Multifactor identity authentication via cumulative dynamic contextual identity

Disclosed are example methods, systems, and devices that allow for generation and maintenance of a central identity databank for a user's digital life. The identity databank may include identity elements with payload values and metadata values corresponding immutable attributes of the user. A multifactor identity authentication protocol allows service provider devices to more reliably validate transactions with user devices via an identity system. The identity databank may include passwords, which may be generated by the identity system linked to user accounts and/or service providers. The passwords may be provided to service provider devices, eliminating the need for users to conceive of a multitude of varying passwords for the user's accounts.