All Activity

Read the most recent individual posts in chronological order.

Students in engineering colleges and Bitcoin

By 1440000bytes

calendar icon

Original post on February 22, 2026 22:53 UTC

cyclic icon

Last reply on February 22, 2026 22:53 UTC

delvingbitcoin

The concern raised pertains to the quality of education in blockchain technology provided by top universities in India. It has been observed that the curriculum, specifically in the final semester of engineering degrees, includes a subject on blockchain.

How to linearize your cluster

By sipa

calendar icon

Original post on February 22, 2026 15:11 UTC

cyclic icon

Last reply on February 22, 2026 15:11 UTC

delvingbitcoin

The recent updates to Bitcoin Core demonstrate significant advancements in the project's development, showcasing the integration of Simplified Fee Logic (SFL) into its master branch. This development is marked by the merging of three pivotal pull requests (PR 32545, PR 34259, and PR 34023).

Introducing UltrafastSecp256k1: A Multi-Architecture Exploration of Secp256k1 Optimizations

1 reply

By shrec

calendar icon

Original post on February 22, 2026 12:05 UTC

cyclic icon

Last reply on February 23, 2026 00:28 UTC

delvingbitcoin

The development of UltrafastSecp256k1 represents a significant advancement in the field of Elliptic Curve Cryptography (ECC), particularly in optimizing performance across various hardware platforms. The project, which was open-sourced in early 2026, aims to leverage modern hardware features such as SHA-NI, AVX2, and ARM64 Assembly to enhance ECC performance.

Using AI tooling for code review

3 replies

By willcl-ark

Involving bytes, instagibbs+1 other

calendar icon

Original post on February 21, 2026 09:26 UTC

cyclic icon

Last reply on February 23, 2026 09:12 UTC

delvingbitcoin

The integration of artificial intelligence tools like Claude into the review process of software development projects, particularly in contexts such as the Bitcoin Core community, represents a significant stride towards enhancing efficiency and accuracy. This approach is designed to alleviate the traditional bottlenecks associated with reviewing pull requests (PRs) by automating aspects of the review process, thus complementing human reviewers' capabilities.

A Discussion on Quantum-Resistant Upgrade Paths for Bitcoin

By Noe

calendar icon

Original post on February 20, 2026 23:00 UTC

cyclic icon

Last reply on February 20, 2026 23:00 UTC

delvingbitcoin

The long-term security of Bitcoin hinges on its cryptographic foundations, which may be threatened by the advent of large-scale quantum computing. Presently, SHA-256, the hash function used by Bitcoin, holds up well against quantum attacks due to Grover's algorithm only providing a quadratic speedup, effectively halving its bit security but still remaining within acceptable limits.

Proposing a P2QRH BIP towards a quantum resistant soft fork

By Francus

calendar icon

Original post on February 19, 2026 02:44 UTC

cyclic icon

Last reply on February 19, 2026 02:44 UTC

delvingbitcoin

The discussion emphasizes the critical juncture Bitcoin has reached within mainstream finance, highlighting its need for long-term security or at least a perception of a clear path towards such security. The perspective presented suggests that the proposal might offer a solution that could quickly gain acceptance due to its potential in addressing the immediate concerns around Bitcoin's security and future stability.

Stateless VTXO Verification: Decoupling Custody from Implementa - tion-SpecificStacks

6 replies

By jgmcalpine

Involving instagibbs, ErikDeSmedt+1 other

calendar icon

Original post on February 18, 2026 20:03 UTC

cyclic icon

Last reply on February 21, 2026 16:20 UTC

delvingbitcoin

The VTXO ecosystem is undergoing significant transformations to accommodate various throughput and latency demands, leading to the emergence of the "Verification Gap." This issue arises from the unique custody model within the VTXO system, where spending authority requires both a private key and an off-chain transaction context known as the "Map." Unlike the L1 UTXO model, where transaction contexts are publicly accessible on-chain, VTXO contexts are ephemeral and maintained off-chain. This condition potentially jeopardizes user custody by tethering it to the proprietary software stacks of Ark Service Providers (ASPs), a situation termed "Implementation-Coupled Custody." To address these challenges, a Stateless VTXO Verification model, accompanied by a neutral "Audit Ingredient" schema, has been proposed to enable independent auditability, particularly enhancing security in no_std environments such as hardware wallets.

