Hyperledger incubates and promotes a range of business blockchain technologies, including distributed ledger frameworks, smart contract engines, client libraries, graphical interfaces, utility libraries and sample applications. The Hyperledger greenhouse strategy encourages the re-use of common building blocks and enables rapid innovation of DLT components. 

Distributed Ledgers

Hyperledger Besu is an Ethereum client designed to be enterprise-friendly for both public and private permissioned network use cases. . It can also be run on test networks such as Rinkeby, Ropsten, and Görli. Hyperledger Besu includes several consensus algorithms including PoW, and PoA (IBFT, IBFT 2.0, Etherhash, and Clique). Its comprehensive permissioning schemes are designed specifically for use in a consortium environment.

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Hyperledger Burrow is a complete single-binary blockchain distribution focussed on simplicity, speed, and developer ergonomics. It supports both EVM and WASM based smart contracts and uses BFT consensus via the Tendermint algorithm. It has a sophisticated event system and can maintain a relational database mapping of on-chain data. Governance and permissioning is built in and can be amended by on-chain proposal transactions. It is optimised for public permissioned proof-of-stake use cases but can also be used for private/consortium networks.

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Hyperledger Fabric is intended as a foundation for developing applications or solutions with a modular architecture. Hyperledger Fabric allows components, such as consensus and membership services, to be plug-and-play. Its modular and versatile design satisfies a broad range of industry use cases. It offers a unique approach to consensus that enables performance at scale while preserving privacy.

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Hyperledger Indy Logo

Hyperledger Indy provides tools, libraries, and reusable components for providing digital identities rooted on blockchains or other distributed ledgers so that they are interoperable across administrative domains, applications, and any other silo. Indy is interoperable with other blockchains or can be used standalone powering the decentralization of identity.

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Hyperledger Iroha Logo

Hyperledger Iroha is an easy to use, modular distributed blockchain platform with its own unique consensus and ordering service algorithms, rich role-based permission model and multi-signature support.

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Hyperledger Sawtooth offers a flexible and modular architecture separates the core system from the application domain, so smart contracts can specify the business rules for applications without needing to know the underlying design of the core system. Hyperledger Sawtooth supports a variety of consensus algorithms, including Practical Byzantine Fault Tolerance (PBFT) and Proof of Elapsed Time (PoET)

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Libraries

Hyperledger Aries provides a shared, reusable, interoperable tool kit designed for initiatives and solutions focused on creating, transmitting and storing verifiable digital credentials. It is infrastructure for blockchain-rooted, peer-to-peer interactions. This project consumes the cryptographic support provided by Hyperledger Ursa, to provide secure secret management and decentralized key management functionality.

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Hyperledger Quilt is a Java implementation of the Interledger protocol, enabling payments across any payment network — fiat or crypto. Quilt provides an implementation of all core primitives required for sending and receiving payments in a ledger-agnostic manner, allowing developers to write application payments logic once while gaining access to any other payment system that is Interledger-enabled.

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Hyperledger Transact aims to reduce the development effort in writing distributed ledger software by providing a standard interface for executing smart contracts that is separate from the distributed ledger implementation. Hyperledger Transact takes an extensible approach to implementing new smart contract languages called “smart contract engines,” that implement a virtual machine or interpreter that processes smart contracts.

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Hyperledger Ursa is a shared cryptographic library, it enables implementations to avoid duplicating other cryptographic work and hopefully increase security in the process. The library is an opt-in repository (for Hyperledger and non Hyperledger projects) to place and use crypto. Hyperledger Ursa consists of sub-projects, which are cohesive implementations of cryptographic code or interfaces to cryptographic code.

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Tools

Hyperledger Avalon is a ledger independent implementation of the Trusted Compute Specifications published by the Enterprise Ethereum Alliance. It aims to enable the secure movement of blockchain processing off the main chain to dedicated computing resources. Avalon is designed to help developers gain the benefits of computational trust and mitigate its drawbacks.

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Hyperledger Caliper is a blockchain benchmark tool, which allows users to measure the performance of a specific blockchain implementation with a set of predefined use cases.

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Hyperledger Cello aims to bring the on-demand “as-a-service” deployment model to the blockchain ecosystem to reduce the effort required for creating, managing and terminating blockchains.

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Hyperledger Explorer can view, invoke, deploy or query blocks, transactions and associated data, network information, chain codes and transaction families, as well as any other relevant information stored in the ledger.

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Domain-Specific

Hyperledger Grid intends to provide reference implementations of supply chain-centric data types, data models, and smart contract based business logic – all anchored on existing, open standards and industry best practices. It showcases in authentic and practical ways how to combine components from the Hyperledger stack into a single, effective business solution.

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Significant Open Source software projects must offer developers and end users more than a simple repo, mailing list, and website. Hyperledger, a Linux Foundation Project, offers maintainers the following benefits:

Foundation

As a Linux Foundation project, Hyperledger provides maintainers and their communities direct access to one of the deepest open source brain trusts in the world to help with everything from licensing to governance to release management to ecosystem development. In other words, we let you focus on developing the technology, confident that the legal, technical and organizational infrastructure your project needs for the long run is in place.

Staff

  • Hyperledger leaders bring decades of experience developing and growing transformative open source infrastructure software
  • You and your community will have access to dedicated PR, events and marketing resources to reach the audiences that matter (developers, end users, members) with the right messages. You will be able to plug into our web site and blog, which receive nearly 50,000 unique visitors per month as well as other high-impact promotional programs.

Events

  • Hyperledger has an extremely active industry conference calendar and project leaders are encouraged to participate.
  • So far, Hyperledger has hosted 8 hackfests, averaging 150 attendees – this is a great way to tap into the existing Hyperledger developer community to improve your project and reach new developers.
  • Hyperledger is also active with its own and other hack-a-thon competitions to draw developer attention to our projects.