Blog Archives – Page 3 of 58

Sep 02

Developer showcase series: Anitha Radhakrishnan, KrypC Technologies

By Hyperledger Blog, Developer Showcase

Back to our Developer Showcase Series to learn what developers in the real world are doing with Hyperledger technologies. Next up is Anitha Radhakrishnan, Senior Software Engineer at KrypC Technologies.

Give a bit of background on what you’re working on and how you got into blockchain

I’m working on the development of several blockchain use cases and also on our product, KrypCore, which helps us to deliver various business solutions. We have delivered many supply chain, trade finance and microfinance solutions by implementing using our KrypCore.

KrypCore is a managed service where one can easily manage Hyperledger Fabric networks, chaincode and channel management (supports both 1.4 and 2.x versions).

What Hyperledger frameworks or tools are you using in your projects? Any new developments to share? Can you sum up your experience with Hyperledger?

Hyperledger Fabric is our primary DLT. We also use the Hyperledger Fabric SDK to develop our projects. We have added a DeliverWithPrivateData service in Fabric Go SDK, which delivers blocks with private data (which is available in Node SDK). We also added a function for fetching certain blocks with private data from a peer.

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

• Focusing on increasing the awareness about how the technology works, which will help to increase the adoption of blockchain technology
• Improving scalability especially for public blockchains
• Developing interoperability with a large number of blockchain networks
• Including blockchain technology in academics

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

Hyperledger Docs are a good way to learn the concepts. However, before starting to develop a use case/project, it is better to experiment with the Fabric test network available in GitHub. That is a helpful way to get a solid understanding of basic concepts.

As Hyperledger’s projects continue to mature, what do you see as the most interesting technologies, apps, or use cases coming out as a result?

Central Bank Digital Currency and crypt collectibles (NFT)

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

Corruption

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

• Broad adoption by the government for managing various registrations, managing identities and finances
• Wider blockchain education in academic

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

• Learn the basics
• Be clear about what you learn and try implementing it to understand things better
• Explore new technologies

What technology could you not live without?

Cloud computing

Aug 27

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Weekend Update: This Week’s Round-up of Remote Blockchain Learning Resources

By Hyperledger Blog, Weekend Update

Welcome to the Weekend Update. Our goal with this weekly post is to share quick updates about online education, networking and collaboration opportunities and resources for the open source enterprise blockchain community.

If you have suggestions for resources or events that we should spotlight in a future Weekend Update, let us know here using #HLWeekendUpdate.

Hyperledger’s Brian Behlendorf on DisrupTV

Hyperledger Executive Director Brian Behlendorf was a recent guest on DisrupTV, a web series focused on leadership, innovation and disruption. Catch his episode here.

Free Training Classes

It’s back to school season, so now is a great time to boost your blockchain skills with one (or more) of the five free and self-paced Hyperledger classes from Linux Foundation Training. Go here for details and to enroll.

Hyperledger Mentorship Project Reports

This week five mentees from the Hyperledger Mentorship Program wrapped up their projects and presented their work. To find out more about these projects and see the final reports and presentations, follow these links:

Blueprint-like interface for Hyperledger Iroha Special Instructions (Zoe Krucky)
Cactus-samples – Business Logic Plugins for Hyperledger Cactus (Tzu-Shen Wang)
Global Scouting of DLT / Blockchain Educational Opportunities (Amit Chaudhari)
Hyperledger Burrow and Hyperledger Iroha extend existing Solidity VM integration (Ayush Jalan)
Hyperledger Iroha and Hyperledger Cactus Integration (Han Xu)

Virtual Meetups

Thursday, September 2, at 12:30 UTC / 18:00 IST: Hyperledger India Chapter hosts “Getting started building apps on FireFly and contributing to Open Source”
Thursday, September 2, at 22:00 UTC / 19:00 BRT: Hyperledger Brazil Chapter hosts “Tecnologia Blockchain aplicada à segurança alimentar” (Portuguese)

See the full Virtual Meetup schedule here.

