A bank account that is registered in a country other than the one in which the owner was born is called an offshore account.
Testnet
An alternative blockchain used by developers for testing.
Impermanent Loss
When there is a price difference between the two assets a trader owns on a DEX, often a cryptocurrency and a stablecoin (such as USDC), impermanent loss might occur.
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.