Rusty drops by to tell us about why privacy and robustness should be prioritized in Lightning.We discuss:LN symmetry (04:39)Do we want LN Symmetry to be symmetrical? (05:12)Listen to the conversation with instagibbsPeer to peer p

Elle Mouton⁠, Oliver Gugger⁠ and Simple Taproot Channels - Episode 33

Jul 17th, 2023 37m 18s

Elle Mouton and Oliver Gugger join us to talk with us about the Simple Taproot Channel proposal.We cover:Simple Taproot Channels Overview (1:29)What’s the state of the spec? (3:06)Changes to the scripts in Taproot Channels (4:31)Ref

Alekos Filini, Daniela Brozzoni and the Bitcoin Development Kit (BDK) - Episode 32

May 25th, 2023 31m 25s

Alekos Filini and Daniela Brozzoni visit the podcast to discuss the Bitcoin Development Kit (BDK). Hang out with them on the BDK Discord.We cover:How BDK started (00:48)Why is it named BDK and not the Magical Bitcoin Library? (2:10)

Tadge Dryja and Lightning History and everything else - Episode 31

Mar 22nd, 2023 57m 19s

Tadge Dryja chats with us about writing the Lightning Network paper and working in the Bitcoin space.We discussed:Could blocks be bigger? (0:59)Paper: On the instability of Bitcoin without the block reward (9:49)Serving billions with

Andrew Chow and the Bitcoin Core Wallet - Episode 30

Mar 10th, 2023 40m 36s

Andrew Chow joins us to discuss Bitcoin Core wallet development, PSBT, Output Descriptors, and HWI.We cover:- Why do we need a wallet in Bitcoin Core? (0:58)- Refactoring the Wallet codebase to build Output Descriptors (5:59)Should we rewri

Greg Sanders, SIGHASH_ANYPREVOUT, ephemeral anchors and LN symmetry (ELTOO) - Episode 29

Feb 15th, 2023 48m 35s

Greg Sanders joins us to discuss ANYPREVOUT, ephemeral anchors and LN symmetry (a.k.a. ELTOO).We chat about:- Package relay (2:07)- Pinning attacks (3:14)- BIP125- T-Bast’s pinning attack summary- Mempool policy (4:56)- Stuffing t

Sergi Delgado and Watchtowers, Lightning Privacy - Episode 28

Feb 2nd, 2023 59m 25s

Sergi Delgado joins us to discuss Watchtowers, his prior work in Bitcoin and Lightning privacy, Python vs. Rust and the impact of Eltoo.We cover:- Sergi’s prior research- Mapping Network Topology Research (02:46)- TxProbe paper- Andre

Pieter Wuille and Tim Ruffing - Nesting, ROAST, Half-Aggregation, Adaptor Signatures (part 2)

Dec 27th, 2022 52m 43s

We continue the conversation with Pieter Wuille and Tim Ruffing and Nesting, ROAST, Half-Aggregation, Adaptor Signatures, atomic swaps and more.If you have not tuned into the first part of this conversation, we recommend listening to that one

Pieter Wuille and Tim Ruffing, Schnorr, MuSig, FROST and more - Episode 26

Dec 16th, 2022 52m 32s

Pieter Wuille and Tim Ruffing treat us to a conversation about Schnorr, multi-signatures, MuSig, and more. We covered a lot so this is part one of a two part conversation.We discussed:- When to roll your own cryptography (01:31)- Schnorr Si

Clara Shikhelman and Sergei Tikhomirov and Channel Jamming on the Lightning Network - Episode 25

Nov 23rd, 2022 44m 12s

Clara and Sergei stop by to chat about their recent proposal on mitigating jamming attacks in the Lightning Network. We talk unconditional fees, local reputation, the impact on decentralization and UX, and the state of Lightning in general.We

Josibake, the Bitcoin Core wallet and wrangling bitcoin data - episode 24

Oct 21st, 2022 34m 33s

Josibake joins us to talk about his work on the Bitcoin Core wallet, bitcoin data and onboarding to bitcoin development.We discussed:- Analyzing historical transaction data (1:25)- Creating a publicly available dataset (4:12)- What cou

Steve Lee and Lightning updates / Stratum V2 - Episode 23

Sep 28th, 2022 43m 24s

Our topics:- Lightning Dev Kit (1:04)- Zeroconf Channels (2:22)- Rapid Gossip Sync (3:46)- How does LDK pick priorities? (8:55)- LDK Lite (10:12)- Will LSPs be needed forever? (12:25)- Validated Lightning Signer (15:20)- A L

