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#152625
講者：Speaker:
We started with some really bad ideas like depositing one’s passport or an electronic ID. Nobody mentioned blockchain... At that point it wasn’t that popular, in 2014. We settled with something really, really simple, which is asking anyone who shows up who looks new what’s two to the power of six and two to the power of nine. If they can answer it, then they’re likely a civic or a Internet engineer. Things like that.