CN109242450A - Block catenary system and based on block catenary system realize method of commerce and transaction system - Google Patents
Block catenary system and based on block catenary system realize method of commerce and transaction system Download PDFInfo
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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Abstract
The disclosure proposes a kind of block catenary system and method for commerce and transaction system based on the realization of block catenary system, is related to e-commerce field.The trading scheme of the disclosure introduces monitoring party, increase supervision link, it is used to manage the supervision account of payment fund in the creation of block catenary system by monitoring party, and can just transfers accounts after supervising the signature of the neat each transaction participant of account collection to seller, can ensures the safety of payment fund.
Description
Technical Field
The present disclosure relates to the field of electronic commerce, and in particular, to a blockchain system, and a transaction method and a transaction system implemented based on the blockchain system.
Background
In electronic commerce, sellers and buyers can conduct transactions through the platform side. The seller issues commodity information on the platform side, the purchaser selects a commodity to be purchased from the issued commodity information, the payment fund is stored on the platform side, and the platform side transfers the payment fund to the seller after the purchaser confirms to receive the commodity sent by the seller.
Disclosure of Invention
The inventor finds that the fund safety is difficult to guarantee in the electronic transaction process of the related art due to lack of supervision.
The utility model discloses a transaction scheme based on block chain system realization introduces the supervisor, increases the supervision link, and the supervisor establishes the supervision account that is used for managing the payment fund at block chain system, and just can transfer to the seller after the supervision account gathers each transaction participant's signature, can ensure the safety of payment fund.
Some embodiments of the present disclosure provide a transaction method implemented based on a blockchain system, including:
the block chain system receives a commodity purchasing request sent by a purchaser and informs the purchaser of the commodity purchasing request to a corresponding seller;
the block chain system creates a transfer contract according to the request of a seller and invites transaction participants to participate in the transfer contract, wherein the transaction participants comprise the seller, the buyer, a supply chain server and a supervisor, or the transaction participants comprise the seller, the buyer and the supervisor;
the blockchain system creates a supervision account according to the request of the supervisor and informs the supervisor, the buyer and the seller of the address of the supervision account, so that the buyer transfers payment funds to the supervision account, the supervisor informs the seller of balance information of the supervision account, and the seller informs a supply chain service party of delivery to the buyer or the seller of delivery to the buyer;
the blockchain system collects the signature of the transfer contract of the transaction participants under the condition that the buyer confirms the receiving;
the blockchain system transfers payment funds for the purchaser from the administrative account to the seller account after aggregating the signatures of the transfer contracts by the transaction participants.
In some embodiments, the method further comprises: the block chain system receives the issued commodity information sent by the seller, calls a commodity circulation contract and changes the commodity state into the sale state so that the buyer can inquire or purchase the commodity.
In some embodiments, the issued goods information comprises seller identification, goods identification and signature information, wherein the signature information comprises seller identification and goods identification which are signed by a private key of a seller; and the block chain system acquires the public key of the seller according to the seller identifier, verifies the signature information by using the public key of the seller, and executes a step of calling a commodity circulation contract to change the commodity state into the sale state after the verification is passed.
In some embodiments, the method further comprises: the block chain system receives a commodity query request sent by a buyer, calls an integrity management contract, and returns evaluation information of at least one of a seller and a commodity requesting for query to the buyer so as to be referred by the buyer.
In some embodiments, the transfer contract is created by a contract management contract and triggers performance of a transfer operation, wherein the contract management contract triggers the transfer contract to perform the transfer operation after monitoring a transfer contract aggregate signature, and the transfer contract transfers payment funds of the buyer from the administrative account to the seller account.
In some embodiments, the address of the administrative account is signed by the administrator's private key and then notified to the seller and purchaser so that the seller and purchaser verify the legitimacy of the administrative account based on the administrator's public key.
In some embodiments, the method further comprises: the block chain system records the supply information of the commodities provided by a supply chain server or seller, wherein the supply information comprises the production information, the purchase information, the storage information and the transportation information of the commodities; the blockchain system records the delivery information of delivery of a supply chain server or a seller to a buyer; the block chain system records the receiving information sent by the buyer; the block chain system provides a tracing service according to the recorded at least one item of information.
In some embodiments, the blockchain system provides supply information, shipping information, and receiving information for the goods to the regulator for the regulator to arbitrate for the goods that the buyer is objecting.
In some embodiments, the method further comprises: in the case of a buyer returning goods, the blockchain system returns the buyer's payment funds from the administrative account to the buyer's account.
