A Digital ID encompasses two key concepts essential for navigating the digital landscape. Primarily, it refers to a digital identity, which is the online representation of an individual or entity, or the collection of claims made about them across various digital platforms. Secondly, "Digital ID" also specifically denotes a Public Key Certificate, widely known as a Digital Certificate. This electronic document leverages a digital signature to securely link a public key with a verified identity. Such certificates are vital for establishing authenticity, trust, and secure communication in online interactions and transactions.