Despite the myriad benefits offered by blockchain technology, most of them still face several
interrelated issues, such as limited transaction throughput, exorbitant transaction fees, and …

A verifiable timed signature (VTS) scheme allows one to time-lock a signature on a known
message for a given amount of time T such that after performing a sequential computation …

Decentralized cryptocurrencies still suffer from three interrelated weaknesses: Low
transaction rates, high transaction fees, and long confirmation times. Payment Channels …

Timestamping is an important cryptographic primitive with numerous applications. The
availability of a decentralized blockchain such as that offered by the Bitcoin protocol offers …

The payment channel network aims to solve the problems of long payment confirmation time
and limited throughput in cryptocurrencies through off-chain payments. Hash Time-Lock …

With the advancement of blockchain technology, hundreds of cryptocurrencies have been
deployed. The bloom of heterogeneous blockchain platforms brings a new emerging …

Permissionless blockchains offer many advantages but also have significant limitations
including high latency. This prevents their use in important scenarios such as retail …

Current permissionless blockchains suffer from scalability limitations. To scale without
changing the underlying blockchain, one avenue is to lock funds into blockchain smart …

Blockchain protocols have revolutionized how individuals and devices interact and transact
over the internet. More recently, a trend has emerged to harness blockchain technology as a …

Off-chain transactions seek to address the low on-chain scalability and enable blockchain-
based payments over unreliable on-chain networks. The key problem with existing works is …