Some embodiments of the present disclosure provide a block chain system, including: a plurality of blockchain nodes, each blockchain node configured to:
receiving a commodity purchasing request sent by a purchaser, and informing the purchaser of the commodity purchasing request to a corresponding seller;
creating a transfer contract according to the request of a seller, and inviting transaction participants to participate in the transfer contract, wherein the transaction participants comprise the seller, the buyer, a supply chain server and a supervisor, or the transaction participants comprise the seller, the buyer and the supervisor;
creating a supervision account according to the request of the supervisor, and informing the supervisor, the buyer and the seller of the address of the supervision account so that the buyer transfers payment funds to the supervision account, the supervisor informs the seller of balance information of the supervision account, and the seller informs a supply chain service party of delivery to the buyer or the seller of delivery to the buyer;
in the event that the purchaser confirms receipt, collecting a signature of the transaction participant on the transfer contract;
after signing the transfer contract by the collective transaction participant, the purchaser's payment funds are transferred from the administrative account to the seller account.
In some embodiments, each blockchain node is further configured to: and receiving the issued commodity information sent by the seller, calling a commodity circulation contract, and changing the commodity state into a sale state so that the buyer can inquire or purchase the commodity.
In some embodiments, each blockchain node is further configured to: and receiving a commodity query request sent by the buyer, calling an integrity management contract, and returning evaluation information of at least one of the seller and the commodity requesting the query to the buyer so as to be referred by the buyer.
In some embodiments, the address of the administrative account is signed by the administrator's private key and then notified to the seller and purchaser so that the seller and purchaser verify the legitimacy of the administrative account based on the administrator's public key.
In some embodiments, each blockchain node is further configured to: in the case of a return of merchandise by the purchaser, payment funds by the purchaser are returned from the administrative account to the purchaser account.
Some embodiments of the present disclosure provide a block chain system, including:
a memory; and
a processor coupled to the memory, the processor configured to execute the transaction method of any of the preceding embodiments based on instructions stored in the memory.
Some embodiments of the present disclosure provide a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the transaction method of any of the preceding embodiments.
Some embodiments of the present disclosure provide a transaction system implemented based on a blockchain system, including:
the blockchain system of any one of the preceding claims,
and
the parties involved in the transaction are,
wherein, the transaction participants comprise a seller, a buyer, a supply chain service party and a supervisor, or the transaction participants comprise a seller, a buyer and a supervisor,
wherein,
a buyer configured to send a request to purchase goods to the blockchain system, and transfer payment funds to the administrative account, signing the account transfer contract in case of confirmation of receipt;
a seller configured to request the creation of a transfer contract to the blockchain system, notify the supply chain facilitator of the shipment to the buyer or to the buyer, and sign the transfer contract if the buyer confirms the receipt;
the monitoring party is configured to request the blockchain system to create a monitoring account and invite a transaction participant to participate in a transfer contract, notify a seller of balance information of the monitoring account, and sign the transfer contract when a buyer confirms to receive goods;
and the supply chain service side is configured to deliver the goods to the buyer and sign the transfer contract under the condition that the buyer confirms the receiving.
Drawings
The drawings that will be used in the description of the embodiments or the related art will be briefly described below. The present disclosure will be more clearly understood from the following detailed description, which proceeds with reference to the accompanying drawings,
it is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without undue inventive faculty.
Fig. 1 is a flow diagram of a transaction method implemented based on a blockchain system according to some embodiments of the present disclosure.
Fig. 2 is a flow diagram of a transaction method implemented based on a blockchain system according to some embodiments of the present disclosure.
Fig. 3 is a flow diagram of a transaction method implemented based on a blockchain system according to some embodiments of the present disclosure.
Fig. 4 is a block chain system diagram according to some embodiments of the present disclosure.
Fig. 5 is a block chain system diagram according to some embodiments of the present disclosure.
Fig. 6 is a schematic diagram of a transaction system implemented based on a blockchain system according to some embodiments of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure.
The present disclosure proposes a transaction scheme implemented based on a blockchain system. The blockchain is a novel application mode of computer technologies such as distributed data storage, point-to-point transmission, a consensus mechanism and an encryption algorithm. Trust issues for transaction participants may be mitigated using blockchain techniques.
The transaction participants include, for example, sellers, buyers, regulators, and optionally, supply chain services. Wherein, the supply chain service side participates in the production, purchase, storage, transportation and other links of the commodity. If the seller participates in the production, procurement, storage, and transportation of goods, etc., in addition to the sale of the goods, the transaction participant may not include a separate supply chain server.
