pub fn get_vk_hash(vk: &SP1VerifyingKey) -> Result<B256> {
        let vk_hash_str = B256::from_str(&vk.bytes32())?;
        Ok(vk_hash_str)
    }
Get the verifying key hash from a verifying key.

# Details
The verifying key hash is used to identify a program.
crates/sdk/src/network/client.rs