Blockchain is the technology underpinning all cryptocurrencies, and many related products like non-fungible tokens (NFTs). In essence, it is a virtual spreadsheet on which all the buying and selling of crypto is recorded. They are arranged in blocks linked together in a giant chain - hence the name.

Bitcoin reached a new all-time high on Monday, as investors looked forward to a busy week for crypto legislation. The price of bitcoin jumped as high as 3% on Monday to $123,165.67 — a new record for the cryptocurrency.