The seller, the buyer, the supervisor and the supply chain service side all have own signature key and encryption key. The signing key is a private key that is owned by each transaction participant itself. The public key corresponding to the signing key may be held by other parties than itself. The sender signs the information in the transaction process by using the private key of the sender, and the receiver verifies the signature by using the public key of the sender so as to confirm the information source. The encryption key of the sender can be sent to the receiver along with the information in the transaction process, the encryption key of the sender is encrypted by using the public key of the receiver, the receiver can decrypt the encryption key of the sender by using the private key of the receiver, and then the receiver can decrypt the received information by using the encryption key (the encryption key is the same as the decryption key) of the sender. In addition, the seller, buyer and supply chain facilitator's encryption keys may be backed up at the supervisor, who may view the encrypted information of these transaction participants during the transaction.
The present disclosure also applies to intelligent contracts in blockchains, which is a computer protocol that propagates, validates, or executes contracts in an informational manner. Smart contracts allow trusted transactions to be conducted without third parties, which transactions are traceable and irreversible. The intelligent contracts to which the present disclosure applies include, for example:
contract management contracts used for creating transfer contracts and triggering the transfer contracts according to conditions.
And the integrity management contract is used for evaluating information processing such as integrity of participants, mutual evaluation after trading and the like.
The commodity circulation contract is used for supporting inquiry and update of information such as production and circulation of commodities and transfer of ownership.
And the transfer contract is used for transferring funds by utilizing tokens (or tokens) in the block chain system.
The following describes a transaction scheme implemented based on a blockchain system.
Fig. 1 is a flow diagram of a transaction method implemented based on a blockchain system according to some embodiments of the present disclosure. As shown in fig. 1, the method of this embodiment includes:
in step 110, the blockchain system receives a request for purchasing goods from a buyer, and notifies the buyer of the request for purchasing goods to a corresponding seller.
At step 120, the blockchain system creates a transfer contract at the seller's request and invites the transaction participants to participate in the transfer contract.
The transaction participants comprise sellers, buyers, supply chain servers and supervisors. Alternatively, the transaction participants include sellers, buyers, and regulators.
At step 130, the blockchain system creates an administrative account upon request by the administrator and notifies the administrator, buyer and seller of the address of the administrative account such that the buyer transfers payment funds to the administrative account, the administrator notifies the seller of the balance information of the administrative account, the seller notifies the supply chain service to ship to the buyer or the seller to ship to the buyer.
In step 140, the blockchain system collects signatures of the transaction participants on the transfer contract with the buyer confirming receipt and, upon collecting signatures of the transaction participants on the transfer contract, transfers payment funds for the buyer from the administrative account to the seller account.
In step 150, the blockchain system returns the buyer's payment funds from the administrative account to the buyer's account in the event that the buyer returns the goods.
According to the transaction scheme, the supervisor is introduced, the supervision link is added, the supervisor establishes the supervision account for managing the payment funds in the blockchain system, the supervision account collects the signatures of all transaction participants and transfers the signatures to the seller, and the safety of the payment funds can be guaranteed.
The following describes a transaction scenario in the case where the transaction participants include a seller, a buyer, a supervisor, and a supply chain facilitator, in conjunction with fig. 2.
Fig. 2 is a flow diagram of a transaction method implemented based on a blockchain system according to some embodiments of the present disclosure. As shown in fig. 2, the method of this embodiment includes:
in step 201, the supply chain service side sends supply information such as production information, purchase information, storage information and transportation information of the goods to the blockchain system, and requests to enter the chain. The blockchain system records the supply information of the goods provided by the supply chain service side so as to provide the tracing service.
Alternatively, the supply chain server may use its private key to sign the supply information of the goods. Correspondingly, after receiving the information sent by the supply chain server, the blockchain system verifies the signature information by using the public key of the supply chain server so as to confirm the source of the information. If the signature verification passes, the blockchain system may record the supply information of the goods provided by the supply chain service provider.
At step 202, the seller sends the published item information to the blockchain system to request the publication of the item. The issued commodity information comprises seller identification and commodity identification to indicate which commodity is requested to be issued and the affiliated seller. Correspondingly, the block chain system receives the issued commodity information sent by the seller, calls a commodity circulation contract and changes the commodity state requested to be issued into a sale state, so that the buyer can inquire or purchase the commodity.
Optionally, the issued commodity information sent by the seller may further include signature information, where the signature information includes "seller identifier and commodity identifier" signed by the private key of the seller, so that the blockchain system verifies the source of the information. Correspondingly, after receiving the information sent by the seller, the block chain system verifies the signature information by using the public key of the seller so as to confirm the source of the information. If the signature is verified, the blockchain system can change the commodity state requested to be issued into the sale state according to the issuing request of the seller.
