Cryptocurrency Transactions
Expert-defined terms from the Certificate Programme in Payment Technology Integration course at London School of Planning and Management. Free to read, free to share, paired with a globally recognised certification pathway.
Address (Cryptocurrency) #
Address (Cryptocurrency)
: A cryptocurrency address is a unique identifier that serves as a destination f… #
It is similar to a bank account number and is used to receive and send funds. A cryptocurrency address is derived from a public key and is typically represented as a string of alphanumeric characters. Related terms: Public Key, Private Key, Cryptocurrency Transaction.
Bitcoin #
Bitcoin
: Bitcoin is the first and most well-known cryptocurrency #
It was created in 2009 by an individual or group of individuals using the pseudonym Satoshi Nakamoto. Bitcoin is a decentralized digital currency that uses cryptography for security. Transactions are recorded on a public ledger called the blockchain, and new bitcoins are created through a process called mining. Related terms: Blockchain, Cryptocurrency, Mining.
Block (Cryptocurrency) #
Block (Cryptocurrency)
: A block is a collection of cryptocurrency transactions that have been verified… #
In the context of Bitcoin, a block contains approximately 1 MB of transaction data and is added to the blockchain approximately every 10 minutes. Once a block is added to the blockchain, the transactions it contains are considered confirmed and are no longer reversible. Related terms: Blockchain, Cryptocurrency Transaction.
Blockchain #
Blockchain
: A blockchain is a decentralized, digital ledger that records transactions acro… #
It is called a "blockchain" because it is made up of blocks of transaction data that are linked together in a chain. The blockchain is maintained by a network of nodes, and once data is added to the blockchain, it is considered immutable and cannot be altered. Blockchain technology is the foundation for most cryptocurrencies, including Bitcoin. Related terms: Cryptocurrency, Bitcoin, Node.
Cold Storage #
Cold Storage
: Cold storage is a method of storing cryptocurrency offline, typically on a har… #
This method is considered more secure than storing cryptocurrency on a hot wallet (a wallet that is connected to the internet) as it is not susceptible to hacking or malware. Cold storage is also known as offline storage or hardware wallet. Related terms: Hot Wallet, Hardware Wallet, Paper Wallet.
Cryptocurrency #
Cryptocurrency
: A cryptocurrency is a decentralized digital currency that uses cryptography fo… #
Cryptocurrencies operate independently of a central bank and can be sent and received electronically. Transactions are recorded on a public ledger called the blockchain, and new units of the cryptocurrency are created through a process called mining. Bitcoin is the most well-known cryptocurrency, but there are many others, including Ethereum, Litecoin, and Monero. Related terms: Blockchain, Bitcoin, Mining.
Cryptocurrency Transaction #
Cryptocurrency Transaction
: A cryptocurrency transaction is the transfer of funds from one cryptocurrency… #
Transactions are verified and added to the blockchain, which serves as a public ledger of all past transactions. Cryptocurrency transactions are irreversible once they are added to the blockchain, and they typically incur a small transaction fee. Related terms: Address, Blockchain, Transaction Fee.
Decentralization #
Decentralization
: Decentralization refers to the distribution of power or authority away from a… #
In the context of cryptocurrency, decentralization means that there is no central authority controlling the currency, and that transactions are verified and added to the blockchain by a network of nodes. Decentralization is a key characteristic of most cryptocurrencies and is intended to increase security and transparency. Related terms: Blockchain, Node.
Ethereum #
Ethereum
: Ethereum is an open-source, blockchain-based platform that enables the creatio… #
It was created in 2015 by Vitalik Buterin and is the second most well-known cryptocurrency after Bitcoin. Ethereum has its own cryptocurrency, called Ether, which is used to facilitate transactions on the platform. Related terms: Blockchain, Cryptocurrency, Decentralized Applications, Ether.
Fiat Currency #
Fiat Currency
: Fiat currency is a government-issued currency that is not backed by a physical… #
Instead, fiat currency has value because it is declared legal tender by a government. Examples of fiat currency include the US dollar, the Euro, and the Japanese Yen. Fiat currency can be contrasted with cryptocurrency, which is decentralized and not controlled by a government. Related terms: Cryptocurrency, Legal Tender.
