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Grin is a minimalistic, lightweight cryptocurrency, implementing the [Mimblewimble](https://coinmarketcap.com/alexandria/article/what-is-mimblewimble) protocol for a unique balance of privacy and scalability. The chain has no addresses, no amounts, and no need to store data of spent outputs.

Grin is fully open-source and community-driven. There is no single entity behind it, Grin’s development is funded by donations as well as done voluntarily by contributors. Everybody can discuss, influence, or work on its development.

Grin’s blocktime is 1 minute, each with a coinbase reward of 60 grins, thus creating 1 unit per second, forever. This linear emission creates a constant increase in supply, but a decreasing rate of inflation; making the emission disinflationary. This simple design serves to ensure both the long term security of the chain and a fair process of coin distribution to all participants.

In Aug 2016, an anonymous person using the nickname ‘majorplayer’, signed onto a Bitcoin research IRC channel, dropped a link to a document, then signed out. The document titled ‘Mimblewimble’ was authored under the pseudonym Tom Elvis Jedusor. Several developers took an interest, one of them being Andrew Poelstra, who later published a paper which added several refinements and a detailed technical description of the original whitepaper.

In Oct 2016, a developer under the pseudonym Ignotus Peverell began work on developing an implementation of the protocol and was soon joined by others in an effort to build the project which ultimately came to be known as Grin. It was launched on January 15th, 2019.

Grin

Vertcoin

Firo (FIRO), formerly known as Zcoin, is a cryptocurrency that focuses on being private digital cash. It created the Lelantus privacy protocol which allows users to burn their coins and redeem them later for brand new ones that do not have any transaction history.

Prior to Lelantus, it was also the first cryptocurrency to code and launch a practical implementation of the Zerocoin protocol which became one of the most prevalent privacy protocols in use, prior to it being replaced by Sigma and then Lelantus after cryptographic flaws were discovered in the Zerocoin protocol in 2019.

Firo

Haven Protocol is similar to an offshore bank where users can create private tokens that represent stable and volatile assets, including commodities and fiat currencies (such as USD). The protocol is based on Monero, which focuses on secure, private and untraceable transactions.

As a result, most of the features of Monero extend to the Haven protocol, including the bulletproofs and other privacy tech. The base currency of Haven is the XHV, which is burnt to provide users with private, untraceable, synthetic assets and commodities called xAssets.

The network uses a “mint and burn” process to provide users with untraceable digital assets with standard market pricing and real asset-pegged value storage. Simply, users can burn Haven (XHV) for Haven Dollars (xUSD), which is a synthetic stablecoin.

Haven Protocol

HyperCash

Handshake is a decentralized permissionless system that is intended to incentivize a distributed network of computers to operate a system for domain name ownership.

Under Handshake, every peer is tasked with validating and managing the root DNS naming zone, with the objective of providing an alternative to current certificate authorities and naming systems.

Different participants across the internet such as social networking handles and domains rely on a centralized approach. This means the systems depend on a system of honesty — and are still prone to cyber attacks and fraud.

Handshake aims to eradicate this problem by creating a decentralized internet that relies on a peer-to-peer system.

Handshake

Oxen (formerly known as LOKI) is a privacy tech project with a mission. It’s a private cryptocurrency with instant transactions. An enormous and powerful PoS network. A secure messaging platform. A network anonymity layer. Tools to build a more private future for the Internet — all on blockchain.

Our vision is to provide a range of tools and services powered by the OXEN coin, enabling users and developers all over the world to leverage the power of our decentralised blockchain network to achieve unparalleled privacy and security as they work, play, and live their day-to-day lives on the internet. And this isn’t just an empty vision — we've put in the hard yards and spent years building these technologies to make our vision a reality.

The Oxen privacy stack includes:

Session, a fully anonymous, totally decentralised encrypted messaging platform

Lokinet, a powerful low-latency onion router

Oxen Name System (ONS), a registration system that allows users to provably burn OXEN to purchase temporary or permanent usernames for Session (and Oxen wallets), and domain names for Lokinet services

The Oxen coin is used for:

Staking to run Oxen Service Nodes

Purchasing name registrations for Lokinet (our onion router) and Session (our private messenger)

Transferring value through instant, private transactions with our revolutionary Blink transaction tech

Oxen

Ravencoin is a digital peer-to-peer (P2P) network that aims to implement a use case specific blockchain, designed to efficiently handle one specific function: the transfer of assets from one party to another. Built on a fork of the Bitcoin code, Ravencoin was announced on Oct. 31, 2017 and released binaries for mining on Jan. 3, 2018 with what is called a fair launch: no premine, ICO or masternodes. It was named in reference to a TV show Game of Thrones.

