Nebulas describes itself as an autonomous metanet, which focuses on on-chain data, interactions, and collaboration. Its hyper-mapped structural metadata can reportedly handle increasingly complex on-chain data and describe these interactions. On 15 April 2019, the team released Nebulas NOVA, a blockchain network with native on-chain incentive. After Nebulas NOVA goes live, developers and users will be able to participate in the development of the Nebulas ecosystem to realize its vision  - let everyone benefit fairly from decentralized collaboration. To facilitate ecosystem development, asset management, and promote the “autonomous metanet”, the founding team of Nebulas will form the “Nebulas Community Group” together with the community. The Nebulas Community Group comprises 3 organizations - Nebulas Council, Nebulas Foundation, and Nebulas Technical Committee. These organizations will supervise each other and support the sustainable development of Nebulas.

Nebulas

GoChain

NULS

aelf

High Performance Blockchain is the first permissionless public blockchain to innovate with hardware acceleration and provably random numbers:

acceleration delivers fast, ultra low-fee, on-chain transactions

provably random numbers support 100% fairness

HPB (the coin) is used to pay transaction gas fees and to reward node operators.

Hyperblox

HyperCash

Augur

Wanchain is a distributed ledger that allows for cross-chain transactions and the interoperability of multiple chains. Although Wanchain facilitates transactions between blockchains, it is also a stand-alone blockchain that runs autonomously. The protocol acts as a distributed ledger that processes and maintains records of cross-chain transactions.

Transactions on Wanchain do not only occur between different public blockchains but between private chains as well. As an Ethereum (ETH) fork, Wanchain enjoys some of the properties of the Ethereum blockchain. The protocol securely and autonomously processes applications via smart contracts.  The use cases for Wanchain include decentralized exchanges (DEXs), lending and borrowing platforms, stablecoins, crowdfunding, multi-currency payments and settlements.

The platform is totally decentralized and requires no custodian party to manage or confirm transactions. Unlike other cross-chain systems, Wanchain does not rely on a third-party platform to authenticate transactions. The locked account mechanism is used to secure and manage accounts on the network, eliminating third-party interferences.

Wanchain

Kyber Network Crystal Legacy

WaykiChain

PERL.eco

AirSwap

Steem is a community-focused blockchain that creates an instant earning opportunity for the network’s users. The protocol is designed to provide an earning opportunity for customers based on their value to the network. It is designed to provide users with a platform where they can post curated content online, and get paid in cryptocurrency.

The protocol is a publicly available, incentivized blockchain database that allows users to interact with each other and earn in return. It leverages technologies from both social media and cryptocurrency to provide users with value. The network ensures the fair treatment of contributors by running a reward structure that reflects each user’s contribution.

Steemit is the first app that was built on the Steem blockchain, and it launched on July 4, 2016. The protocol aims to provide value for its community of users in the following ways:

To provide thoughtfully chosen news and commentaries.

Creating an opportunity to earn.

As a source that offers answers to users’ inquiries.

Offering a stable cryptocurrency pegged to the USD.

Steem

QuarkChain

Viction

Komodo

FIO Protocol

Vite has built a Directed Acyclic Graph (DAG) based smart-contract platform, with a Snapshot Chain structure to facilitate zero-fee transactions and optimize transaction speed, reliability, and security. The Snapshot Chain of Vite utilizes Hierarchical Delegated Proof of Stake (“HDPoS”) to achieve network consensus, while supernodes take only staking rewards and no transaction fees. Vite virtual machine maintains compatibility with EVM, and utilizes asynchronous smart contract language, Solidity++.

The VITE token is the currency for simple token transactions and smart-contract executions on the Vite network, with users staking VITE for transaction quota instead of consuming gas. VITE can also be used to vote for Snapshot Block Producers (aka supernodes). In addition, a VITE staker with unused transaction quota can lease such quota to dApps in exchange for their tokens. For instance, users can stake VITE in exchange of ViteX’s native decentralized exchange token, VX.

Vite’s current products include a decentralized exchange (ViteX), a multi-purpose wallet application (Vite App), payments (VitePay), and government/enterprise blockchain applications (VitePlus):

ViteX is a decentralized exchange with on-chain orderbook and matching engine, and supports currently 20+ digital assets.

