Candidate Block

tl;dr: A candidate block is a temporary container of unconfirmed transactions that is assembled, and validated through the mining process, by a miner in the context of Bitcoin and other cryptocurrencies.


What Is a Candidate Block?

A candidate block is a collection of unconfirmed transactions assembled by a miner in the context of Bitcoin and other cryptocurrencies. Miners attempt to validate candidate blocks through the mining process, and once successfully validated, the candidate block becomes part of the blockchain. In essence, a candidate block serves as a temporary container for unconfirmed transactions that miners work on to maintain the security and integrity of the cryptocurrency network.