<p>Blockchain has revolutionized the way we see and do things on the internet. Many companies are switching to blockchain to increase transparency and immutability, reduce transaction costs, and eliminate the need for a middleman. A blockchain network removes the need for a centralized database because everyone in the network can see the transactions and also validate them. This creates trust and transparency between participants in the network. A lot goes into the decision to switch to the blockchain. Among the most fundamental and important considerations in selecting the right blockchain framework on which to run your enterprise.</p><p><br></p><p>There are too many blockchain development frameworks to explore in a single blog post. Instead, we’ll focus on few of the most popular and widely used frameworks in the blockchain development world:</p><h2><br></h2><h2>Ethereum</h2><p><a href="https://blog.logrocket.com/top-blockchain-development-frameworks/" rel="noopener noreferrer" target="_blank"> </a></p><p><a href="https://ethereum.org/en/" rel="noopener noreferrer" target="_blank">Ethereum</a> is the most popular and widely used blockchain development platform in the world. In fact, it is the very first blockchain development platform. Built-in 2015, it introduced a revolutionary feature known as the <a href="https://ethereum.org/en/developers/docs/smart-contracts/#:~:text=A%20%22smart%20contract%22%20is%20simply,runs%20on%20the%20Ethereum%20blockchain.&amp;text=Smart%20contracts%20are%20a%20type,network%20and%20run%20as%20programmed." rel="noopener noreferrer" target="_blank">smart contract</a>.</p><p>A smart contract is a program that contains functions and states. Each smart contract runs on a specific address in the Ethereum blockchain. Because smart contracts are an autonomous type of <a href="https://ethereum.org/en/developers/docs/accounts/" rel="noopener noreferrer" target="_blank">account on Ethereum</a>, they can <a href="https://ethereum.org/en/developers/docs/transactions/" rel="noopener noreferrer" target="_blank">send transactions</a> and also have balances.</p><p>Another awesome feature of Ethereum is the <a href="https://ethereum.org/en/developers/docs/evm/" rel="noopener noreferrer" target="_blank">Ethereum Virtual Machine (EVM)</a>. The virtual machine in EVM is a virtual computer on which Ehtereum accounts and smart contracts are run.</p><p>The EVM enables you to create decentralized apps (DApps) that run on Ethereum. The range of use cases for DApps is quickly expanding beyond the finance industry, stretching into fields as diverse as healthcare, logistics, real estate, the legal system, and many more.</p><p>Ethereum’s smart contracts are written in <a href="https://soliditylang.org/" rel="noopener noreferrer" target="_blank">Solidity</a> language. Etheruem has a <strong>permissionless</strong> ledger type and is open for public use. Its consensus mechanism is proof of work, which is known to be quite slow.</p><p>Ethereum has a cryptocurrency called Ether. Ether is used to pay for creating and initializing a transaction in the Ethereum blockchain.</p><h2>  </h2><h2>Hyper ledger Fabric</h2><p><a href="https://hyperledger-fabric.readthedocs.io/en/release-2.2/" rel="noopener noreferrer" target="_blank">Hyperledger Fabric</a> is a permissioned distributed ledger framework developed by the Hyperledger Hub. The Hyperledger Hub is a project developed by the Linux Foundation for the open development of both centralized and decentralized blockchain platforms.</p><p>Fabric is aimed at enterprises that want to use, integrate, or build blockchain-based solutions and applications.</p><p>Hyperledger Fabric is similar to Ethereum for not only its permissioned ledger type but also its modular architecture. This modularity gives Fabric a plug-and-play kind of interface where you can select your preferred services, such as the consensus algorithm, smart contracts types, etc.</p><p>Hyperledger Fabric also supports <a href="https://hyperledger-fabric.readthedocs.io/en/latest/sdk_chaincode.html" rel="noopener noreferrer" target="_blank">smart contracts</a>. Smart contracts on Fabric can be written in Go, Java, and JavaScript.</p><p>If you encounter any issues that aren’t covered by the docs, the Hyperledger Fabric team has made itself available to <a href="https://hyperledger-fabric.readthedocs.io/en/latest/questions.html" rel="noopener noreferrer" target="_blank">answer your questions</a>.</p><h2>     </h2><h2>Hyperledger Sawtooth</h2><p><a href="https://sawtooth.hyperledger.org/" rel="noopener noreferrer" target="_blank">Hyperledger Sawtooth</a> is another modular blockchain platform from the Hyperledger Hub designed for developing distributed ledger applications and networks. Hyperledger Sawtooth was launched by the Linux Foundation and is now maintained by IBM and Digital Assets.</p><p>Enterprises use Hyperledger Sawtooth to build scalable and robust systems and to deploy highly secured blockchain solutions. Just like Fabric and Ethereum, Hyperledger Sawtooth has a permissioned ledger type.