In step 203, the purchaser sends a request for inquiring merchandise to the blockchain system, wherein the request carries the seller identifier and the merchandise identifier, so as to inquire the merchandise or the evaluation information of the seller. Correspondingly, the blockchain system receives a commodity query request sent by a buyer, calls an integrity management contract, and returns evaluation information of at least one of a seller and a commodity requesting for query, such as integrity evaluation of the seller and quality evaluation of the commodity, to the buyer so as to be referred by the buyer and improve the awareness and decision-making rights of the buyer.
Alternatively, the request for the query goods sent by the purchaser may be signed by the purchaser's private key. Accordingly, the blockchain system verifies the source of the information using the purchaser's public key.
Optionally, the evaluation information returned by the blockchain system may be subjected to private key signature processing by the blockchain system. Accordingly, the purchaser verifies the source of the information using the public key of the blockchain system.
In step 204, the buyer sends a request for purchasing goods to the seller through the blockchain system, where the request carries information such as buyer identifier, seller identifier, goods identifier, and quantity of goods.
Alternatively, the purchase goods request may be subjected to a private key signature process by the purchaser and an encryption process by the purchaser's encryption key. The encryption key of the purchaser is encrypted by the public key of the seller and then transmitted to the seller along with the request for purchasing the commodity. The seller can obtain the encryption key of the buyer by utilizing the private key of the seller to decrypt, the encryption key (the encryption key is the same as the decryption key) of the buyer is utilized to decrypt the request for purchasing the commodity, and then the public key of the buyer is utilized to verify the source of the request for purchasing the commodity.
At step 205, the seller sends a create transfer contract request to the blockchain system. Accordingly, the blockchain system creates a transfer contract at the seller's request and invites transaction participants, such as the seller, buyer, supply chain facilitator, and supervisor, to participate in the transfer contract.
At step 206, the seller sends an administrative account creation request to the administrator. Accordingly, the policer sends a policing account creation request to the blockchain system. The request carries buyer identification, supervisor identification and seller identification.
Optionally, the seller signs the request for creating the monitoring account with its own private key and encrypts the request with its own encryption key, and then sends the request to the monitoring party. After the encryption key of the seller is encrypted by the public key of the supervisor, the encryption key is sent to the supervisor along with the supervision account creation request. The supervisor uses the private key to decrypt to obtain the encrypted key of the seller, uses the encrypted key (the encrypted key is the same as the decrypted key) of the seller to decrypt the supervisory account creation request, and then uses the public key of the seller to verify the source of the supervisory account creation request.
In step 207, the blockchain system creates a regulatory account according to the request of the regulator, and notifies the address of the regulatory account to the buyer, the regulator and the seller according to the buyer identifier, the regulator identifier and the seller identifier carried in the request.
In some embodiments, the blockchain system notifies the address of the administrative account to the administrator, the administrator signs the address of the administrative account with its own private key and returns the signed address to the blockchain system, and the blockchain system notifies the buyer and seller of the address of the administrative account signed by the administrator's private key, so that the buyer and seller can verify the validity of the administrative account according to the public key of the administrator.
At step 208, the purchaser transfers payment funds to the corresponding administrative account based on the address of the administrative account.
In step 209, the supervising party monitors the corresponding supervising account according to the address of the supervising account, and notifies the balance information of the supervising account to the corresponding seller after monitoring the supervising account change event.
In step 210, the seller confirms the transfer of the buyer according to the notification of the supervisor, and notifies the supply chain service provider to deliver the goods to the buyer. The notified information includes, for example, the item identification, item quantity, purchaser address, purchaser contact, etc., so that the supply chain service can deliver the item according to the information.
Optionally, the seller signs the notification with its private key and encrypts the notification with its encryption key, and then sends the notification to the supply chain server. The vendor's encryption key is encrypted with the public key of the supply chain server and then sent to the supply chain server along with the notification. The supply chain server side can obtain the encrypted key of the seller by utilizing the private key of the supply chain server side for decryption, the notification is decrypted by utilizing the encrypted key (the encrypted key is the same as the decrypted key) of the seller, and then the source of the notification is verified by utilizing the public key of the seller. After the verification is passed, the supply chain service side delivers the goods to the buyer.
At step 211, the supply chain server sends shipping information to the blockchain system, requests for in-chain to provide traceability services, and requests the blockchain system to notify the buyer, monitor and seller of the shipping information.
Optionally, the shipment information signed and processed by the private key of the supply chain server is sent to the blockchain system, and the buyer, the monitor and the seller are notified, so that the blockchain system, the buyer, the monitor and the seller can verify the source of the information by using the public key of the supply chain server.