0xB10C – Tracepoints and monitoring the Bitcoin network

Jun 6th, 2022 25m 9s

We catch up with 0xB10C about monitoring pools and tracing code execution in nodes.Our topics:- What he's been up to since the residency (1:05)- Monitoring the mempool (2:52)- Mempool Observer- Monitoring Mining pools (4:27)- Mining

Gloria Zhao and Package Relay - Episode 21

May 24th, 2022 26m 11s

Gloria Zhao sits down with us to discuss her package relay proposal and what it is like as a relative newcomer to propose a big change.- What's package relay? (1:04)- Mailing List: Package Relay Proposal- Why do people care about package

Martin Zumsande and Address Relay - Episode 20

May 13th, 2022 31m 50s

Martin Zumsande joins us to tell us about the address spam in the summer of 2021 and his interests in AddrRelay and Bitcoin Core development.We discuss with Martin:- His background (1:38)- Getting interested in Bitcoin (2:45)- How to approa

Sergei Tikhomirov and Lightning privacy - Episode 19

Feb 17th, 2022 1h

Postdoc Researcher Sergei joins Murch and Jonas to talk about channel balance probing in Lightning, privacy concerns in general, and the importance of researcher-developer collaboration.We discuss:- Sergei's background (1:50)- Sergei's ho

Block Building with Clara and Murch - Episode 18

Feb 1st, 2022 48m 47s

Postdoc Researcher Clara joins Murch to discuss their block building research. They cover their proposal, which outlines suggested improvements to the current Bitcoin Core block building algorithm using candidate sets.Murch and Clara discuss:

Sanket Kanjalkar and Miniscript - Episode 17

Nov 11th, 2021 45m 6s

Sanket describes to Murch his work on Miniscript. We explore uses for Miniscript, learn about intersections with PSBTs, Output Descriptors, and Taproot, and suss out the difference between Miniscript and Miniscript Policy.Note: This episode wa

Pieter Wuille & Amiti Uttarwar and the P2P network - Episode 16

Oct 26th, 2021 41m 24s

P2P experts Pieter and Amiti chat about the P2P network.In this episode they cover:- AddrRelay high-level goals and constraints (1:15)- Very different than the goals of blocks and transactions- Marginal fee rate (4:35)- Should we cons

Amiti Uttarwar and the P2P network - Episode 15

Oct 18th, 2021 41m 8s

Amiti returns to the Chaincode office to discuss all things p2p.We discuss:Why Amiti works on P2P (1:50)A framework for p2p design (4:25)How do we systemize Bitcoin Core knowledge? (6:20)Searchable #bitcoin-core IRC logs (8:35)Fo

Chaincode Decoded: Blockchain - Episode 14

May 27th, 2021 23m 6s

In this Chaincode Decoded segment we talk about the fundamental role of Bitcoin's blockchain and some of its peculiarities.We discuss:Purpose of the blockchain (0:40)Mining is a lottery, not a race (1:57)Why doesn't the same miner a

Matt Corallo and Lightning Development Kit - Episode 13

May 13th, 2021 31m 54s

In Episode 13, we sit down again with Matt Corallo and discuss his work on the Lightning Development Kit (LDK).In this conversation we cover:- Starting Rust-Lightning (1:20)- Language bindings challenges (4:09)- FFI (5:32)- Interoperab

Chaincode Decoded: Mempool - Episode 12

Apr 26th, 2021 26m 55s

The Chaincode Decoded segment returns and we jump into the deep end of the mempool.Child Pays for Parent (CPFP) (2:15)How miner evaluate fee rates (4:34)Why is it hard to estimate fee rates? (6:03)How do exchanges estimate fees? (8:0

Chaincode Decoded: Bech32m - Episode 11

Apr 16th, 2021 14m 43s

This revisits a segment we call Chaincode Decoded. In this episode, we'll learn how to say Bech32 and also what it and Bech32m are. Enjoy!Correction: The characters removed from the set are 1 B I O (2:20)Why do we need Bech32? (0:57)What

Carl Dong and Modularizing the Bitcoin Consensus Engine - Episode 10

Dec 15th, 2020 19m 23s

In part 2 of this sit down with Carl Dong, Murch and Jonas cover the delicate work of modularizing the Bitcoin consensus engine.In this conversation, we cover:- Carl's De-globalize ChainstateManager PR (2:25)- Async Block Processing PR