Aug 25

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The Giving Chain: Blockchain Powering Generosity

By MONA RASSOULI Blog

A Hyperledger social impact project under the umbrella of the Linux Foundation

Blockchain technology is a strong pillar for driving supply chains for both enterprise and nonprofit entities. For nonprofits, the difference is as critical as ensuring vital aid is delivered to an entire region or group of individuals in need. The Giving Chain, comprising three different social impact projects, is seeking to aid humanitarian crises and regional emergencies.

Through distributed ledger technology, the model becomes decentralized, allowing for all parties to be able to track the donations live in a secure, trusted, and verifiable manner. The immutability of transactions affords the entire network a tamper-proof assurance, which supplies a greater sense of ease and dignity to the nonprofit assistance schema.

In this piece, the Giving Chain would like to convey the purpose and mission statement of the project. If this cause speaks to the reader, we kindly ask for assistance in the form of donations to our GoFundMe initiative and help spreading the word.

The Giving Chain is the recipient of a Government Blockchain Association Award for Social Impact in 2020 and an honorary mention at the Big Apps Blockchain challenge.

The Giving Chain project initiatives are:

Project Princeton
Project Uttarakhand
Project Women

Each is highlighted in its own respective section below:

Project Princeton

This project is based in the tri-state area of the United States. Donations from food drives and surplus produce from Jersey farmers will be distributed to local food banks. The aim is to combat hunger locally for families and individuals in need. This urgency has been amplified due to the effects of the COVID-19 pandemic. The initiative follows the local charity giving model and has been in effect since 2019.

Project Uttarakhand

Localized to the Uttarakhand area of India, this project’s purpose is to aid local farmers who have been impacted by flooding. For farmers in this region, donations are vital as their sole livelihood has suffered.

Project Women

A women’s crisis is a humanitarian crisis. Women in India across many regions are in dire need of sanitary products. Ongoing efforts have been made in the past, but distributed ledger technology increases the assurance of women receiving the help that they need.

Technical Stack

Fundamentally the aim of the project is to transact the proof of ownership of the donations between each entity in the network. The party’s claim on the donation is verified through an NFT digital twin to declare that the resources are in their possession at that point in time.

The first two projects are donor driven, while Project Women is a recipient-driven model.

The projects are utilizing the power of Hyperledger to allow broadcasting of the transaction to the nodes in the network. Nodes may have integrations with other enterprise technology. Each node in the decentralized network will have its own identity and will be representative of a specific role. Roles in the model include donors, recipients, drivers, and NGOs at present. If you are interested in building out this technology, please go here.

Compatibility and integration research is underway for multiple Hyperledger projects. They will be explored and possibly integrated in phases as the codebase and functionality develops.

Aug 24

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Hyperledger-Powered Healthcare Solutions in Action

By Hyperledger Blog, Healthcare

While always critical, public health and healthcare have taken on added urgency in the last 18 months. Technology is a cornerstone of today’s healthcare, and blockchain adds a vital layer to the increasingly digital infrastructure in this complex market. Blockchain’s growing role ranges from managing new challenges relating to COVID-19 testing and credentials to increasing the efficiency of critical, data-intensive workflows like clinical trials or insurance claims to supporting new models that make it easier for patients to access and share critical healthcare information without sacrificing privacy.

A number of Hyperledger technologies are at work helping drive new approaches to the existing and emerging complexities of healthcare. Read on for a sampling of Hyperledger-powered applications and solutions that are in production across the industry. And join the conversation using #HyperledgerHealth on social channels.

