The Chaincode Podcast

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 instagibbs Peer to peer protocol (13:30) CTV (16:54) Pushing privacy and robustness to the front of the line (20:33) The dynamics of developing a spec with commercially

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) Refresher on CPFP carve-out and Anchor Outputs (8:19) Why Anchor Outputs need to use script path spends (10:24) Other goals of Simple Taproot Chann

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) The first users of BDK (3:30) Rust HWI (4:20) Built around descriptors (7:15) The ideal use case of BDK (7:30) Pain points (9:05) W

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 Lightning (10:40) The state of the debate when writing the Lightning Network White Paper (13:35) Would Lightning be possible without Segwit? (

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 rewrite the wallet? (10:30) - Changes to Coin Selection (11:35) - Wallet interoperability (17:10) - Hardware Wallet Integration (HWI) (18:20) - P

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 the mempool - 2017 (5:20) - Rewrite mempool or make the problem simpler (07:57) - Package relay RBF A.K.A. V3 (8:38) -

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  - Andrew Miller  - Coinscope  - Episode on Address Relay with Martin (04:28)  - Block-only connections PR by Suha

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 first. We cover: - Nesting (00:49) - ROAST (12:09) - Cross-input Signature Aggregation (18:49) - Half-aggregation (34:32)   - Hal

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 Signatures (09:01)   - Why is Schnorr preferable to ECDSA? (10:55) - Schnorr efficiency improvements (15:52) - Multisigs (23:16) - M

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 discuss: - What is jamming and why is it free? (03:43) - How our jamming project started (06:44) - Prior work on jamming (08:00) - The desi