Updated and expanded this post: Understand the power of the adversary in the 5 dimensions:
1. corruption type; 2. computational power; 3. adaptivity; 4. visibility; 5. mobility

Improved version of Moonshot paper:
arxiv.org/pdf/2401.01791… (appearing at #DSN '24)

Supra is already using it for its blockchain. You should as well.

Much improved performance over #Jolteon & #Tendermint
by Isaac Doidge Nibesh Shrestha Raghavendra & Joshua D. Tobkin (SUPRA)

Honored to receive the Outstanding Paper Award for our recent joint work (with Mohammad Amiri Boon Thau Loo amr el abbadi) for 'The Bedrock of Byzantine Fault Tolerance' at #nsdi24 USENIX Association.

Paper: usenix.org/system/files/n…

The proliferation of different BFT protocols has made it…

Espresso Systems raised a Series B!

We think a lot about preconfirmations.

That's why we’ve designed Espresso on HotShot, a consensus protocol specialized in sequencing and fast finality. In our latest blog, we explore this design alongside Tendermint, another well-known consensus protocol.

Our mission is to preserve Ethereum's core value: composability.

Based Espresso is our latest development towards a future of composable L2s.

This design sees L2s retain autonomy over their sequencing rights, and supports any Ethereum L2, from based rollups to validiums:

While distributed computing & applied crypto researchers are making waves in the thriving blockchain industry, the CS academia (the US and a few other countries) still doesn't particularly look for candidates who claim blockchain as their area of research.

What can we do?

PREMIERE:

The United Rollups of Ethereum

w/ guests Justin Ðrake 🦇🔊 & Ben Fisch

Where the fragments of Ethereum threaten to turn the ecosystem into a maze of confusion, these men stand tall & illuminate the way & save us from the labyrinth of Ethereum’s rollup-centric roadmap👇

EVENT: Join us for a Duke CS Colloquium on Friday, Feb. 9 from 12:00-1:00 PM ET in LSRC D106, with lunch served at 11:45 AM. Adrian Perrig, CS Professor at ETH Zurich, Switzerland will present 'The SCION Inter-Domain Routing Architecture.' Don't miss it! bit.ly/dukecs-9feb2024

📢 “The Espresso Sequencer: HotShot Consensus and Tiramisu Data Availability”
🗣️ Kartik Nayak Kartik Nayak, Duke University Duke University / Espresso Systems Espresso Systems
📺 youtu.be/_fT3CobzR-w

This was a fun workshop with a lot of interesting talks! Thanks, David Tse Joachim Neu Srivatsan Sridhar for organizing it and putting up the videos.

Superb article by the Espresso Systems team on proposer-promised preconfirmations (expanding what was originally called based preconfirmation by Justin Ðrake 🦇🔊).

Proposer-promised Preconfirmations and BFT preconfirmations explained! hackmd.io/@EspressoSyste…

Congratulations Adithya Bhat Well deserved!

.Andrew Lewis-Pye and I have, for years, been iterating on mathematical models for the design and analysis of permissionless consensus protocols 👇

Wei-Kai Lin, Ethan Mook and Daniel Wichs devised a new method for privately searching large databases. “[This is] something in cryptography that I guess we all wanted but didn’t quite believe that it exists,” said Vinod Vaikuntanathan, a researcher at MIT. quantamagazine.org/cryptographers…

Our paper 'More is Merrier: Relax the Non-Collusion Assumption in Multi-Server PIR' (arxiv.org/abs/2201.07740) led by Tian Gong got accepted to IEEE S&P 2024 recently.
(w/ Ryan Hnery, n Alex Psomas) The journey of this paper has been long and is indeed worth sharing. [1/n]

I’m excited to share that after 5 wonderful years at the Ethereum Foundation Foundation, I’m embarking on a new adventure.

It’s been an incredible journey with the EF to develop the Ethereum protocol - from early proof-of-stake research to The Merge & beyond! The highlight has been…

Proposer-Builder Separation helps achieve validator decentralization for blockchains.

As we build HotShot to be compatible with PBS, we look to address one of its key outstanding problems: fair exchange between proposers and builders without reliance on trusted third parties.