Aruba Health App

Indicio.tech, together with SITA and the Aruba Health Department, created the Aruba Health App to make it easy for visitors to share a trusted traveler credential — based on their health status — privately and securely on their mobile device. Using the Aruba Health App, visitors to the island who have provided required health tests to the Aruba government are issued a unique trusted traveler credential, using blockchain technology. This credential then can be verified by hotels, restaurants, and entertainment venues through the unique QR code on a visitor’s mobile device without sharing any private data. The digital credential also enables the Aruba government to restrict visitors from leaving their hotel rooms until they have received a negative PCR test result. Launched initially as a trial, the Aruba Health App is built using Cardea, an open-source code base that has since been contributed to the Linux Foundation Public Health (LFPH) project. Cardea leverages Hyperledger Indy, Hyperledger Aries and Hyperledger Ursa.

MediConCen

MediConCen built a consortium system powered by Hyperledger Fabric that automates medical insurance claims without using any paper. The blockchain has been in production for two years with over 223,000 blocks written. It is a great production use case showing how blockchain technology can sharpen the efficiency of insurance companies and medical providers, while eliminating the need for reconciliation among the participants. By implementing digital signature using QR codes, the platform is scalable and can include any insurers and any medical providers in the world without concern of the integrity of medical providers and the claim data. This greatly relieves the workload of all parties involved, especially the medical staff with more urgent matters to attend to. It has over 600,000 users, who are connected to over 900 doctors. MediConCen was included in the 2021 “Forbes Asia 100 to Watch” that spotlights notable startups on the rise across the Asia-Pacific region.

U.S. HHS COVID-19 Immutable Testing Results Collections and Analysis

As COVID-19 testing ramped up in 2020, getting accurate and complete data from various testing venues on a timely basis needed for pandemic surveillance and mitigation efforts was a challenge. When the FDA started approving at-home test kits and testing moved beyond the controlled environment of medical labs to work places, colleges and universities, airports, sports venues and, eventually, at-home testing, these challenges grew, creating an urgent need to ensure the completeness, integrity, and accuracy of the reported data and the pandemic mitigation efforts that rely on it. Oracle worked with HHS to address the need for a single source of truth across multiple agencies, data integrity, immutability/tamper-evidence, and privacy/confidentiality of the test results. Using the Oracle Blockchain Platform (OBP), which is based on Hyperledger Fabric, Oracle rapidly deployed a permissioned enterprise-grade blockchain network in Oracle Government Cloud.

The solution is in production for HHS/CDC tracking of COVID-19 testing results reported by non-lab-based testing venues and testing manufacturers. It has received Conditional ATO approval from US Department of Health and Human Services (HHS) (full ATO is in process) and has over 1.5 million testing results on-chain. Learn more here: https://www.youtube.com/watch?v=foVdOfsFAeg.

XATP

Designed for licensed pharmacists in the United States to verify drugs under the Drug Supply Chain Security Act (DSCSA), XATP makes it easy to authenticate and and securely exchange information with trading partners. LedgerDomain, working with industry stakeholders including fellow Hyperledger member UCLA, developed XATP to be a new kind of lightweight Verification Router Service designed to authenticate dispenser identities and streamline verification requests. It allows pharmacists to scan a 2D barcode on any drug in the U.S. to bring essential information on expired, short dated, recalled, and counterfeit drugs. XATP, which leverages Hyperledger Fabric, is currently in production for pharmacy workgroups and is ramping up for deployments at major health centers.

Health and healthcare updates from Hyperledger Global Forum

At Hyperledger Global Forum, there was a range of business, technical and demo sessions focused on health and healthcare developments and deployments, including:

Covid Vaccine Beneficiary Identification using Verifiable Credentials – Punit Kumar & Hitarshi Buch, Wipro Technologies

Blockchain-based Decision-support and Longitudinal Data Storage, with Illustration for Diabetes Type 2 Management – Alevtina Dubovitskaya, HSLU (Lucerne University of Applied Sciences and Arts)

Bringing Trust and Privacy-Preserving Smart Contracts to Clinical Trials in Healthcare – Andrew Weiss, UMBC (in partnership with Softhread) & Bruno Vavala, Intel

