Contracts

In order to handle addresses that denote an originated account on the chain, we need a value of type contract. In fact, it is a type parameterised by the type of the contract's parameter. Contrary to the type address, there are no literal values of the type contract, so values have to be created by means of predefined functions.

The call Tezos.implicit_account(kh) casts the public key hash kh into the address of its implicit account. Note that addresses of implicit accounts always have the type contract<unit>.