A cryptocurrency, crypto-currency, or crypto is a digital currency designed to work as a medium of exchange through a computer network that is not reliant on any central authority, such as a government or bank, to uphold or maintain it. It is a decentralized system for verifying that the parties to a transaction have the money they claim to have, eliminating the need for traditional intermediaries, such as banks, when funds are being transferred between two entities.
Vitaly Dmitrievich Buterin, better known as Vitalik Buterin, is a Russian-Canadian computer programmer, and co-founder of Ethereum. Buterin became involved with cryptocurrency early in its inception, co-founding Bitcoin Magazine in 2011. In 2014, Buterin deployed the Ethereum blockchain with Gavin Wood, Charles Hoskinson, Anthony Di Iorio, and Joseph Lubin.
Ethereum is a decentralized blockchain with smart contract functionality. Ether is the native cryptocurrency of the platform. Among cryptocurrencies, ether is second only to bitcoin in market capitalization. It is open-source software.
A decentralized autonomous organization (DAO), sometimes called a decentralized autonomous corporation (DAC), is an organization managed in whole or in part by decentralized computer program, with voting and finances handled through a blockchain. In general terms, DAOs are member-owned communities without centralized leadership. The precise legal status of this type of business organization is unclear.
A blockchain is a distributed ledger with growing lists of records (blocks) that are securely linked together via cryptographic hashes. Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data. Since each block contains information about the previous block, they effectively form a chain, with each additional block linking to the ones before it. Consequently, blockchain transactions are irreversible in that, once they are recorded, the data in any given block cannot be altered retroactively without altering all subsequent blocks.
Hyperledger is an umbrella project of open source blockchains and related tools that the Linux Foundation started in December 2015. IBM, Intel, and SAP Ariba have contributed to support the collaborative development of blockchain-based distributed ledgers. It was renamed the Hyperledger Foundation in October 2021.
Consensys is a private blockchain software technology company founded by Joseph Lubin and based in New York City.
The DAO was a digital decentralized autonomous organization and a form of investor-directed venture capital fund. After launching in April 2016 via a token sale, it became one of the largest crowdfunding campaigns in history.
A decentralised application is an application that can operate autonomously, typically through the use of smart contracts, that run on a decentralized computing, blockchain or other distributed ledger system. Like traditional applications, DApps provide some function or utility to its users. However, unlike traditional applications, DApps operate without human intervention and are not owned by any one entity, rather DApps distribute tokens that represent ownership. These tokens are distributed according to a programmed algorithm to the users of the system, diluting ownership and control of the DApp. Without any one entity controlling the system, the application is therefore decentralised.
Ethereum Classic is a blockchain-based distributed computing platform which offers smart contract (scripting) functionality. It is open source and supports a modified version of Nakamoto consensus via transaction-based state transitions executed on a public Ethereum Virtual Machine (EVM).
Cardano is a public blockchain platform. It is open-source and decentralized, with consensus achieved using proof of stake. It can facilitate peer-to-peer transactions with its internal cryptocurrency, ADA.
Gavin James Wood is an English computer scientist, a co-founder of Ethereum and creator of Polkadot and Kusama.
Polkadot is a blockchain platform and cryptocurrency. The native cryptocurrency for the Polkadot blockchain is the DOT. It is designed to allow blockchains to exchange messages and perform transactions with each other without a trusted third-party. This allows for cross-chain transfers of data or assets, between different blockchains, and for decentralized applications (DApps) to be built using the Polkadot Network.
In blockchain, a fork is defined variously as:
Cryptocurrency and crime describes notable examples of cybercrime related to theft of cryptocurrencies and some of the methods or security vulnerabilities commonly exploited. Cryptojacking is a form of cybercrime specific to cryptocurrencies that has been used on websites to hijack a victim's resources and use them for hashing and mining cryptocurrency.
Anthony Di Iorio is a Canadian entrepreneur primarily known as a co-founder of Ethereum and an early investor in Bitcoin. Di Iorio is the founder and CEO of the blockchain company Decentral, and the associated Jaxx wallet. He also served as the first chief digital officer of the Toronto Stock Exchange. In February 2018, Forbes estimated his net worth at $750 million–$1 billion.
Amanda Claire Cassatt is an American entrepreneur, marketing executive and author. She was also the chief marketing officer at ConsenSys from 2016 until July 2019. Cassatt is the founder and CEO of Serotonin, a Web3 services company.
MetaMask is a software cryptocurrency wallet used to interact with the Ethereum blockchain. It allows users to access their Ethereum wallet through a browser extension or mobile app, which can then be used to interact with decentralized applications. MetaMask is developed by ConsenSys Software Inc., a blockchain software company focusing on Ethereum-based tools and infrastructure.
Uniswap is a decentralized cryptocurrency exchange that uses a set of smart contracts to execute trades on its exchange. It's an open source project and falls into the category of a DeFi product because it uses smart contracts to facilitate trades. The protocol facilitates automated transactions between cryptocurrency tokens on the Ethereum blockchain through the use of smart contracts. As of October 2020, Uniswap was estimated to be the largest decentralized exchange and the fourth-largest cryptocurrency exchange overall by daily trading volume.
Robert Thomas Greenfield IV is an American businessman, activist, philanthropist and former college athlete. He is the founder of the financial technology company Umoja Labs, formerly known as Emerging Impact, and serving as the former Head of Social Impact of ConsenSys, co-founding its philanthropic arm, ConsenSys Social Impact.
