Sharding is the splitting of a blockchain into smaller “shards” to solve the scalability issues associated with Layer 1 networks.
Sharding increases transaction speed, minimizes processing and storage costs, and improves network performance.
Sharding has potential drawbacks such as network security issues and the complexity of cross-shard transactions.
Introduction
Blockchain technology brings unprecedented potential in decentralization, transparency, and security, but it also faces the huge challenge of scalability. Scalability is one of the blockchain trilemma, the other two being security and decentralization. The blockchain field has always strived to satisfy the above three items at the same time, and "sharding" is a strategic solution that can come in handy.
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