I'm looking at the difference between bitcoin and Ethereum wallets, and I'm confused about this part:

It seems that a bitcoin wallet can have multiple receiver addresses: In my mind this translates to multiple public keys for a single "wallet" private key (which might be an incorrect assumption).

However, in Ethereum it seems there is a strict limit of one address per private key. Since both use secp256k1, I wonder how this different behaviour is implemented.


I am backing up a single private key in the metamask application but I can restore all the wallets I created in the application.

With a generic wallet backup, it means that all accounts in that wallet are accessed.

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