Alternatively, the supply chain server may encrypt the shipping information using its own encryption key. The encryption keys of the supply chain service side are respectively encrypted by public keys of the buyer, the monitoring side and the seller, and then are respectively sent to the buyer, the monitoring side and the seller along with the delivery information. The buyer, the monitoring party and the seller respectively use the private keys to decrypt to obtain the encryption key of the supply chain service party, and then use the encryption key of the supply chain service party to decrypt the delivery information.
The shipping information includes, for example, a delivery slip number, sender information, receiver information, shipping time, and the like.
After the purchaser receives the goods, the receipt is confirmed if the confirmation is correct, and the receipt may be rejected if there is a problem in step 212. The purchaser sends the shipping information to the blockchain system, requests entry of the chain to provide traceability services, and requests the blockchain system to notify the supply chain facilitator, the monitoring party, and the seller of the shipping information.
Optionally, the receiving information signed by the private key of the buyer is sent to the blockchain system, and the supply chain server, the monitor and the seller are notified, so that the blockchain system, the supply chain server, the monitor and the seller can verify the source of the information by using the public key of the buyer.
Alternatively, the purchaser may encrypt the receipt information using its own encryption key. The encryption keys of the buyer are respectively encrypted by the public keys of the supply chain server, the monitoring party and the seller, and then are respectively sent to the supply chain server, the monitoring party and the seller along with the receiving information. The supply chain server, the monitoring party and the seller respectively use the private keys to decrypt to obtain the encryption key of the buyer, and then use the encryption key of the buyer to decrypt the goods receiving information.
The receiving information includes, for example, a delivery order number, sender information, receiver information, receiving time, receiving result (such as receiving confirmation or receiving rejection), and the like.
In step 213, the purchaser, the supply chain facilitator, the monitor, and the seller sign the transfer contract, respectively, with the purchaser confirming receipt. The blockchain system collects signatures of the transaction participants on the transfer contracts and transfers payment funds of the buyer from the administrative account to the seller account after the signatures of the transaction participants on the transfer contracts are collected. The transfer information may inform the seller and purchaser.
In some embodiments, transfer contracts may be created by contract management contracts and triggered to perform transfer operations. And after monitoring the signature of the transfer contract integrated transaction participant by the contract management contract, triggering the transfer contract to execute transfer operation, and transferring the payment funds of the buyer to the seller account from the supervision account by the transfer contract.
In step 214, in the event that the purchaser refuses to receive goods, the purchaser returns the goods, mediated by the regulator. After the supply chain service side confirms that the returned commodities are received, the block chain system returns the payment funds of the buyer to the buyer account from the supervision account.
In some embodiments, the blockchain system may provide the recorded supply information, shipping information, and receiving information for the goods to the regulator for the regulator to arbitrate for the goods that the buyer proposed an objection. If the goods have quality problems, the supervisor can adjudicate the goods returning treatment.
In the transaction scheme of the embodiment, the supervisor is introduced, the supervision link is added, the supervisor establishes the supervision account for managing the payment funds in the blockchain system, and the supervision account is transferred to the seller after collecting the signatures of all transaction participants, so that the safety of the payment funds can be guaranteed. In addition, the safe transmission of the transaction information is realized through modes such as signature and encryption, and the safe storage and traceability of the transaction information are realized by using a block chain technology. The information in the block chain system is difficult to tamper and forge, and the provided tracing information is more credible.
The following describes a transaction scenario in the case where the transaction participants include a seller, a buyer, and a supervisor, in conjunction with fig. 3.
Fig. 3 is a flow diagram of a transaction method implemented based on a blockchain system according to some embodiments of the present disclosure. As shown in fig. 3, the method of this embodiment includes:
in step 301, the seller sends supply information such as production information, purchase information, storage information, and transportation information of the goods to the blockchain system to request for chaining. The blockchain system records the supply information of the goods provided by the seller so as to provide the tracing service.
Alternatively, the seller may sign the supply information of the goods using its own private key. Correspondingly, after receiving the information sent by the seller, the block chain system verifies the signature information by using the public key of the seller so as to confirm the source of the information. If the signature verification passes, the blockchain system may record the supply information for the goods provided by the seller.
Steps 302-304 are the same as steps 202-204, and are not repeated here.
At step 305, the seller sends a create transfer contract request to the blockchain system. Accordingly, the blockchain system creates a transfer contract according to the seller's request and invites transaction participants, such as the seller, buyer and supervisor, to participate in the transfer contract.
Steps 306-309 are the same as steps 206-209, and are not described herein.
