Data contains information on other data, such as details about a particular transaction's properties.
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.
Encryption
Information can be converted into code using encryption, which conceals the true meaning of the data.
Ad Hoc
a Latin expression that means "for this purpose" or "specifically for this" in contemporary English.
