Blog Archives – Page 3 of 68 – Hyperledger Foundation

Oct 18

Hyperledger Foundation Charter Updates: Looking to 2023 and Beyond

By Hyperledger Blog, Governance

Looking ahead to 2023 and beyond, the Hyperledger Foundation Governing Board, working with our technical community and staff, recently updated the Hyperledger Foundation charter to support our ever growing and evolving ecosystem. The charter spells out the governance for Hyperledger Foundation, which is now home to 15 projects, more than 50 labs, 13 working and special interest groups and seven regional chapters. These new updates were made as a follow-up to our change from a project to a foundation with an umbrella of projects to create the opportunity for more autonomy for technical projects and enable further growth for the community and the ecosystem.

The key changes fall into two related categories:

New Governance options for technical projects

New and existing Hyperledger projects may now opt to have their own technical governance charter. The updated charter spells out that the scope of Hyperledger Foundation includes supporting various open technical projects including open source software, open standards / specifications, open data and other open projects. These projects can either be overseen by the Technical Oversight Committee of the Hyperledger Foundation (and be known as a “TOC Project”) or establish their own technical oversight pursuant to a technical charter specific to the project (and be known as a “Supported Project”).

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Why is this an important feature to an umbrella project like the Hyperledger Foundation?
Some projects want their own formal governance and, with the foundation’s umbrella format, it makes sense to create a path for projects to formalize how to govern themselves. This may be an appealing path to both new code projects and open source projects that exist elsewhere but are interested in bringing their code and community to the world’s largest open global ecosystem for enterprise-grade blockchain technologies.
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Transition from a Technical Steering Committee (TSC) to a Technical Oversight Committee (TOC)

Reflecting the shift to a full umbrella project, the revised charter not only renames the technical governance body but also clarifies its responsibilities. The structure and elections for the TOC are also updated. Going forward, the TOC will comprise eleven individuals who are active within the scope of Hyperledger Foundation and have nominated themselves for the TOC.

During the annual elections, which kick off this week, all maintainers (or similar technical role in a supported project) who have been active in the past year will elect six individuals from among the TOC Nominees to serve as TOC voting members.

To ensure diversity and relevant expertise on the TOC, the Governing Board annually will appoint the remaining five voting members of the TOC from among the TOC Nominees. Once the TOC is selected, its members will elect a chair.

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What’s the role of the TOC in a project’s life cycle?
The TOC approves the creation of all technical projects, guides them through their life cycles, and makes sure they follow best open development and security practices. The day-to-day technical direction and roadmaps of each project are determined by its maintainers and the project’s own community.
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As we enter our 7th year under the Linux Foundation project umbrella, these changes and enhancements to our governance model is a reflection of where Hyperledger technology and our community are today. We look forward to working with our active and growing community to meet the needs of the developers and the companies and governments that rely on Hyperledger projects.

Oct 14

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Staff Corner: Thanking community members for their contributions

By Ry Jones and David Boswell, Community Architects Blog, Hyperledger Foundation Staff Corner, Hyperledger Global Forum

Our community is strong and growing thanks to hundreds of community leaders around the world. We recently got back from Hyperledger Global Forum 2022 in Dublin where the strength of our community was displayed in force. While we were there, we had the opportunity to recognize our community members in a number of fun (and hopefully meaningful) ways.

This year, on the main stage, we announced the winners of our annual Community Recognition Awards:

This year’s honorees were:

Daniel Szegö, DLT Advisor, CBDC Think Tank Budapest – Recognised for hosting the most meetups of any organizer this year and doing events in three languages, In addition, he also actively brings community members together around Hyperledger Fabric and Kubernetes projects
Josh Kneubuhl, IBM Research, IBM – Recognized for his cross project and lab collaboration with the Hyperledger Fabric community.
Arun S M, Staff Software Engineer, Walmart Global Tech India – Recognized for his active role in welcoming new community members on Discord and as one of the leaders of the Hyperledger India Chapter.
Char Howland, Software Engineer, Indicio – Recognized for her active role in the Hyperledger Aries/Identity community, including running the identity implementers calls and welcoming new members to that growing community.
Nicko Guyer, Senior Full Stack Engineer, Kaleido – Recognized for being very active on Discord and Github and very good at onboarding new people into the Hyperledger FireFly community.
Andrew Whitehead, Senior Software Architect, Portage CyberTech – Recognized for being an active Hyperledger Aries contributor who helps with onboarding new people and does a lot of work on security.
Antoine Toulme, Senior Engineering Manager, Splunk – Recognized for being extremely responsive on the Hyperledger Besu channels as well as contributing workshops and more.
Marcos Sarres, Director Executivo, GoLedger – Recognized as a co-lead our Hyperledger Brazil Chapter and organizer of many very well received meetups for the community this year.
Vipin Bharathan, Principal Consultant, dlt.nyc – Recognized for running the Identity WG, serving as the Chair of our Financial Services SIG and doing so much to welcome others into our community.
Peter Somogyvari, Software Product Architecture Manager, Accenture – Recognized for always making the time to onboard and help new community members, taking on multiple mentees through our mentorship program and so much more.

