Not necessarily. The protocol itself doesn't use base58 or the typo checksum, AFAIK. If your client sends out a hash it derived from a typoed base58 string, n

Not necessarily. The protocol itself doesn't use base58 or the typo checksum, AFAIK. If your client sends out a hash it derived from a typoed base58 string, nobody on the network will know it was a typo, they just see a 20-byte hash that could be anything.