifa verification success notification sent by the tax terminal is received, calling the smart contract to generate a tax refund transaction corresponding to the electronic bill information; and sendingthe tax refund transaction to the tax terminal to enable the tax terminal to refund tax to a specified account corresponding to the enterprise identifier according to the tax refund information. Through the implementation mode, the automatic and intelligent requirements of enterprises for export product tax refund can be met, the tax refund efficiency is improved under the condition that the safety is ensured, and the enterprise cost is reduced.

Data processing method and device based on blockchain network and storage medium

One or more embodiments of the invention provide a work original auditing method, device and equipment based on a block chain. The method comprises the following steps: interacting with other node devices in the block chain, and electing a plurality of work auditing nodes; then, in response to a transaction initiated by a user, distributing the to-be-audited work carried in the transaction to eachaudit node, and carrying out original audit on the to-be-audited work by each audit node; and finally, in response to the auditing result submitted by each auditing node, determining a final auditingresult for the to-be-auditing work based on the auditing result returned by each auditing node.

Work original auditing method, device and equipment based on block chain

A transaction endorsement method and apparatus in a block chain, and a block chain network. The method is applied to an endorsement node in the block chain. The method comprises: receiving a transaction proposal from a client (S202); simulating and executing a smart contract on a block chain to verify content to be chained in the transaction proposal to obtain a verification result (S204); and generating an endorsement result according to the verification result, and returning the endorsement result to the client (S206). According to the method, the content to be chained is verified by means of the smart contract on a block chain endorsement node and is not subjected to full control of any person or organization, so that the verification process is open and transparent, the verification result is prevented from being interfered by subjective factors, and the fairness and reasonability of verification on chained content in a block chain are improved.

Transaction endorsement method and apparatus in block chain, and block chain network

The invention provides a transaction endorsement method and a transaction endorsement device in a block chain and a block chain network. The method is applied to an endorsement node in the block chain. The method comprises the following steps: receiving a transaction proposal from a client; simulating and executing the smart contract on the blockchain to audit the to-be-uploaded content in the transaction proposal to obtain an audit result; and generating an endorsement result according to the auditing result, and returning the endorsement result to the client. According to the method, the to-be-uploaded content is audited through the intelligent contract on the blockchain endorsement node and is not subjected to full-right control of any person or organization, so that the auditing process is open and transparent, the auditing result is prevented from being interfered by subjective factors, and the fairness and reasonability of blockchain uploading content auditing are improved.

Transaction endorsement method and device in block chain and block chain network

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Transaction endorsement method and device in block chain and block chain network

Transaction endorsement method and apparatus in block chain, and block chain network