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I have read online that hardware wallets can generate new public keys to facilitate transactions. Ie if someone has BTC on an exchange and they want to send that BTC in different installments to a single private key/hardware wallet, that hardware wallet can generate a different public key for each transaction. I’m a bit confused on how this works? Would the ledger not indicate that each of those installments now belongs to a different address? Or is it simply that each time a new public key is generated, the private key in the hardware wallet has the ability to sign for all of those? (Thus creating a persistent, growing list of public keys associated with one private key?).

Additionally, what is displayed on the ledger if that hardware wallet, after multiple installments with different public keys, now wants to send BTC elsewhere? Which of the previous public keys is used? Does it create a new one? Wouldn’t this show up on the ledger as a public key sending more BTC than it ever acquired?

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