Blockchain Ecosystem for Credit Transfer in Education

Algorithm 5

Contract owned.

	Contract receiveApproveAndCallBack
	Declare blockAddress Public owner
	Declare blockAddress Public newOwner Event OwnershipTransferred
	Function Ownedtoken() Public
	Assign ownertoken = msg.sender Endfunction
	Modifier onlyOwnertoken
	msg.sender to be equal to ownertoken
	Function transferOwnership
	Pass In: blockaddress newOwner
	Assign newOwner = newOwner
	Endfunction
	Function acceptOwnership
	Require msg.sender to be equal to newOwner
	Call: ownerTransfer
	Assign owner = newOwner
	Assign newOwner = blockaddress(0) Endfunction