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.

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.

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.

"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.

A trader is a market participant who carries out trading operations with assets to earn income on the difference in prices. In the crypto space, traders work with coins and tokens on exchanges and other platforms.