Passing hash string with smart contracts

Question

The typical way to pass parameters/data is using eth.sendTransaction({from: accounts[0], to: accounts[1], value: integer, data: string). But i want to pass a hash string using smart contract in my transaction and want to save the string in block. How can i do it?

Answer 1

eth.sendTransaction is a go etherum function. There more functions you can use. To pass hash string and save it you can write your own smart contract and deploy it.