The number of validators in a blockchain network depends on the network and how it was made. Different blockchain systems may have different ways of choosing validators. Some networks have a set number of validators, while others have a number that changes based on things like the size of the stakes, how voting works, or who is in charge. Over time, as new validators join the network or old ones leave, the exact number of validators in a blockchain can change. To find out how many validators are in a given blockchain network, it’s best to look at the documentation for that network.