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[–] ReverendDobbs 0 points 2 points (+2|-0) ago 

Cant blockchain be used with a printed receipt and have an option to later log on to a website and plug the receipt code info in ....that way there can be two or three counting or tallying methods running in different areas with different platforms and technologies. It would be impossible to hack all that simultaneously. (Just an ignoramus spitballn ideas here)