In step 310, the seller delivers the goods to the purchaser after confirming the purchaser's transfer according to the notification of the administrator.
At step 311, the seller sends shipping information to the blockchain system, requests an in-chain to provide traceability services, and requests the blockchain system to notify the buyer and the monitor of the shipping information.
Optionally, the shipment information signed and processed by the private key of the seller is sent to the blockchain system, and the buyer and the monitoring party are notified, so that the blockchain system, the buyer and the monitoring party can verify the source of the information by using the public key of the seller.
Alternatively, the seller may encrypt the shipping information using its own encryption key. The encryption keys of the seller are respectively encrypted by public keys of the buyer and the monitoring party and then are respectively sent to the buyer and the monitoring party along with the delivery information. The buyer and the monitoring party respectively use the private keys to decrypt to obtain the encryption key of the seller, and then use the encryption key of the seller to decrypt the delivery information.
The shipping information includes, for example, a delivery slip number, sender information, receiver information, shipping time, and the like.
After the purchaser receives the goods, the receipt is confirmed if the confirmation is correct, and the receipt may be rejected if there is a problem in step 312. The purchaser sends the receipt information to the blockchain system, requests an incoming chain to provide traceability services, and requests the blockchain system to notify the monitoring party and the seller of the receipt information.
Optionally, the receiving information signed by the private key of the buyer is sent to the blockchain system, and the monitoring party and the seller are notified, so that the blockchain system, the monitoring party and the seller can verify the source of the information by using the public key of the buyer.
Alternatively, the purchaser may encrypt the receipt information using its own encryption key. After the encryption keys of the buyer are respectively encrypted by the public keys of the monitoring party and the seller, the encryption keys are respectively sent to the monitoring party and the seller along with the goods receiving information. The monitoring party and the seller respectively use the private keys to decrypt to obtain the encryption key of the purchaser, and then use the encryption key of the purchaser to decrypt the goods receiving information.
The receiving information includes, for example, a delivery order number, sender information, receiver information, receiving time, receiving result (such as receiving confirmation or receiving rejection), and the like.
In step 313, the purchaser, seller, and monitoring party sign the transfer contract, respectively, with the purchaser confirming receipt. The blockchain system collects signatures of the transaction participants on the transfer contracts and transfers payment funds of the buyer from the administrative account to the seller account after the signatures of the transaction participants on the transfer contracts are collected. The transfer information may inform the seller and purchaser.
In some embodiments, transfer contracts may be created by contract management contracts and triggered to perform transfer operations. And after monitoring the signature of the transfer contract integrated transaction participant by the contract management contract, triggering the transfer contract to execute transfer operation, and transferring the payment funds of the buyer to the seller account from the supervision account by the transfer contract.
In step 314, in the event that the purchaser refuses to receive goods, the purchaser returns the goods, mediated by the regulator. After the seller confirms the receipt of the returned goods, the blockchain system returns the payment funds of the purchaser from the administrative account to the purchaser account.
In some embodiments, the blockchain system may provide the recorded supply information, shipping information, and receiving information for the goods to the regulator for the regulator to arbitrate for the goods that the buyer proposed an objection. If the goods have quality problems, the supervisor can adjudicate the goods returning treatment.
In the transaction scheme of the embodiment, the supervisor is introduced, the supervision link is added, the supervisor establishes the supervision account for managing the payment funds in the blockchain system, and the supervision account is transferred to the seller after collecting the signatures of all transaction participants, so that the safety of the payment funds can be guaranteed. In addition, the safe transmission of the transaction information is realized through modes such as signature and encryption, and the safe storage and traceability of the transaction information are realized by using a block chain technology. The information in the block chain system is difficult to tamper and forge, and the provided tracing information is more credible.
Fig. 4 is a block chain system diagram according to some embodiments of the present disclosure. As shown in fig. 4, the block chain system 400 of this embodiment includes: a plurality of blockchain nodes 410, each blockchain node 410 configured to:
receiving a commodity purchasing request sent by a purchaser, and informing the purchaser of the commodity purchasing request to a corresponding seller;
creating a transfer contract according to the request of a seller, and inviting transaction participants to participate in the transfer contract, wherein the transaction participants comprise the seller, the buyer, a supply chain server and a supervisor, or the transaction participants comprise the seller, the buyer and the supervisor;
creating a supervision account according to the request of the supervisor, and informing the supervisor, the buyer and the seller of the address of the supervision account so that the buyer transfers payment funds to the supervision account, the supervisor informs the seller of balance information of the supervision account, and the seller informs a supply chain service party of delivery to the buyer or the seller of delivery to the buyer;
in the event that the purchaser confirms receipt, collecting a signature of the transaction participant on the transfer contract;
after signing the transfer contract by the collective transaction participant, the purchaser's payment funds are transferred from the administrative account to the seller account.