Hyperledger Foundation Executive Governing Board Chair David Treat, Executive Director Daniela Barbosa and Senior Director of Community Architects David Boswell join Community Recognition Awards recipients Marcos Sarres of GoLedger, Arun S M of Walmart Global Tech India, Vipin Bharathan of dlt.nyc, Nicko Guyer of Kaleido and Josh Kneubuhl of IBM on stage at Hyperledger Global Forum 2022 in Dublin.

Daniela Barbosa presents Community Recognition Awards to Accenute’s Peter Somogyvari and Splunk’s Antoine Toulme

Throughout the event, we were also handing out small pieces of swag to thank the community members who were there. Taking the time to travel to the event and spend multiple days meeting and talking with others is an important contribution attendees were making to the health of the Hyperledger community. We wanted to recognize them for their time, effort and commitment.

One of the items we were giving out were Hyperledger coins that said “Community Code Collaboration Contribution” on the back and had 2022 on the front. Since the event this year was being held in Dublin, we designed the coins to have the two color look of a 2 euro coin.

We started making coins to thank community members – an idea long championed by our current TOC Chair, Tracy Kuhrt – in 2021. People seemed to like them so we wanted to do it again this year. It also seems fun to have an ongoing series of coins that change each year that people can collect to show how long they’ve been active in the community. We don’t know what a 2023 coin would look like yet, so feel free to send us suggestions.

For special occasions, we’ve also engraved the coins for some of the technical leaders in the community. Check out this video of a coin being engraved by a laser for Danno Ferrin, our TOC Vice Chair:

There are many other ways to recognize people for the contributions they make – one of Ry’s personal favorites is a comment in the NTPd source code. At the Hyperledger Foundation, we’ve also issued badges, given poker chips for events and other contributions, published Developer Showcase blog posts and have made stickers and shirts.

Different ways to recognize people will be relevant for different people. Some people may want a coin or shirt and others may not. We’re interested to hear what sort of recognition is important to you so we can make sure what we do is meaningful. Please send us your thoughts (email community-architects@hyperledger.org). And, if you’d like to earn a coin, a token, a badge or anything else, get involved in the community, and we’ll be happy to thank you for your contributions.

Oct 12

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LACChain introduces permissioned public blockchain ecosystem built on Hyperledger Besu to Latin America

By Hyperledger Blog, Governance, Hyperledger Besu

Read the full case study here.

Permissionless public blockchains are accessible to anyone, but they’re often unsuitable for heavily regulated institutions, like banks or public-sector initiatives. Permissioned private blockchains offer what permissionless public ones lack, but they also cost a lot to develop and maintain, making them hard to scale. Yet blockchain remains the ideal solution for many use cases.

The Inter-American Development Bank (IDB) struggled to find the balance by using different networks for different projects. But this variety came with other issues, like compliance, technical support, and accountability. These challenges prevented IDB’s pilot projects from expanding into enterprise-level projects.

IDB Lab is the innovation laboratory for IDB. It set about finding solutions to the problems of regulatory compliance, support, and governance. As it looked into the problem, IDB Lab noticed similar struggles throughout Latin America and the Caribbean (LAC). Organizations were looking for an alternative to permissionless public and private blockchain networks to deploy their solutions.

Permissioned public networks—combining the benefits of the other blockchains without their drawbacks—seemed like the answer. Successful networks already existed in the EU, and IDB Lab thought it could develop one for LAC. In March 2019, with support from a global alliance for developing blockchain in Latin America and the Caribbean, IDB Labs funded a project to create LACChain, a permissioned public blockchain infrastructure in an effort to build a scalable and sustainable network for the LAC region…and beyond.

Now, LACChain, which is built using Hyperledger Besu as an enterprise Ethereum client, has become the world’s largest public permissioned network with 15 countries participating in the ecosystem. It has over 190 nodes and supports more than 60 projects, including 40 that impact financial and social inclusion. And there is a strategy for long-term orchestration of the network via the not-for-profit LACNet.

The Hyperledger Foundation team worked with LACChain on a case study that details the goals and approach for creating the network. The behind the scenes look at launching LACChain also delves into the technology and governance planning behind the project as well as results to date and plans for growth for this network.