Deterministic UTXO consolidation under volatile fee regimes

By babyblueviper1

calendar icon

Original post on February 13, 2026 19:50 UTC

cyclic icon

Last reply on February 13, 2026 19:50 UTC

delvingbitcoin

The discourse delves into the nuanced considerations surrounding UTXO consolidation in the realm of cryptocurrency wallets, emphasizing not just fee optimization but also the implications on determinism and correctness during transaction construction. It highlights the dynamic nature of consolidation decisions influenced by the current fee environment, advocating for a strategic approach that takes into account time-dependent policies and compares fee rates against historical baselines.

The future of the Bitcoin Core GUI

16 replies

By janb84

Involving willclark, neonrooks+8 others

calendar icon

Original post on February 13, 2026 15:04 UTC

cyclic icon

Last reply on February 22, 2026 13:52 UTC

delvingbitcoin

The ongoing discourse within the Bitcoin Core community centers on the project's graphical user interface (GUI), specifically its potential deprecation and the broader implications for user accessibility and software development priorities. There is a recognition of the GUI's historical importance but also an acknowledgment of its minimal maintenance over recent years.

Bitcoin PIPEs v2

9 replies

By nemothenoone

Involving AdamISZ, cmp_ancp

calendar icon

Original post on February 12, 2026 16:56 UTC

cyclic icon

Last reply on February 23, 2026 14:08 UTC

delvingbitcoin

The introduction of Bitcoin PIPEs version 2 marks a significant evolution in the realm of Bitcoin transactions, offering a novel method to enforce spending conditions without altering the blockchain's consensus rules or introducing new trust mechanisms. Through the innovative use of cryptographic techniques, specifically witness encryption and Schnorr signatures, this approach permits the creation of conditional transactions directly on-chain.

Recent OP_RETURN output statistics

1 reply

By ajtowns

calendar icon

Original post on February 11, 2026 21:05 UTC

cyclic icon

Last reply on February 16, 2026 01:04 UTC

delvingbitcoin

The comprehensive analysis of blockchain transactions specifically focusing on OP_RETURN outputs between September 22, 2025, and February 11, 2026, uncovers several insightful trends and data usage patterns. During this timeframe, there were a total of 24,362,310 transactions that utilized OP_RETURN outputs, with a negligible difference noted in the count of individual OP_RETURN outputs which stood slightly higher at 24,363,011.

Hourglass V2 Update

2 replies

By theblackmarble

Involving orangesurf

calendar icon

Original post on February 10, 2026 20:54 UTC

cyclic icon

Last reply on February 10, 2026 22:17 UTC

delvingbitcoin

The Hourglass proposal, aimed at mitigating potential mass liquidation risks associated with Pay to Public Key (P2PK) funds, has been updated to include a more restrictive measure that limits the spend amount from such outputs to only one bitcoin per block. This change was proposed in response to community feedback and is detailed in the latest version available on GitHub, with prior discussions accessible through the Bitcoin development group.

The implications of this restriction are significant, considering that 1.7 million BTC held in P2PK outputs would take approximately 32 years to migrate under this new rule.

BIP 119 CTV activation client

By 1440000bytes

calendar icon

Original post on February 9, 2026 20:27 UTC

cyclic icon

Last reply on February 9, 2026 20:27 UTC

delvingbitcoin

Following the unanimous agreement on the activation parameters previously discussed, significant updates have been made to enhance accessibility and understanding regarding the deployment of CTV (BIP-119). The website now features a direct link to the activation client's repository, ensuring that interested parties can easily access the necessary tools and information for engagement.

Algorithm agility to defeat quantum and classical attacks on Bitcoin's signature algorithms

By EthanHeilman

calendar icon

Original post on February 9, 2026 19:56 UTC

cyclic icon

Last reply on February 9, 2026 19:56 UTC

delvingbitcoin

The discussion revolves around enhancing the security of Bitcoin against potential long-term threats, including both quantum and classical breaks in its signature algorithms. The proposal focuses on adding algorithm agility mechanisms to Bitcoin, allowing for an easier migration between different algorithm suites as needed.

Boomerang: Bitcoin Cold Storage with Built-In Coercion Resistance

1 reply

By bitryonix

calendar icon

Original post on February 9, 2026 05:36 UTC

cyclic icon

Last reply on February 14, 2026 12:54 UTC

delvingbitcoin

The Boomerang protocol emerges as a cutting-edge solution designed to significantly enhance security for bitcoin holders against physical coercion, such as kidnapping or threats, by complicating the process of forcibly signing transactions. This system introduces a unique duress mechanism that allows users to discreetly signal distress during coercive situations without tipping off the attacker, thereby marrying advanced security measures with user safety protocols.