Hard Fork #
Hard Fork
: A hard fork is a radical change to a blockchain's protocol that makes previous… #
A hard fork is a permanent divergence from the previous version of the blockchain, and nodes running the old version will no longer be able to validate new blocks. Hard forks can be used to add new features to a blockchain or to reverse the effects of hacking or other malicious activity. Related terms: Blockchain, Node.
Hardware Wallet #
Hardware Wallet
: A hardware wallet is a physical device that is used to securely store cryptocu… #
Hardware wallets typically connect to a computer via USB and allow users to manage their cryptocurrency holdings offline. Hardware wallets are considered more secure than hot wallets (wallets that are connected to the internet) as they are not susceptible to hacking or malware. Related terms: Cold Storage, Hot Wallet, Paper Wallet.
Hash #
Hash
: A hash is a fixed-size string of characters that is generated from a larger pi… #
In the context of cryptocurrency, hashes are used to secure transactions and to add new blocks to the blockchain. Hashes are unique and cannot be reversed, making them an important tool for maintaining the security and integrity of the blockchain. Related terms: Blockchain, Transaction.
Hodl #
Hodl
: Hodl is a term that is used in the cryptocurrency community to describe the st… #
The term is a deliberate misspelling of the word "hold," and is often used in a humorous or lighthearted way. Hodling is a common strategy among long-term cryptocurrency investors. Related terms: Cryptocurrency, Long-Term Investment.
Hot Wallet #
Hot Wallet
: A hot wallet is a cryptocurrency wallet that is connected to the internet #
Hot wallets are typically used to store small amounts of cryptocurrency for everyday use, as they are more convenient than cold storage wallets (wallets that are not connected to the internet). However, hot wallets are also more susceptible to hacking and malware, so they are not recommended for storing large amounts of cryptocurrency. Related terms: Cold Storage, Cryptocurrency Wallet.
Initial Coin Offering (ICO) #
Initial Coin Offering (ICO)
: An Initial Coin Offering (ICO) is a fundraising event in which a company or or… #
ICOs are similar to initial public offerings (IPOs) in that they allow companies to raise capital for projects or ventures. However, ICOs are not regulated by governments and are often used to fund the development of decentralized applications (dApps) or other blockchain-based projects. Related terms: Blockchain, Decentralized Applications, Token.
Litecoin #
Litecoin
: Litecoin is a cryptocurrency that was created in 2011 by Charlie Lee #
It is similar to Bitcoin, but has a faster block time (2.5 minutes) and a larger maximum supply (84 million units). Litecoin is designed to be faster and more efficient than Bitcoin, and is often used as a testnet for new features and improvements. Related terms: Blockchain, Cryptocurrency, Bitcoin.
Mining #
Mining
: Mining is the process of adding new transactions to the blockchain and verifyi… #
In the context of Bitcoin, mining is performed by powerful computers that solve mathematical problems to verify transactions and add new blocks to the blockchain. Miners are rewarded with newly minted bitcoins for their efforts, and the process is designed to become more difficult as more bitcoins are mined. Related terms: Blockchain, Bitcoin, Transaction.
Node #
Node
: A node is a computer that is connected to a blockchain network and participate… #
Nodes maintain a copy of the blockchain and are responsible for adding new blocks to the chain. Nodes can be run by individuals or organizations, and are a key component of the decentralized nature of most cryptocurrencies. Related terms: Blockchain, Decentralization.
Non #
Fungible Token (NFT)
: A non-fungible token (NFT) is a unique digital asset that is stored on a block… #
Unlike fungible tokens, such as Bitcoin or Ether, which are interchangeable and have the same value, NFT
Altcoin #
A term used to describe cryptocurrencies that were launched after the success of Bitcoin. Altcoins often offer unique features or improvements over Bitcoin, such as faster transaction times or increased privacy. Examples include Ethereum, Litecoin, and Ripple.
Address #
A unique identifier used to send and receive cryptocurrency transactions. An address is a string of alphanumeric characters and typically starts with a '0x' or a '1'. It is similar to an email address or a bank account number.
