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Hyperledger Composer

Developer Showcase: Vishwasrao Salunkhe, Virtusa

By | Blog, Hyperledger Composer, Hyperledger Fabric

Our Developer Showcase blog series serves to highlight the work and motivations of developers, users and researchers collaborating on Hyperledger’s incubated projects. Next up is Vishwasrao Salunkhe, a lead consultant at Virtusa.

What advice would you offer other technologists or developers interested in getting started working on blockchain?

First start with the basic concepts of Blockchain like Cryptography, Consensus algorithm, Peer to Peer communication, distributed applications. Once you are comfortable I recommend completing the below course to get a high level overview of Blockchain:

https://developer.ibm.com/courses/all/blockchain-essentials/

After this course, you can start playing with Hyperledger Composer Playground and start with existing examples, understand how to define business network, Assets, Participants, Transactions and Events.

You should be familiar with JavaScript. You will be able to define business network in Hyperledger Composer with a JavaScript like Language. Also with help of NodeJS SDK you will be able to talk to the underlining Hyperledger Fabric network. So, only with the JavaScript Language you will be able to develop applications (frontend, backend) around Hyperledger Fabric.

Vishwasrao Salunkhe, Lead Consultant, Virtusa

What project in Hyperledger are you working on? Can you sum up your experience with Hyperledger?

I am working on Hyperledger Fabric. I started working with Fabric 0.6. Once I got the basics of it, I started writing a smart contract in the Go Language. There were few issues I was facing like setting the Hyperledger Fabric network, writing smart contracts in Go (new language for me) and deploying the smart contracts.

Hyperledger Composer is life savior for me, it made my job so easy that I am able to define my business network, assets, transactions etc with a JavaScript like language, deploy locally and test it. Before defining my own business network, I went through all existing demo business network and tried to run them, then changed a few things like assets attributes, participant’s attributes and transactions.

What do you think is most important for Hyperledger to focus on in the next year?

Make developers’ lives easy. Until we have an ecosystem of tools around Hyperledger to design, develop, test, deploy blockchain applications, developers will not be able to move fast with Hyperledger

With Hyperledger Composer, it’s easy to get started, so we need more tools like Composer.

Also, we need to evangelize Hyperledger projects through online talks, webinars, workshops and conferences to spread word.

As Hyperledger’s incubated projects start maturing and hit 1.0s and beyond, what are the most interesting technologies, apps, or use cases coming out as a result from your perspective?

Prior to the 1.0 release of Hyperledger Fabric, people had so many business cases to solve with blockchain but they were not enough tools to get beyond POCs. But with 1.0, people started going beyond POCs or MVPs. Some businesses are already started to use Hyperledger Fabric in production. This is good sign. Also, now new apps, tools frameworks are sprouting up all over.

I would like to see more tools and frameworks come up which will help to speed blockchain implementations. Also, giants like IBM, SAP, Oracle will come up with integrations of their existing applications with Hyperledger.

Where do you hope to see Hyperledger and/or blockchain in 5 years?

Internet made people to come close, now blockchain will make businesses to come close

As per hype made in media that blockchain will be mostly used in financial sector, I think not only in finance but fields like supply chain, Insurance, retail and most importantly government sectors will also be covered by blockchain. And Hyperledger will be leading blockchain.

Consider Shipping/Logistics scenario with IoT enabled shipping containers:

Participants: Sender, receiver, freight companies, customs, and banks, Insurance Companies

Assets: Cargo Properties, shipping documents

Business Rule: temperature in containers should always be more than 5 degree.

Sender  =====è  Transporter 1(Ship)      ======è Transporter 2 (Road)  ===è Receiver

                              Insurance Company 1             Insurance Company2   

Blockchain in Logistics/Supply Chain Example (Image Credit)

Goods moved from sender to receiver go through various transportation mode and different insurance companies are involved.

Containers are IoT enabled and data sent from them are stored into Blockchain network. Now when goods are with Transporter 1 and while transporting he does not follow business contract (E.g. Temp of containers should be below 5 degree all time), because of that some containers are not damaged/not useful, then T1 will get penalized based on smart contract and claim processing of these damaged goods will be trigger automatically for Insurance Company 1.

Also, once T1 hands over container to T2, his payment gets triggered

 

VIDEO: Hyperledger, A Greenhouse Incubator for Blockchain Projects

By | Blog, Hyperledger Burrow, Hyperledger Cello, Hyperledger Chaintool, Hyperledger Composer, Hyperledger Explorer, Hyperledger Fabric, Hyperledger Indy, Hyperledger Iroha, Hyperledger Sawtooth

Hyperledger hosts and incubates multiple technology projects, all advancing business blockchain frameworks and modules through open source collaboration. Currently, Hyperledger hosts 6 open source frameworks and 3 open source blockchain tools.

