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Technical Ecology of Hyperledger Block chain

Hyperledger is an open source project that focuses on enterprise blockchain technology and promotes blockchain applications across industries, incubating and promoting a range of blockchain technologies, including distributed ledger framework, smart contract engine, client libraries, graphical interfaces, utility libraries and sample applications. Hyperledger encourages reuse of generic build modularity and enables rapid innovation of DLT components.

Hyperledger framework

Hyperledger Burrow is a smart contract machine that can be used. Burrow, the first of its kind released in December 2014, provides a modular blockchain client that includes a licensed intelligent contract interpreter that is partially compliant with the Ethernet Square Virtual Machine (EVM) specification.

Hyperledger Fabric serves as the basis for developing applications or solutions with a modular architecture, and Hyperledger Fabric allows components such as consensus and member services to plug and play.

Hyperledger Grid is a WebAssembly-based project for building supply chain solutions. It includes a set of libraries, data models and SDK to accelerate the development of supply chain smart contracts and client interfaces.

Hyperledger Indy is a distributed ledger designed for decentralized identities. It provides tools, libraries, and reusable components for creating and using independent digital identities based on blockchain or other distributed ledgers for interoperability.

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

Hyperledger Sawtooth is a modular platform for building, deploying and running distributed ledgers. Hyperledger Sawtooth includes a novel consistency algorithm, empirical time proof (PoET), which aims at less resource consumption and a large group of distributed verifiers.

Hyperledger tool

Hyperledger Aries is the infrastructure for point-to-point interaction based on blockchain. It provides a shared, reusable, interoperable toolkit designed for plans and solutions for creating, transferring, and storing verifiable digital credentials.

Hyperledger Caliper is a blockchain benchmark tool that allows users to use a predefined set of use cases to measure the performance of a particular blockchain implementation.

Hyperledger Cello aims to provide an on-demand "as-a-service" deployment model for blockchain ecosystems to reduce the amount of work required to create, manage, and terminate blockchain.

Hyperledger Composer is a collaboration tool for building blockchain business networks and accelerating the development of intelligent contracts and their deployment in distributed ledgers.

Hyperledger Explorer can view, invoke, deploy, or query blocks, transactions and related data, network information, chain codes and transaction series, and any other related information stored in the ledger.

Hyperledger Quilt provides interoperability between ledger systems by implementing ILP, and ILP is primarily a payment protocol designed to transfer value across distributed ledgers and non-distributed ledgers.

Hyperledger Ursa is a shared encryption library that allows people (and projects) to avoid repetitive other encryption work and wants to improve the security of the process.

The current mainstream framework of Hyperledger: Hyperledger Fabric,Hyperledger Sawtooth,Hyperledger Indy

At present, the best Hyperledger application is Hyperledger Fabric, the alliance chain solution of major enterprise applications, and there are a large number of meetup each time. Domestic Ali, Baidu, JD.com, Huawei also draw lessons from its technical architecture, and develop well in China.

At the beginning, Hyperledger Sawtooth is open source by intel and has hardware genes. It is mainly used in the blockchain solution of the Internet of things (IoT). There are use cases abroad, but there are few domestic use cases.

Hyperledger Indy focuses on digital identity, so it is a block chain solution for digital identity, which is used to solve the problem of decentralized identity management, and it is worth trying to avoid relying on centralized identity services.

Hyperledger current mainstream tool: Hyperledger Composer,Hyperledger Caliper,Hyperledger Explorer,Hyperledger Cello

Hyperledger Composer is based on the infrastructure of super-ledger systems (such as IBM's Fabric, Intel's Sawtooth Lake and Iroha), which allows users to build blockchain business networks more easily and quickly. Enables architects and developers to quickly create "full stack" blockchain solutions. That is, the business logic running on the blockchain, exposing the blockchain logic to the REST API of Web or mobile applications, and integrating the blockchain with the existing enterprise record system.

Hyperledger Caliper is a performance benchmark framework contributed by Huawei to Hyperledger, which allows users to test different ledger solutions with predefined use cases and get a set of performance test results. Caliper can install smart contracts, invoke contracts, and query the status of various distributed books to better evaluate their effectiveness. Perform stress tests on the blockchain supported in a controlled environment, and generate relevant results, including transaction success rate, number of transactions per second, transaction settlement time, and resource consumption of all operations (such as CPU and memory). Currently, blockchain ledger: fabric, sawtooth, Iroha are supported.

The main purpose of Hyperledger Explorer is to build a visual environment for the block chain network of Hyperledger. You can view the information in the network through the browser, including network topology, block information, chain code information and so on. Fabric and cello are now supported.

Hyperledger Cello is an open source tool for Hyperledger blockchain that is platform (BaaS) service, which supports customizable blockchain, such as Hyperledger fabric, which can manage a blockchain network resource in bare metal, virtual cloud (such as virtual machine, vsphere Clouds, etc.), or container cluster (such as Docker, Swarm, Kubernates, etc.), and can check system status, adjust the number of blockchain, expand resources and other functions from dashboard.

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