6 papers
Track me if you can: Ephemeral coin tracing
Ignacio Amores-Sesar, Christian Cachin, Rohit Chatterjee +3
Privacy-preserving payment systems are well understood, yet their adoption in regulated settings, such as central bank digital currencies (CBDCs), institutional stablecoins, and ot…
Symmetry all the way down
Ignacio Amores-Sesar, Christian Cachin, Simon Holmgaard Kamp +1
Asymmetric trust generalizes classical symmetric quorum systems by allowing each process to specify its own failure assumptions. While this flexibility enables tolerance of strictl…
The Tragedy of Chain Commons
Ignacio Amores-Sesar, Mirza Ahad Baig, Seth Gilbert +2
Byzantine Fault Tolerant (BFT) consensus forms the foundation of many modern blockchains striving for both high throughput and low latency. A growing bottleneck is transaction exec…
Weaker Assumptions for Asymmetric Trust
Ignacio Amores-Sesar, Christian Cachin, Simon Holmgaard Kamp +1
In distributed systems with asymmetric trust, each participant is free to make its own trust assumptions about others, captured by an asymmetric quorum system. This contrasts with…
DAG it off: Latency Prefers No Common Coins
Ignacio Amores-Sesar, Viktor Grøndal, Adam Holmgård +1
We introduce Black Marlin, the first Directed Acyclic Graph (DAG)-based Byzantine atomic broadcast protocol in a partially synchronous setting that successfully forgoes the reliabl…
DAG-based Consensus with Asymmetric Trust [Extended Version]
Ignacio Amores-Sesar, Christian Cachin, Juan Villacis +1
In protocols with asymmetric trust, each participant is free to make its own individual trust assumptions about others, captured by an asymmetric quorum system. This contrasts with…