Methods and devices for processing certificates in blockchain system

A device for processing certificates in a blockchain system, the device comprising:

• one or more processors;
• and
• one or more computer-readable memories coupled to the one or more processors and having instructions stored thereon that are executable by the one or more processors,
• wherein the one or more processors are configured to:
• cause a smart contract to be generated in the blockchain system, wherein the smart contract includes computer-readable instructions for processing certificates;
• after the smart contract is generated, send a first request for a first transaction to the blockchain system, the first transaction causing the blockchain system to execute the smart contract to generate a certificate specification based on the first request;
• receive, from the blockchain system, the certificate specification;
• send, to the blockchain system, a second request for a plurality of second transactions, the plurality of second transactions causing the blockchain system to execute the smart contract to generate a plurality of certificates, wherein the plurality of certificates comprise at least one of coupons, tickets, or vouchers;
• and
• asynchronously send, to the blockchain system, a plurality of third requests for a plurality of third transactions, each of the plurality of third transactions causing the blockchain system to execute the smart contract to write off a corresponding target certificate of the plurality of certificates.

A non-transitory computer-readable medium having stored therein instructions that, when executed by a processor of a device, cause the device to perform a method for processing certificates in a blockchain system, the method comprising:

• causing a smart contract to be generated in the blockchain system, wherein the smart contract includes computer-readable instructions for processing certificates;
• after the smart contract is generated, sending a first request for a first transaction to the blockchain system, the first transaction causing the blockchain system to execute the smart contract to generate a certificate specification based on the first request;
• receiving, from the blockchain system, the certificate specification;
• sending, to the blockchain system, a second request for a plurality of second transactions, the plurality of second transactions causing the blockchain system to execute the smart contract to generate a plurality of certificates, wherein the plurality of certificates comprise at least one of coupons, tickets, or vouchers;
• and
• asynchronously sending, to the blockchain system, a plurality of third requests for a plurality of third transactions, each of the plurality of third transactions causing the blockchain system to execute the smart contract to write off a corresponding target certificate of the plurality of certificates.