4 papers
Ark: Offchain Transaction Batching in Bitcoin
Pim Keer, Ioannis Alexopoulos, Matteo Maffei +3
Bitcoin is the cryptocurrency with the largest market capitalisation, but its widespread adoption is fundamentally limited by the scalability constraints of its consensus algorithm…
Calyx: Privacy-Preserving Multi-Token Optimistic-Rollup Protocol
Dominik Apel, Zeta Avarikioti, Matteo Maffei +1
Rollup protocols have recently received significant attention as a promising class of Layer 2 (L2) scalability solutions. By utilizing the Layer 1 (L1) blockchain solely as a bulle…
A Security Framework for General Blockchain Layer 2 Protocols
Zeta Avarikioti, Matteo Maffei, Yuheng Wang
Layer 2 (L2) protocols, payment channels, sidechains, and rollups, are central to blockchain scalability, enabling off-chain execution while preserving on-chain security. Despite g…
A Composable Game-Theoretic Framework for Blockchains
Zeta Avarikioti, Georg Fuchsbauer, Pim Keer +2
Blockchains rely on economic incentives to ensure secure and decentralised operation, making incentive compatibility a core design concern. However, protocols are rarely deployed i…