Read the full case study here.

Oct 05

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Climate Action and Accounting Special Interest Group (CA2SIG) wins The Hyperledger Challenge 2022!

By Hyperledger Blog, Climate, Hyperledger Besu, Hyperledger Bevel, Hyperledger Cacti, Hyperledger Fabric, Special Interest Group

The Hyperledger Climate Action and Accounting Special Interest Group (CA2SIG) has just taken first place in the Hyperledger Challenge 2022 for its prototype for Reducing Methane Leakage and Flaring with Supply Chain Tokens.

The Hyperledger Challenge 2022 took into careful consideration the following factors:

1. Technology advancement and research objectives
2. Impact to the blockchain ecosystem
3. Value addition through social benefits
4. Process followed to build an open-source community around the proposed project
5. Activities outside the Hyperledger community to build the ecosystem
6. Bring in innovation in the marketplace
7. Headway into the community that is not represented well within the ecosystem.

This Hyperledger Challenge 2022 award follows the recent announcement of another award from IBM’s 2022 Call for Code Green Practices Accelerator, where the CA2SIG team also took first place for its prototype.

“The team would like to thank the Hyperledger Challenge 2022 team for supporting our project. These recent wins/awards provide our team with added momentum and validation for the solution we are developing and the larger problem we seek to solve. Moving forward our focus is on marketing our solution to the energy industry and helping to scale auditing services, crucial to achieving climate targets by mid century. ” – Bertrand Rioux, Director, Two Ravens Energy & Climate Consulting

This prototype, which is built using Hyperledger Besu, Hyperledger Fabric, Hyperledger Bevel and Hyperledger Cactus, represents an important step towards creating an open climate accounting system that can be used to decarbonize corporate supply chains. By building a solution that can provide a free flow of trusted environmental data, we can create a more efficient marketplace that can unlock the power of green finance, consumer demand and government regulation to work together to decarbonize corporate supply chains. `

Click the CA2SIG One-Pager to learn more. We also invite you to visit the Climate Action and Accounting Wiki or join one of our bi-monthly meetings to learn about the different opportunities to get involved!

Sep 28

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#HyperledgerIdentity round-up: A cross section of production digital identity solutions built using Hyperledger technologies

By Hyperledger Blog, Hyperledger Aries, Hyperledger Fabric, Hyperledger Indy, Hyperledger Ursa, Identity

Verifying identities and information in a digital world is critical for establishing trust. But there are issues of privacy as well as efficiency, scale and accuracy in models that rely on centralized data collectors and databases.

The adoption of a new generation of digital identity solutions that leverage decentralized technologies such as distributed ledgers and verifiable credentials is accelerating. And Hyperledger technologies are playing a major role in this transformation.

Read on for a cross section of the many Hyperledger-powered solutions that are in production now. For other examples, check out these past #HyperledgerIdentity round-ups:

IBM Digital Health Pass

IBM Digital Health Pass, built on Hyperledger Fabric, offers a multi-credential verifier that organizations can use to manage and execute their verification policies for COVID-19 and vaccination status in a way that balances the privacy of the individual with the requirements set by the organization and local health authorities. With IBM Digital Health Pass, organizations can verify multiple types of health credentials, such as Good Health Pass, IBM Digital Health Pass, Smart Health Card and EU Digital COVID Certificate. Privacy is central to the solution, where the verifier application minimizes the personal data that is ever displayed to the user through the execution of business rules and it never lets any personal data leave, or be stored in, the verifier app.

Indicio Network

The Indicio Network is a collection of four professionally-staffed, enterprise-grade public-permissioned ledgers that provide a neutral, independent, and reliable network for the exchange of verifiable credentials. MainNet, DemoNet, TestNet, and TempNet are all Hyperledger Indy-based networks with nodes operating on five continents—and a growing number of node operators. The Indicio Network is one of the networks that can support Indicio Proven, a complete suite of decentralized identity components for authenticating and sharing high value data in a privacy-preserving way using verifiable digital credentials. Built on Hyperledger Aries and Hyperledger Ursa, as well as AnonCreds and DIDComm, Proven is designed to make implementing and using these open source codebases simple, providing users with a fully-owned solution that’s easy to integrate with existing systems, to innovate on, and to scale.

IDUnion

IDUnion, the European identity verification network created as part of the “Secure Digital Identities Showcase” funding project, brings together public institutions, government agencies, private organizations, associations, educational institutions and other stakeholders from various fields to enable a fundamentally new, secure digital infrastructure for the verification of identity information. In August, 2022, IDUnion spun off Sociedad Cooperativa Europea (SCE) to operate the production network for credential verification.

