uPort was a protocol and platform for self-sovereign identity that enabled users to securely manage their digital identities. Originally built on Ethereum, uPort allowed individuals and businesses to control their personal information and authenticate themselves without relying on a centralized authority. However, the team behind uPort transitioned to a new identity and product line under the name Veramo, which focuses on providing a framework for creating and managing decentralized identifiers (DIDs) and verifiable credentials, allowing developers to build secure identity solutions.