AURA

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The AURA bridging tool is one of the key components of the Cellframe ecosystem.
It was developed with a goal to create a blockchain communication network on the basis of each shard.
The AURA solves a problem of secure blockchain bridging.
Centralized bridges are compromised initially as one person controls frozen funds and can steal them or interfere in bridge operation.
AURA allows two blockchains to carry out simple operations like creation token derivatives by freezing original assets on one blockchain and printing it derivative (in the meaning of “mirror copy”) on another one.
The principal AURA service workflow:
Initially, there are two blockchains and web services for communication.
From each blockchain side, a set of K validators are determined. For being a validator each node has to stake N native fuel tokens of a shard.
Node is not obliged to be a shard master node.