Idk how blockchain could avoid the game to be data mined or make impossible spoofing. The best way to counter the bot is a captcha who appear every 30 min once your account get report by player for a week for example. But niantic refused it. Another way was to delete the PvP by gym and only make gym a raid place for PvE, then PvP would be something fun with competition like the old pokemon games were.

Everything is about game design, its impossible to stop the spoofing.
But its possible to make it irrelevant, remove the frustration from it by changing the way you PvP and make the game more PvE coop in real life.