Boomerang: Bitcoin Cold Storage with Built-In Duress Protection

By bitryonix

calendar icon

Original post on February 8, 2026 22:27 UTC

cyclic icon

Last reply on February 8, 2026 22:27 UTC

delvingbitcoin

Boomerang introduces a novel Bitcoin cold storage protocol aimed at enhancing physical security and resistance to coercion for individuals holding significant Bitcoin assets. This protocol integrates protocol-level duress protection directly into the custody process, making withdrawals intentionally unpredictable.

Bitcoin Inqusition 29.2

By ajtowns

calendar icon

Original post on February 7, 2026 13:49 UTC

cyclic icon

Last reply on February 7, 2026 13:49 UTC

delvingbitcoin

The latest release of Bitcoin Inquisition, version 29.2, is now available for download at GitHub. This version builds upon Bitcoin Core 29.3rc2 and introduces support for several proposed consensus changes aimed at enhancing the protocol's functionality and security.

A max-plus perspective on package relay and block assembly

2 replies

By GaloisField2718

Involving gmaxwell, GaloisField

calendar icon

Original post on February 6, 2026 22:57 UTC

cyclic icon

Last reply on February 7, 2026 20:53 UTC

delvingbitcoin

The discussion focuses on the complex dynamics within Bitcoin's operation, particularly concerning how package relay, Child Pays for Parent (CPFP), ancestor limits, and block assembly interact to impact transaction inclusion and block utilization. A conceptual framework is proposed to shed light on the economic incentives and marginal trade-offs that guide miners in constructing blocks.

Lehar / Parlour Paper

5 replies

By micah541

Involving AntoineP, micah+1 other

calendar icon

Original post on February 3, 2026 23:19 UTC

cyclic icon

Last reply on February 5, 2026 17:55 UTC

delvingbitcoin

The academic paper titled "Market Power and the Bitcoin Protocol" challenges the conventional wisdom surrounding Bitcoin miners' behavior by suggesting that miners may intentionally forgo potential transaction fees in the short term as part of a strategic decision to influence average transaction fees over time. This perspective introduces the notion that miners engage in complex economic interactions within the Bitcoin network, potentially sacrificing immediate gains for higher future returns.

Would OP_SUCCESS (OP_CAT) be spent?

15 replies

By Nuh

Involving murch, bytes+2 others

calendar icon

Original post on February 3, 2026 19:41 UTC

cyclic icon

Last reply on February 13, 2026 20:17 UTC

delvingbitcoin

The exploration of cryptocurrency transactions, specifically within the context of blockchain technology, reveals a detailed scrutiny of a particular transaction's execution and validation processes. This transaction navigates through the Mara slipstream network, emphasizing the critical role of encoded instructions and the precision required in their formulation.

BLISK: Boolean circuit Logic Integrated into the Single Key

14 replies

By olkurbatov

Involving juja, nkohen+2 others

calendar icon

Original post on January 26, 2026 23:23 UTC

cyclic icon

Last reply on February 16, 2026 20:53 UTC

delvingbitcoin

The recent development in Bitcoin's authorization policies has introduced a novel method for encoding complex Boolean logic into transaction validations. This approach aims to overcome the limitations of traditional mechanisms like threshold/multisignatures and script-based methods by incorporating more nuanced control over Bitcoin spending permissions.

Disposing of "dust attack" UTXOs

18 replies

By harris

Involving bubbes, gmaxwell+6 others

calendar icon

Original post on January 25, 2026 17:20 UTC

cyclic icon

Last reply on February 20, 2026 05:54 UTC

delvingbitcoin

The phenomenon of "dust attacks" on cryptocurrency wallets poses a significant challenge within the blockchain community. These attacks involve sending tiny amounts of cryptocurrency to various addresses with the intent to compromise user privacy by linking these transactions.

Bitcoin as Digital Latin: Asymptotic Ossification and the End of Semantic Drift

1 reply

By ZmnSCPxj

Involving brandenwithane

calendar icon

Original post on January 25, 2026 05:18 UTC

cyclic icon

Last reply on February 3, 2026 11:18 UTC

delvingbitcoin

The concept of "Digital Latin" analogizes the Bitcoin Layer 1 protocol to Latin, emphasizing its need to become a fixed, immutable foundation resistant to changes. This comparison is drawn from the characteristic stability of dead languages, which, unlike living languages, do not undergo semantic drift.

