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Guests:
Otavio (Tavi) Costa – Founder & CEO, Azuria Capital
Alexandre Laizet – Deputy…

Smart Window can handle some busywork.

OpenAI just released GPT-6.1 Terra in ChatGPT Work and Codex. Shoul...

Explore OpenAI's model guide: https://learn.chatgpt.com/docs/models

OpenAI has released GPT-6.1 Terra, but where does it fit alongside Sol and Astra? I break down what Terra is designed for, OpenAI's reported improvements, its API pricing and where to find…

A nonprofit service that protects internet users’ privacy is leaving France. Quad9, a free DNS resolver, has said it will reluctantly stop serving users in France on November 24. This follows a

Miner-side job declaration, where the miner builds their own block template, is standardized in Stratum V2 and has real mainnet precedent in DATUM. That closes one half of a non-custodial pool’s problem: the miner already doesn’t have to trust the pool’s…

Abstract: @remix7531 and I are publishing libshrincs, a proof-of-concept C implementation of WOTS+C with machine-checked proofs of functional correctness and security. WOTS+C is the one-time signature scheme used by SHRINCS, a post-quantum signature scheme…

BIP110 Situation Monitor I have made a BIP110 situation monitor which tracks live miner signalling data and shows the chain tip of both a core node and bip110 node to flag forks. It also has a visual guide to the activation paths & forking dynamics. Finally…

Since there were no objections to the activation parameters shared in the last email, I have updated the website with the repository link for activation client and added some FAQs. Repository: GitHub - ctv-activation/activation-client // Deployment of CTV…

Introduction The FROST scheme is based on Verifiable Secret Sharing, where signers first perform Shamir Secret Sharing in homomorphic space, then each signer stores the generated share it has of the final key. However, this is slightly undesirable compared…

A clockless vardiff strands a slowing miner A note on where this came from. This began as an attempt to optimize vardiff, not to write about it. We were building a controller to track a miner more tightly, and noticed that an asymmetric response — quick…

Summary This post details two distinct Denial-of-Service (DoS) vulnerabilities discovered in Core Lightning (CLN). Both vulnerabilities allowed a remote peer to trigger unbounded memory growth, ultimately leading to Out-of-Memory (OOM) system crashes. The…

Bitcoin Core version 31.1 is now available from: https://bitcoincore.org/bin/bitcoin-core-31.1/ This release includes various bug fixes and performance improvements, as well as updated translations. Please report bugs using the issue tracker at GitHub:…

Neat idea, basically taproot but with a hash. Yeah that could be an option, but like @sipa points out, it would only be quantum-secure before the first spend. This would essentially be trading standalone PQ safety for 32 bytes more efficient EC spending…

I’m sharing a small proof-of-concept for zkPoH, a Zero-Knowledge Proof of Hodl system for Bitcoin. The idea is simple: prove that you control a set of Bitcoin UTXOs whose combined value is at least 1 BTC, without revealing the UTXOs, addresses, exact balance…

Originally published on my site. Replicating here because I think the Delving audience has an interest in this work. From the project’s inception until now, btc-verified has been focused on building up, layer by layer, a very minimal model of consensus.…

I’d like feedback on a draft that standardizes the policy a co-signer enforces, not the co-signer itself. A co-signer that signs only when a predicate holds is a known way to emulate covenants today. Towns described the multisig version of this in 2021.…

Abstract. BIP-352 does not recommend FROST- / MuSig2-based inputs “due to lack of a security proof”. This post describes a protocol that lets a multiparty sender perform a secure Silent Payment: the wallet computes an ECDH share as a weighted sum of the signers’…

Bitcoin payments are now spread across many so-called “layers”, and there isn’t a sufficiently generic way to make payments between them. In most cases, each layer has to run a Lightning node, and its users are more or less dependent on that node’s operator…

Hello Conduition, I fully agree with you that improving security and privacy and performance are worthy goals, though we’re living in the mere world of engineering where there is never a free lunch. Where I can be skeptical, it’s on the wallet and node complexity…