Scalable Decentralized Identity


In the Decentralized Identity model, the identifiers by which actors are known or related metadata are sometimes resolvable against a Decentralized Ledger Technology (DLT). When two actors engage in an online interaction that requires their identities be verified, they can both perform a lookup of the other’s identifier against the DLT on which the identity is anchored and retrieve metadata that will assist in subsequent validation. High-volume DI applications (such as social providers, or IOT) may require that many identities be bound to the DLT, which implies that the DLT be able to support that volume of transactions. Most public DLTs are not able to natively support such high transaction volumes. For example, Bitcoin’s maximum throughout is less than 7 transactions per second (tps) and the Ethereum network can process a maximum of 15 tps– these are the speed limits for all transaction types, not just those anchoring identities to the ledger. In this session you will learn about one approach for addressing this scaling limitation with the Hedera Consensus Service. We will also touch on an alternative model, the Sidetree protocol under development at the Decentralized Identity Foundation by Microsoft and many others. ( Architecture & Deployment, Decentralized Identity, Self-Sovereign Identity, Distributed Ledger, Identity at Scale, Paul Madsen).

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