Argo: a garbled-circuits scheme for 1000x more efficient off-chain computation

By RobinLinus

calendar icon

Original post on January 22, 2026 02:12 UTC

cyclic icon

Last reply on January 22, 2026 02:12 UTC

delvingbitcoin

The exploration of off-chain cryptography has led to more advanced and expressive smart contracts within the Bitcoin ecosystem. Innovations such as BitVM have introduced the use of SNARKs (Succinct Non-Interactive Arguments of Knowledge) to facilitate the proof of arbitrary computation, alongside garbled circuits which allow for the verification of these proofs to be efficiently moved off-chain.

Programming Lightning: An Introduction to Payment Channels

By beige-coffee

calendar icon

Original post on January 21, 2026 20:43 UTC

cyclic icon

Last reply on January 21, 2026 20:43 UTC

delvingbitcoin

Programming Lightning is an educational initiative aimed at providing developers and technically inclined individuals with a hands-on understanding of the Lightning network. This project, supported by grants from Spiral and HRF, draws inspiration from "Programming Bitcoin" and strives to teach the inner workings of Lightning through practical coding exercises.

OP_CAT and Bitcoin’s Path to Quantum Resistance

2 replies

By jsarenik

Involving sCryptts

calendar icon

Original post on January 20, 2026 09:14 UTC

cyclic icon

Last reply on January 30, 2026 11:21 UTC

delvingbitcoin

The security foundation of Bitcoin is significantly anchored in its use of elliptic curve cryptography. This cryptographic technique ensures the generation of Bitcoin signatures with private keys while safeguarding against the reverse engineering of these private keys from public keys, a task deemed nearly impossible with conventional computing power.

BIP352: PSBT support

By nymius

calendar icon

Original post on January 16, 2026 13:40 UTC

cyclic icon

Last reply on January 16, 2026 13:40 UTC

delvingbitcoin

The ongoing development of a Bitcoin Improvement Proposal (BIP) focuses on introducing changes to enhance spending silent payment outputs. This effort is documented through a GitHub gist and a mailing list post, both of which provide comprehensive details about the proposed modifications.

A Mathematical Theory of Payment Channel Networks

1 reply

By anon

Involving renepickhardt

calendar icon

Original post on January 16, 2026 00:54 UTC

cyclic icon

Last reply on January 16, 2026 14:45 UTC

delvingbitcoin

A recent scholarly paper published on arXiv provides a comprehensive geometric framework aimed at understanding several phenomena observed in payment channel networks, with a particular focus on the Lightning Network. This study revisits well-known challenges such as channel depletion and capital inefficiency in two-party channels while introducing a unified structural explanation that encompasses these issues.

Silent Payments notifications via Nostr

4 replies

By setavenger

Involving RubenSomsen

calendar icon

Original post on January 15, 2026 23:09 UTC

cyclic icon

Last reply on February 14, 2026 15:45 UTC

delvingbitcoin

The conversation delves into the challenges and strategies of enhancing transaction verification within blockchain frameworks, particularly focusing on Silent Payments and their integration with Nostr for notifications. It outlines a proposed method to notify recipients about incoming transactions using stealth addresses, emphasizing the importance of including crucial data such as the transaction ID (txid), tweak, and an optional confirming blockhash or height.

Hornet UTXO(1): A custom, constant-time, highly parallel UTXO database

8 replies

By tobysharp

Involving stickies-v, optout+2 others

calendar icon

Original post on January 11, 2026 21:25 UTC

cyclic icon

Last reply on January 28, 2026 18:08 UTC

delvingbitcoin

The Hornet UTXO(1) database represents a significant leap forward in Bitcoin client technology, specifically designed to enhance consensus validation efficiency. Developed as part of the experimental Hornet Node project, this new database is built from the ground up using modern C++ for maximum parallelism, achieving remarkable improvements in throughput for Bitcoin consensus validation processes.

A simple backup scheme for wallet accounts

By pyth

calendar icon

Original post on January 10, 2026 08:18 UTC

cyclic icon

Last reply on January 10, 2026 08:18 UTC

delvingbitcoin

The discussion revolves around a proposed change in the default encryption algorithm from AES-GCM to CHACHA20. The suggestion emphasizes the significance of integrating this change into the core, highlighting the advantage of not needing to introduce new dependencies solely for this purpose.

