If there are three nodes, and the contract is like that
contract IncentiveMechanism{
uint public money;
function setMoney(uint m){
money = money+m;
}
}
if three nodes call the function setMoney to set the value of money at the same time, can blockchain get the sum of these three operation?
money
will become the sum of all 3 inputs if and only if all 3 transactions complete successfully AND no arithmetic overflow occurs in either one of them.