Address
An address is an alphanumeric string derived from a user’s public key using a hash function, with additional data to detect errors. Addresses are used to send and receive crypto assets.
Altcoin
Altcoin is a term used to describe crypto assets other than bitcoin. There are thousands of altcoins in existence today, many with little or no market value.
Blockchain
Blockchain is an electronic distributed ledger or list of entries that’s maintained by various participants in a network of computers. Blockchains use cryptography to process and verify transactions on the ledger. Blocks store data on the network in groups. Each block of new data is appended onto the previous block, forming a chain of blocks of data.
Centralized Network
A centralized network is a network configuration where participants must communicate with a central source to communicate with one another. Since all participants must go through a single centralized source, the loss of that source would prevent participants from communicating.
Cold Storage
Cold storage is a method of storing private keys for crypto assets in an environment that isn’t connected to the internet. Examples include storing keys on disconnected hard drives, printing or writing them on a piece of paper, or storing them on USB drives. Also see Hot Storage, Wallet.
Crypto Asset
A crypto asset is any asset that’s issued or transferred using distributed ledger technology (DLT) or blockchain technology.
Crypto Asset Trading Platform
These are platforms that allow users to trade crypto assets (and, in some cases, other assets). Platforms serve as intermediaries that enable trading and recording of ownership of crypto assets, as well as facilitate holding crypto assets.
Crypto Key
A crypto key is a piece of information, usually a string of numbers or letters that are stored in a file that, when processed through a cryptographic algorithm, can encode or decode cryptographic data. See Public Key, Private Key.
Decentralized Autonomous Organization (DAO)
A DAO is a “virtual,” collectively-owned organization that operates on a distributed ledger or blockchain with governance and decision-making that’s formalized, automated and enforced using software.
Decentralized Finance (DeFi)
DeFi commonly refers to financial products, services, activities and arrangements that use distributed ledger or blockchain technologies (DLT) to operate in a disintermediated and decentralized manner by eliminating some traditional financial intermediaries and centralized institutions and enabling certain direct investment activities.
Decentralized Application (dApp)
This is a computer application that runs on a distributed computing system.
Distributed Ledger
A distributed ledger is spread across a network among all peers in the network with each peer holding a copy of the completed ledger.
Distributed Network
A distributed network is a network configuration where every participant can communicate with one another without going through a centralized source. Since there are multiple pathways for communication, the loss of any participant won’t prevent communication. This is also known as a peer-to-peer network.
Exchange
In the context of crypto assets, “exchanges” are crypto asset trading platforms that let users buy, sell, exchange and, in some cases, store cryptocurrencies or other digital assets. Crypto asset platforms might call themselves exchanges but don’t meet the regulatory standards applicable to national securities exchanges.
Hot Storage
Hot storage is a method of storing private keys for crypto assets in an environment that’s connected to the internet, including desktop wallets, mobile app wallets and online wallets. See Cold Storage, Wallet.
Howey Test
The Howey test is named for the U.S. Supreme Court case that set forth the criteria for determining whether a contract, transaction or scheme qualifies as an "investment contract" and is therefore considered a security and subject to disclosure and registration requirements under the Securities Act of 1933 and the Securities Exchange Act of 1934.
Immutable
Data that’s immutable can only be written, not modified or deleted.
Initial Coin Offering (ICO)
In an ICO, a company offers crypto assets for sale directly to investors and distributes the crypto assets via a blockchain network.
Initial Exchange Offering (IEO)
In an IEO, a company offers crypto assets for sale to investors but, unlike an ICO, issues these assets through a crypto asset service provider.
Mining
Mining refers to complex mathematical processes used to develop new coins, such as bitcoin, or verify new transactions. Mining usually involves many computers working to solve complex mathematical calculations on a block of transactions. Once solved or “mined,” the new coin is added to the blockchain.
Money Services Business (MSB)
An MSB is any person doing business, whether or not on a regular basis or as an organized business concern, in one or more of the following capacities: currency dealer or exchanger; check casher; issuer of traveler's checks, money orders or stored value; seller or redeemer of traveler's checks, money orders or stored value; and/or money transmitter.
Non-Fungible Tokens (NFTs)
NFTs are a type of crypto asset that has unique identification codes and metadata such that it can’t be exchanged for an equivalent asset. NFTs can be associated with unique digital items like art or collectibles. The benefits and rights (if any) offered to purchasers of NFTs will vary.
Private Key
A private key is an alphanumeric or hexadecimal sequence that can be used to control crypto assets credited to an associated blockchain address. Like a password, you should never share your private key.
Public Key
A public key is an alphanumeric or hexadecimal sequence that can be used to verify that a message has been digitally signed by the associated private key. A public key can be used to generate an "address" that can be used to send and receive crypto assets.
Reves Test
The Reves test is a four-factor test to help determine which “notes” are securities subject to federal securities law. Like the Howey test, the Reves test derives its name from a U.S. Supreme Court case.
Security Token Offering (STO)
An STO involves the sale of a token that the promoters disclose is a security.
Smart Contract
A smart contract is a token which operates an algorithmic program that runs on a blockchain.
Stablecoin
So-called “stablecoins” are crypto assets that are claimed to have a value that’s pegged to some other non-digital currency or commodity; however, those claims have been demonstrated to be false in many cases.
Traditional Currency
Traditional currency is currency that’s issued by a government (or group of governments) and not on a blockchain. For example, the traditional U.S. currency is the U.S. dollar. When this currency isn’t backed by or exchangeable with the issuer for a commodity, it’s commonly referred to as “fiat” currency.
Transaction Fee
A transaction fee is an amount charged to process a blockchain transaction, such as the “gas” fees paid to ethereum validators. These fees are generally paid to the persons who process the transactions and add them to the blockchain using the network’s native crypto asset.
Wallet
A crypto wallet is used to store the private keys that control crypto assets. Wallets can provide “cold” or “hot” storage. See Cold Storage, Hot Storage.
White Paper
A white paper is a document containing a promoter’s descriptions of a blockchain-related project.