Alipay (Hangzhou) Information Technology Co., Ltd.

Alibaba Group Holding Limited

Advanced New Technologies Co., Ltd.

Boyan Jia

Yanpeng Li

Wenqiang Zhao

Long Cheng

Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for phone fraud prevention. One of the methods includes adding a first identifier of a first phone event of a first user into a blockchain managed by one or more devices on a decentralized network. The first identifier of the first phone event is classified into a list of phone fraud identifiers. A second identifier of a second phone event involving a second user is received. The second identifier is compared with the list of phone fraud identifiers that includes the first identifier. In a case where the second identifier matches a phone fraud identifier in the list of phone fraud identifiers, the first user is notified that the second phone event involves a risk of phone fraud.

Decentralized automatic phone fraud risk management

The present specification discloses blockchain-based information processing methods, apparatus, and devices. The blockchain-based information processing method includes: obtaining tree-structured data describing target relationships from a blockchain; obtaining service data of a ith-level target in the tree-structured data describing target relationships from the blockchain, where i is a positive integer; and executing a smart contract used for resource allocation, to allocate resources to each ith-level target based on a resource allocation scheme that is in the smart contract and that corresponds to the service data of each of the one or more ith-level targets.

Blockchain-based information processing method and apparatus, and device

A computer-implemented method includes: compressing, by a service party, target data to be stored according to a preset compression template; assembling the compressed target data and a unique identifier of the preset compression template into storage transaction data; and transmitting the storage transaction data to a node device on a blockchain, so that the node device, in response to the storage transaction data, searches for a smart contract published on the blockchain, in which the smart contract corresponds to the unique identifier, invokes the preset compression template to determine that a data format of the target data conforms to a data format specified by the preset compression template, and in response to determining that the data format of the target data conforms to the data format specified by the preset compression template, stores the compressed target data.

Growing community of inventors

Hangzhou, China

Boyan Jia