Data contains information on other data, such as details about a particular transaction's properties.
Airdrop
A marketing tactic known as a cryptocurrency airdrop involves giving away free tokens or coins to existing owners of a specific coin or token.
Falling Knife
The term falling knife (also known as "Catching a Falling Knife" or "Catching the Bottoms") refers to the action of buying an asset which is rapidly declining in price.
Candidate Block
In a few words, a candidate block is a block that a mining node (miner) is trying to mine in order to receive the block reward. So a candidate block may be described as a temporary block that will be either validated or discarded by the network. Miners compete with each other to validate the next block and add it to the blockchain, but first, they have to create a candidate block to participate in the mining competition.