Blockchain consensus protocols have been a focus of attention since the advent of Bitcoin.
Although classic distributed consensus algorithms made significant contributions to the …

Blockchain is an inspiring emerging technology that takes much attention from various
researchers and companies. The technology offers various benefits such as data security …

Blockchain-based decentralized cryptocurrencies have drawn much attention and been
widely-deployed in recent years. Bitcoin, the first application of blockchain, achieves great …

The past decade has witnessed the rapid evolution in blockchain technologies, which has
attracted tremendous interests from both the research communities and industries. The …

We study the problem of building a verifiable delay function (VDF). A VDF VDF requires a
specified number of sequential steps to evaluate, yet produces a unique output that can be …

Cryptocurrencies have provided a promising infrastructure for pseudonymous online
payments. However, low throughput has significantly hindered the scalability and usability of …

Designing a secure permissionless distributed ledger (blockchain) that performs on par with
centralized payment processors, such as Visa, is a challenging task. Most existing …

Existing blockchain systems scale poorly because of their distributed consensus protocols.
Current attempts at improving blockchain scalability are limited to cryptocurrency. Scaling …

SBFT is a state of the art Byzantine fault tolerant state machine replication system that
addresses the challenges of scalability, decentralization and global geo-replication. SBFT is …

Blockchain is a distributed and decentralized ledger for recording transactions. It is
maintained and shared among the participating nodes by utilizing cryptographic primitives …