A system and method for executing and recording transactions for a key in a blockchain. A method includes creating a smart contract on receiving a request to order a key on lease for a first period of time. The method further includes determining an availability of the key and determining an availability of digital tokens in an account of the user. The method also includes executing the smart contract for the first period of time by executing a first transaction using the digital tokens and recording the executed first transaction and the executed smart contract in a block of a block chain to provide the key on lease.