Fast, Secure, and Accurate Evaluation of Prescription Drug Reimbursement Claims using Hyperledger Fabric – Alevtina Dubovitskaya, Swisscom AG

Blockchain in COVID-19 Fight – US HHS Testing Results Reporting Using Distributed Ledger – Mark Rakhmilevich & Bala Vellanki, Oracle

Ongoing activity in the space is driven by the very active Hyperledger Healthcare Special Interest Group (SIG), which unites healthcare professionals and technologists from around the world in advancing the state of the healthcare industry through the implementation of technology solutions using blockchain technologies in general, and the umbrella of Hyperledger frameworks and toolsets in specific. It includes subgroups focused on patients, payers and healthcare interoperability.

Cover image: Piqsels

Aug 20

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Weekend Update: This Week’s Round-up of Remote Blockchain Learning Resources

By Hyperledger Blog, Weekend Update

If you have suggestions for resources or events that we should spotlight in a future Weekend Update, let us know here using #HLWeekendUpdate.

Hyperledger Media and Entertainment Special Interest Group Guest Presentation: Blockchain Studies at HBCUs

Join the Media and Entertainment SIG for a guest presentation on Blockchain Studies at Historically Black Colleges and Universities (HBCUs). The speaker will be Dr. Ali Emdad, Associate Dean of the Earl G. Graves School of Business and Management and Founding Director of the Center for the Study of Blockchain and Financial Technology (The FinTech Center) at Morgan State University.

For more information on the online meeting, which is Tuesday, August 24, at 9:00 AM PDT, go here.

Virtual Blockchain Employ Job Fair

Attend this job fair to hear ConsenSys, Hyperledger, Accenture, and others discuss open positions. Join breakout tables to sit down and discuss opportunities with the top companies actively looking to hire folks for their blockchain teams. Indian Blockchain Institute (IBI), a Hyperledger Training Partner, will also be on and to talk about educational opportunities that will put you onto the blockchain career path.

For more details on the job fair, which is talking place on Tuesday, August 24, at 6:30 PM EDT, go here.

Now in Japanese: Certified Hyperledger Fabric Developer and Certified Hyperledger Fabric Administrator Exams

Linux Foundation Training is now offering both the Certified Hyperledger Fabric Developer (CHFD) and Certified Hyperledger Fabric Administrator (CHFA) exams with Japanese content and proctors.

Go here for more on CHFD-JP and here for CHFA-JP.

Linux Foundation Training Back to School Sale

Buy any of the Linux Foundations certification exams and get the companion training course for free. Use code “Free21,” and get a $575 bundle of certification and training for $375.The offer is good through August 24.

Go here for more detail.

Virtual Meetups

Tuesday, August 24, at 22:30 UTC / 18:30 EDT: Hyperledger Princeton hosts “Blockchain Employ Job Fair”
Thursday, August 26, at 10:00 UTC / 19:00 KST: Hyperledger Korea hosts “Hyperledger Meetup Korea #30 – 블록체인 지갑의 동작 방식 및 표준” (Korean)
Thursday, August 26, at 16:00 UTC / 18:00 CEST: Hyperledger Budapest hosts “Hyperledger Fabric and Monitoring”

See the full Virtual Meetup schedule here.

Aug 18

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A Message on Why Localization Matters from the New Hyperledger Japan Chapter

By Noriaki Fukuyasu Blog, Regional Chapter

Recently, we added another regional chapter of the Hyperledger community launched by Japanese community participants. Normally, open source projects emphasize the importance of “upstream” or “mainline” contributions so as to not “fork” the codes and communication.

However, with the addition of the new Hyperledger Japan Chapter, Hyperledger has now launched six regional chapters. Many community members are gathering around the regional chapters to exchange thoughts and ideas rather than gathering around the mainline mailing lists. Some people might see this as a “fork.”

But the regional chapters play very important roles in helping Hyperledger prosper all around the globe.

“Language” is a huge barrier – how can we be more inclusive to non-English speakers?