Incremental mutation testing in the Bitcoin Core

By bruno

calendar icon

Original post on January 8, 2026 13:30 UTC

cyclic icon

Last reply on January 8, 2026 13:30 UTC

delvingbitcoin

Mutation testing serves as a crucial technique in software testing, aiming to evaluate the effectiveness of test suites by introducing mutants into the source code and observing if existing tests can detect these changes. In the context of Bitcoin Core, a weekly mutation testing cycle is conducted on the master branch, where mutants are generated and assessed through unit, functional, and fuzz testing.

Provable Cryptography for Bitcoin: An Introduction (Workbook)

By marathon-gary

calendar icon

Original post on January 7, 2026 15:08 UTC

cyclic icon

Last reply on January 7, 2026 15:08 UTC

delvingbitcoin

The email highlights a resource pertinent to cryptography but not exclusively centered on Bitcoin, directing attention to Joy of Cryptography. This reference serves as an additional tool for those interested in the broader field of cryptography, offering insights and information beyond the specific realm of Bitcoin.

Bithoven: A Formally Verified, Imperative Smart Contract Language for Bitcoin

8 replies

By ChrisCho-H

Involving ftw, ChrisChoH+2 others

calendar icon

Original post on January 6, 2026 18:23 UTC

cyclic icon

Last reply on February 13, 2026 01:58 UTC

delvingbitcoin

The introduction of Bithoven marks a significant advancement in the realm of smart contract languages, aiming to meld structured correctness with imperative control flow syntax reminiscent of C. This initiative is designed to enhance ease of use for developers while meeting the stringent safety requirements essential for Bitcoin Script operations. Bithoven's utilization of an LR(1) parser and static analysis techniques is intended to ensure type safety and prevent common security vulnerabilities, such as unauthorized spending without a signature.

Bitcoin Core v30.1 Released

By fanquake

calendar icon

Original post on January 2, 2026 16:08 UTC

cyclic icon

Last reply on January 2, 2026 16:08 UTC

delvingbitcoin

The latest version of Bitcoin Core, v30.1, is now available for download. This new release brings with it several new features, a range of bug fixes, and performance enhancements alongside updated translations.

Ark as a Channel Factory: Compressed Liquidity Management for Improved Payment Feasibility

7 replies

By instagibbs

Involving ErikDeSmedt, renepickhardt+2 others

calendar icon

Original post on December 31, 2025 11:42 UTC

cyclic icon

Last reply on January 6, 2026 14:16 UTC

delvingbitcoin

The discourse elaborates on the potential and challenges of scaling Bitcoin payments through the Lightning Network, particularly focusing on the network's structural limitations due to its reliance on liquidity availability. It introduces a novel solution named Ark, which aims to address these limitations by facilitating multi-party state updates and utilizing virtual UTXOs (vTXOs) managed by an Ark Service Provider (ASP).

OP_CC: A simple introspection opcode to enable cheaper consolidations

15 replies

By CubicEarth

Involving conduition, murch+6 others

calendar icon

Original post on December 30, 2025 12:53 UTC

cyclic icon

Last reply on February 7, 2026 13:48 UTC

delvingbitcoin

The introduction of OP_CHECKCONSOLIDATION (OP_CC) proposes a significant enhancement in the Bitcoin network's efficiency by optimizing consolidation transactions. This opcode streamlines the process by allowing subsequent inputs from the same scriptPubKey (SPK) to bypass individual signatures after the first input, leveraging that initial signature for validation.

A Proposal for Trustless Custody

By ynniv

calendar icon

Original post on December 22, 2025 00:28 UTC

cyclic icon

Last reply on December 22, 2025 00:28 UTC

delvingbitcoin

The person behind the proposal has introduced an innovative Layer 3 protocol aimed at addressing some of Bitcoin's significant challenges, particularly around trust and custody in transactions. They underline that despite Bitcoin's revolutionary presence in the financial world, it inherently suffers from compromises such as slow transaction speeds compared to traditional card payments, high transaction fees for small amounts, and limited functionality restrained by game theory.

Scaling Noncustodial Mining Payouts with CTV

By coinjoinkillua

calendar icon

Original post on December 20, 2025 17:48 UTC

cyclic icon

Last reply on December 20, 2025 17:48 UTC

delvingbitcoin

In the domain of cryptocurrency mining, there's a nuanced debate regarding the preferences of miners, also known as hashers, when it comes to choosing between custodial services and self-sovereignty. A common assumption prevails that most miners would opt for a custodian that charges slightly higher rewards fees in exchange for managing the complexities associated with mining.

