<p>The quantum signature is an important branch of quantum cryptography. It leverages the fundamental principles of quantum mechanics to achieve the integrity, authenticity, unforgeability, and non-disavowal of messages. Unlike the security of classical digital signatures, which is based on computationally hard mathematical problems, the security of quantum signatures relies on the fundamental principles of quantum mechanics. In this paper, we propose an arbitrated quantum signature scheme based on entanglement swapping and hash functions. Security analysis confirms that the scheme satisfies the fundamental requirements of unforgeability and non-disavowal. Compared with existing schemes, our approach reduces quantum operations, conserves quantum resources, and lowers the consumption of classical keys. The results also highlight a crucial insight for quantum signature scheme designers: by integrating classical signature design techniques, such as the use of hash functions, it is possible to simultaneously achieve multiple benefits, including more efficient use of quantum resources, simpler quantum operations, reduced quantum communication volume, and reduced key consumption.</p>