Needless to say, the unofficial official language of open source projects, including Hyperledger, is English. To participate in the upstream development, people are expected to be capable of communicating in English. As English is the standard language platform to communicate among the people from different countries and cultures regardless, this is how it should be.

But still this causes issues for non-English speakers to participate in the projects.

First of all, unless the information about the projects (web pages, blogs, news releases, etc.) are translated into the local languages, the projects remain “unknown” in the region. Normally, non-native English speakers won’t read English content day to day unless they really have to. So the projects won’t be noticed by non-English speaking people in the first place.

Even if the projects are noticed by the non-English speaking audience, the next hurdle is understanding the projects in depth. People may want to dig into such things as:

Technology in detail
Upstream development trends and directions (roadmap)
Existing use cases
Step-by-step guides of how to implement
Troubleshooting

In order for all of this information to become available in a local language, it takes a very solid local community and translation ecosystem. But we tend to face the Columbus Egg issue here because, unless the information is translated, it is extremely hard to grow a solid local community.

Above all, “people” matters most. It is important for the non-English speaking community participants to be able to ask questions to someone who can potentially help in their local language. Reading the technical documents and blogs in local languages are very essential steps to become familiar with the technology, but talking to people can strengthen the confidence in the projects and become a very big motivation to start really using and participating in the projects.

Language issues can only be solved by the regional chapters

So the biggest value of the regional chapters is to solve these problems caused by the language barrier.

At the Hyperledger Japan Chapter, we identified the “Chapter Leaders.” The chapter leaders will get together to evangelize the Hyperledger projects in Japan through events, blogs, etc., so the projects are “noticed” by the Japanese industry.

The chapter leaders are planning to bring more and more useful information about Hyperledger projects to the Japan Chapter wiki, so it will become easier for Hyperledger newbies to find out the information (technologies, use cases, etc.). Ideally, the wiki will grow to a one-stop portal where people can find anything they need.

We’ve opened up the Japanese rocket chat channel as well so people can ask questions and the chapter leaders can answer in Japanese language.

Growing a solid regional open source community is not an easy task. It takes an effort to make it happen, and the Hyperledger Japan Chapter launched to take on the challenge.

All blockchain and Hyperledger enthusiasts in Japan, please come join Hyperledger Japan Chapter! We will welcome you all!

Find us here:

Wiki: Hyperledger Japan Chapter
Rocketchat: Japanese
Meetups: Hyperledger Tokyo Meetup
Facebook: Linux Foundation Japan
Twitter: Linux Foundation Japan

「Hyperledger Japan Chapter へのご参加お待ちしてます！」

Cover image by 3D Animation Production Company from Pixabay

Aug 13

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Weekend Update: This Week’s Round-up of Remote Blockchain Learning Resources

By Hyperledger Blog, Weekend Update

If you have suggestions for resources or events that we should spotlight in a future Weekend Update, let us know here using #HLWeekendUpdate.

Hyperledger In-depth: An hour with Privici

Students need to get back to interacting with each other and faculty face to face in order to maximize their education experience; similarly, employees need to interact with each other from time to time in person to generate new ideas, form relationships and build the next best thing together. The post pandemic world will have the effects of the virus with us for a while, so how do we protect each other in a way that also respects our privacy?

In this session on “Verifiable Credentials – How to bring students and employees back to school and work while respecting their privacy in the covid era,” Mahesh Balan, CEO of Privici, will discuss how verifiable credentials can be used securely check the status of a vaccination, antibody test or virus test without having to track this in a central database. He will cover ways this can be achieved and the practical limitations and issues of trying to bring this technology to the fore for Covid mitigation. He will also demo examples, talk about the technology and standards and what the world can expect in the immediate future as well as the wide applicability of this technology as Self-Sovereign Identity becomes more prevalent in multiple domains.

Tune on Wednesday, August 18, at 10:00 AM PDT. For more information and to register, go here.