To introduce the concept of blockchain technologies and the Hyperledger organization, we created an explainer video illustrating Hyperledger as a greenhouse incubator for these open source blockchain projects. Intended to serve as a starting point suitable for all audiences wanting to learn about Hyperledger and business blockchain technologies, we hope this 3-minute explainer video will shed light on the following:

1. A distributed ledger is a common system of record with no central authority.

A ledger contains a record of your transactions, along with other transactions in the network. Distributed ledgers are multi-party databases with no central trusted authority. Blockchains can be used to record promises, trades, transactions or simply items we never want to disappear.

2. It’s vitally important to know that your copy of the ledger is identical to everyone else’s

All businesses participating in a commercial ecosystem need a ledger to contain a record of transactions. As a result, across the global market there are ledgers that organizations and individuals alike must trust. Mirrored exactly across all nodes in a given network, distributed ledgers allow everyone in an ecosystem to keep a copy of the common system of record, free from discrepancies. Nothing can ever be erased or edited; parties can only add to the ledger.

3. Hyperledger provides the underlying open source software, on top of which anyone can set up blockchain apps and services to meet business needs.

Hyperledger is incubating and promoting enterprise grade, open source business blockchain technologies, including distributed ledgers, smart contract engines, client libraries, graphical interfaces, utility libraries, and sample applications. Built under technical governance and open collaboration, individual developers, service and solution providers, government associations, corporate members and end users alike are all invited to participate in the development and promotion of these thriving technologies.

4. Hyperledger is a global, cross-industry, collaborative open source consortium.

With 170+ member organizations working across industries and competitive lines, and 400+ code contributors, Hyperledger is the fastest growing consortium in the history of The Linux Foundation’s collaborative projects. Just like you see in this greenhouse, with the help of The Linux Foundation and Hyperledger’s open source approach, everyone does their part to ensure the success of the whole, nurturing these blockchain ecosystems for evolution, expansion and continued growth.

The most renowned leaders in finance, healthcare and supply chain across the globe trust Hyperledger to build their business blockchain technologies. Who will you trust with your trust network?

We encourage developers to join our efforts on Hyperledger via github, Rocket.Chat, the wiki or the mailing lists. You can also follow Hyperledger on Twitter or email us with any questions: [email protected].

 Watch and Share the video:

Developer Showcase: Chuck Buhecker, Federal Reserve Bank of Boston

By | Blog, Hyperledger Composer, Hyperledger Explorer, Hyperledger Fabric

What advice would you offer other technologists or developers interested in getting started working on blockchain?

My advice is two-fold.

First, start now. There’s so much to learn. Begin by exploring and understanding the theory behind DLTs; then get your hands dirty with as many examples as you can find. There is a lot of learning involved with the technologies incorporated within Fabric. After working primarily with Java and a few other languages sprinkled in for 18 years, I found YAML files, Golang, and Docker all to be eye-openers.

Second, be patient. Be prepared to do a lot of reading, coding, and experimenting. Even if you have been told by an “expert” in the field that what you are trying to accomplish won’t work, still give it a shot. What you learn along the way is invaluable.

This technology is continuously evolving, and what works in one version may not work in the next. I’ve mostly seen positive outcomes from experimentation. Don’t be tempted to throw your hands up in disgust. Okay, maybe once or twice… but persistence is a virtue!

Chuck Buhecker, Senior application developer, Federal Reserve Bank of Boston

Give a bit of background on what you’re working on, and let us know what was it that made you want to get into blockchain?

I was a latecomer to blockchain and DLT. About a year ago, I started working on a simple AngularJS UI by interacting with Spring REST, and in turn calling Ethereum APIs for a proof of concept (POC) at the Federal Reserve Bank of Boston.

Upon completion of our initial POC, we began looking at Hyperledger Fabric v0.6. That’s when I knew there was no turning back. I very much liked working with v0.6 and the documentation served as a solid foundation for me to enhance my understanding of the underlying technologies. Now, with v1.0, I am continuing to expand my skillset.

At the Boston Fed, we’re getting our hands dirty experimenting with DLT to determine applicability, potential benefits, and risks. What better way to learn about the technology than exploring it first hand?  

What project in Hyperledger are you working on? Any new developments to share? Can you sum up your experience with Hyperledger?

The Hyperledger umbrella has so many great sub-projects – I just wish there were more hours in the day to explore them all, reminiscent of the Jakarta Apache days. I have predominantly been working with Fabric sub-umbrella Fabric Core, the Fabric Java SDK, and the Fabric Node SDK, as well as briefly looking into Hyperledger Composer, Hyperledger Blockchain Explorer, and Hyperledger Fabric-SDK-Go.

I am grateful that the documentation has been well maintained. Hyperledger’s YouTube channel has also been incredibly helpful, especially in regards to the v1.0 chaincode deployment strategy.