In some embodiments, each blockchain node 410 is further configured to: and receiving the issued commodity information sent by the seller, calling a commodity circulation contract, and changing the commodity state into a sale state so that the buyer can inquire or purchase the commodity.
In some embodiments, each blockchain node 410 is further configured to: and receiving a commodity query request sent by the buyer, calling an integrity management contract, and returning evaluation information of at least one of the seller and the commodity requesting the query to the buyer so as to be referred by the buyer.
In some embodiments, the address of the administrative account is signed by the administrator's private key and then notified to the seller and purchaser so that the seller and purchaser verify the legitimacy of the administrative account based on the administrator's public key.
In some embodiments, each blockchain node 410 is further configured to: in the case of a return of merchandise by the purchaser, payment funds by the purchaser are returned from the administrative account to the purchaser account.
Fig. 5 is a block chain system diagram according to some embodiments of the present disclosure. As shown in fig. 5, the block chain system 500 of this embodiment includes: a memory 510; and a processor 520 coupled to the memory 510, the processor 520 configured to perform the transaction method of any of the preceding embodiments based on instructions stored in the memory 510.
The present disclosure also proposes a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the transaction method of any of the preceding embodiments.
Fig. 6 is a schematic diagram of a transaction system implemented based on a blockchain system according to some embodiments of the present disclosure. As shown in fig. 6, a transaction system 600 includes:
the block chain system 610 of any of the previous embodiments,
and
the parties to the transaction 620 may be involved,
the transaction participants 620 include a seller 621, a buyer 622, a supply chain facilitator 623 and a supervisor 624, or the transaction participants 620 include a seller 621, a buyer 622 and a supervisor 624.
In some embodiments, the buyer is configured to send a request to purchase goods to the blockchain system and to transfer payment funds to the administrative account, in the event that receipt is confirmed, to sign the transfer contract. And the seller is configured to request the block chain system to create a transfer contract, inform the supply chain service party of the delivery to the buyer or the delivery to the buyer, and sign the transfer contract when the buyer confirms the delivery. And the monitoring party is configured to request the blockchain system to create a monitoring account and invite the transaction participants to participate in the transfer contract, inform the seller of balance information of the monitoring account, and sign the transfer contract under the condition that the buyer confirms the receiving. And the supply chain service side is configured to deliver the goods to the buyer and sign the transfer contract under the condition that the buyer confirms the receiving.
In addition, other functions (such as signing, encrypting, issuing goods, querying goods, monitoring and the like) of the transaction participants refer to the foregoing embodiments, and are not described herein again.
As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only exemplary of the present disclosure and is not intended to limit the present disclosure, so that any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (17)
1. A transaction method realized based on a blockchain system comprises the following steps:
the block chain system receives a commodity purchasing request sent by a purchaser and informs the purchaser of the commodity purchasing request to a corresponding seller;
the block chain system creates a transfer contract according to the request of a seller and invites transaction participants to participate in the transfer contract, wherein the transaction participants comprise the seller, the buyer, a supply chain server and a supervisor, or the transaction participants comprise the seller, the buyer and the supervisor;
the blockchain system creates a supervision account according to the request of the supervisor and informs the supervisor, the buyer and the seller of the address of the supervision account, so that the buyer transfers payment funds to the supervision account, the supervisor informs the seller of balance information of the supervision account, and the seller informs a supply chain service party of delivery to the buyer or the seller of delivery to the buyer;
the blockchain system collects the signature of the transfer contract of the transaction participants under the condition that the buyer confirms the receiving;
the blockchain system transfers payment funds for the purchaser from the administrative account to the seller account after aggregating the signatures of the transfer contracts by the transaction participants.
2. The method of claim 1, further comprising:
the block chain system receives the issued commodity information sent by the seller, calls a commodity circulation contract and changes the commodity state into the sale state so that the buyer can inquire or purchase the commodity.
3. The method of claim 2, wherein the issued goods information comprises a seller identification, a goods identification and signature information, the signature information comprising the seller identification and the goods identification signed by a private key of the selling seller;
and the block chain system acquires the public key of the seller according to the seller identifier, verifies the signature information by using the public key of the seller, and executes a step of calling a commodity circulation contract to change the commodity state into the sale state after the verification is passed.
