Blockchain Project Hyperledger Unveils Iroha – a Bridge for Web and Mobile Developers

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Hyperledger has just announced a new project called, Iroha which will  provide a more friendly development environment where C++, web, and mobile application developers can more easily contribute to the Hyperledger Blockchain Project.

Originally developed by Hyperledger member company, Soramitsu, Iroha was inspired by the Fabric architecture and aims to provide a development environment where C++, web, and mobile application developers can contribute to the Hyperledger Project.

What is Iroha?

Iroha seeks to complement Fabric, Sawtooth Lake, and other potential projects, by creating reusable components in C++ that can be called from languages such as Go. In this way, Iroha is additive to existing projects and the long term goal is to realize a robust library of reusable components that can be selected and used freely by those running distributed ledgers on Hyperledger technology.

“Iroha allows even more developers to interact with Hyperledger to build infrastructural projects and applications requiring distributed ledger technology,” said Brian Behlendorf, Executive Director of Hyperledger. “It is encouraging to see member companies actively contributing to a diverse and sustainable open source Blockchain ecosystem built on cooperation.”

The design and architecture of Iroha is greatly inspired by Fabric, in that Blockchain and chaincode services form the overall architecture. Where possible, APIs were made to be similar to Fabric and, rather than competing with Fabric, the goals of Iroha are to:

  1. Provide an environment for C++ developers to contribute to Hyperledger
  2. Provide infrastructure for mobile and web application support
  3. Provide a framework to experiment with new APIs and consensus algorithms that could potentially be incorporated into Fabric in the future.

Why Iroha?

Currently, the Hyperledger Project lacks an infrastructure project written in C++, thus limiting the potential developers who can contribute. Also, there is not currently a strong focus on user interaction or mobile applications, though both are necessary for the realization of the widespread use of distributed ledger technology. Iroha aims to rectify both of these points, bringing in more developers while providing libraries for mobile user interface development.

“We’re pleased that Iroha has been accepted for incubation into  Hyperledger,” said Makoto Takemiya at Soramitsu. “By creating C++, mobile, and web development environments for Hyperledger, new developers can join the project and help contribute not only to Iroha, but to other sub projects, such as Fabric and Sawtooth Lake.”

Iroha is a distributed ledger project that was designed to be simple and easy to incorporate into infrastructural projects requiring distributed ledger technology. Iroha features:

  1. Simple construction
  2. Modern, domain-driven C++ design
  3. Emphasis on mobile application development
  4. New, chain-based Byzantine fault tolerant consensus algorithm, called Sumeragi

Although turing complete smart contracts are available via chaincode in Java (running a sandboxed JVM), users do not need to write chaincode in order to define digital assets in Iroha. Common use cases, such as deploying new currencies and sending text messages, are available as part of the core framework. Iroha is composed of the following:

  • Iroha core
  • Iroha Native iOS Library
  • Iroha JavaScript Library
  • Iroha Native Android Library

Iroha core provides the distributed ledger infrastructure comprising the data membership services, consensus algorithm, peer-to-peer network transmission, data validation, and chaincode infrastructure. The iOS, Android, and JavaScript libraries provide convenience functions for performing common operations, such as digitally signing transactions. Future work will expand these common functions to interoperate with the Fabric ledger.

Who will work on Iroha?

Soramitsu has committed several full time engineers to the project. Makoto Takemiya of Soramitsu is the initial project maintainer, along with six other engineers at Soramitsu. Besides Soramitsu, the co-sponsors of the proposal and other Hyperledger members are considering committing resources to work on Iroha including Toshiya Cho of Hitachi, Takahiro Inaba of NTT Data, and Mark Smargon of Colu.

Soramitsu is also doing collaborative research with The University of Tokyo, The University of Aizu, and Center for Global Communications (GLOCOM, below) of International University of Japan. From the University of Tokyo, Hideyuki Tanaka will consider economics use cases with Iroha. From The University of Aizu, Yasushi Fujii will explore business use cases with Iroha. From GLOCOM, Soichiro Takagi will consider economics and scientific research using Iroha.

Learn more about Iroha

Working with community members and use case partners, we would like to continue to improve upon Iroha and have it reach and active project stage in the future. The end goal is to realize a suite of components that can be freely interoperable with other Hyperledger projects.

The following repositories on github have been created to manage Iroha resources:

You can learn more about Iroha in this whitepaper or other incubation projects under Hyperledger here. Iroha documentation can be found here. For those interested in additional information, please reach out to: info [@] hyperledger.org

About Richard Kastelein

Founder of industry publication Blockchain News, partner at ICO services collective CryptoAsset Design Group (helped raise over $200m+), director of education company Blockchain Partners (Oracle Partner) and ICO event organiser at leading industry event  CryptoFinancing (first ICO event in Europe) - Richard Kastelein is an award-winning publisher, innovation executive and entrepreneur. He sits on the advisory boards of half a dozen Blockchain startups and has written over 1200 articles on Blockchain technology and startups at Blockchain News and has also published pioneering articles on ICOs in Harvard Business Review and Venturebeat.
 
Kastelein has spoken (keynotes & panels) on Blockchain technology in Amsterdam, Antwerp, Barcelona, Beijing, Brussels, Bucharest, Dubai, Eindhoven, Gdansk, Groningen, the Hague, Helsinki, London, Manchester, Minsk, Nairobi, Nanchang, San Mateo, Shanghai,Tel Aviv and Venice. His network is global and extensive.
 
He is a Canadian (Dutch/Irish/English/Métis) whose writing career has ranged from the Canadian Native Press (Arctic) to the Caribbean & Europe. He's written occasionally for Harvard Business Review, Wired, Venturebeat, The Guardian and Virgin.com and his work and ideas have been translated into Dutch, Greek, Polish, German and French.
 
A journalist by trade, an entrepreneur and adventurer at heart, Kastelein's professional career has ranged from political publishing to TV technology, boatbuilding to judging startups, skippering yachts to marketing and more as he's travelled for nearly 30 years as a Canadian expatriate living around the world.
 
In his 20s, he sailed around the world on small yachts and wrote a series of travel articles called, "The Hitchhiker's Guide to the Seas' travelling by hitching rides on yachts (1989) in major travel and yachting publications. He currently lives in Groningen, Netherlands where he's raising three teenage daughters with his wife and sailing partner, Wieke Beenen.

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