Pay-to-Public-Key Hash

The Pay-to-Public-Key Hash (P2PKH) majority of the transactions on the Bitcoin network happen using this method. This is how the script looks:

OP_DUP OP_HASH160 [Pubkey Hash] OP_EQUALVERIFY OP_CHECKSIG

This is how the signature script looks:

[Sig][PubKey]

These strings are concatenated together to be executed.