Alibaba Group Holding Limited
RETRIEVING VALUES OF DIGITAL TICKETS USING SMART CONTRACTS IN BLOCKCHAIN NETWORKS

Abstract:

Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for retrieval of values of digital tickets. One of the methods includes receiving a request from a client device for a current value of a digital ticket by a distributing node. The request includes the digital ticket and one or more value changing rules for determining the current value of the digital ticket. The distributing node retrieves a smart contract from a blockchain network in response to the request from the client device. The smart contract includes the one or more value changing rules for determining the current value of the digital ticket. The distributing node determines the current value of the digital ticket based on an original value of the digital ticket and the one or more value changing rules by executing the smart contract, and associates the current value with the digital ticket.