Invoice invalidation method and apparatus based on blockchain, and electronic device

An invoice invalidation method based on a blockchain, comprising:

• obtaining a transaction that has been recorded in the blockchain;
• determining whether the transaction is a refund transaction corresponding to a payment transaction that has been recorded in the blockchain;
• and
• in response to the transaction is a refund transaction corresponding to the payment transaction, invoking an invoice invalidation logic provided in a smart contract deployed in a blockchain network of the blockchain to invalidate a target invoice that is related to the payment transaction and recorded in the blockchain by updating a state of the target invoice from a valid state to an invalid state via a state identifier that is set for the target invoice.

An electronic device, comprising:

• a processor;
• and
• a memory storing machine-executable instructions,
• wherein by reading and executing the machine-executable instructions stored in the memory and corresponding to control logic for invoice invalidation based on a blockchain, the processor is enabled to perform acts including:
• receiving an invalidation request that is initiated by an invoice invalidation party for a target invoice recorded in the blockchain;
• in response to the invalidation request, determining whether the invoice invalidation party has authority to invalidate the target invoice;
• and
• in response to that the invoice invalidation party has the authority to invalidate the target invoice, invoking an invoice invalidation logic provided in a smart contract deployed in a blockchain network of the blockchain to invalidate the target invoice by updating a state of the target invoice from a valid state to an invalid state via a state identifier that is set for the target invoice.

An electronic device, comprising:

• a processor;
• and
• a memory storing machine-executable instructions,
• wherein by reading and executing the machine-executable instructions stored in the memory and corresponding to control logic for invoice invalidation based on a blockchain, the processor is enabled to perform acts including:
• obtaining a transaction that has been recorded in the blockchain;
• determining whether the transaction is a refund transaction corresponding to a payment transaction that has been recorded in the blockchain;
• and
• in response to the transaction is a refund transaction corresponding to the payment transaction, invoking an invoice invalidation logic provided in a smart contract deployed in a blockchain network of the blockchain to invalidate a target invoice that is related to the payment transaction and recorded in the blockchain by updating a state of the target invoice from a valid state to an invalid state via a state identifier that is set for the target invoice.