Confirmation Time

Confirmation time refers to the time it takes for a blockchain transaction to be added to a block and for that block to be added to the blockchain. Confirmation time differs between blockchains and is primarily a function of block time. Confirmation time is distinct from finality; while a transaction may be confirmed in a block, it does not necessarily mean its inclusion is final. For instance, if the network relies on probabilistic finality guarantees, such as those using Nakamoto consensus, then a 'confirmed' transaction could still, in theory, be 'unconfirmed' or 'reversed'.