Layer 2

Aztec's Tierra V6 upgrade for privacy layer 2 on Ethereum; AI audit harness identified critical vulnerabilities in cryptographic libraries.

From the articleIn this episode of Unchained Premium, Zac Williamson, co-founder of Aztec, joined Laura to talk about Tierra, the V6 upgrade to Aztec’s private, fully decentralized layer 2 on Ethereum. The conversation covers the 24/7 AI audit harness that found critical vulnerabilities in…

This week’s newsletter describes a design for a single-issuer layer 2 whose users can redeem their bitcoin onchain without the issuer’s cooperation and summarizes a proposal for including hash preimages in output script descriptors. Also included are our regular sections…

Base Denim upgrade activates on mainnet, fourth protocol upgrade for Coinbase's Layer 2.

Gustavo Flores Echaiz and Brandon Black are joined by Adam Gibson, Vincenzo Palazzo, and João Dias to discuss Newsletter #428. The Bitcoin Optech Podcast and transcription content is licensed Creative Commons CC BY-SA 2.0 News ● Trust-minimized exits from a single-issuer layer…