Arizona Proof of Authority is an online verification system that enables businesses and organizations to prove their identity and ownership of digital assets. It is a secure, decentralized system of authentication that uses a special type of digital signature called a "proof of authority" (POA). The POA is a unique digital signature that is cryptographically linked to a specific individual or entity, and it is used to verify the authenticity of digital documents and other digital assets. Arizona POA is an open-source software project developed by the Arizona Corporation Commission and is currently being used by several state agencies and organizations. There are two types of Arizona POA: a digital signature algorithm (DSA) and an elliptic curve digital signature algorithm (EC DSA). Both types of POA are used to securely authenticate digital documents and other digital assets.