In the cryptol world, is using public keys. It's basically cryptography that allows you to prove that you're the owner of something. And really what it means for an nft to be available is some piece of the eperum state which is going to represent that nft and is going to be a ledger. So i want to give an example here of may be likea transaction to make it clear to people. That's fascinating, by the way, the first time sound effects on the show, which i love. Let's take an end of ta. There's an end of tea. I want to buy it, and i want to use etherium to buy it.

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