cryptocurrency exchange

“It's enough to, say, one percent of the customers check, If the exchange cheats and actually does not include people's obligations, you know, if a small number of fraction of the, ah, ah, customers actually check that the proof is valid, a, ah, a corrupt excha…”

“And we, blockchain's never been hacked. Some of the cryptocurrency exchanges have been hacked. You know, Mt. Gox, Coincheck more recently, Bitfinex, and others. But the blockchain itself has never yet been hacked.”