Alibaba Group Holding Limited
System and method for controlling restrictions on digital asset

Abstract:

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for controlling restrictions on digital asset. One of the methods includes: detecting a triggering event for derestricting a quantity of a digital asset associated with a tangible asset, wherein the tangible asset corresponds to a blockchain contract deployed on a blockchain; generating a blockchain transaction for transferring the quantity of the digital asset from a restricted blockchain account associated with the blockchain to an unrestricted blockchain account associated with the blockchain, wherein the blockchain transaction invokes the blockchain contract corresponding to the tangible asset; and sending the blockchain transaction to a blockchain node for adding to the blockchain.