Glossary of Terms

"To the moon" is a slang expression of the crypto community that describes a sharp and rapid rise in a cryptocurrency's price. The image of a "flight to the Moon" reflects the expectation of a strong rise in an asset's price and the optimism of its holders.

Bitcoin Days Destroyed is a network activity metric that takes into account not only the volume of coins moved but also the time they spent idle. It helps assess the movement of "old" coins.

Simplified Payment Verification (SPV) is a method of verifying transactions on a blockchain without downloading the entire chain of blocks. Block headers are enough, which makes the technology the foundation of lightweight crypto wallets.

A mining rig is a computing device for mining cryptocurrency, most often built on the basis of a computer with several graphics cards. The chance of receiving a block reward depends on its power.

Fintech is an industry that brings together companies that use technology and innovation to transform financial services. It includes payment services, neobanks, and also blockchain-based solutions.

The flippening is a hypothetical moment when Ethereum overtakes bitcoin in market capitalization and becomes the number one cryptocurrency. The reverse scenario is jokingly called the floppening.

Flat, or a sideways trend, is a market state in which the price moves within a narrow horizontal range without a pronounced trend. It is a period of calm between upward and downward movements.

A fork in a blockchain is a change to the rules by which a block is recognized as valid. There are soft forks and hard forks, which affect the unity of the network in different ways.

A cryptocurrency fork is a new coin created on the basis of existing code or an algorithm with certain changes made to it. This is how altcoins based on Bitcoin and Litecoin came about.

FPGA is a field-programmable gate array, a semiconductor chip that can be configured for specific tasks after it has been manufactured. In mining, it occupies an intermediate position between graphics cards and ASICs.