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.
Coinbase Global, Inc., branded Coinbase, is an American publicly traded company that operates a cryptocurrency exchange platform. Coinbase is a distributed company; all employees operate via remote work. It is the largest cryptocurrency exchange in the United States in terms of trading volume. The company was founded in 2012 by Brian Armstrong and Fred Ehrsam. In May 2020, Coinbase announced it would shut its San Francisco, California, headquarters and change operations to remote-first, part of a wave of several major tech companies closing headquarters in San Francisco in the wake of the COVID-19 pandemic.
Blockchain.com is a cryptocurrency financial services company. The company began as the first Bitcoin blockchain explorer in 2011 and later created a cryptocurrency wallet that accounted for 28% of bitcoin transactions between 2012 and 2020. It also operates a cryptocurrency exchange and provides institutional markets lending business and data, charts, and analytics.
Bitcoin ATMs are kiosks that allow a person to purchase Bitcoin and other cryptocurrencies by using cash or debit card. Some Bitcoin ATMs offer bidirectional functionality, enabling both the purchase of Bitcoin and the sale of Bitcoin for cash. In some cases, Bitcoin ATM providers require users to have an existing account to transact on the machine.
Ripple Labs, Inc. is an American technology company which develops the Ripple payment protocol and exchange network. Originally named Opencoin and renamed in 2015, the company was founded in 2012 and is based in San Francisco, California.
Circle began as a peer-to-peer payments technology company that now manages stablecoin USDC, a cryptocurrency the value of which is pegged to the U.S. dollar. It was founded by Jeremy Allaire and Sean Neville in October 2013. Circle is headquartered in Boston, Massachusetts. USDC, the second largest stablecoin worldwide, is designed to hold at or near a stable price of $1. The majority of its stablecoin collateral is held in short-term U.S. government securities.
A cryptocurrency tumbler or cryptocurrency mixing service is a service that mixes potentially identifiable or "tainted" cryptocurrency funds with others, so as to obscure the trail back to the fund's original source. This is usually done by pooling together source funds from multiple inputs for a large and random period of time, and then spitting them back out to destination addresses. As all the funds are lumped together and then distributed at random times, it is very difficult to trace exact coins. Tumblers have arisen to improve the anonymity of cryptocurrencies, usually bitcoin, since the digital currencies provide a public ledger of all transactions. Due to its goal of anonymity, tumblers have been used to money launder cryptocurrency.
Digital Currency Group (DCG) is a venture capital company focusing on the digital currency market. It is located in Stamford, Connecticut. The company has the subsidiaries Foundry, Genesis, Grayscale Investments, and Luno. It also formerly owned CoinDesk.
Bitfinex is a cryptocurrency exchange owned and operated by iFinex Inc, and is registered in the British Virgin Islands. Bitfinex was founded in 2012. It was originally a peer-to-peer Bitcoin exchange, and later added support for other cryptocurrencies.
Binance Holdings Ltd., branded Binance, is a global company that operates the largest cryptocurrency exchange in terms of daily trading volume of cryptocurrencies. Binance was founded in 2017 by Changpeng Zhao, a developer who had previously created high-frequency trading software. Binance was initially based in China, then moved to Japan shortly before the Chinese government restricted cryptocurrency companies. Binance subsequently left Japan for Malta and currently has no official company headquarters.
Cryptocurrency and crime describe notable examples of cybercrime related to theft of cryptocurrencies and some methods or security vulnerabilities commonly exploited. Cryptojacking is a form of cybercrime specific to cryptocurrencies that have been used on websites to hijack a victim's resources and use them for hashing and mining cryptocurrency.
bitFlyer is a private company headquartered in Tokyo, Japan and founded in 2014. It operates one of the largest cryptocurrency exchanges with 2.5 million users and develops other crypto-related technology.
Blockchain analysis is the process of inspecting, identifying, clustering, modeling and visually representing data on a cryptographic distributed-ledger known as a blockchain. The goal of blockchain analysis is to discover useful information about different actors transacting in cryptocurrency. Analysis of public blockchains such as Bitcoin and Ethereum is typically conducted by private companies like Chainalysis, TRM Labs, Elliptic, Nansen, CipherTrace, Elementus, Dune Analytics, CryptoQuant.
USD Coin (USDC) is a digital stablecoin pegged to the United States dollar. USD Coin is managed by Circle. USDC is issued by a private entity and should not be confused with a central bank digital currency (CBDC).
Decentralized finance offers financial instruments without relying on intermediaries such as brokerages, exchanges, or banks by using smart contracts on a blockchain, mainly Ethereum. DeFi platforms allow people to lend or borrow funds from others, speculate on price movements on assets using derivatives, trade cryptocurrencies, insure against risks, and earn interest in savings-like accounts. DeFi uses a layered architecture and highly composable building blocks. Some applications promote high-interest rates but are subject to high risk. Coding errors and hacks have been common in DeFi.
Olaf Carlson-Wee is an American entrepreneur and the CEO of cryptocurrency fund Polychain Capital, which he founded in 2016. He was the first employee of Coinbase. Carlson-Wee was named in the Forbes 30 Under 30 list in 2018.
Solana is a blockchain platform which uses a proof-of-stake mechanism to provide smart contract functionality. Its native cryptocurrency is SOL.
The general notion of cryptocurrencies in Europe denotes the processes of legislative regulation, distribution, circulation, and storage of cryptocurrencies in Europe. In April 2023, the EU Parliament passed the Markets in Crypto Act (MiCA) unified legal framework for crypto-assets within the European Union.
Crypto.com is a cryptocurrency exchange company based in Singapore. As of June 2023, the company reportedly had 80 million customers and 4,000 employees. The exchange issues its own exchange token named Cronos (CRO).
Gate.io is a global cryptocurrency exchange and blockchain platform established in 2013. It has ranked within the top 10 worldwide in terms of trading volume, as reported by Reuters.
