DISTRIBUTED LEDGER DEVICE AND DISTRIBUTED LEDGER METHOD FOR BLOCK CHAIN-BASED USER IDENTIFICATION MANAGEMENT

摘要

To provide a distributed ledger device and a distributed ledger method for managing identification of users and controlling the flow of tokens in a block chain, and a broadcast device and method of transaction information.SOLUTION: A distributed ledger device 1 includes: a memory module 12 for storing at least part of a block chain including an identification information management contract account and storing a distributed ledger including at least one already-stored reference identification information in the identification information management contract account; and a processing module 11 operatively coupled with the memory module 12 and performing a computer-readable program code of the identification information management contract account.SELECTED DRAWING: Figure 1