The IDUnion network, which is built on Hyperledger Indy, enables the clear verification of individuals, companies and institutions while allowing people and organizations to manage their identity information by themselves and to decide when they want to share this information and with whom. It has a decentralized structure and stores no personal data – not even as a hash. In order to protect privacy right from the start, all personal data is stored on the user’s end device. Users have a choice of wallets for storing and presenting credentials to third parties as required. Credentials are issued, verified and stored using open standards to ensure interoperability. Hyperledger Aries is the framework for managing the credentials.

NHS Covid-19 Digital Staff Passport

In 2019, the NHS was preparing to pilot a digital passport project that would allow staff to carry their HR and other records as credentials on their phones as a long-term plan to make it easier to transfer from one facility to another. When the pandemic hit, this went from a pilot to a production deployment quickly. The NHS Covid-19 Digital Staff Passport rolled out in summer to support swift and efficient staff movement between NHS organizations in response to the response health emergency. The COVID-19 Digital Staff Passport provided a solid legal framework for staff to be temporarily deployed into other NHS organizations with evidence available that checks have been completed before staff move. As laid out in the pilot, the information was transferred securely by the staff member as verified credentials stored on their own smartphone, putting them in control.

This staff passport used the Sorvin Network, which is built on Hyperledger Indy, to verify the digital credentials, and the Evernym (now Avast) Connect.me digital wallet app, which is powered by Hyperledger Aries, Indy and Ursa, to enable staff to store and share their credentials.

The NHS is now gearing up to roll out the next generation of its Digital Staff Passport, which will streamline transfers and staff movements through the NHS.

OrgBook BC

OrgBook BC is a searchable public directory of organizations registered in British Columbia, Canada, provided by the BC Government’s Ministry of Citizens’ Services. OrgBook BC provides verified data, including legal names and DBA names, business numbers, BC registration status and select licensee and permits, for more than 1.4 million organizations. All of the information in the OrgBookBC is received, stored, verified and displayed using the latest digital trust technologies.

OrgBookBC uses verifiable credentials to ensure that information about organizations are digitally signed by the entity that issues it. Issuers are public sector organizations that hold information about businesses, issue licenses or permits or certify processes. That electronic signature stays with the data throughout its life in OrgBook and is validated before its is display on the website.

OrgBookBC is part of an overall commitment to digital trust technologies by the Government of British Columbia. In addition to deploying Hyperledger Aries, Indy and Ursa, the team there is leading much of the open source development for those projects. Read more on the Government of BC’s investment in verifiable credentials and digital wallet technologies here.

Digital Identity updates from Hyperledger Global Forum

At Hyperledger Global Forum 2022, there was a range of business, technical and demo sessions focused on digital identity, including:

Bringing Trustworthiness in Industrial Device Lifecycle using Verifiable Credentials – Marquart Franz & Saad Bin Shams, Siemens AG

Findy Agency — Highway to Verified Data Networks – Laura Vuorenoja & Harri Lainio, OP Financial Group

Digital Identity Using the vLEI – Christoph Schneider, Global Legal Entity Identifier Foundation (GLEIF)

Blockchain, Biometrics and Geo-Location: Lessons Learned from the Implementation of Innovative Technologies at the United Nations Joint Staff Pension Fund – Dino Cataldo Dellaccio, United Nations Joint Staff Pension Fund & Shashank Rai, United Nations International Computing Centre (UNICC)

Hosted Discussion: Rhode Island Leads on Digital Identity Solutions with Hyperledger – Liz Tanner, State of Rhode Island & Jim Mason, DTCC

Last Mile Problem in Self-Sovereign Identity – Biometric Authentification and Device Independent Wallet for Hyperledger Indy – Non Kawana & Ken Naganuma, Hitachi, Ltd.

Workshop: How To Build a Self-Sovereign Identity Agent With Hyperledger Aries Framework JavaScript – Timo Glastra & Berend Sliedrecht, ANIMO & Jakub Koci, ABSA

Join the conversation about blockchain-based identity technologies and solutions with #HyperledgerIdentity on social channels. For a hands-on introduction to the market and technologies, join the free four hour Build Your Identity Solution Using Hyperledger Aries workshop. Or, for a more business level introduction, sign up for the free Getting Started with Self-Sovereign Identity (LFS178x) online course from Linux Foundation Training & Certification.

Sep 28

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Get started with Hyperledger Aries: Accelerate your decentralized identity skills with a free instructor-led Workshop

By Hyperledger Blog, Hyperledger Aries, Identity

Hyperledger Aries is one of the fastest growing open source projects propelling the advancement and adoption of decentralized identity and verifiable credentials out there today. More companies than ever are deploying Aries-based agents that allow for trusted online peer-to-peer interactions.