4. The method of claim 1, further comprising:
the block chain system receives a commodity query request sent by a buyer, calls an integrity management contract, and returns evaluation information of at least one of a seller and a commodity requesting for query to the buyer so as to be referred by the buyer.
5. The method of claim 1 wherein the transfer contract is created by a contract management contract and triggers performance of a transfer operation, wherein the transfer contract is triggered to perform the transfer operation after the contract management contract monitors a transfer contract aggregate signature, and wherein the transfer contract transfers payment funds from the escrow account to the seller account.
6. The method of claim 1, wherein the address of the administrative account is signed by the administrator's private key and then communicated to the seller and purchaser so that the seller and purchaser verify the validity of the administrative account based on the administrator's public key.
7. The method of claim 1, further comprising:
the block chain system records the supply information of the commodities provided by a supply chain server or seller, wherein the supply information comprises the production information, the purchase information, the storage information and the transportation information of the commodities;
the blockchain system records the delivery information of delivery of a supply chain server or a seller to a buyer;
the block chain system records the receiving information sent by the buyer;
the block chain system provides a tracing service according to the recorded at least one item of information.
8. The method of claim 7 wherein the blockchain system provides the supply information, shipping information, and receiving information for the goods to the supervisor for the supervisor to arbitrate for the goods that the buyer proposes to disagree.
9. The method of claim 1, further comprising:
in the case of a buyer returning goods, the blockchain system returns the buyer's payment funds from the administrative account to the buyer's account.
10. A blockchain system, comprising: a plurality of blockchain nodes, each blockchain node configured to:
receiving a commodity purchasing request sent by a purchaser, and informing the purchaser of the commodity purchasing request to a corresponding seller;
creating a transfer contract according to the request of a seller, and inviting transaction participants to participate in the transfer contract, wherein the transaction participants comprise the seller, the buyer, a supply chain server and a supervisor, or the transaction participants comprise the seller, the buyer and the supervisor;
creating a supervision account according to the request of the supervisor, and informing the supervisor, the buyer and the seller of the address of the supervision account so that the buyer transfers payment funds to the supervision account, the supervisor informs the seller of balance information of the supervision account, and the seller informs a supply chain service party of delivery to the buyer or the seller of delivery to the buyer;
in the event that the purchaser confirms receipt, collecting a signature of the transaction participant on the transfer contract;
after signing the transfer contract by the collective transaction participant, the purchaser's payment funds are transferred from the administrative account to the seller account.
11. The system of claim 10, each blockchain node further configured to:
and receiving the issued commodity information sent by the seller, calling a commodity circulation contract, and changing the commodity state into a sale state so that the buyer can inquire or purchase the commodity.
12. The system of claim 10, each blockchain node further configured to:
and receiving a commodity query request sent by the buyer, calling an integrity management contract, and returning evaluation information of at least one of the seller and the commodity requesting the query to the buyer so as to be referred by the buyer.
13. The system of claim 10, wherein the address of the administrative account is signed by the administrator's private key and then communicated to the seller and purchaser so that the seller and purchaser verify the validity of the administrative account based on the administrator's public key.
14. The system of claim 10, each blockchain node further configured to:
in the case of a return of merchandise by the purchaser, payment funds by the purchaser are returned from the administrative account to the purchaser account.
15. A blockchain system, comprising:
a memory; and
a processor coupled to the memory, the processor configured to execute the transaction method of any of claims 1-9 based on instructions stored in the memory.
16. A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, implements the transaction method of any one of claims 1-9.
17. A transaction system implemented based on a blockchain system, comprising:
the blockchain system of any one of claims 10 to 15,
and
the parties involved in the transaction are,
wherein, the transaction participants comprise a seller, a buyer, a supply chain service party and a supervisor, or the transaction participants comprise a seller, a buyer and a supervisor,
wherein,
a buyer configured to send a request to purchase goods to the blockchain system, and transfer payment funds to the administrative account, signing the account transfer contract in case of confirmation of receipt;
a seller configured to request the creation of a transfer contract to the blockchain system, notify the supply chain facilitator of the shipment to the buyer or to the buyer, and sign the transfer contract if the buyer confirms the receipt;
the monitoring party is configured to request the blockchain system to create a monitoring account and invite a transaction participant to participate in a transfer contract, notify a seller of balance information of the monitoring account, and sign the transfer contract when a buyer confirms to receive goods;
and the supply chain service side is configured to deliver the goods to the buyer and sign the transfer contract under the condition that the buyer confirms the receiving.
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| CN201811107402.6A CN109242450A (en) | 2018-09-21 | 2018-09-21 | Block catenary system and based on block catenary system realize method of commerce and transaction system |
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Application publication date: 20190118 |