To spend tokens in the Lite Account, a user will create a transaction, hash and sign it with their private key, attach their public key, and submit this to the Accumulate network. The network will hash the public key and compute a checksum, verify that the hash and checksum are identical to the Lite Account provided by the user, then decrypt the signature with their public key and verify the withdrawal. Of course, the network trusts that the person that owns the private key that hashes to this string of characters is the one who signed this transaction.