I don't understand the whole curve thing.I was trying to generate vanity addresses using the solana cli. I created a keypair, then derived the pubkey from it using solana cli. Now if I check solscan for the pubkey, it says off curve.
How can it be off curve, if the pubkey was derived from a private key? I thought off curve addresses don't have private keys?
PS: I can import these wallets just fine into phantom using the private key. Are these addresses usable?