A block-chain system including a multi-block chain structure and a method for forming a block-chain in the block-chain system

摘要

Provided are a block chain system including a multi-block chain structure and a block chain forming method in the block chain system. The block chain system including a multi-block chain structure, as a block chain system including a plurality of data blocks forming a multi-block chain structure, comprises: a mother block chain comprising a plurality of blocks connected from an original block; and first and second block chains branched from and connected to a mother block located at the end of the mother block chain. A first block which is a first block of the first block chain and connected to the mother block includes block information including a hash value of the mother block, and a second block which is a first block of the second block chain and connected to the mother block includes block information including the hash value of the mother block.