Hyperledger Foundation has partnered with member company Indicio and its team of deeply experienced developers and architects to develop a free workshop to help developers and architects gain a deeper understanding of decentralized identity and become familiar with the technologies that are made possible by using Hyperledger Aries.

This four-hour hands-on workshop provides beginner level opportunities to install and run the Hyperledger Aries components just like you would if you were making a real Aries-based application. Learn where to find the necessary Git repos and see how to use the Indy Command Line Interface (Indy CLI), and run the Aries toolbox to create and issue a verifiable credential.

This course also introduces some current projects using Hyperledger Aries to help you accelerate your understanding of decentralized identity and build the skills necessary to successfully make changes to the underlying code with hands-on guidance to develop your own projects.

About the Course

Build Your Identity Solution Using Hyperledger Aries
Thursday, November 10, 2022
8 AM to noon Pacific
Register for free

This course, “Intro to Decentralized Identity,” is part of the Hyperledger Foundation Community Workshop series. It is a four hour online course that introduces the core concepts and principles of decentralized identity. As you progress, you’ll learn how to use a Hyperledger Indy-based network, be introduced to the Indy CLI, and install and run the Hyperledger Aries toolbox to create, issue, and verify a verifiable credential.

Topics also include:

Decentralized identity concepts and principles
The verifiable credential data model
Decentralized identity ecosystem
Introduction to network tools Indyscan and SelfServe
Intro to Indy CLI and how to use the CLI to access a network
What Aries is
Install and run the Aries Toolbox
Create connections and issue a credential
How to verify a credential

Participants are encouraged to review the course prerequisites, including the installation of docker, installation of Indy-CLI, and download of important repositories. Information on prerequisites can be found here.

This course is offered by the Hyperledger Foundation for free to expand the use, contributions, and maintainer community of Hyperledger Indy and Aries. A recording of the course will be made available at the conclusion of the instructor-led event.

Registration links and further information about the prerequisites and course materials can be found at https://wiki.hyperledger.org/display/events/Build+Your+Identity+Solution+Using+Hyperledger+Aries

Sep 13

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Energy & Mines Digital Trust: The Open-Source Journey Towards a Clean, Resilient Economy

By Energy & Mines Digital Trust Blog, Climate, Hyperledger Aries, Hyperledger Indy, Identity

As the world works towards climate goals, a government project from Canada is using digital trust technology to make it easier and more secure for natural resource companies to share sustainability data.

Energy & Mines Digital Trust (EMDT) was established by the Government of British Columbia in recognition that we must do more to facilitate the transition to a clean, resilient economy. British Columbia (B.C.), Canada’s western-most province, was the first province in Canada to implement greenhouse gas emission reduction targets and mandatory sustainability reporting for major sectors of the provincial economy. As leaders in climate change legislation, B.C. is well positioned to explore cutting-edge technology in the journey towards a low-carbon economy. To improve trust, accuracy, and efficiency when sharing sustainability data, EMDT is coordinating a digital ecosystem – a network of organizations including environmental auditors, government bodies, mining and energy companies, and non-government organizations.

Improved Sustainability Reporting

Currently, reporting sustainability data can be challenging. Data is difficult to exchange internationally, and consumers cannot always access, or trust, reported data, not to mention the administrative burden.

EMDT’s digital ecosystem makes it possible to exchange sustainability information simply and securely, using digital credentials.

Digital credentials:

Can be shared quickly and are tamper-proof.
Allow companies to control their data.
Guarantee the integrity of the information.
Preserve privacy in business-to-business interactions.

Digital Trust Ecosystem: EMDT Pilot

EMDT has been testing and refining their technology and governance through multiple pilot projects to demonstrate how sustainability reporting can be made more efficient and trustworthy. Two pilot projects explore greenhouse gas emissions reporting in the mining sector and the natural gas sector. These pilots allow participants to test sharing and receiving digital credentials that include verified GHG emissions data for a specific mine site or natural gas facility.

*Because this is a pilot, the process depicted in this diagram does not satisfy or replace existing regulatory reporting obligations.

The greenhouse gas (GHG) mining pilot builds upon the existing regulatory emissions reporting process in British Columbia. PricewaterhouseCoopers (PwC), an environmental auditor, issues a digital credential to Copper Mountain Mining Company containing verified GHG data. Copper Mountain can then use the Greenhouse Gas Emissions Report Verification Credential as part of their GHG emissions report to British Columbia’s Climate Action Secretariat. Copper Mountain can use the same digital credential to complete voluntary reporting to organizations such as the Open Earth Foundation.

