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InfoResearchPeer-reviewed
CShard: Blockchain Sharding via Repairable Fountain Codes and the Paradigm for Sharding Design
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Summary
The paper presents CShard, a blockchain sharding protocol that uses repairable fountain codes (RFCs), an information coding method with a locality feature, to define transaction verification and to recover blocks of corrupted shards by decoding. It also proposes a ghost reporter mechanism, which lets all nodes verify transactions by submitting reports, to detect corrupted shards and to allow smaller node counts per shard.