Alephium

Alephium, Scalable blockchain: efficient and practical. Alephium was founded by cryptography and distributed computing expert Cheng Wang. The project aims to scale blockchain to handle tens of thousands of transactions per second. Its core algorithm called BlockFlow combines sharding technology with DAG (Directed Acyclic Graph) and utilizes a scalable UTXO (Unspent Transaction Output) model to resolve the inefficiency of sharding performance during cross-shard transactions. By breaking down smart contracts into token protocols and data protocols, Alephium allows developers to build dApps that support high concurrency scenarios while maintaining the Turing-complete functionalities of smart contracts.