A New Proof-of-Stake Sharding Architecture for Public Blockchains

This paper proposes a sharding architecture solution for public blockchains aiming for significantly improving the transaction processing performance. The solution uses the Proof-of-Stake Voting (PoSV) consensus protocol proposed by Tomochain for intra-shard consensus because PoSV provides 2 second...

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Detalles Bibliográficos
Autor principal: Pham, Van Cam
Formato: Artículo
Lenguaje:Vietnamese
Publicado: 2018
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Acceso en línea:http://thuvien.cit.udn.vn//handle/123456789/109
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Thư viện lưu trữ: Trường Đại học Công nghệ Thông tin và Truyền thông Việt Hàn - Đại học Đà Nẵng
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Sumario:This paper proposes a sharding architecture solution for public blockchains aiming for significantly improving the transaction processing performance. The solution uses the Proof-of-Stake Voting (PoSV) consensus protocol proposed by Tomochain for intra-shard consensus because PoSV provides 2 second block-time and fast confirmation time. The paper identifies and solves cross-shard transactions for smart contract call chaining and data availability problem in shard reshuffling. Specifically, we propose a cross-shard smart contract transaction scheme combined with a new smart contract deployment strategy that places dependent smart contracts onto the same shard. Moreover, we also address the data availability problem in state sharding when shard reshuffling takes place.