Nyoro~n on Nostr: when you generate a new address it appends the public private key pair to the ...

when you generate a new address it appends the public private key pair to the wallet.dat file of the active wallet.

when sending a bitcoin transaction, Bitcoin Core generates change addresses in a similar fashion.

your balance in bitcoin core refers to the utxos that can be spent using the public/private key pairs in wallet.dat


tangent: createrawtransaction does NOT generate change addresses and is one of the most common ways to lose bitcoin by overpaying mining fees