About Us


We believe that every development team should be able to leverage the power of blockchain technology. We believe the companies and individuals should be able to protect their data and identities in the digital world. We believe that the balance between privacy and regulation / social stability lies in embracing self-sovereign, censorship-resistant identity for humans and for machines.


In the future, every human and device will be able to protect their data flows (from chat messages to business contracts to digital money) while asserting identity when necessary. Banking will be contextual, available from the nearest device. Self-agency, self-sovereignty.

Honored by the world's most esteemed organizaions

Global Fintech Award

2018 Global Fintech Award

Association of Banks in Singapore

Keychain was recognized for its achievement in integrating its data provenance platform with Internet of Things (IoT) and for demonstrating the technology to the Japan Ministry of Economy, Trade, and Industry. Keychain was the first company representing Japan to receive the award. Keychain was the only blockchain company to be nominated and receive the Global Fintech Award.

Special Jury Prize

2017 Special Jury Prize

Japan Ministry of Economy, Trade, and Industry

Keychain was recognized for its IoT blockchain platform.

Research Grant

2017 Research Grant

Japan New Energy and Industrial Technology Development Organization

Keychain went on to refine its IoT blockchain platform with a research grant from the Japan New Energy and Industrial Technology Development Organization (NEDO), Japan's largest public management organization promoting research and development.

Management Team

Jonathan Hope

Co-founder and CEO

Jonathan is a technologist and second-time entrepreneur that believes that data security is the cornerstone of fintech’s next generation. An applied cryptographer by training, Jonathan dedicated much of his career to building and deploying high-frequency trading systems for companies such as Goldman Sachs and Bloomberg in New York and Tokyo. Jonathan created the Keychain technology to fortify operational integrity of data for the finance, industry, and enterprise sectors.

Kazuyoshi Mishima


Kazuyoshi is a serial entrepreneur who has over twenty years of experience in fintech. Before Keychain, he worked at Kraken as its Japan business development manager. He is a board advisor to the Fintech Association Japan and served as a board member of the Japan Crypto Business Association, of which fifteen registered crypto currency exchanges in Japan are member. He worked at companies such as Softbank, SBI group, and Daiichi Kangyo Bank and graduated from Keio University.



Date Established:May 24, 2016
Keychain Pte. Ltd.
Prudential Building, 19-06
30 Cecil St.
Singapore 049712


Date Established:September 27, 2016
Keychain GK
Lattice Aoyama Square, 2F
1-2-6 Minami Aoyama
Minato-ku, Tokyo
Japan 107-0062
Capitalization:20,000,000 JPY
Representative Director:Jonathan Hope