Major BIP 360 Update

21 replies

By cmp_ancp

Involving murch, leishman+8 others

calendar icon

Original post on December 19, 2025 20:46 UTC

cyclic icon

Last reply on February 13, 2026 23:02 UTC

delvingbitcoin

The comprehensive rewrite of BIP 360, spearheaded by Ethan Heilman, Isabel Foxen Duke, and Hunter Beast, marks a significant evolution in Bitcoin's approach to enhancing security against quantum computing threats. This revision introduces "Pay-to-Tapscript-Hash (P2TSH)," a novel output type designed to omit the key path spend, thereby mitigating vulnerabilities associated with Elliptic Curve Cryptography (ECC) without incorporating post-quantum signature schemes.

Measuring minrelaytxfee across the Bitcoin network

By danielabrozzoni

calendar icon

Original post on December 18, 2025 14:31 UTC

cyclic icon

Last reply on December 18, 2025 14:31 UTC

delvingbitcoin

In a recent network crawl conducted on December 17, 2025, significant changes were observed in the acceptance of low fee filters by network nodes compared to measurements taken in September of the same year. Initially, only 2.0 percent of nodes accepted a low feefilter on September 10, which slightly increased to 3.9 percent by September 15. However, by December 17, there was a notable rise to 27.7 percent.

A quantum resistance script only using op_ctv/op_txhash and no new signatures

6 replies

By simul

Involving reardencode

calendar icon

Original post on December 18, 2025 23:27 UTC

cyclic icon

Last reply on February 20, 2026 18:54 UTC

delvingbitcoin

The email presents a detailed exploration of enhancing Bitcoin transactions' security against quantum attacks and signature forgery through a novel method combining OP_CHECKTEMPLATEVERIFY (OP_CTV) and OP_TXHASH/OP_CHECKTXHASHVERIFY protocols, as per BIP119 and a draft proposal. This approach entails creating a multi-phase envelope to safeguard transactions.

ZK-Statechains Without States

2 replies

By evd0kim

Involving instagibbs, evdkim

calendar icon

Original post on December 16, 2025 19:47 UTC

cyclic icon

Last reply on December 17, 2025 21:17 UTC

delvingbitcoin

The introduction of statechains to the Bitcoin ecosystem over six years ago marked a pivotal step towards enhancing user privacy and transaction efficiency. The evolution of this concept, particularly through Commerce Block's Mercury Layer and the further innovation of incorporating blinded signing, has significantly refined the way statechains function.

BMAX: pricing “sats now vs sats later” via a mining sharechain (no L1 changes, no custodians, no oracles)

8 replies

By coinjoinkillua

Involving VzxPLnHqr, optout+1 other

calendar icon

Original post on December 16, 2025 19:00 UTC

cyclic icon

Last reply on January 20, 2026 17:57 UTC

delvingbitcoin

The dialogue revolves around a series of proposed updates and critiques concerning the design and operational mechanics of a Bitcoin-related project, presumably called BMAX. The focus is on how shares within this system are managed, particularly in relation to mining difficulty and rewards distribution.

Response to Pieter Wuille's StackExchange Answer Re: Nuking the Opreturn Filter

By coinjoinkillua

calendar icon

Original post on December 15, 2025 12:53 UTC

cyclic icon

Last reply on December 15, 2025 12:53 UTC

delvingbitcoin

The discussion emphasizes the importance of maintaining neutrality and fairness in the development and implementation of protocols, particularly in relation to spam filtering. It argues against the inclusion of arbitrary filters within the core client by default, as this could potentially reinforce social stratums or subjective aspects of the protocol.

Modifying BIP54 to Support Future nTime Soft Fork

5 replies

By gmaxwell

Involving ajtowns, AntoineP+1 other

calendar icon

Original post on December 15, 2025 00:36 UTC

cyclic icon

Last reply on December 18, 2025 04:36 UTC

delvingbitcoin

The discourse on BIP54 and its implications for blockchain technology delves into the intricacies of preventing timewarp attacks while addressing future challenges, namely the nTime overflow issue. A proposed modification suggests incorporating a u64 timestamp within the coinbase transaction as a means to mitigate the timewarp attack.

Writing version 2 of my Bitcoin Game Theory book with de Gruyter, what should I cover?

