Cryptocurrency and Blockchain Dictionary

Block explorer

A block explorer is an online service to track blockchain transactions. It usually is a website where you can see all the new blocks that are being created. You can also search for transactions and wallet addresses. The best-known block explorers are blockchain.info for Bitcoin and etherscan.io for Ethereum.

Double Spending

With digital currency, there is a risk that the holder could make a copy of the digital token and send it to a merchant or another party while retaining the original.

Decentralized Autonomous Organizations

DAO is an abbreviation of ‘Decentralised Autonomous Organization’. This is basically an organisation that runs automatically on itself without any human interventions. The work is automatically excecuted through Smart contracts.

Bitcoin

Bitcoin is a digital or virtual cryptocurrency created in 2009 that uses peer-to-peer technology to facilitate instant payments.

2 Factor Authentication (2FA)

2 Factor Authentication is a double layer security measure. Most crypto exchanges use it. In order to log in, you not only need to enter a password, but also a code that you receive from the Google authenticator for example.

Altcoin

An altcoin is any cryptocurrency or token created after the Bitcoin was developed.