On 5 November 2020, Santander announced its collaboration with nine other leading Spanish firms to create a blockchain-based digital identity verification solution. The project, named Dalion, includes financial institutions such as CaixaBank, Bankia and BME, insurance companies MAPFRE and Línea Directa, energy firm Repsol, and the Alastria consortium. Dalion began in October 2019 and is now beyond conceptualization. It begins its second phase this month, with a plan to launch the solution in May 2021.
Dalion currently runs on Quorum, the permissioned version of Ethereum and is hosted on Alastria’s blockchain network. The solution is based on ID_Alastria, the consortium’s digital identity model inspired by the idea of Self-Sovereign Identity (SSI). Dalion works by having credential issuers certify and validate the digital identity of the users. Users will be able to have control over their personal data, which will be accessible to them at any time through a mobile app. They will be able to decide with whom they wish to share their data.
Blockchain technology enhances the authenticity of the information in a secure and reliable manner. Compared to other SSI solutions, a little more is stored on the blockchain. While any private data shared is not stored on the blockchain, the fact of a credential issuance or data sharing is stored as a hash or a fingerprint. Although it claims the hash cannot be linked to individuals.
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