All Posts By

Santierra Hutson

(4.16.2019) Forbes: Blockchain 50: Billion Dollar Babies

By | Uncategorized

Cryptocurrencies may be in the depths of winter, but it’s early spring for new business applications using the technology underlying bitcoin. Take the case of financial record keeping behemoth Depository Trust & Clearing Corp, otherwise known as “DTCC.” It’s responsible for keeping the books on 90 million transactions a day, representing most of the world’s $48 trillion in securities —from stocks and bonds to mutual funds and derivatives.

Read the full article here.

(4.4.2019) Coin Desk: Digital Asset Goes Open Source as Firm Eyes Closer Ties With Hyperledger

By | News

Blockchain startup Digital Asset is open sourcing its Digital Asset Modelling Language (DAML), the beating heart of projects like the partial re-plumbing of the Australian Securities Exchange (ASX).

Announced Thursday, the move sees DA making DAML freely available – opening the door to its source code, its runtime system, and the software development kit (SDK), all under an Apache 2.0 license.

Read the full article here.

Introducing the Hyperledger Smart Contract Working Group

By | Blog

Welcome to the Hyperledger Smart Contract Working Group!

The Smart Contracts WG will define concepts regarding smart contracts and produce materials to describe the various aspects and meanings, trying to come up to standards or best practices. The audience for smart contracts is large and spans from researchers, developers, businessmen, decision makers, policy makers, law makers, software users, citizens to governments, banks, financial institutions, insurance providers, etc.

The Smart Contract WG will have two main areas of focus with underlying topics of interest for each.

Technology-oriented focus:

  • Models of and mechanism for computation
  • Formal guarantees on outputs of smart contracts
  • Smart contract packaging, code reuse, and dependency auditing
  • Generation of smart contracts from existing artifacts (natural language, business process, state machines, non smart-contract code)
  • Data structures and state
  • Privacy
  • Tooling and compilers for existing virtual machines
  • Design Patterns for Smart Contracts
  • Upgradeability of smart contracts

Law-oriented focus:

  • Smart contracts as representatives of obligations and fulfillment
  • Smart contracts law enforcement cascading actions

Participation is open to everyone in the community. The WG has an open email list, a chat  channel, and a wiki page. Meeting details, meeting notes, and documentation are accessible to everyone in the community. The following resources are available:

If you’re interested in joining, please subscribe to the mailing list and join the Chat channel where meeting details will be announced. Hyperledger has several other very active community Working Groups, learn about all of them here. You also can find a list of other community meetings on the Hyperledger Community calendar.

(1.17.2019) Bitcoin Exchange Guide: Barclays and Clearmatics Invite Coders to Increase Connection Between Enterprise Blockchains

By | Hyperledger Fabric, News

Two firms, the recognized bank Barclays and the U.K.-based startup Clearmatics are calling coders to connect Ethereum with enterprise-blockchains, including Hyperledger Fabric. Although blockchain technology has expanded all over the world, there are still some operability issues that must be solved and enhanced in the future.

View the full article here.

Introducing Hyperledger Fabric 1.4 LTS!

By | Blog, Hyperledger Fabric

The pace of blockchain development and deployment is accelerating. Fortunately, so too is the scale and maturity of the community and technology at the core of Hyperledger Fabric. With an eye towards the growing rollout of production Fabric networks, we are pleased to introduce Fabric v1.4 LTS, our first long term support release.

The Fabric developers have been working with network operators and application developers to deliver v1.4 with a focus on production operations and developer ease of use. Key new production-focused features of Fabric fall into four key buckets:

  • Serviceability and Operations: As more Hyperledger Fabric networks get deployed and enter a production state, serviceability and operational aspects are critical. Fabric v1.4 takes a giant leap forward with logging improvements, health checks, and operational metrics. Along with a focus on stability and fixes, Fabric v1.4 is the recommended release for production operations. Future fixes will be delivered on the v1.4.x stream, while new features are being developed in the v2.0 stream.
  • Improved programming model for developing applications: Writing decentralized applications has just gotten easier. Programming model improvements in the Node.js SDK and Node.js chaincode makes the development of decentralized applications more intuitive, allowing you to focus on your application logic. The existing npm packages are still available for use, while the new npm packages provide a layer of abstraction to improve developer productivity and ease of use. We have also provided a comprehensive business scenario and tutorial to get you started with the new developer experience.
  • Enhanced data privacy: Data and transaction confidentiality has been a key driver for Fabric development since v1.2. With this new release, we have added two new enhancements: 1) peers for organizations that are added to private data collections can now retrieve the private data for prior transactions to which they now are entitled, and 2) automatically enforce access control within chaincode based on the client organization collection membership without having to write specific chaincode logic.
  • Hand-on tutorials: Commercially focused training to help developers move up the Fabric learning curve quickly and efficiently to speed adoption and deployment.

Complete details of the new features can be found in the What’s New documentation and release notes.

Hyperledger Fabric’s First Long Term Support Release.

As noted, Hyperledger Fabric v1.4 LTS marks our first long term support release. This is a critically important development for those beginning to deploy Hyperledger Fabric solutions into production and is a reflection of the confidence that the Fabric maintainers have in this latest release.

Our policy to date has been to provide bug fix (patch) releases for our most recent major or minor release until the next major or minor release has been published. We plan to continue this policy for subsequent releases. However, for Hyperledger Fabric v1.4 LTS, the Fabric maintainers are pledging to provide bug fixes for a period of one year from the date of release (Jan 10). This will likely result in a series of patch releases (v1.4.1, v1.4.2, …), where multiple fixes are bundled into a patch release.

If you are running with Hyperledger Fabric v1.4 LTS, you can be assured that you will be able to safely upgrade to any of the subsequent patch releases. In the advent that there is need of some upgrade process to remedy a defect, we will provide that process with the patch release.

If you’d like to join the community or learn more, you can find more information here:

Chat: #Fabric in Hyperledger Chat

Docs: Fabric 1.4 Documentation

Code: Fabric Github

Issues & Roadmap: Fabric JIRA

Website: Hyperledger Fabric Homepage

Thanks for reading about our newest Fabric release. We encourage developers to try these new features out and give us feedback!