ASIC #
Application-Specific Integrated Circuit. An ASIC is a piece of hardware designed to perform a specific task, such as mining a particular cryptocurrency. ASICs are highly efficient and are commonly used in cryptocurrency mining operations.
Block #
A collection of cryptocurrency transactions that have been verified and added to the blockchain. A block typically contains several hundred transactions and is added to the blockchain approximately every 10 minutes in the case of Bitcoin.
Blockchain #
A decentralized, distributed ledger that records cryptocurrency transactions. A blockchain is made up of blocks that are linked together using cryptography. Once data has been added to the blockchain, it is difficult to modify or remove.
Cold storage #
A method of storing cryptocurrency offline, typically on a hardware wallet or a paper wallet. Cold storage provides an added layer of security, as it is not connected to the internet and is therefore less vulnerable to hacking.
Decentralized #
A characteristic of a system that is not controlled by a single entity. In the context of cryptocurrency, decentralization refers to the fact that the blockchain is not controlled by any government, bank, or other institution.
Digital signature #
A mathematical scheme used to verify the authenticity of a digital message or document. In the context of cryptocurrency, a digital signature is used to prove that a transaction has been authorized by the owner of the private key.
Double spend #
An attempt to spend the same cryptocurrency more than once. Double spending is prevented by the blockchain, which ensures that once a transaction has been verified and added to the blockchain, it cannot be modified or reversed.
Fiat currency #
A currency that is issued and backed by a government. Examples include the US dollar, the Euro, and the Japanese Yen.
Fork #
A change to the software protocol of a cryptocurrency. A fork can be either a "hard fork" or a "soft fork". A hard fork is a permanent change to the blockchain, while a soft fork is a temporary change.
Hash #
A mathematical function that converts an input of any size into a fixed size output. In the context of cryptocurrency, hashing is used to secure transactions and add them to the blockchain.
Mining #
The process of verifying cryptocurrency transactions and adding them to the blockchain. Miners are rewarded with cryptocurrency for their efforts.
Node #
A computer that participates in the blockchain network by relaying and validating transactions. A node typically stores a copy of the entire blockchain.
Private key #
A secret code that is used to sign cryptocurrency transactions. A private key is typically a long string of numbers and letters and is stored in a digital wallet.
Proof of stake #
A consensus algorithm used by some cryptocurrencies. Proof of stake requires users to prove that they own a certain amount of the cryptocurrency in order to validate transactions and add them to the blockchain.
Proof of work #
A consensus algorithm used by some cryptocurrencies. Proof of work requires users to perform a certain amount of computational work in order to validate transactions and add them to the blockchain.
Public key #
A code that is used to receive cryptocurrency transactions. A public key is typically a long string of numbers and letters and is used in conjunction with a private key to sign transactions.
Smart contract #
A self-executing contract with the terms of the agreement directly written into code. Smart contracts are typically used on blockchain platforms, such as Ethereum, and can be used to automate complex processes.
Token #
A digital asset that is created and managed on a blockchain. Tokens can represent a variety of things, such as a share in a company, a physical asset, or a digital asset.
Transaction #
The transfer of cryptocurrency from one address to another. A transaction typically includes the sender's address, the recipient's address, and the amount of cryptocurrency being transferred.
Wallet #
A digital tool used to store, send, and receive cryptocurrency. A wallet typically includes a public key and a private key.
Whitepaper #
A detailed document that explains the technology, goals, and use cases of a cryptocurrency. A whitepaper is typically written by the creators of the cryptocurrency and is used to provide information to potential investors.
Zero knowledge proof #
A cryptographic method that allows one party to prove to another party that they know a value, without revealing the value itself. Zero knowledge proofs are used in some cryptocurrency networks to provide an added layer of privacy.
36 terms totaling approximately 3000 words #
36 terms totaling approximately 3000 words.
Note #
It is important to note that the field of cryptocurrency is constantly evolving, and new terms and concepts are being introduced on a regular basis. It is essential to stay up to date with the latest developments in order to fully understand the complexities of cryptocurrency transactions. Additionally, it is important to be aware of the potential risks and challenges associated with cryptocurrency transactions, such as security breaches, market volatility, and regulatory uncertainty.