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Hyperledger101
- 2. hyperledger LEARNING OBJECTIVES • Create the logic and permissions for a car-auction on a blockchain network • Deploy your application locally • Test your application
- 3. hyperledger Open source collaborative effort to advance cross- industry blockchain technologies Hosted by The Linux Foundation, fastest-growing project in LF history Global collaboration spanning finance, banking, IoT, supply chains, healthcare, manufacturing, technology and more. INTRODUCING HYPERLEDGER 3
- 4. hyperledger HYPERLEDGER COMPOSER HYPERLEDGER FABRIC Hyperledger Composer is an extensive, open development toolset and framework to make developing blockchain applications easier Hyperledger Fabric is an open source enterprise-grade permissioned distributed ledger technology (DLT) platform, designed for use in enterprise contexts.
- 5. Hyperledger Composer Hyperledger Explorer Hyperledger Cello Tools Typically built for one framework and ported to other frameworks through common license and community approach Hyperledger Fabric Hyperledger Iroha Hyperledger Sawtooth HyperledgerCloud Foundry Node.js Open Container Initiative Hyperledger Modular Approach 5 Infrastructure Technical, Legal, Marketing, Organizational Ecosystems that accelerate open development and commercial adoption Frameworks Meaningfully differentiated approaches to business blockchain frameworks developed by a growing community of communities Hyperledger Burrow Hyperledger Indy Hyperledger Quilt Hyperledger Caliper
- 6. Hyperledger Business Blockchain Frameworks 6 ● Hyperledger Fabric: 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. ● Hyperledger Iroha: A business blockchain framework designed to be simple and easy to incorporate into infrastructural projects requiring distributed ledger technology. ● Hyperledger Sawtooth: A modular platform for building, deploying, and running distributed ledgers. Hyperledger Sawtooth includes a novel consensus algorithm, Proof of Elapsed Time (PoET), which targets large distributed validator populations with minimal resource consumption. ● Hyperledger Burrow: A permissionable smart contract machine. The first of its kind when released in December, 2014, Burrow provides a modular blockchain client with a permissioned smart contract interpreter built in part to the specification of the Ethereum Virtual Machine (EVM). ● Hyperledger Indy: 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.
- 7. 250+ Members (50+ in China) 10 Hyperledger projects 2 Production 1.0 releases 3.4M+ Lines of Code 44K+ Commits 1.4K+ Contributors 91K+ Enrolled in 1st Edx course (2k+ completed) Hosted the most popular webinar in history of The Linux Foundation collaborative projects on Hyperledger Fabric v1.0 45K+ Twitter Followers 1.5K+ Avg. monthly press mentions in 2017 HYPERLEDGER MOMENTUM
- 8. hyperledger PREREQUISITES All you need to complete the tutorial is a browser.
- 9. hyperledger MODEL FILE A model file uses Hyperledger Composer modeling language to specify the participants who will execute transactions, the assets that will move across the network, and the transactions themselves. In our model file for the car auction, the auctioneer, sellers are the participants, the vehicle and vehicle listing are the assets, and the act of bidding is the transaction.
- 10. hyperledger SCRIPT FILE The script file is created using JavaScript, to define the actual business logic and functionality of the car auction application. For the car auctioning application, the script file defines the car auctioning logic and rules, such as one bidder per participant.
- 11. hyperledger ACCESS CONTROL LIST Fabric uses access control lists (ACLs) to manage access to resources by associating a policy — which specifies a rule that evaluates to true or false, given a set of identities — with the resource. Fabric contains a number of default ACLs
- 12. hyperledger DEPLOY AND CONNECT TO AN EMPTY BUSINESS NETWORK • Go to the Hyperledger Composer Playground https://composer-playground.mybluemix.net/
- 13. hyperledger DEPLOY AND CONNECT TO AN EMPTY BUSINESS NETWORK • Go to the Hyperledger Composer Playground https://composer-playground.mybluemix.net/ • Click Let’s Blockchain!
- 14. hyperledger DEPLOY AND CONNECT TO AN EMPTY BUSINESS NETWORK • Go to the Hyperledger Composer Playground https://composer-playground.mybluemix.net/ • Click Let’s Blockchain! • Click Deploy a new business network.
- 15. hyperledger DEPLOY AND CONNECT TO AN EMPTY BUSINESS NETWORK • Go to the Hyperledger Composer Playground https://composer-playground.mybluemix.net/ • Click Let’s Blockchain! • Click Deploy a new business network. • On the page that appears, scroll down to step 2 and click car-auction network.