As Hyperledger’s incubated projects start maturing and hit 1.0s and beyond, what are the most interesting technologies, apps, or use cases coming out as a result from your perspective?

I see a lot of good implementations that don’t necessarily have a great use case, but from my perspective that is fine. Low-risk, low-use projects using DLT can help develop skills. Then, when there is a need for a mission-critical application, the learning curve isn’t so steep.

I’ve also seen many great third-party applications used in their infancy for Blockchain monitoring, streamlined Blockchain genesis, and Fabric APIs that are less cumbersome and easier to understand than some under the Hyperledger umbrella.

What is the best piece of developer advice you’ve ever received?

Don’t over-engineer to solve a problem. With the wonderful world of dynamic class loading, abstraction, aspecting, and more, it’s easy to develop an overwrought, complex solution for a simple problem.

What technology could you not live without?

If I had to limit it to one technology, I’d say software in general. I don’t know what I’d do with my life if I didn’t write software. Actually, I might be a photographer, but I probably wouldn’t get paid very well because I’m no Ansel Adams!

Hyperledger Gains 10 New Members

By | Announcements, Hyperledger Burrow, Hyperledger Cello, Hyperledger Composer, Hyperledger Explorer, Hyperledger Fabric, Hyperledger Indy, Hyperledger Iroha, Hyperledger Sawtooth

Growth in open blockchain consortium doubles over past year with more than 160 members

SAN FRANCISCO, CA – (September 26, 2017) Hyperledger, an open source collaborative effort created to advance cross-industry blockchain technologies, announced today that 10 new organizations have joined the project. As a multi-project, multi-stakeholder effort, Hyperledger incubates eight business blockchain and distributed ledger technologies including Hyperledger Fabric, Hyperledger Iroha, Hyperledger Indy, Hyperledger Burrow, Hyperledger Sawtooth, among others.

“The immense growth we’ve seen this year signifies an acceptance and understanding of Hyperledger blockchain solutions for business,” said Brian Behlendorf, Executive Director, Hyperledger. “These new diverse members have agreed to contribute their leadership and energy to the Hyperledger community. We thank them for their support and validation as we drive towards more PoCs, pilots and production uses cases of Hyperledger technologies in the enterprise.”

Hyperledger aims to enable organizations to build robust, industry-specific applications, platforms and hardware systems to support their individual business transactions by creating an enterprise grade, open source distributed ledger framework and code base. It is a global collaboration including leaders in finance, banking, IoT, supply chain, manufacturing and technology. The latest General members include: AMIHAN, ChongQin Xichain Technologies, DLT Labs, GameCredits, Gibraltar Stock Exchange (GSX), Medicalchain and ScanTrust.

Hyperledger supports an open community that values contributions and participation from various entities. As such, pre-approved non-profits, open source projects and government entities can join Hyperledger at no cost as Associate members. Several Associate members joined this month including Mercy Corps, Taiwan Fintech Association and Zhejiang University.

New member quotes:

AMIHAN

“Amihan is proud to be the first Filipino company to join Hyperledger,” said Winston Damarillo, Chairman of Amihan Global Strategies. “We believe that blockchain and smart contracts are the key to preparing Southeast Asia for the digital age, and we are committed to working with the Hyperledger community to push the limits of blockchain technology. We look forward to working with our clients – some of the largest enterprises in ASEAN – to transform finance, healthcare, retail, and customer loyalty in one of the fastest-growing regions of the world.”

DLT Labs

“At DLT Labs, our corporate purpose is to create, integrate, and support dynamic distributed ledger solutions that equip our clients with the tools to capitalize on unrealized potential within their businesses,” said Loudon Owen, Chairman and CEO of DLT Labs. “With over 30 dedicated in-house Blockchain developers and over 20 proprietary enterprise products, DLT Labs has formed globe-spanning partnerships with leading edge consultancies, manufacturers, financial institution and innovative service providers. Our global presence spans the United States, the United Kingdom, China, India, Canada and Singapore. DLT is excited at the opportunity to join Hyperledger’s nexus of leaders, creators, and dreamers, and looks forward to forming long-lasting relationships with the forefront of blockchain innovators.”

GameCredits

“We are excited to join the company of industry leaders in Hyperledger,” said Alex Migitko, COO, GameCredits. “GameCredits is focused on a unique blockchain use case, catering to the $100 billion gaming industry and its massive audience of almost every third person on earth, governed by complex relations between various stakeholders. Our solutions will be of immense interest to adjacent industries and we believe we will be able to make a unique contribution to the alliance.”

