or how about mining on a xerox alto? http://www.righto.com/2017/07/bitcoin-mining-on-vintage-xerox-alto.html http://www.righto.com/2017/07/bitcoin-mining-on-vin

or how about mining on a xerox alto? http://www.righto.com/2017/07/bitcoin-mining-on-vintage-xerox-alto.html http://www.righto.com/2017/07/bitcoin-mining-on-vintage-xero... They are cheating by putting it near to a known hash to verify that it works, you can't earn anything off it.