Fall Open Source mentorship projects (paid)

The Linux Foundation is accepting applications for a range of paid mentorship projects for the fall. See the line-up here.

Virtual Meetups

Thursday, August 19, at 22:00 UTC / 19:00 BRT: Hyperledger Brazil Chapter hosts “Boas Práticas para Composição de Frameworks Hyperledger Fabric em Redes Blockchain” (Portuguese)

See the full Virtual Meetup schedule here.

Aug 09

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Developer showcase series: Lucas Saldanha, ConsenSys

By Hyperledger Blog, Developer Showcase

Back to our Developer Showcase Series to learn what developers in the real world are doing with Hyperledger technologies. Next up is Lucas Saldanha, Blockchain Protocol Engineer at ConsenSys.

Give a bit of background on what you’re working on and how you got into blockchain

I’ve been working on the Ethereum protocol for almost three years. It all started when I joined ConsenSys and started contributing to the project that would become Hyperledger Besu. I didn’t have much experience with blockchain or distributed systems when I started. Still, I have met some incredible people in the blockchain space, and, with their help, I was able to learn more and be an active member of the community. At the moment my time is dedicated to working on enterprise features in Besu, like Private Transactions, Network Permissioning and more.

What Hyperledger frameworks or tools are you using in your projects? Any new developments to share? Can you sum up your experience with Hyperledger?

Regarding Hyperledger projects, my hands-on experience is limited to Besu. I haven’t had the chance to deep-dive into other Hyperledger projects yet. I am also on the Hyperledger Architecture Working Group, which has given me the opportunity to hear from other developers their experiences and learn from them.

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

I believe we are now getting into a new era for blockchain technology. It is time to take everything that we learned so far and start solving real-world problems. I predict we will see exciting projects in this coming year, and Hyperledger should keep an eye out for projects that can benefit from joining the group and help them flourish.

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

Don’t wait another day to start! Blockchain technology has the potential to change the status quo on how technology is used and affects our day-to-day life. Now more than ever, the world needs technologies that can help us.

There are many projects and a bunch of questions that need answers. The blockchain community needs all the help that we can get! Every day is a learning day when we are working with blockchain, and it is exciting to be a part of it. You don’t want to miss out!

As Hyperledger’s projects continue to mature, what do you see as the most interesting technologies, apps, or use cases coming out as a result?

I am happy with the way that Hyperledger Besu has evolved since it joined Hyperledger. Besu started as a “new kid in the block,” but now it has proved to be a reliable Ethereum client with significant adoption, both by individuals and enterprises. By following Hyperledger processes and getting an active status, we have shown the world that Besu is a serious project with great potential.

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

I would love to see blockchain being used on democratic voting systems. It would be great to have a decentralized system that could replace paper-based vote (like in the US), and centralized electronic voting systems (like in Brazil). Both methods have their issues, and, unfortunately, we haven’t found a better replacement. But there is so much at stake in an election that I believe a trustworthy blockchain-based voting system would be amazing!

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

I hope to see Hyperledger projects being the number one option for everyone when it comes to blockchain technology. I also want to see different blockchain technologies working together. From the user point of view, I would love to see more accessible blockchain technologies to the end-user, with massive adoption worldwide.

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

Be pragmatic! Find the balance between time, money and quality and remember that, at the end of the day, we implement solutions to solve real problems. Don’t neglect a solution but don’t over-engineer it either. The best developers I have ever worked with weren’t the smartest ones but the ones that knew how to share their ideas, to listen, and to compromise.

What technology could you not live without?

Well, this will probably be a bit controversial, but I’m a big fan of Java! I know it has got some problems, but it is my go-to language (probably because I have been working with it for so long that I know that I can do anything I want with it).

I would also say that my laptop is essential because it is where I can do all my coding!

Aug 06

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Weekend Update: This Week’s Round-up of Remote Blockchain Learning Resources

By Hyperledger Blog, Weekend Update

If you have suggestions for resources or events that we should spotlight in a future Weekend Update, let us know here using #HLWeekendUpdate.

