pub fn generate_hash(&self) -> generic_array::GenericArray<u8, generic_array::ArrayLength<u8>> {
    let mut hasher = sha3::Sha3_256::default();
    hasher.input(self.uuid.as_fields().3);
    hasher.input(self.contents.as_bytes());
    hasher.input(&self.nonce.to_le_bytes());
    hasher.result()
}