Gibraltar Stock Exchange (GSX)

“We are today at the beginning of the blockchain revolution, witnessing in real time an explosion of ideas, experiments and projects that aim to completely redesign global capital markets for the new era,” said Nick Cowan, CEO, Gibraltar Stock Exchange. “The Gibraltar Stock Exchange’s membership in Hyperledger provides us with an exciting opportunity to connect, share ideas and collaborate with like minded innovators and industry leaders, without boundaries, with the aim of building consensus for the new global framework.”

Medicalchain

“Medicalchain puts health records back into the hands of patients, and that’s not possible without the secure storage and transfer of data. Using Hyperledger, Medicalchain will allow patients to control permissions to their health records – who gets access to them, what information they get access to and for how long,” said Dr. Albeyatti, co-founder of Medicalchain. “We are thrilled to join the Hyperledger community and will continue working to bring blockchain technology to the healthcare industry.”

ScanTrust

“Today’s connected consumers are demanding more transparency and with global supply chains becoming more complex, achieving this a challenging task,” said Nathan Anderson, CEO and Co-Founder, ScanTrust. “ScanTrust secure identifiers connect physical goods to the internet for enhanced supply chain security; by adding open blockchain technology to this foundation, brands will be able to protect and track their products using mobile phone authentication. We look forward to collaborating with the Hyperledger community to develop a scalable, enterprise-grade blockchain framework.”

To see a full list of member companies, visit: https://www.hyperledger.org/about/members. If you’re interested in joining Hyperledger as a member company, please visit: https://www.hyperledger.org/about/join

About Hyperledger

Hyperledger is an open source collaborative effort created to advance cross-industry blockchain technologies. It is a global collaboration including leaders in finance, banking, Internet of Things, supply chains, manufacturing and Technology. The Linux Foundation hosts Hyperledger under the foundation. To learn more, visit: https://www.hyperledger.org/.

 

 

ABCs of Open Governance

By | Blog, Hyperledger Burrow, Hyperledger Cello, Hyperledger Chaintool, Hyperledger Composer, Hyperledger Explorer, Hyperledger Fabric, Hyperledger Indy, Hyperledger Iroha, Hyperledger Sawtooth

Today, most people understand the concept of Open Source – certainly we expect most readers of this blog understand it. View the code, use the code, copy the code, change the code, and, depending on the license, contribute back changes or not.

What many people don’t get, and something we here at Hyperledger and The Linux Foundation pride ourselves on doing well, is Open Governance.

The Linux Foundation, and all of our 60+ open source projects, are not-for-profits building the greatest shared R&D investment in history. Open Governance is central to this promise.

Open Governance means that technical decisions -– which features to add, how to add them and when, among others – for a given Open Source project or projects are made by a group of community-elected developers drawn from a pool of active participants. It is as close to the ideal of pure technical meritocracy as one can get and we strive continuously to reach that ideal.

Hyperledger recently concluded the 2017-2018 Technical Steering Committee (TSC) election, and so we thought it an opportune time to explain the ABCs of Open Governance. Please note that this is one Open Governance implementation and clearly not the only way to do it, but rather one proven and effective way.

What does the Hyperledger TSC do?

The TSC charter spells out the group’s responsibilities.

The TL;DR is that the TSC is the ultimate authority on technical decisions. This includes which new projects are admitted to Hyperledger , which current projects graduate from Incubation to Active , and the rules by which each Hyperledger project will operate.

Participation in Hyperledger through becoming a Contributor and/or Maintainer is open to anyone.
Hyperledger Charter Section 4C

As a developer or maintainer, this translates into one thing: trust. You know how decisions will be made and the process by which people will be selected to make these decisions. Hyperledger is vendor-neutral and technical contributions are based on meritocracy. We will always remain immune to the commercial interests of any single company.

The TSC election process consists of three simple steps:

  1. Identification of eligible participants
  2. Nominations
  3. Voting

Who is really eligible to be on the TSC?

The charter spells out that the TSC voting members shall consist of eleven (11) elected Contributors or Maintainers chosen by the Active Contributors.

So, how do you determine an active contributor, you may ask? As part of the current election, every project maintainer and Working Group leader was asked to provide a list of all the people that have contributed to their work in the past year. In addition, a review of all code and other contributions was conducted.

This year, 424 active contributors were identified as eligible to participate in the TSC election process.

Bring It (your nomination that is)

The Linux Foundation maintains an expert staff with decades of combined experience managing the operations of large scale, Openly Governed Open Source projects.

For Hyperledger, the Sr. Program Manager Todd Benzies ensures the trains run on time.

Below is Todd’s email calling for TSC nominations:

This nominating process produced 32 candidates for the 11 TSC spots. These 32 come from 20 different organizations, across a spectrum of industries, from technology vendors to foundations to end users from a variety of industries. They include people who work at Hyperledger members and non-members and some are standing as individuals.

A policy whose importance is hard to overstate is that anyone elected to a seat on the TSC is elected as a person unbound to the company for which they presently work. Should any TSC member during their tenure leave an employer for another, this would have zero impact on their standing as member of the Hyperledger TSC.