1 reply

By chness

Involving micah

calendar icon

Original post on December 12, 2025 23:39 UTC

cyclic icon

Last reply on January 6, 2026 00:39 UTC

delvingbitcoin

The current initiative to update a book underscores the significance of community feedback in refining its contents. This process aims at ensuring the material's relevance and accuracy by inviting suggestions on potential improvements or corrections.

SHRINCS: 324-byte stateful post-quantum signatures with static backups

17 replies

By MikKud

Involving EthanHeilman, gmaxwell+3 others

calendar icon

Original post on December 11, 2025 08:40 UTC

cyclic icon

Last reply on February 12, 2026 14:17 UTC

delvingbitcoin

SHRINCS is a novel signature scheme that merges the advantages of stateful and stateless hash-based signatures, aiming to create a versatile solution for scenarios requiring a limited number of signatures from a given key. It employs an unbalanced XMSS tree for its stateful component and a variant of SPHINCS+ for stateless operations, which optimizes performance under regular conditions and ensures reliability in cases of state loss or corruption.

Bitcoin Lightning Wallets as Abstracted Accounts in EVM Protocols

By evd0kim

calendar icon

Original post on December 9, 2025 12:26 UTC

cyclic icon

Last reply on December 9, 2025 12:26 UTC

delvingbitcoin

The recent initiative by SatsBridge introduces a pioneering protocol that integrates Bitcoin's Lightning Network (LN) with Ethereum's smart contract capabilities, focusing on enhancing user experience and security in cross-chain wallet architecture. This protocol utilizes LNURL AUTH to extend its application towards managing Ethereum abstracted accounts, thus enabling Lightning wallets to serve as remote signers for these accounts without necessitating any modifications to the existing Lightning wallets.

BIP The Cat - Draft discussion

2 replies

By Claire

Involving billymcbip

calendar icon

Original post on December 9, 2025 23:52 UTC

cyclic icon

Last reply on December 15, 2025 18:22 UTC

delvingbitcoin

The proposal titled "The Cat," available on GitHub, presents a new strategy for limiting the use of Bitcoin for non-monetary purposes, specifically targeting protocols like inscriptions and Stamps-style applications. These currently account for a significant portion of the Bitcoin network's Unspent Transaction Output (UTXO) set, which is a critical element in Bitcoin's blockchain management.

Proposal: Limit ScriptPubKey length, with one exception

2 replies

By billymcbip

Involving RobHam , billymcbip

calendar icon

Original post on December 8, 2025 18:34 UTC

cyclic icon

Last reply on December 10, 2025 12:49 UTC

delvingbitcoin

A recent proposal highlights a novel approach towards managing the ScriptPubKey length in UTXO transactions within blockchain networks. The suggestion includes implementing a limit of 260 bytes on the ScriptPubKey length for new UTXOs, introducing an exception for transactions in blocks divisible by 256 without remainder.

Scheduled (Delayed) Transaction Broadcast

8 replies

By ArmchairCryptologist

Involving optout, arminsdev+2 others

calendar icon

Original post on December 8, 2025 14:46 UTC

cyclic icon

Last reply on January 28, 2026 19:32 UTC

delvingbitcoin

The discourse on integrating a scheduled transaction broadcast feature into Bitcoin Core delves into its potential to enhance user privacy and strategic transaction management. This proposed functionality allows users to set transactions for future execution, either based on a specific time or block height, addressing needs such as disguising the transaction creation time or preparing for future conditions unsuitable for current bitcoin scripts.

Disclosure: Critical vulnerabilities fixed in LND 0.19.0

5 replies

By morehouse

Involving ariard, morehouse +2 others

calendar icon

Original post on December 4, 2025 20:02 UTC

cyclic icon

Last reply on December 6, 2025 15:31 UTC

delvingbitcoin

The recent release of LND version 0.19.0 marks a significant advancement in addressing critical security vulnerabilities within the Lightning Network Daemon (LND), underscoring an ongoing effort to enhance the platform’s security posture. This update, available at LND 0.19.0, introduces essential fixes aimed at mitigating one denial of service (DoS) vulnerability and two theft of fund vulnerabilities.

Vanadium: A Virtualized Secure Enclave for Hardware Signing Devices

By salvatoshi

calendar icon

Original post on December 3, 2025 19:54 UTC

cyclic icon

Last reply on December 3, 2025 19:54 UTC

delvingbitcoin

Vanadium represents a novel approach to developing firmware applications for hardware signing devices, addressing the longstanding challenges faced in embedded development such as limited RAM and flash memory, slow iteration cycles, and the complexities of debugging. Developed as a RISC-V Virtual Machine capable of running in an embedded Secure Element, Vanadium offers a significant departure from traditional development constraints by enabling the execution of arbitrary applications, termed "V-Apps," within a secure enclave environment.