</p><p>Hyperledger Sawtooth has a range of advanced features and integrations, including:</p><ul><li>An integration project called <a href="https://sawtooth.hyperledger.org/docs/seth/releases/latest/introduction.html" rel="noopener noreferrer" target="_blank">Seth</a> (Sawtooth-Ethereum), which makes it possible to deploy Etheruem smart contracts on Hyperledger Sawtooth</li><li>Parallel processing, which facilitates faster transaction processing compared to other blockchain platforms</li><li>A dynamic, undefined consensus protocol, which means you can change the consensus algorithm anytime you want</li></ul><p>Speaking of consensus algorithms, Hyperledger Sawtooth has many, including:</p><ul><li>PoET (proof of elapsed time), which relies on secure instruction execution to achieve the scaling benefits of a Nakamoto-style consensus algorithm without the power consumption drawbacks of the proof of work algorithm</li><li>PBFT (practical Byzantine fault tolerance), a voting-based algorithm that uses dynamic network membership, regular view changes, and block catch-up procedure features to vote for an agreement among the participants in the network</li><li>Raft, a consensus engine that utilizes and is based on <a href="https://raft.github.io/" rel="noopener noreferrer" target="_blank">Raft</a>. This consensus uses the logs of relatively independent subproblems to agree on a value and make a decision</li></ul><p>View Hyperledger Sawtooth source code is available on <a href="https://github.com/hyperledger/sawtooth-core" rel="noopener noreferrer" target="_blank">GitHub</a>.</p><h2>    </h2><h2>EOSIO</h2><p><a href="https://eos.io/" rel="noopener noreferrer" target="_blank">EOSIO</a> is a highly performant, open-source blockchain platform launched in 2018 by Block. one. EOSIO offers a fast, reliable, and highly secure platform for building blockchain applications.</p><p>EOSIO allows you to deploy smart contracts on its existing networks. You can also build your own EOSIO networks and deploy smart contracts on them.</p><p>EOSIO smart contracts are written in the C++ programming language. To learn how to write and deploy smart contracts on EOSIO, see the <a href="https://eos.io/" rel="noopener noreferrer" target="_blank">official docs</a>.</p><p>Though not as popular as stalwarts like Ethereum, EOSIO has some unique selling points. Developers choose EOSIO for their blockchain projects because it is:</p><ul><li>Fast and efficient</li><li>Highly configurable</li><li>Highly secure</li><li>Highly compatible</li><li><a href="https://eos.io/for-developers/" rel="noopener noreferrer" target="_blank">Developer-focused</a></li></ul><p>As a cherry on top, the EOSIO website does a great job of keeping the community abreast of the latest <a href="https://eos.io/news-insights/" rel="noopener noreferrer" target="_blank">news</a> and <a href="https://eos.io/events/" rel="noopener noreferrer" target="_blank">events</a>.</p><h2>    </h2><h2>Corda</h2><p><a href="https://www.r3.com/corda-platform/" rel="noopener noreferrer" target="_blank">Corda</a> is an open-source blockchain platform built by the R3 Consortium in 2015. Corda was initially designed for financial institutions, but it has since been expanded to serve additional fields such as healthcare, insurance, digital assets, and finance. The next-gen blockchain framework bills itself as “the DLT platform of choice for financial services and beyond.”</p><p>Corda has a permission ledger type and supports the smart contract feature, meaning you can write and deploy smart contracts on the Corda blockchain. <a href="https://docs.r3.com/en/platform/corda/4.8/open-source/key-concepts.html" rel="noopener noreferrer" target="_blank">Corda smart contracts</a> can either be written in Java or Kotlin.</p><p>The platform has no mining feature, so part of the transactions is never seen in most nodes. In other words, Corda transactions are not open for all nodes. There are no cryptocurrencies or tokens in Corda.</p><p>Corda has a pluggable consensus, which means it has many <a href="https://docs.r3.com/en/platform/corda/4.8/open-source/key-concepts-consensus.html" rel="noopener noreferrer" target="_blank">consensus algorithms</a> to choose from.</p><p>Corda has validity consensus and uniqueness consensus:</p><ul><li>Validity consensus checks that the transaction is accepted by the contracts of every state and inputs and that the transaction has all the required signatures</li><li>Unique consensus agrees to a value if the inputs to a transaction are unique and have not been used in other transactions</li></ul><h2>  </h2><h2>Quorum</h2><p><a href="https://consensys.net/quorum/" rel="noopener noreferrer" target="_blank">Quorum</a> is an open-source blockchain platform based on Ethereum. Built around 2016, it was designed to serve the finance industry and enable enterprises to “several Ethereum for their high-value blockchain applications.”</p><p>Recently, <a href="https://www.businesswire.com/news/home/20200825005497/en/ConsenSys-Acquires-Quorum%C2%AE-Platform-from-J.P.-Morgan" rel="noopener noreferrer" target="_blank">Quorum was acquired by ConsenSys from JP Morgan</a>. Many companies trust Quorum and have adopted it in their business, including Microsft, JP Morgan, Covantis, South African Reserve Bank, SiaChain, Komgo, and more.</p><p>Quorum has support for enterprises that want to adopt the blockchain platform for their business. It has a permissioned ledger type but also allows for customizations based on the client’s need. In addition, Quorum supports both public and private networks as well as smart contracts.</p><p>Just like in Ethereum, smart contracts in Quorum are written in Solidity, making it very easy to switch from Ethereum to Quorum. The consensus algorithm of Quorum is voting-based; it agrees to a transaction and block depending on the number of votes the transaction and block have from the nodes.</p><p>For more information on how to get started using the Quorum blockchain platform, see the official <a href="https://consensys.net/quorum/developers/" rel="noopener noreferrer" target="_blank">developer docs</a>.</p><p><br></p><p>Happy Learning ...</p>

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