Understanding the Hyperledger Indy Distributed Ledger - Alexander Shcherbakov, Evernym

Hyperledger Indy has its own implementation of Distributed Ledger (indy-node) not dependent on any other blockchain platform. It also has its own implementation of a PBFT-like consensus protocol (indy-plenum).

Indy-node is a Ledger purpose-build for Identity. However, it can be used as a general-purpose blockchain for use cases besides Identity.

One of indy-node deployments (Sovrin Ledger) is successfully functioning in production for more than 2 years.

The presentation focuses on the Architecture and specific of Indy Ledger. In includes Plenum consensus protocol (RBFT), corresponding crypto (in particular, BLS multi-signature), organization of transactions and storages (ledgers and states), usage of merkle trees and Patricia merkle tries, auditability, workflow of read and write requests, catch-up procedure.

Support of custom plugins and custom transactions on top of indy-plenum or indy-node will also be described.

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