Cast your vote

Here is Todd’s email sent to the same list announcing the nominees and opening voting.

The arrow highlights one of the things that we’ve learned along the way as a trick to the trade of running open governance well. The voting system has to be unquestionably secure and fair (something by now truly everyone can relate to…).

We use the Condorcet Internet Voting System to safeguard the privacy of this election and voting process. CIVS can only be accessed by authorized voters, who receive a unique URL tied to their email address. Voters rank a set of possible choices and individual voter rankings are combined into an anonymous overall ranking of the choices. One vote is allowed per IP address.

Results

This process yields a fairly and openly-elected technical decision making body pulled from the community that cares about Hyperledger. We know they care not because they said so, not because the company they work for has joined Hyperledger, but because they invested their time to make contributions to Hyperledger code bases. Or, as Hyperledger Executive Director Brian Behlendorf says, “it’s a do -ocracy.”

Meet the New Hyperledger TSC (listed in alphabetical order)

Arnaud Le Hors
Baohua Yang
Binh Nguyen
Christopher Ferris
Dan Middleton
Greg Haskins
Hart Montgomery
Jonathan Levi (new)
Kelly Olson (new)
Mic Bowman
Nathan George (new)

If you’re interested in learning more about the Hyperledger TSC and its elected members, we’ll be kicking off a “Meet the TSC” blog series in the coming weeks. Be sure to look out for it!

You can plug into the community at github , Rocket.Chat the wiki or our mailing list .

Developer Showcase Series: Aram Barnett, Vergo

By | Blog, Hyperledger Composer, Hyperledger Fabric

Our Developer Showcase blog series serves to highlight the work and motivations of developers, users and researchers collaborating on Hyperledger’s incubated projects. Next up is Aram Barnett, Blockchain Engineer and Managing Partner at Vergo.

What advice would you offer other technologists or developers interested in getting started working on blockchain? 

First, identify why you need blockchain. With all the hype surrounding the technology, it’s easy to think you can capitalize on the hype by sprinkling some blockchain into your app. Without a well-defined plan on how and why you are going to apply it, you are simply wasting your time and money.

Second, I want anyone interested in the technology to commit to learning about the details surrounding the progress blockchain has made rather than just the media hype that surrounds it. According to Gartner Hype Cycle, blockchain is at the peak of the technology hype cycle, and soon blockchain will be transitioning into the “trough of disillusion” where people outside of the development community will think that all of the promises of blockchain are not possible. However, unlike many new technologies on the hype cycle, blockchain will quickly escape the trough of disillusionment and grow exponentially when businesses realize the value of private ledgers. It’s is not easy but with enough dedication and a thorough understanding of the fundamentals, a developer can contribute to the blockchain community and create world changing applications. Third, get familiar Go and Javascript.

Hyperledger Composer, the tool that we use to rapidly build and test business networks, uses Javascript to enable the creation of business actions. Once you dive in the technology, be mindful of the difference between permissioned versus non-permissioned ledgers (a.k.a. public versus private blockchains, respectively) and what they offer. We will soon be releasing our own teaching resources for developers get up to speed on Hyperledger and the best practices on developing blockchain based business networks.

Aram Barnett, Blockchain Engineer and Managing Partner, Vergo

Give a bit of background on what you’re working on, and let us know what was it that made you want to get into blockchain?

I first heard about blockchain when I purchased my first bitcoin in 2011. I was so infatuated with bitcoin I dedicated 3 years of my life to running an alternative asset management fund that exclusively traded cryptocurrencies, learning everything I could about bitcoin and blockchain. I always knew that the real value of bitcoin came from the blockchain and in 2015 I began focusing all of my efforts on developing smart contracts on ethereum and coming up with business use cases.

I am currently working on Vergo, a company I co-founded to create blockchain-based business networks for open source and enterprise use.We’re working to make existing corporations more efficient by cutting excess expense associated with business transactions. To further support this community, we are open-sourcing some of our business logic to help other developers learn about this unique technology. We believe that this technology will allow developers to create turnkey businesses in which open-source business logic is easily deployable. This will increase access to entrepreneurship around the globe and empower people to start their own businesses.

More importantly, we believe we have the ethical responsibility to help transition the world to this new era in a responsible manner in which participants understand the consequences of enhanced business network efficiency and automation. We strive to ride the new wave of technological innovation by giving equal attention to corporate efficiency and social well-being.

If you look at  the Gartner Hype Cycle, mentioned earlier, blockchain is at the peak of public hype about its potential. This new wave of technology is scary to some and at peak hype it can seem like anything is possible. I made the choice to ride the blockchain wave. Since I first got involved with bitcoin and subsequently blockchain in 2011, I knew that it would be a promising technology that needs to be developed and implemented globally. We are currently at peak hype, so public interest will decline in the next few years. However, the underlying technology will still be revolutionary and over time the corporate sector will realize how truly valuable it is to their networks.

