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Explaining the PBFT protocol using these key principles: decentralizedthoughts.github.io/2025-02-14-PBF… with Ittai Abraham

Trailer for my upcoming low-budget production film "The Rise of Layer 1.5" with subtitles (sound on 🔊)

Promoted to associate professor with tenure at Duke CompSci. Deep gratitude to my mentors, collaborators, students, and family for all their help along the way.

Yay! gōng xǐ, Xiao :)

Compiling a report on current loss potential from L2 sequencer hacks / reorgs. Starting with lists of exchanges (CEX) / bridges that currently rely on centralized sequencer confirmations only to move funds. Help me out? Reply if you know of one. Intent solvers don’t count.

Incredibly proud of everything the Espresso team has shipped in the last 4 years, so a little recap: 1/ ☕️⛓️: a chain purpose-built for fast, secure cross-chain confirmations (& performant DA) Running on permissioned mainnet since November, first chains integrating now 👇

Yay!

Zhongtang Luo Nibesh Shrestha will be presenting a DAG-based BFT, Sailfish (eprint.iacr.org/2024/472), high-throughput, low-latency blockchains. It is now emerging as a simple DAG-based BFT to learn if you are new to the space. It has also been extended further, and I am putting up a separate

Last fall, we discussed some cool distributed systems/blockchain problems at Schloss Dagstuhl in Germany. Check out a summary report drops.dagstuhl.de/entities/docum… compiled by Julian Loss, Kartik Nayak, and me. Special thanks to the participants: Ittai Abraham, Zeta Avarikioti, Renas Bacho,

“Low-Latency Dynamically Available Total Order Broadcast” by Sravya Yandamuri, Nibesh Shrestha, Kartik Nayak, and myself. We propose a Dynamically Available BFT protocol that adapts to real network conditions for low-latency consensus. eprint.iacr.org/2025/1003.pdf