Abstract: Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for blockchain-based service processing. One of the methods includes receiving a service processing request by a first service processing platform from a first user. The first service processing platform is one of a plurality of service processing platforms that access a blockchain network, and service data of the first user is shared between the plurality of service processing platforms over the blockchain network. In response to a determination that the service processing request involves a second service processing platform of the plurality of service processing platforms, it is determined whether the service processing request is permitted to be executed. In response to determining that the service processing request is permitted to be executed, the service processing request is executed over the blockchain network.

Abstract: Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for blockchain-based service processing. One of the methods includes receiving a service processing request by a first service processing platform from a first user. The first service processing platform is one of a plurality of service processing platforms that access a blockchain network, and service data of the first user is shared between the plurality of service processing platforms over the blockchain network. In response to a determination that the service processing request involves a second service processing platform of the plurality of service processing platforms, it is determined whether the service processing request is permitted to be executed. In response to determining that the service processing request is permitted to be executed, the service processing request is executed over the blockchain network.

Abstract: Disclosed herein are systems, methods, and media for processing and updating risk assessment information of a user. One of the methods here comprise: obtaining risk assessment information and digital identity of the user; creating a first verifiable claim based on the digital identity and the risk assessment information by using a first blockchain, revoking a second verifiable claim of original risk assessment information corresponding to the digital identity by using the first blockchain; uploading the first verifiable claim to a second blockchain; obtaining a storage credential of the first verifiable claim in the second blockchain, wherein the second blockchain is connected to a service processing platform; generating a risk assessment card corresponding to the user based on the storage credential and the first verifiable claim; and allowing the service processing platform to obtain the risk assessment information of the user from the second blockchain by using the risk assessment card.

Abstract: Disclosed herein are methods, systems, and media for obtaining a user's risk assessment information. An example method includes obtaining risk assessment information by performing risk assessment on a user; obtaining the user's digital identity; creating a first verifiable claim based on the digital identity and risk assessment information using a first blockchain, wherein the first verifiable claim comprises the risk assessment information; uploading the first verifiable claim to a second blockchain and obtaining a storage credential of the first verifiable claim in the second blockchain; generating a risk assessment card for the user based on the storage credential and the first verifiable claim, wherein the second blockchain is connected to a service processing platform; and providing access to the service processing platform to obtain the risk assessment information of the user from the second blockchain in response to determining that the service processing platform uses the risk assessment card.

Abstract: Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for blockchain-based resource transaction. One of the method includes receiving a resource transaction request by a first resource trading platform connected to a blockchain network from a first user to execute a first resource transaction related to risk assessment. Authorization information of a risk assessment card of the first user is queried from an authorization management platform that is connected to the blockchain network. If it is determined that the first resource trading platform is authorized to obtain risk assessment data of the first user, the risk assessment data of the first user is obtained from a blockchain node of the blockchain network. It is determined, based on the risk assessment data of the first user, whether to execute the first resource transaction for the first user.

Abstract: Disclosed herein are systems, methods, and media for processing and updating risk assessment information of a user. One of the methods here comprise: obtaining risk assessment information and digital identity of the user; creating a first verifiable claim based on the digital identity and the risk assessment information by using a first blockchain, revoking a second verifiable claim of original risk assessment information corresponding to the digital identity by using the first blockchain; uploading the first verifiable claim to a second blockchain; obtaining a storage credential of the first verifiable claim in the second blockchain, wherein the second blockchain is connected to a service processing platform; generating a risk assessment card corresponding to the user based on the storage credential and the first verifiable claim; and allowing the service processing platform to obtain the risk assessment information of the user from the second blockchain by using the risk assessment card.

Abstract: Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for blockchain-based service processing. One of the methods includes receiving a service processing request by a first service processing platform from a first user. The first service processing platform is one of a plurality of service processing platforms that access a blockchain network, and service data of the first user is shared between the plurality of service processing platforms over the blockchain network. In response to a determination that the service processing request involves a second service processing platform of the plurality of service processing platforms, it is determined whether the service processing request is permitted to be executed. In response to determining that the service processing request is permitted to be executed, the service processing request is executed over the blockchain network.