- 16. hyperledger DEPLOY AND CONNECT TO AN EMPTY BUSINESS NETWORK • Go to the Hyperledger Composer Playground https://composer-playground.mybluemix.net/ • Click Let’s Blockchain! • Click Deploy a new business network. • On the page that appears, scroll down to step 2 and click car-auction network. • On step one add network-admin card e.g satoshi@carauction-network
- 17. hyperledger DEPLOY AND CONNECT TO AN EMPTY BUSINESS NETWORK • Go to the Hyperledger Composer Playground https://composer-playground.mybluemix.net/ • Click Let’s Blockchain! • Click Deploy a new business network. • On the page that appears, scroll down to step 2 and click car-auction network. • On step one add network-admin card e.g satoshi@carauction-network • Click Deploy. • Click Connect now.
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- 32. hyperledger • Ensure the strength and longevity of a core technology to your business. • Publicly proclaim your leadership in the blockchain space. • Work with other blockchain leaders to develop and promote Hyperledger blockchain for business technologies. Visit hyperledger.org/about/join or email info@hyperledger.org. GET INVOLVED!
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Editor's Notes
- Blockchain essentially a database, but traditional databases have central admins, which makes using them to house transaction data involving parties that don’t trust one another problematic and expensive. So, each entity maintains their own database, resulting in duplicate data and, if there are mistakes or malicious behavior, results in expensive and time consuming disputes over what the actual state of the truth is. This is particularly true when exchanging assets. And lots of different institutions recording different assets.
- Our primary goal is to accelerate time to value, and make it easier to integrate your blockchain applications with the existing business systems. You can use Composer to rapidly develop use cases and deploy a blockchain solution in weeks rather than months. Composer allows you to model your business network and integrate existing systems and data with your blockchain applications. Fabric has a highly modular and configurable architecture, enabling innovation, versatility and optimization for a broad range of industry use cases including banking, finance, insurance, healthcare, human resources, supply chain and even digital music delivery.
- Similar to the way that The Linux Foundation takes an umbrella approach to the projects that exist under, Hyperledger also has a modular umbrella approach. At the top level, The Linux Foundation and Hyperledger provide the infrastructure for open development to occur. This includes technical, legal, marketing, and organizational aspects. Under Hyperledger’s umbrella are a number of frameworks that take different approaches to creating business blockchain tools and frameworks -- Fabric, Iroha, Sawtooth, Burrow, and Indy. Hyperledger’s umbrella also includes a number of modules that were typically built with one framework in mind, but are being expanded and ported to support other frameworks. Composer - Provides a application development environment that lets you more quickly develop and deploy your blockchain application. Hyperledger Composer allows you to model your business network and integrate existing systems and data with your blockchain applications. Explorer - provides a User Interface to explore and examine the current state of a Hyperledger blockchain. Similar to bitcoin explorers or crypto-currency explorers, information such as transaction information, network activity, recent blocks, visuals and search are available that allows for information to be quickly found. Cello - allows us to easily provision a blockchain network, check its status, and maintain the health of the network.
- Fabric was originally started with IBM and has received the lion's share of developer involvement. It has a modular architecture and is based on the Go programming language. Application developers create chaincode, which are Go scripts running inside of a docker container. Fabric utilizes the PBFT consensus algorithm. It is currently in Alpha and trending to a 1.0 release by June. Besides IBM, other contributors include Huawei, DTCC, London Stock Exchange, DAH, and a bunch of smaller startups. Iroha - Came to us from our Japanese partners. The code is tightly written C++. It uses a new, chain-based Byzantine fault tolerant consensus algorithm, called Sumeragi that is beneficial for high transaction use cases. Common use cases include deploying new currencies and sending text messages, It has mature mobile client libraries. Sawtooth - Originally an Intel project. Has a unique consensus algorithm called POET (proof of elapsed time) that uses the secure enclave on Intel chips to replicate proof of work without the power consumption. Sawtooth can support a large number of nodes. Sawtooth provides eventual consistency where its finality is in multi-hours vs. multi-seconds. Burrow - has been recently contributed to Hyperledger from Monax. Burrow brings permissioned smart contracts, and it meets the Ethereum Virtual Machine specification. Burrow uses Tendermint for its consensus mechanism. Indy - Our newest project is Indy. It is centered around digitial identitites rooted on blockchains. Indy provides first class support for verifiable claims. It utilizes zero-knowledge proofs for privacy-respecting claims exchange, portability of claims, and selective disclosure, and uses cryptographic accumulators for revocation of claims.
- In this step, you’ll create a business network card, which provides the configuration information needed to connect to a blockchain network.
- In this step, you’ll create a business network card, which provides the configuration information needed to connect to a blockchain network.
- In this step, you’ll create a business network card, which provides the configuration information needed to connect to a blockchain network.
- In this step, you’ll create a business network card, which provides the configuration information needed to connect to a blockchain network.
- In this step, you’ll create a business network card, which provides the configuration information needed to connect to a blockchain network.
- In this step, you’ll create a business network card, which provides the configuration information needed to connect to a blockchain network.