Ravencoin

Cortex

QuarkChain

Nimiq is designed to make cryptocurrencies easy to use for everyone without compromising decentralization. Nimiq is the only blockchain where users always participate directly by default. In comparison to the likes of Bitcoin and Ethereum where the default is to use a third-party node to connect to the network. Learn more: https://youtu.be/dA40oyDVtqs

Team Nimiq invented Nimiq OASIS, the DeFi crypto-fiat bridge! Atomic swaps between crypto like NIM and BTC (ETH coming soon) and fiat currencies like EUR (USD next) with no personal information are now possible. Earned swap fees are converted to NIM and held to create scarcity. See how it works: https://youtu.be/Spp_Be4dHaM

Nimiq created Albatross, a new, super fast Proof-of-Stake consensus algorithm that will launch with Nimiq 2.0, the next version of the Nimiq Blockchain. We expect ~1000 TPS and finality in one second, pushing Nimiq 2.0 to the theoretical limits of single chain blockchain protocols. Energy consumption will also be reduced to less than 1% (compared to current Nimiq POW) with this upgrade. Try out the demo: https://www.nimiq.com/albatross/

Nimiq’s “super-halving” coming soon! The transition to Nimiq 2.0 will reduce the emission rate from currently ~3000 NIM to only ~525 NIM per minute. Calculate your rewards using the Staking Calculator: https://www.nimiq.com/staking-calculator/

Join the friendly Nimiq Community to ask questions and learn more: https://www.nimiq.com/community/

Nimiq

Komodo

Library Credit (LBRY) is a platform that seeks to simplify the way digital content is distributed and accessed by both consumers and producers.

Library Credit uses a decentralized model to be fair, free, and open to all the involved parties.

More specifically, the platform functions as a distributed network built on top of a protocol that makes it easy for publishers to charge a fee to content consumers without censorship or the need for a middleman.

The project was launched towards the end of 2018 and is now serving an active community.

LBRY Credits

WaykiChain

Zcash is a decentralized cryptocurrency focused on privacy and anonymity. It uses the zk-SNARK zero-knowledge proof technology that allows nodes on the network to verify transactions without revealing any sensitive information about those transactions.

Contrary to a common misunderstanding, the majority of cryptocurrencies on the market, including Bitcoin (BTC), are not anonymous, but rather pseudonymous; while they do not explicitly reveal the identities of their users, each user has their own public address or addresses which can be traced back to them via the methods of data science and blockchain forensics.

Zcash transactions, on the other hand, still have to be relayed via a public blockchain, but unlike pseudonymous cryptocurrencies, ZEC transactions by default do not reveal the sending and receiving addresses or the amount being sent. There is an option, however, to reveal this data for the purposes of auditing or regulatory compliance.

Zcash was first released on October 28, 2016, and it was originally based on Bitcoin’s codebase.

Zcash

WOM Protocol

Dragonchain

v.systems

Fusion

Bitcoin Gold was founded in 2017 to become a user-friendly alternative to Bitcoin. The BTG network aims to combine the security and sturdiness of the Bitcoin blockchain and its characteristics with the opportunity for experimentation and development.

BTG enhances and extends the crypto space with a blockchain closely compatible with Bitcoin but without using resources like Bitcoin hash power or vying for the "real Bitcoin" title. The company aims to present a coin with the implementation capabilities of Bitcoin, however, expanding on the opportunities for DeFi and DApp developers to use the coin.

Bitcoin Gold

Populous is a network designed to offer small and medium-sized enterprises (SMEs) invoice liquidity for up to 90 days. Launched in 2017, Populous is designed to enable peer-to-peer (P2P) interaction between enterprises, boost liquidity and solve problems with working capital for SMEs.

By relying on blockchain technology and smart contracts, the Populous network facilitates decentralized communication between businesses and allows them to share liquidity pools. According to the network’s official whitepaper, there is a need for liquidity in the sector, and Populous is trying to bring the solution. By providing short-term liquidity to enterprises through P2P lending, the network gives enterprises quick access to capital, which cannot be achieved by waiting for customers to settle invoices.