An authentication token is a digital key used to verify a user’s identity and grant access to specific resources or functions. In the case of blockchain and related applications, these tokens enhance security by ensuring that only authorized users can perform actions like transactions or accessing wallets.When a user logs in to a platform, they may receive an authentication token, which is often a string of characters generated by the system. This token is typically time-sensitive and can expire after a certain period. It acts as a form of proof that the user has been authenticated and is permitted to interact with the system.In some instances, these tokens can also serve as a medium for transactions. For example, stablecoins or utility tokens may be utilized within platforms to facilitate exchanges or pay for services. Overall, authentication tokens play a crucial role in maintaining security and privacy, helping to prevent unauthorized access and ensuring that only legitimate users can take action within a system.