Hyperledger Climate Action and Accounting Special Interest Group Guest Presentation: To Net Zero with Verifiable Credentials

Join the Climate Action and Accounting SIG for a guest presentation by Andreas Kind and Maximilian Weinhold and Florian Ansgar Jaeger from Siemens on “To Net Zero with Verifiable Credentials.” Verifiable credentials, as promoted by the W3C as well as the Hyperledger projects Indy and Aries, can give individuals control of their identity attributes in a privacy-preserving manner. Estainium, an association of manufacturers and trusted technical inspection organizations, extends the use of verifiable credentials for sharing product-level information in supply chains, specifically for letting suppliers cryptographically prove product carbon footprints (PCFs) down-stream while preserving common supply chain confidentiality assumptions. The aim of this PCF sharing infrastructure is to drive industrial production towards net zero carbon emission.

For more information on the meeting, which is Tuesday, August 10, at 8:00 AM PDT, go here.

The Giving Chain

The Giving Chain, a project under the Hyperledger Summer Mentorship Program, collects donations in local communities and transfers gifts to those in need. Decentralized tracking of donations can revolutionize charity giving, adding trust, accountability and dignity to the process.

To get involved, join the next meeting on Friday, August 13, at 12:00 pm EDT. More details are here.

The Giving Chain is also part of the LFX Crowdfunding effort. Find out more here.

Virtual Meetups

Wednesday, August 11, at 22:00 UTC / 17:00 CDT: Hyperledger Latinoamerica hosts “Haciendo que las cadenas de suministro sean seguras con blockchain”

See the full Virtual Meetup schedule here.

Jul 30

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Weekend Update: This Week’s Round-up of Remote Blockchain Learning Resources

By Hyperledger Blog, Weekend Update

If you have suggestions for resources or events that we should spotlight in a future Weekend Update, let us know here using #HLWeekendUpdate.

Hyperledger Trade Finance Special Interest Group Guest Presentation: International Trade Future Self – Digital Twin

Join the Trade Finance SIG for a guest presentation by Brendan McEnroe, CTO of Trade Window, covering Digital Twin, DID, interoperability and the challenge for eBoL.

For more information on the meeting, which is Tuesday, August 3, at 8:30 AM BST, go here.

Hyperledger In-depth: An hour with KrypC

The first Hyperledger Fabric major release since v1.0, Fabric v2.0 delivers important new features and changes for users and operators alike, including support for new application and privacy patterns, enhanced governance around smart contracts, and new options for operating nodes. Hyperledger Fabric v2.0 introduces decentralized governance for smart contracts, with a new process for installing a chaincode on your peers and starting it on a channel. The new Fabric chaincode lifecycle allows multiple organizations to come to agreement on the parameters of a chaincode, such as the chaincode endorsement policy, before it can be used to interact with the ledger.

In this discussion on “Best practices and major obstacles for upgrading to Hyperledger Fabric Version 2.2,” Chris Smith of KrypC will share his team’s experience updating their customer’s Hyperledger Fabric infrastructure to version 2.2 as well as some of the obstacles their customers faced and how KrypC navigated these obstacles to ensure a successful update.

Tune on Wednesday, August 4, at 9:00 AM PDT. For more information and to register, go here.

Video Replay: An Introduction to Minifabric, a Hyperledger Lab

The Minifabric demo by IBM’s Tong Li from a recent Hyperledger Media and Entertainment SIG meeting is now on YouTube. The video walks through how to easily setup a HyperledgerFabric blockchain network, install and upgrade chaincode, invoke transactions, inspect your ledger and change channel configurations. Watch it here.

Virtual Meetups

Thursday, August 5, at 17:00 UTC / 11:00 MDT: Hyperledger Denver hosts “Global Scouting of DLT / Blockchain Educational Opportunities”

See the full Virtual Meetup schedule here.