As Hyperledger’s incubated projects start maturing and hit 1.0s and beyond, what are the most interesting technologies, apps, or use cases coming out as a result from your perspective?

The most interesting project to come out of is Hyperledger Fabric. We are excited about the progress of Fabric 1.0 and what it has to offer to large and medium enterprises. I met with the lead developers at the Hyperledger hackfest in Washington DC to learn more about Fabric and help contribute to the project. Vergo is very interested in this because we see the long-term impact that Fabric will have on how companies deploy blockchain solutions. We are very excited to be building applications and business logic on top of the Fabric ledger that these talented developers have built. We are currently discussing the possibility of cooperation between Vergo and some IBMers to display our business applications running on the IBM z mainframe. Another exciting application called Hyperledger Composer, the application we use to model, build, and test our business networks very quickly using their  business development language. After speaking with  Simon Stone, one of the maintainers of Hyperledger Composer, we are very excited for the future of Composer as a development tool and the services they plan to integrate into it.

What’s the one issue or problem you hope blockchain can solve?

Blockchain has the ability to solve a lot of problems. The ability to capture the nature of “businesses” and their “workers” and digitizing those relationships could lead to efficiency increases across almost every industry.

I think what I am most interested in, in regards to public-facing blockchain solutions, is the possibility of interoperability between chains and the assignment of an identity to every person. For instance, imagine from the very day you are born you were assigned a bank account, a verified identity and trackable health records all stored on a government ledger. From here, your financials, health records, and identity would be immutable and secure and would follow you over the course of your life. The interoperability between your identity and your financial records, for example, would verify you exist while not disclosing your personal data every time you make a transaction. By solving the problem of identity, many other possible solutions arise.

Where do you hope to see Hyperledger and/or blockchain in 5 years?

Let me answer your question with another question: Where do I not see it?

Blockchain-based business networks are inevitable. I think there will be varied solutions for individual businesses and sectors that provide accessible solutions to problems associated with the analysis of big data and efficiency of transactions. Blockchain will be easier to collect and analyze data, which will enhance our understanding of business practices and markets.

Additionally, I hope that turnkey businesses will emerge across the world using open source logic developed out of the Hyperledger framework. The ability to replicate businesses with extreme ease will increase access to opportunities for economically disadvantaged peoples. I hope that the pool of open source logic is such that it allows anyone with enough emotional intelligence and work-ethic to provide a valuable product to a customer even without understanding underlying business logic.

Hyperledger’s Monthly Technical Update

By | Blog, Hyperledger Burrow, Hyperledger Composer, Hyperledger Explorer, Hyperledger Fabric, Hyperledger Indy, Hyperledger Iroha, Hyperledger Sawtooth

As our incubated projects continue to mature, we’d like to update the community monthly on the progress we make. Below are June updates on Hyperledger projects.

Hyperledger Burrow

  • Implementation of dynamic memory on the Ethereum Virtual Machine
  • New type-safe Application Binary Interface package for translating data to Ethereum contracts into packed Ethereum bytes for transaction formulation (logical requirement for Ethereum chain; but all package implementations thus far have been GPLv3 licensed, as such in tooling code not included in Burrow; this new package will be able to go into Hyperledger Burrow under Apache license)
  • Alpha of batching client for new API with high transaction throughput (> 400 tx/s)
  • Various bug fixes
  • First prototype of Burrow EVM to run as transaction processor on Hyperledger Sawtooth Ledger

Hyperledger Cello

  • A user dashboard was added to support seeing blockchain status and chaincodes.
  • The k8s support features was started with intern students; Upgrade swarm support to latest version (17.04).
  • Refine the installation scripts to support multi-os-distributions.
  • Fabric 1.0-* supported scripts was added.

Hyperledger Composer

  • We completed all rebranding activities as part of the move to Hyperledger – we moved to the Hyperledger Docker Hub organization, and renamed the Yeoman generator module.
  • We added support for modelling and publishing events from a transaction processor function, allowing client applications and existing systems to respond to events from a deployed business network.
  • We made extensive changes to our new user and getting started documentation, including reworked installation guides and tutorials which are available in the docs: https://hyperledger.github.io/composer/introduction/introduction.html
  • We delivered a set of nodes for Node-RED which allow developers to easily build outbound and inbound integration between a deployed business network and external system using IoT/MQTT, WebSockets, TCP, etc.
  • We added experimental support for invoking external HTTP APIs from within a transaction processor function, allowing external data such as share prices to be used within business logic.
  • We are currently focusing on delivering Hyperledger Fabric v1.0 beta support, complex query support (by exploiting CouchDB), and a new vehicle lifecycle demo that shows off the power of Composer.

