Business

DeCurret DCP is a company that issues digital currency in Japan. This digital currency, also known as tokenized deposits, is issued and circulated by a private company and is called DCJPY.
The Digital Currency Forum, for which DeCurret DCP serves as the secretariat, brings together participants from a variety of industries to research and discuss the minting of digital currency.

The following is a report summarizing the discussions held to date by DeCurret DCP and the Digital Currency Forum.

November 2021

Digital Currency DCJPY (tentative name) WhitePaper
Progress Report of the Digital Currency Forum

January 2023

The 2nd Progress Report of the Digital Currency Forum

July 2023

The 3rd Progress Report of the Digital Currency Forum

October 2023

Digital Currency DCJPY White Paper 2023	After completing the survey, you will receive a link to download the white paper. An English version is also available for download. Currently, the survey is only available in Japanese.

Digital Currency DCJPY White Paper 2023

After completing the survey, you will receive a link to download the white paper. An English version is also available for download.
Currently, the survey is only available in Japanese.

December 2024

Progress Report No.4

March 2025

Security Review Report Analysis of Threats and Mitigation Measures Based on Blockchain Connection Patterns	The Wallet Security Subcommittee has been studying the basic security requirements for systems utilizing the DCJPY Network to assist in the consideration of security measures by a wide variety of companies participating in the network, especially in the Business Zone. This document is a reorganization of the “Security review report [key management]” and the “Security review report [distributed ledger],” which were written based on activities conducted from December 2020 to March 2024. The contents of this document are expected to be useful for understanding the characteristics of the distributed ledgers that comprise the DCJPY Network and to serve as a guide for considering more detailed security requirements in the future. The DCJPY network, which is the subject of this study, is based on specifications designed and implemented for PoC.

Security Review Report
Analysis of Threats and Mitigation Measures Based on Blockchain Connection Patterns

The Wallet Security Subcommittee has been studying the basic security requirements for systems utilizing the DCJPY Network to assist in the consideration of security measures by a wide variety of companies participating in the network, especially in the Business Zone.
This document is a reorganization of the “Security review report [key management]” and the “Security review report [distributed ledger],” which were written based on activities conducted from December 2020 to March 2024. The contents of this document are expected to be useful for understanding the characteristics of the distributed ledgers that comprise the DCJPY Network and to serve as a guide for considering more detailed security requirements in the future. The DCJPY network, which is the subject of this study, is based on specifications designed and implemented for PoC.