International Business Machines Corporation
Blockchain technology

Abstract:

Provided is a method for storing at least a portion of data registered in a blockchain in each of a plurality of node apparatuses, including selection of selecting whether to store data included in a block in one node apparatus among the plurality of node apparatuses, according to a characteristic of the one node apparatus; and data storage of storing at least a portion of the data included in the block in the one node apparatus, according to a result of the selection.