An Overview Of Consensus Protocols In Blockchain

What is a Blockchain Protocol

It is one of the first blockchain protocols to provide immediate transaction finality. Algorand is one of the leading blockchain ecosystem protocols that accelerates the convergence between traditional and decentralized finance by enabling the development of next-generation fintech products, exchange of value and protocols. With blockchain, digitizing assets is transparent, traceable and free of intermediaries. Users can trade, transfer and register various types of digital assets on the NEO blockchain platform. Stellar is an open blockchain network for storing and transferring money. The platform makes it possible to create, transfer and trade digital representations of all types of money – dollars, bitcoins, or anything of value. Mainly, three types of applications are built on top of the Ethereum protocol.

What is a Blockchain Protocol

This feature allows the chain to connect with other blockchain protocols. With the help of a hybrid mechanism, the formation of a multi-chain network is easily possible.


Some blockchain protocols now offer up to five protocol layers for maximum scalability. Hyperledger Fabric, for one, does not use proof-of-work or proof-of-stake.

In order for the notary service to perform its function, they must maintain the entire history of the transactions around the asset in question and have visibility to the content of each transaction under the scrutiny. ‘Don’t obsess over crypto end users, we still need developers to build the back end’. Currently, blockchain is being tested with proof on concepts in many different industries and regions around the world.

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An example of this is Marco Polo which is a banking initiative for trade finance powered by R3’s blockchain technology. The Lisk community is working on multiple proof of concept blockchain applications developed with the Lisk SDK. The modular design of the Lisk SDK enables you to realize any kind of blockchain technology use-case. Develop blockchain applications compatible with the Lisk protocol.

Permissionless blockchains are generally more secure, as the possibility of collusion by bad actors within the network is reduced. They can only authenticate a limited number of transactions in a given time. Permissioned blockchain networks, on the other hand, tend to be more efficient. As mentioned, Smart Contracts are typically not legal agreements. However, they can execute terms based on prior or separate agreements between parties. In addition, since legal agreements tend to follow a logical format such as if-this- then-that, similar to code, paper-based agreements could be replaced with computer-based programs which automatically execute the terms of a contract.

Types Of Consensus Protocols

The Enterprise Ethereum Alliance has made a chain-wide permissioning configuration and enforcement part of the 3.0 version of the standard specification. Various clients have implemented per-node permissioning rules as well as smart contract based governance flows. Quorum has recently released a beta version of a comprehensive permissioning and governance framework. First of all, they are based on UTXO instead of account state model. This in theory should make it more friendly to concurrent processing, because each transaction is supposed to use unique inputs. This should work as expected with fungible assets (cash, bond, etc.) which can be easily split into multiple parts so that each can be consumed in separate transactions being processed in parallel. But for non-fungible assets, which can not be split, any updates can only be performed one transaction at a time.

What is a Blockchain Protocol

Ethereum has been plagued by slow transaction speeds and high fees. Fees tend to rise particularly when congestion is high — a plague of popularity.


As soon as the election for the next validator begins, they can re-delegate their tokens to another validator.Chosen validators have the potential to distribute their blocking reward to their delegators. To remain compatible with Ethereum, BSC implements its staking logic on the binance chain to support the feature. It means that token delegation or bonding happens on the Binance Chain network, not on BSC. As a self-amendment cryptographic ledger, Tezos allows the evolution of blockchain instead of hard forking. Unlike Bitcoin and Ethereum, hard forks should not be a standard way to upgrade the system. It is a self-amending cryptographic ledger that can expand according to the industries’ needs without being forked from time to time. Tezos has formed a digital commonwealth, a network where all involved participants can hear their voices and have common honesty.

What is a Blockchain Protocol

When building an enterprise blockchain application, it’s important to have a comprehensive security strategy that uses cybersecurity frameworks, assurance services and best practices to reduce risks against attacks and fraud. Multiple organizations can share the responsibilities of maintaining a blockchain. These pre-selected organizations determine who may submit transactions or access the data. A consortium blockchain is ideal for business when all participants need to be permissioned and have a shared responsibility for the blockchain. In simple terms, immutable means something that cannot be changed. In case of blockchain, especially related to financial institutions, this immutability feature is a boon as it prevents fraud and data tampering.

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The objective is to support transferring assets from one blockchain system to another blockchain system. Wegner stated that “interoperability is the ability of two or more software components to cooperate despite differences in language, interface, and execution platform”. The objective of blockchain interoperability is therefore to support such cooperation among blockchain systems, despite those kinds of differences. Nosh Technologies also developed a blockchain-based multi-layered framework named SmartNoshWaste using reinforcement learning-based machine learning to reduce waste in the food supply chain. They wanted to implement a system wherein document timestamps could not be tampered with. In 1992, Haber, Stornetta, and Dave Bayer incorporated Merkle trees into the design, which improved its efficiency by allowing several document certificates to be collected into one block.

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The first block consists of a header and data that pertain to transactions taking place within a set time period. The block’s timestamp is used to help create an alphanumeric string called a hash. Like Bitcoin, Ethereum suffers from the flaw that every transaction needs to be processed by every node in the network. With Bitcoin, the size of the current blockchain rests at about 15 GB, growing by about 1 MB per hour.

As an example, if goods arrive at this customer’s warehouse by this date, release payment to the supplier. Thus, automatically by companies updating shipments and receipts Smart Contracts can automatically perform tasks.

Think of cryptocurrency as tokens issued by private entities or groups that can be used to pay for items sold by those who also operate in the blockchain network. As of May 2021, market research website CoinMarketCap listed 4,993 different publicly traded cryptocurrencies. Bitcoin is the first cryptocurrency and still the most famous example. Logistics companies use blockchain to track and trace goods What is a Blockchain Protocol as they move through the supply chain. Government central banks and the global financial community have been testing blockchain technology as a foundation for digital currency exchange. And various industries, including the legal community and entertainment, are using blockchain as the basis for smart contracts and other mechanisms for transferring and protecting intellectual property rights.

The above comparison table is based on some fundamental parameters that will help you analyze and select one platform as per your organization’s requirements. The most important fact of the blockchain protocol comparison is that it is never permanent and evolves from time to time with new upgrades and consensus mechanisms.

Author: Steve Goldstein

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