WalliD

WalliD is a self-custodial digital identity aggregator launched in 2018 that connects various identity protocols and verification methods through a unified wallet interface. The platform implements W3C DID standards and integrates with both traditional Public Key Infrastructure (PKI) systems and blockchain-based identity solutions.

The core technology consists of a self-sovereign wallet that enables users to manage multiple types of digital identities and credentials, including:

• Government-issued IDs through integration with Portuguese Government Issuers like INCM and AMA
• Social media verifications across major platforms
• Blockchain credentials on networks like Ethereum, Polygon, NEAR, and Solana
• Digital certificates and verifiable credentials following W3C standards

Notable implementations include integration with DocuSign for qualified electronic signatures compliant with eIDAS regulations, and partnerships with Polygon ID for self-sovereign identity solutions. The platform's architecture ensures users maintain full control over their keys and identity data through a non-custodial design, while providing authentication and verification capabilities for both Web2 and Web3 applications. The project received funding from Armilar Venture Partners and has been working to bridge traditional digital identity infrastructure with decentralized identity protocols.