Increased Connections

To facilitate the broad exchange of sustainability data, EMDT used Hyperledger Indy and Hyperledger Aries to create a highly interoperable tool, called Traction. Traction is an API accelerator built on top of Hyperledger Aries Cloud Agent Python (ACA-PY). Traction streamlines the process of sending and receiving digital credentials for governments and organizations.

Hyperledger Aries makes Traction highly interoperable with the technological solutions of companies and organizations around the world. “While two wallets might be different implementations or might be written in different code, they can still exchange data because both wallets use Aries,” explains Kyle Robinson, EMDT’s Senior Strategic Advisor.

Traction makes it easier to integrate digital trust technology into existing lines of business:

API-first Architecture: Traction is designed with an API-first architecture. This RESTful API allows for integration into existing line-of-business applications already being used by organizations. The Tenant user interface is built on this API to enable adoption prior to integration and for low-use functions.
Multitenancy: ACA-Py is implemented on a cloud-based server so multiple wallets can be managed with one Traction instance.
Higher Scalability: Traction is open-source technology, encouraging collaborative refinement, faster release, and higher scalability of the technology.

Collaborative Climate Change Progress

With an increasing emphasis on responsibly sourced products, simplified methods for exchanging sustainability data ensures that B.C. natural resource providers can compete in a global market. Digital trust technology streamlines access to trustworthy sustainability data, allowing businesses, governments, and non-government organizations to work towards climate change goals more efficiently and effectively. Visit our website to learn more about Energy & Mines Digital Trust.

Sep 13

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Learn the Fundamentals of Self-Sovereign Identity in Free Online Training Course

By Hyperledger Blog, Identity

This post originally appeared on the Linux Foundation Training and Certification blog.

Our digital identities are part of who we are. Technology has become so pervasive in everyday life that individuals want and need the ability to better manage their online digital identity. Self-sovereign identity (SSI) is a concept that puts users at the center of their digital identity, giving them control over it which helps increase privacy, security and trust in a technology or organization. SSI is growing in popularity as more online websites and applications implement the practice in their user experience.

We want to make it easier for companies to implement SSI for the benefit of their users, so Linux Foundation Training & Certification has announced a new upcoming online training course, Getting Started with Self-Sovereign Identity (LFS178x). The six-to-seven hour course, which will be available to audit for free for 10 weeks on the edX learning platform, provides a solid foundation on SSI with a 360 degree overview of its evolutionary journey, key concepts, standards, technological building blocks, use cases, real-world examples and implementation considerations. Pre-enrollment is open now, with course content becoming available on October 5.

This course is designed for business and government decision makers looking to understand SSI and make decisions about it; technologists seeking to get a high level overview of SSI, and professionals wanting to understand how digital identity systems work and how SSI is making a difference. Upon completion, participants will be able to have informed business discussions around digital identity, and particularly self-sovereign identity, with a good understanding about how identity systems work and influence our lives. You will also be able to identify innovative ideas and solutions for leveraging SSI, and be better positioned for further technical learning around digital identity.

Getting Started with Self-Sovereign Identity was developed by Kaliya Young and Lucy Yang of Identity Woman, which works to bring about the creation of a layer of identity for people based on open standards. Kaliya, widely known as Identity Woman, is an expert in decentralized/self-sovereign identity who has committed her life to the development of an open standards based layer of the internet that empowers people. In 2005, Kaliya co-founded the Internet Identity Workshop (IIW) to bring together technologists who want to see decentralized identity come into being. Lucy joined the COVID Credentials Initiative (CCI) on day one and has since led its operations and communications. She played an instrumental role in taking CCI into Linux Foundation Public Health. Lucy also serves on the board of MyData Global, an award-winning international non-profit championing personal data empowerment, and co-founded the MyData Canada Hub, where she is actively involved in strategic development and operations.

Enroll today and start learning October 5 how your organization can modernize your digital identity practices.

Sep 12

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Hyperledger FireFly V1.1 Is Now Available

By Nicko Guyer, Sr. Full Stack Engineer at Kaleido and Hyperledger FireFly Community Lead Blog, Hyperledger Firefly

Before Hyperledger FireFly, blockchain developers spent a lot of time building the plumbing of their application. They built complex middleware components from scratch. Hyperledger FireFly was a sea change. The first open source Supernode, Hyperledger FireFly offers developers a complete stack to build and scale secure web3 applications.

Hyperledger FireFly accelerates development with a rich stack of native web3, B2B, and integration services. It simplifies the deployment and management of many apps via a single console, and offers a new tool to connect to the multi-chain and multi-protocol web3 world.