Vite App is a mobile application that allows trading (ViteX), asset management (wallet), dapps (e.g Vite-based games) in one place.

VitePay is a fast and feeless payment solution, currently available to use in Singapore’s Ce La Vi Sky Bar and taxi services under the Midwest Global network - Users can pay for merchants with Vite wallet, who in turn receive payment with zero fees with near-instant settlement. VitePay is also integrated with the e-commerce platform OpenCart, and one can utilize VitePay at the official Vite store.

VitePlus is a Vite-based enterprise blockchain solution for governments and enterprises. Vite has developed a pilot app, SyraCoin, for the Syracuse government, allowing city housing fund donors to receive blockchain-based coupons that are redeemable for goods and services within city bounds.

VITE

Aergo describes itself as an open-source enterprise blockchain platform optimized for hybrid deployments, which consist of both permissioned and permissionless blockchain architectures. It includes support for SQL allowing for easy data handling and familiar smart contract programming for developers.

The platform is built and utilized by Blocko, the Samsung-backed South Korean blockchain technology company that, according to Korean media sources, has deployed production blockchain solutions for large-scale clients including Lotte Card, Shinhan Bank, Korea Exchange, Hyundai Motors, and more.

Aergo

BitShares Blockchain is a decentralized “Blockchain as Organization” (BaO); an industrial-grade decentralized open source platform built to run high-performance financial technology operations. It represents the first decentralized autonomous decentralized community that enables its core utility token (BTS) holders to decide the Blockchain future direction in order to develop and maintain a wide range of decentralized financial technology products, features and functions. BitShares Blockchain is a Blockchain that permanently records financial technology operations between different Blockchain accounts and facilitates a wide range of access controls across BitShares Blockchain user financial means.

BitShares Blockchain is a technology that supports the digital generation entrepreneurs, investors, and developers with a common interest in building and participating in free market solutions by leveraging the power of globally decentralized consensus and decision making. Consensus technology has the power to do for economics what the internet did for information. It can harness the combined power of all humanity to coordinate the discovery and aggregation of real-time knowledge, previously unobtainable. This knowledge can be used to more effectively coordinate the allocation of resources toward their most productive and valuable use.

BitShares looks to extend the innovation of the Blockchain to all industries that rely upon the internet to provide their services. Whether its banking, stock exchanges, lotteries, voting, music, auctions or many others, a digital public ledger allows for the creation of distributed autonomous companies (or BaO) that provide better quality services at a fraction of the cost incurred by their more traditional, centralized counterparts. The advent of (BaO) ushers in a new paradigm in organizational structure in which companies can run without any human management and under the control of an incorruptible set of business rules. These rules are encoded in publicly auditable open source software distributed across the computers of the companies’ shareholders, who effortlessly secure the company from arbitrary control. BitShares does for business what bitcoin did for money by utilizing distributed consensus technology to create companies that are inherently global, transparent, trustworthy, efficient and most importantly profitable.

BitShares has went through many changes and has done its best to stay on top of Blockchain technology. BitShares is using Consensus as the mechanism by which organized people decide upon unitary rational action. While not considered technology in the traditional since, consensus “technology” is the basis of democratic governance and the coordination of free market activity first coined by Adam Smith as the “Invisible Hand.” The process of consensus decision-making allows for all participants to consent upon a resolution of action even if not the favored course of action for each individual participant. Bitcoin was the first system to integrate a fully decentralized consensus method with the modern technology of the internet and peer-to-peer networks in order to more efficiently facilitate the transfer of value through electronic communication. The proof-of-work structure that secures and maintains the Bitcoin network is one manner of organizing individuals who do not necessarily trust one another to act in the best interest of all participants of the network. The BitShares ecosystem employs Delegated Proof of Stake in order to find efficient solutions to distributed consensus decision making.

BitShares

Apps use ICON to operate cross-chain seamlessly, build momentum and gain reputation. ICON's Cross-Chain Framework simplifies cross-chain development with its easy-to-use xCall messaging standard and connections to secure bridging protocols.