That's got nothing to do with ether. A simple hash of the code is just as effective (or ineffective) at proving the program is the same.
Unfortunately, in reality you quickly run into problems with different compiler versions, optimisation settings and other issues that make builds unreplicable. At least with chrome extensions you can look at the JS source. With ethereum, all you have to go on is the compiled bytecode.
Unfortunately, in reality you quickly run into problems with different compiler versions, optimisation settings and other issues that make builds unreplicable. At least with chrome extensions you can look at the JS source. With ethereum, all you have to go on is the compiled bytecode.