This is more important than ever as public and private chain use cases intermingle more and more in novel enterprise applications. That’s what makes the new release of Hyperledger FireFly exciting. Developments to the stack make it radically simple for developers to launch production-ready apps on both public and private chains and manage multiple applications from a single console with multi-tenant support, plugin flexibility, and pluggable security.

Introducing Web3 Gateway Mode

Hyperledger FireFly can now operate in two modes. The first is familiar to current users of the stack. Consortium Mode is used to build consortiums or multi-party business networks where data needs to be agreed to and shared among the group. Use cases for Consortium Mode have included healthcare and insurance consortiums, supply chain participants, financial networks, and other examples where companies come together to streamline how they do business.

This release introduces the new Web3 Gateway Mode. Gateway Mode is used when the main goal of the Supernode is to connect to a public blockchain. Where previously developers could use a public tether to access popular public chains, this new mode acts as a doorway into the full world of web3 with support for popular public chains including Ethereum, Polygon, Avalanche, Optimism, BNB Chain, Arbitrum, Moonbeam, Fantom and more.

The worlds of public and private blockchain are merging. Enterprises are eager to tap into the reach, security, and decentralization of public chains. At the same time, public chain players are looking to optimize throughput, scalability, and gas fees in ways that have long been familiar to enterprise networks. This release of Hyperledger FireFly offers a stack to build for both worlds.

Public Blockchain Support

Along with the ability to connect across public chains, Hyperledger FireFly 1.1 has new tools and support to simplify public use cases for the enterprise.

FireFly Transaction Manager, an all new EVM Connector, handles the complex concerns of public chains, including gas estimation, resubmission policies, and more.
FireFly Signer can be used for transaction signing in networks where it is necessary to separate private keys from the blockchain node.
Enhanced Gateway Support makes it easy to keep private data private, while interacting with public chains.

Hyperleger FireFly 1.1 allows developers to access both public and private chains simultaneously, while building in guardrails specific to the enterprise space, ensuring new applications meet both user and compliance requirements.

Multi-tenant Support

Hyperledger FireFly 1.1 adds namespace isolation for segregating data and operations. Inside the Supernode, each namespace is an isolated environment within a FireFly runtime. This allows independent configuration of plugin and infrastructure components, API security, identity broadcasting, on-chain data indexing, and management of how data should be shared.

Namespaces work in both modes. Consortium Namespaces can be used when multiple parties need to share on- and off-chain data and agree upon the ordering and authenticity of that data. While Web3 Gateway Namespaces are available when interacting directly with a blockchain, without assuming that the interaction needs to conform to FireFly’s multi-party system model.

A single FireFly node can run multiple namespaces in either mode at the same time. This lets developers build flows that coordinate between public chains and private consortiums. The diagram below illustrates the visibility and control available to an organization as they run multiple applications from a single console, each segregated to meet security requirements.

Multiple Instances of Plugins

With the new release, a single FireFly node can now use several instances of each type of plugin that is available. As we illustrated above, we’re connecting to multiple blockchains simultaneously, often for different use cases or goals. The ability to run different plugins in each namespace means a developer has greater agility to coordinate flows for each chain or consortium.

Pluggable API Security

The flexibility to connect to multiple applications and multiple chains is only valuable in the enterprise space if it can be matched with the appropriate security, both for the integrity of the network and for compliance standards.

With Hyperledger FireFly 1.1, API Security can be enabled at several levels. This includes on any service or on a specific namespace.

With two different modes of operation, tenant isolation, flexibility of plugins, and tailored security at any level, the ability of a developer to deploy and manage applications with the right functionality and permissioned access is greatly increased.

The Next-gen Platform

Hyperledger FireFly v1.0 was a welcomed addition to the blockchain developer’s toolkit. It brought to blockchain the convenience of a rich middleware stack common in the Web 2.0 space.

With the new release, Hyperledger FireFly is positioning enterprises to harness the benefits of both public and private blockchain technologies. It gives developers the ability to quickly launch multiple applications, tailor each to the desired business logic and security requirements—all while providing a gateway into the wider world of web3.

Hyperledger FireFly 1.1 is another step toward bringing the Enterprise closer to realizing the full potential of web3—both with permissioned chains and connections to public ecosystems. If that’s something you’re interested in, we invite you to come be part of our community. You can learn more in the FireFly docs and download the CLI on the FireFly Github. If you have any questions, find us in the FireFly channel on the Hyperledger Discord.