Hyperledger Explorer

  • No major updates to report this month.

Hyperledger Fabric

  • Hyperledger Fabric v1.0.0-beta was released, and the maintainers plan on weekly releases until we have a demonstrably stable release candidate. We hope to be able to release in late July if all goes well.
  • The project’s engineers have significantly increased test coverage (+82%) and reduced its open defect count (~130 -> 22) since the 1.0.0-alpha2 release. It has been encouraging to see the diversity of contributions. It the past month alone, we have had contributions from 73 individuals representing 12 companies (including IBM) and 12 unaffiliated individuals.
  • The project is seeing a steadily increasing stream of downloads of the milestone releases with global coverage (US, Brazil, China, India, UK, Germany, France, Croatia, Russia, Japan, Indonesia, Australia and even Pakistan). There is an abundance of interest in China, India and Japan, nearly rivaling the US.
  • The remaining focus is on improving the documentation, continuing to test and fix bugs, and complete the various license, crypto-export and security scans.

Hyperledger Indy

  • No major updates to report this month.

Hyperledger Iroha

  • No major updates to report this month.

Hyperledger Sawtooth

  • Graduated to Active status! 
  • Project page new and improved, now with demo networks: https://www.hyperledger.org/projects/sawtooth
  • Collaborating with Hyperledger Burrow to integrate EVM with Sawtooth.
  • Added “State Delta Subscriptions” for pub/sub feature
  • Added Supply Chain Transaction Family
  • Providing Hyperledger Sawtooth features for Open Music Initiative Summer Lab.
  • Completed Linux Foundation Core Infrastructure Initiative badge requirements.

That’s it for the updates! We encourage developers to join our efforts on these projects. You can plug into the Hyperledger community at github, Rocket.Chat the wiki or our mailing list. You can also follow Hyperledger on Twitter or email us with any questions: [email protected].

Happy coding!

 

(6.27.17) InfoQ: Building a Blockchain PoC in Ten Minutes Using Hyperledger Composer

By | Hyperledger Composer, News

People generally first hear about blockchain through cryptocurrencies such as Bitcoin, the peer-to-peer payment system which is largely unregulated and resistant to single points of control. In recent years however, blockchain – the distributed ledger technology that underpins Bitcoin – has been increasingly adopted by businesses for a wider range of uses beyond digital currencies. In this article, I will take you through what businesses look for when considering blockchain’s role in their organization and how the Linux Foundation’s Hyperledger Composer can help application developers easily create compelling blockchain solutions for the enterprise.

More here.

Consensus 2017 is a Wrap!

By | Events, Finance, Healthcare, Hyperledger Burrow, Hyperledger Cello, Hyperledger Composer, Hyperledger Explorer, Hyperledger Fabric, Hyperledger Indy, Hyperledger Iroha, Hyperledger Sawtooth

The Hyperledger team (and 40 of our members!) spent a good amount of time in New York for CoinDesk’s annual Consensus conference last week. It was a great event with tons of excitement and enthusiasm around blockchain and its many applications. Attendees were from all walks of life – from developers to architects to financial services professionals to healthcare specialists to investors – all trying to better understand the best and most practical use cases of the technology.
The event kicked off the weekend before with the Building Blocks Hackathon at 30 Rockefeller where many of the world’s top blockchain developers vied to build the next killer smart contract app. Participants could build on top of any blockchain protocol: bitcoin, Ethereum, Hyperledger or otherwise. And through various sponsor challenges, they were encouraged to leverage the software and support made available by our world-class mentors in order to deliver projects.

Hyperledger was a sponsor of the event. The Hashed Health development team ended up winning the Hyperledger challenge, which was to create a game using any of the Hyperledger frameworks

(Winning team of the Hyperledger hackathon challenge and Hyperledger Executive Director, Brian Behlendorf)

Jonathan Levi, an active Hyperledger community member and the founder of HACERA, won 2 hackathon challenges using Hyperledger technology. They won the Enterprise Ethereum Alliance challenge and they were one of the winners of the Microsoft challenge. They called their solution Dutchess – a secure decentralized Chess on the blockchain that allows players to use ETH to pay for an unfair advantage in a sealed-bid Dutch auction. The entry highlighted Jonathan’s and HACERA’s approach of integrating multiple permissioned & public chains.

Dutchess incorporated:

  • Public Ethereum accounts used to transfer money to a sealed-bid Dutch auction
  • Confidential transactions using Solidity on Quorum, deployed on Microsoft Azure
  • A permissioned and public identity chain (Sovrin) for registering identity tokens
  • Hyperledger Indy for implementing secure verifiable claims
  • Hyperledger Sawtooth for transaction processing and validation

The result was a mini HACERA-like workflow that provided secure, auditable, privacy preserving, that prevents impersonation, relying on self-sovereign identity and offers a non-repudiation guarantee – with a playable fun game of Chess on a blockchain.