BIP352 private key formats

By craigraw

calendar icon

Original post on December 3, 2025 11:19 UTC

cyclic icon

Last reply on December 3, 2025 11:19 UTC

delvingbitcoin

The discussion centers around the proposal of a new BIP (Bitcoin Improvement Proposal) that aims to introduce an alternative output descriptor format, denoted as sp(). This initiative stems from the consideration of various ideas presented in a previously referenced PR (Pull Request).

Building a vault using blinded co-signers

2 replies

By halseth

Involving Nuh , halseth

calendar icon

Original post on December 3, 2025 12:38 UTC

cyclic icon

Last reply on December 10, 2025 14:15 UTC

delvingbitcoin

A new prototype aimed at bolstering Bitcoin security through a vault-like scheme has been introduced, integrating the concept of blinded co-signers with Musig2, a multi-signature protocol. This innovative approach emphasizes minimizing the information available to co-signers about transactions to enhance the protection of fund movements on the blockchain.

Optimistic mining tip (slow block propagation)

6 replies

By AntoineP

Involving optout, AntoineP +2 others

calendar icon

Original post on December 3, 2025 10:41 UTC

cyclic icon

Last reply on December 5, 2025 15:10 UTC

delvingbitcoin

The cryptocurrency community has been actively discussing the challenges associated with slow block propagation, particularly focusing on how it affects miners. An intriguing aspect of this discussion is the concept of optimistic mining, a method that allows miners to begin working on a new chain tip before its validation is completed.

BIP-119 (OP_CHECKT - EMPLATEVERIFY)(no activation)

By moonsettler

calendar icon

Original post on December 2, 2025 01:24 UTC

cyclic icon

Last reply on December 2, 2025 01:24 UTC

delvingbitcoin

The discussion centers on the technical complexity and implications of integrating specific primitives like OP_CSFS into blockchain technology to influence miner behavior, specifically to disincentivize the inclusion of third-party transactions. The initial assertion challenges the clarity and practical application of these combined primitives in creating effective smart contracts for this purpose.

Outgoing Reputation: Simulation Results and Updates

By ClaraShk

calendar icon

Original post on December 1, 2025 14:50 UTC

cyclic icon

Last reply on December 1, 2025 14:50 UTC

delvingbitcoin

A concern was raised regarding the potential for attackers to manipulate the reputation system in Lightning Network protocols, specifically targeting the mechanism by which reputations are calculated based on response times to payment requests. The mechanism under scrutiny allows for a 90-second window for replies; however, an attacker could exploit this by timing their responses such that they reply within the window while causing the next node in the sequence to exceed this limit due to inherent network delays.

Spanning-forest cluster linearization

11 replies

By sipa

Involving blockchainhao, gmaxwell

calendar icon

Original post on February 5, 2025 01:08 UTC

cyclic icon

Last reply on February 22, 2026 15:05 UTC

delvingbitcoin

The discussion begins with an examination of the spanning-forest cluster linearization algorithm, a novel approach aimed at enhancing the efficiency of Bitcoin Core's transaction processing. This method, despite its absence of known complexity bounds, offers elegance, speed, and practicality in prototype implementations.

LN-Symmetry Project Recap

16 replies

By instagibbs

Involving ajtowns, rustyrussell+2 others

calendar icon

Original post on January 5, 2024 18:03 UTC

cyclic icon

Last reply on January 22, 2026 19:09 UTC

delvingbitcoin

The LN-Symmetry Project has taken significant strides in advancing the eltoo proposal, transforming it into research-quality software aimed at enhancing the Lightning Network's efficiency and reliability. Through meticulous development, the project has introduced basic functional tests for various channel operations, including openings, payments, and unilateral closes, among others.

Bitcoin Logo

TLDR

Join Our Newsletter

We’ll email you summaries of the latest discussions from high signal bitcoin sources, like bitcoin-dev, lightning-dev, and Delving Bitcoin.

Explore all Products

ChatBTC imageBitcoin searchBitcoin TranscriptsSaving SatoshiDecoding BitcoinWarnet
Built with 🧡 by the Bitcoin Dev Project
View our public visitor count

We'd love to hear your feedback on this project.

Give Feedback