Sep 12

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Meet Hyperledger Solang, a portable Solidity compiler

By Sean Young, Lucas Steuernagel, Cyrill Leutwiler Blog, Hyperledger Solang

We are excited to announce that Solang has been accepted as the latest Hyperledger® project and has been renamed as Hyperledger Solang™. The project is now formally being incubated as a top-level project by the Hyperledger Foundation™, hosted by the Linux Foundation, and has support from multiple sponsors.

Solang started in the Hyperledger Labs since we always wanted to work together with other Hyperledger projects. The very first ledger we supported was Hyperledger Burrow. Being part of Hyperledger Labs was a great way to give the project more visibility and ensure we could make use of the great tooling provided by Hyperledger. After tapping into those resources, Hyperledger Solang, a tool that enables smart contract portability, is now the newest Hyperledger project.

What is Hyperledger Solang

Hyperledger Solang is a compiler for Solidity source code and targets different blockchains.

The idea for Solang arose from early work on Hyperledger Burrow. We were trying to do things with Solidity that were not possible with the existing Ethereum Solidity compiler. Since that compiler is specific for Ethereum, there was no interest in supporting features for Hyperledger Burrow. From that problem, a portable Solidity compiler that could support many blockchains was born, making it possible to have different features depending on which blockchain is being targeted.

The Solidity programming language is the most popular language for smart contracts, and there is clear interest from many blockchains to have support for it. Although some blockchains emulate an EVM environment to maintain compatibility with Solidity built with Solc, they cannot access missing features from Ethereum that an emulated EVM environment cannot provide, such as cryptographic functions, like blake2, zero-knowledge proof and the ability to call native contracts or be called by them. Hyperledger Solang offers the ability to compile Solidity to native execution environments other than the EVM, allowing the language many new possibilities and innovations.

Currently, Hyperledger Solang supports Solana and Polkadot (Substrate).

How to use Hyperledger Solang

Hyperledger Solang compiles Solidity into a native contract and a corresponding metadata file. Deploying a compiled contract needs tooling from the corresponding target blockchain.

First follow the installation guide for installing Solang: https://solang.readthedocs.io/en/latest/installing.html and then follow the steps for Solana https://solang.readthedocs.io/en/latest/targets/solana.html or Substrate https://solang.readthedocs.io/en/latest/targets/substrate.html

For Solana, we have the @solana/solidity npm package for deploying and interacting with Solang compiled contracts. To compile Solidity for Solana, use:

$ solang compile –target solana source.sol

This will produce an ABI file for each contract, and a single binary contract called `bundle.so`.

For Polkadot or Substrate, the native @polkadot/api-contract npm package can be used. The command line for compiling Solidity for Substrate is:

$ solang compile –target substrate source.sol

For each contract found in the file a `.contract` file is produced.

There are examples in the documentation and in the integration tests of how to run these contracts.

We also have a visual studio code extension, which provides real-time compiler warnings and errors as well as type information when you hover over variables and functions.

What’s next

Language support: Hyperledger Solang already supports nearly all the syntax that Ethereum Solidity 0.8 supports. There are a few minor exceptions like slices. We intend to keep up with the latest Solidity developments as they are released.

Stabilized targets: Both the Solana and Substrate targets are undergoing stabilization and are expected to be finished by the end of the year. Once this happens, we expect many more users. We are aware of blockchain development teams wanting to use Hyperledger Solang in production, which makes this point a priority.

EVM support: Hyperledger Solang used to have an ewasm target. However, since ewasm is no longer going to happen on Ethereum, this target has been dropped. In fact, we have bigger plans: we renamed most of the ewasm target to EVM, and hope to have EVM support in the future. An EVM target would be an interesting development because it would bring Solang to Ethereum and any other EVM based chain. Many projects that are already developing for Ethereum are interested in running their contracts in multiple environments, using a single tool that compiles for EVM and other blockchains. We are considering running a Hyperledger mentorship for this difficult but rewarding task next year.

Hyperledger projects: We have had conversations with Hyperledger Sawtooth, Hyperledger Fabric, and Private Data Objects, which expressed interest in having Solidity support, but there is still work to be done to implement a new target in Solang for these projects.

Where to get more information and how to get involved

Please head to the github d ocumenationpage https://github.com/hyperledger-labs/solang documentation page https://solang.readthedocs.io/en/latest/

If you want to get involved, we have a curated list of good first issues to work on in our github issue tracker: https://github.com/hyperledger/solang/labels/good%20first%20issue.

We are always available on the #solang channel on the hyperledger discord, and we run a daily discord meeting at 13:30 UTC in #solang-meetup. For more details, see the Hyperledger calendar of public meetings: https://wiki.hyperledger.org/display/HYP/Calendar+of+Public+Meetings. We look forward to welcoming you.

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