Advanced New Technologies Co., Ltd.

Alibaba Group Holding Limited

Zhen Sun

Ge Jin

Xueqing Yang

Zhenzhong Meng

Yu Chu

Longsheng Qing

Ping Zhang

Zhenyu Yang

Wenhu Kan

Jinming Duan

Hansong Xiao

Liangrong Lin

Wei Chen

Qin Liu

Dongxu Li

A target transaction to write off a target e-bill is received. In response to the target transaction, a write-off logic declared in a smart contract published on a blockchain is invoked. A bill number of the target e-bill is obtained, and whether the bill number matches an e-bill number segment maintained in a blockchain account corresponding to a bill issuer of the target e-bill is checked. In response to determining that the bill number matches the e-bill number segment maintained in the blockchain account corresponding to the bill issuer of the target e-bill, a validity check is performed on bill content of the target e-bill. After the validity check succeeds, generating a write-off completion event corresponding to the target e-bill is generated and published to the blockchain for storage.

Blockchain-based bill write-off method, apparatus, electronic device, and storage medium

One or more implementations of the present specification provide an invoice invalidation method and apparatus based on a blockchain, and an electronic device. The method includes: 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.

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

This disclosure relates to blockchain-based reimbursement. In some aspects, a network node on a blockchain network receives a target transaction. The target transaction includes a target electronic bill identifier. In response to receiving the target transaction, expense splitting logic is invoked. The expense splitting logic is specified in a smart contract deployed on the blockchain Respective expense splitting notes are generated based on the expense splitting logic and an unreimbursed amount included in reimbursement information that is stored in the blockchain and that corresponds to the target electronic bill identifier. The respective expense splitting notes are broadcasted to the blockchain for storage.

Blockchain-based reimbursement splitting

A computer-implemented method, non-transitory, computer-readable medium, and computer-implemented system is provided for obtaining a real-name electronic bill. In response to an association operation initiated by a user for a target electronic bill, an association transaction is published that includes an identifier of the target electronic bill, where the association transaction causes a network node on the blockchain to return identity association prompt information when determining that the target electronic bill stored in the blockchain is not associated with user identity information (UII). The UII is collected when receiving the identity association prompt information. The UII is sent to the network node, where the network node verifies whether the UII matches identity information of a payment user in the target electronic bill, and after verification succeeds, publishes an association relationship between the UII and the identifier of the target electronic bill to the blockchain for storage.

Obtaining a blockchain-based, real-name, electronic bill

Implementations of the present specification provide methods, apparatuses, and electronic devices for resource allocation based on blockchain. The blockchain stores a mapping relationship between a digital digest of an invoice and a resource allocation state corresponding to the invoice. The method includes: receiving a target transaction submitted by a client to participate in resource allocation based on a target invoice; in response to the target transaction, calculating a digital digest of the target invoice, and querying a resource allocation state stored in the blockchain and corresponding to the digital digest; and if the detected resource allocation state is an unallocated state, invoking resource allocation logic declared in a smart contract published in the blockchain, to allocate resources to the client from a predetermined resource pool based on a predetermined allocation rule, and returning a resource allocation result to the client.

Method, apparatus, and electronic device for resource allocation based on blockchain

One or more implementations of the present specification provide a blockchain-based electronic bill reimbursement method, apparatus, and an electronic device. The blockchain stores electronic bills. The method includes determining whether a maintained target electronic bill is in an unreimbursed state in response to detecting a reimbursement transaction broadcasted by a reimbursement initiator for the target electronic bill to the blockchain; if the target electronic bill is in the unreimbursed state, updating the target electronic bill from the unreimbursed state to a reimbursement lock state; instructing a reimbursement acceptor to perform reimbursement processing on the target electronic bill; determining whether a reimbursement result corresponding to the target electronic bill is broadcasted by the reimbursement acceptor to the blockchain; and if the reimbursement result is detected, updating the target electronic bill from the reimbursement lock state to a reimbursed state.

Blockchain-based electronic bill reimbursement method, apparatus, and electronic device

A computer-implemented method, non-transitory, computer-readable medium, and computer-implemented system are provided for applying a blockchain-based e-bill number. A blockchain includes multiple levels of accounts used to maintain e-bill number segments. An e-bill number application transaction published to the blockchain is received, where the e-bill number application transaction includes an account identifier of an account of a number applicant; allocating one or more e-bill numbers to the number applicant from an e-bill number segment maintained in an upper-level account corresponding to the account of the number applicant in response to the e-bill number application transaction; and adding the one or more e-bill numbers allocated to the number applicant to the account of the number applicant for maintenance.

Blockchain-based e-bill number application method, apparatus, and electronic device

In an implementation of a computer-implemented method, a target transaction sent by a billing initiator is received, where the target transaction includes bill information of an e-bill to be issued. In response to the target transaction, check logic is invoked in a smart contract deployed in a blockchain network, and a validity check is performed on the bill information. If the validity check succeeds, allocation logic is invoked in the smart contract, and an e-bill number is allocated to the bill information from available e-bill number segments maintained in a blockchain account corresponding to a biller of the e-bill.

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Hangzhou, China

Zhen Sun