Early Monday, the Hyperledger team then set up shop on the 6th floor of the Marriott Marquis in Times Square. Crowds of attendees stopped by each day to learn more about the technology.  

 

At the booth several member companies gave demos on different Hyperledger projects including Hyperledger Fabric and Hyperledger Iroha. Cloudsoft demonstrated Deploying Hyperledger Fabric on Kubernetes with Cloudsoft AMP. IBM showed Connect a Cloud, connecting organizations together on Hyperledger Fabric using hosted cloud providers of choice. Soramitsu ran a KYC/user identity demo of Hyperledger Iroha/Android app and video, and Byacco, a local digital currency currently in use at University of Aizu in Fukushima, Japan. IntellectEU together with their customer Telindus (Proximus Group) explained streamlined asset transactions through reconciliation, matching and resolution among multiple parties.

Hyperledger also hosted a Roundtable on Monday on its distributed ledger technologies, Hyperledger Sawtooth and Hyperledger Iroha, each technology had end users speak to their different use cases. Kelly Olsen from Intel spoke to Sawtooth and his user, Pokitdok CTO, Ted Tanner weighed in on how they are utilizing Sawtooth in their healthcare blockchain solution. Makoto Takemiya, CEO, co-founder, Soramitsu discussed Hyperledger Iroha as a blockchain framework for mobile applications and Soichiro Takagi, from the Center for Global Communications (GLOCOM), International University of Japan shared his experience with the technology.

(Hyperledger roundtable participants: Makoto Takemiya, Soichiro Takagi, Kelly Olsen & Ted Tanner)

In addition to the robust line-up of Hyperledger activities in the main Consensus program and on the show floor, Hyperledger hosted a series of talks that ran all day Monday and Tuesday in the Hyperledger Mini Summit room. Attendees interested in how to best collaborate and get involved in the Hyperledger initiatives and learn where they can provide the most value had their bases covered in Monday’s “Meet the Hyperledger community” sessions. Speakers included the new technical staff, and diverse representation from the Technical Steering and Marketing committees, Governing Board, Identity Working Group and our fearless leader, Brian Behlendorf, Hyperledger’s executive director.

In Tuesday’s Hyperledger Mini Summit sessions, members dove a bit deeper into the impact of blockchain technologies on their businesses with field reports on how they are using Hyperledger to solve their business objectives. Attendees heard technical insights from Norbloc on the KYC process, IntellectEU together with their customer Telindus (Proximus Group) on streamlined asset transactions, as well as Cloudsoft on deploying and managing global blockchain networks.

Our members reinforced that blockchain is not only impacting business on a global scale, but also across industries through blockchain talks from Huawei on telecom, Daimler on the industrial enterprise, Deloitte on regulation, Energy Blockchain Labs on reversing China carbon emissions, and a panel of speakers from Accenture, BanQu and Leading Directions on blockchain for good applications.

Hyperledger hosted three different panels on Tuesday moderated by Executive Director, Brian Behlendorf and Security Maven, Dave Huseby. Those panels were “The Role of Open Source in Blockchain,” “Blockchain in the Wild, PoCs, Pilots & Deployments” and “Security, Privacy and the Enterprise Blockchain.”

(The Role of Open Source in Blockchain panelists: Dan Middleton, Intel, Casey Kuhlman, Monax, Makoto Takemiya, Soramitsu & Amber Baldet, J.P. Morgan)

 

(Blockchain in the Wild, PoCs, Pilots & Deployments panelists: Jesse Chenard, MonetaGo, Ashwin Kumar, Deutsche Boerse, Ram Komarraju, CLS Group, Corey Todaro, Hashed Health & David Treat, Accenture)

The panels were very well attended and there was great discussion on all three topics. It was most interesting that identity on the blockchain turned out to be the main topic of conversation during the security and privacy panel. And on that note, we’re excited with Hyperledger Indy just recently getting accepted into incubation under Hyperledger. Indy provides tools, libraries, and reusable components for providing digital identities rooted on blockchains.

(Security, Privacy and the Enterprise Blockchain panelists: Justin Newton, Netki, Drummond Reed, Sovrin Foundation, Jeff Garzik, Bloq & Astyanax Kanakakis, Norbloc)

We ended Consensus with a member party atop a NYC hotel rooftop. It was such a pleasure to see everyone and we are extremely grateful for all the support our community has provided around this event and overall. We’re looking forward to next year’s event – we hope that you can join us!
For those interested in additional information about Hyperledger technologies please reach out to: [email protected] As always, we encourage developers to join our efforts via GitHub, Rocket.Chat the wiki or the mailing lists. You can also follow Hyperledger on Twitter.