LongHash is a platform for accelerating the development
and understanding of blockchain technology.

We want to highlight the potential of Blockchain technology
and support its practical use. To achieve our mission,
we will incubate start-ups in Tokyo and bring in talent
and assets from outside of Japan. 



New functions, Address & Live Charts, were released on JP.LONGHASH.com!

New Functions, Address & Live Charts, were released on JP.LONGHASH.com. It shows how Top10,000 Bitcoin address uses …


LIVE Chart was released on LongHash.com!

LiveChart was released on LongHash.com! 5 Charts are available on this site. ・Tether’s effect of Bitcoin price ・Te…


JP.LONGHASH.com released!

Our service site, JP.LONGHASH.com, released today! Articles on “Discover” are selected by Japanese media. If…



Recently in Japan, workers' work style has been a hot topic. The key question is how to balance companies' profit against, individual's benefit as a worker, and as a consumer. There is no doubt that it is a big challenge for Japan's aging society. Especially in the current economy, resources (human resources, capital, data, etc.) are controlled by a small number of companies, and even as the economy recovering, it is not so optimistic for individuals and SMEs. As services and technology become more complex, companies are forced to enlarge their organization to deal with it, the cost for management and coordination is increased, decision making is delayed, and response to innovation and change is dulled. In order to improve efficiency as a society, we believe it is necessary to shift from this centralized economic organization model, to a flatter decentralized economic organization model where resource allocation is flexible, and individuals are empowered to make decisions based on transparent data and matching demand and supply in real time.
LONGHASH will take the initiative to adopt the decentralized economic organization model as a company. By incubating and contributing to blockchain projects that truly enables individuals to build transparent and vibrant communities. We hope to share knowledge and data to the general public to raise awareness to the benefit of blockchain and the decentralized economic model.

Chris Dai


company name k.k LONGHASH
address Arkhills South tower 16F, 1-4-5 Roppongi, Minato-ku, Tokyo, Japan
CEO Chris Dai
establishment Feburary 16,2018
capital 5,000,000 yen
about business media, online advertisement, big data analysis, incubation business




Mamoru Taniya

Mamoru TaniyaLONGHASH Japan Chairman

Mr. Taniya was formerly head of Asia trading for Salomon Brothers and co-founded many funds and fin-tech corporates including Tudor Capital Japan, Asuka Asset Management, Mercuria investment , D4V ,Lifenet and Money Design ,etc. Mr. Taniya is also the member of Advisory Panel for Global Financial City Tokyo and is one of the key architects of Tokyo’s blockchain accelerator Blockchain Business Camp Tokyo. Mr. Taniya received his B.A. in law from the University of Tokyo in 1987.

Chris Dai


Chris has a broad range of business management and investment experience. He is the co-founder and CEO of Leland Capital, a cross-border investment fund between China and Japan. He was formerly the COO / CIO Yixing SCM (a logistics provider), a consultant at Accenture, and co-founder of multiple ventures. Chris was one of the earliest investors in Bitcoin and Ethereum in China. He received a B.S. in Management Science and Engineering from Stanford University in 2004.

James Gong

James GongLONGHASH Co-founder

Founder of ICOAGE (formerly the largest ICO platform in China) and ChainB (the largest Chinese blockchain media). James has been a leading blockchain and cryptocurrency evangelist and key opinion leader in China since 2012. He has helped to translate innumerable blockchain related articles and whitepapers into Chinese, as well as having authored many books on blockchain, including “The Blockchain Society”, “Blockchain – the New Economy’s Blueprint”, and “Cryptocurrency”.

Yanfeng Chen

Yanfeng ChenLONGHASH Co-founder

Founder of Tuolian , Cryptocurrency Custodian Service Provider. Co-founder of Cybex, a decentralized exchange, and Tokex, a big data analytics company for business and AML service. Former regional manager of National Instruments. Good expertise in blockchain and cryptograph technology and security. M.A in electronic engineering of Shanghai Jiao Tong University.

Emily Parker

Emily ParkerLONGHASH Co-founder

Formerly a staff writer and editor at The Wall Street Journal, staff editor at The New York Times, policy advisor for the US State Department and chief strategy officer at Silicon Valley start-up Parlio (acquired by Quora). Writes about technology and foreign affairs for The New York Times, The Wall Street Journal, CNN, MIT Technology Review, The Washington Post and other publications, as well as for Japanese media. Author of the book, "Now I Know Who My Comrades Are: Voices From the Internet Underground," which has been assigned in classes in top universities in the United States. BA with honors from Brown University in international relations and comparative literature. MA from Harvard in East Asian Studies (Chinese and Japanese).

Steven Pu

Steven PuU.S. Representative

Steven is a serial entrepreneur and strategy consultant, with over a decade of experience advising and implementing strategic transformations for Fortune 100 clients. He was an associate director at Monitor-Deloitte Consulting. He co-founded LinkSens (IoT mesh networks), EviPath (social network for physicians to exchange and discuss medical cases), and Master He (on-call massage service app). He received both a B.S. and a M.S. in Electrical Engineering from Stanford University in 2004 and 2005, respectively.

Jianbo Wang

Jianbo Wang Head of LONGHASH Hong Kong

Formerly Director of ETF and China Risk trading at Deutsche Bank Asia, VP of ETF and Equity derivatives trading Citigroup Asia, VP of Equity derivatives proprietary trading at Credit Suisse. Jianbo is familiar with global financial markets and derivatives trading and has a deep understanding of ETF and other innovative financial products. He received both a B.S. and a M.S. in Electrical Engineering from Stanford University in 2003 and 2005, respectively.


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