Jekyll2023-08-09T00:08:45+00:00https://podcast.chaincode.com/atom.xmlThe Chaincode PodcastA Podcast from Chaincode Labs about Bitcoin protocol developmentChaincode LabsRusty Russell - Privacy and Robustness in Lightning2023-08-08T00:00:00+00:002023-08-08T00:00:00+00:00https://podcast.chaincode.com/2023/08/08/rustyRusty schools us about why privacy and robustness to be prioritized in Lightning.

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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 associated implementations (22:19)

  • Expecting new implementations (26:22)

  • Privacy revisited (27:02)

  • What broke when the fee rate spiked? (31:21)
]]>Chaincode LabsElle Mouton and Oliver Gugger - Simple Taproot Channels2023-07-17T00:00:00+00:002023-07-17T00:00:00+00:00https://podcast.chaincode.com/2023/07/17/elle-oli-taproot-channelsElle Mouton and Oliver Gugger join us to talk with us about the Simple Taproot Channel proposal.

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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 Channels (15:52)
  • Why do PTLCs need Taproot funding outputs? (16:44)
  • Potential updates for the gossip protocol: Gossip 1.5 or Gossip 2.0 (18:13)
    • Gossip 2.0, private funding outputs (20:10)
    • Gossip 2.0 route finding challenges (22:48)
  • PTLCs (25:22)
  • Iterative approach or big push (27:19)
  • Recoverability of channel funds (33:06)
]]>Chaincode LabsAlekos Filini and Daniela Brozzoni - Bitcoin Development Kit (BDK)2023-05-25T00:00:00+00:002023-05-25T00:00:00+00:00https://podcast.chaincode.com/2023/05/25/BDK-alekos-danielaAlekos Filini and Daniela Brozzoni visit the podcast to discuss the Bitcoin Development Kit (BDK). Hang out with them on the BDK Discord.

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We cover:

  • How BDK started (00:48)

  • Why is it named BDK and not 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)

  • Why do devs keep building wallets from scratch? (10:05)

  • Greenwallet (13:03)

  • If you have a working wallet, should you switch to BDK? (16:25)

  • HWI complaints (see python) (17:41)

  • BDK 1.0 release features (22:31)

    • Sync
    • Planning module
]]>Chaincode LabsTadge Dryja - Lightning History and everything else2023-03-20T00:00:00+00:002023-03-20T00:00:00+00:00https://podcast.chaincode.com/2023/03/20/tadge-dryjaTadge Dryja chats with us about writing the Lightning Network paper and working in the Bitcoin space.

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We discussed:

]]>Chaincode LabsAndrew Chow – Bitcoin Core wallet2023-03-09T00:00:00+00:002023-03-09T00:00:00+00:00https://podcast.chaincode.com/2023/03/09/andrew-chowAndrew Chow joins us to discuss Bitcoin Core wallet development, PSBT, Output Descriptors, and HWI.

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We cover:

]]>Chaincode LabsGreg Sanders - SIGHASH_ANYPREVOUT, ephemeral anchors and LN symmetry (ELTOO)2023-02-15T00:00:00+00:002023-02-15T00:00:00+00:00https://podcast.chaincode.com/2023/02/15/greg-sandersGreg Sanders joins us to discuss ANYPREVOUT, ephemeral anchors and LN symmetry (a.k.a. ELTOO).

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]]>Chaincode LabsSergi Delgado - Watchtowers and Lightning Privacy2023-02-02T00:00:00+00:002023-02-02T00:00:00+00:00https://podcast.chaincode.com/2023/02/02/sergi-delgado-watchtowersSergi Delgado joins us to discuss Watchtowers, his prior work in Bitcoin and Lightning privacy, Python vs. Rust and the impact of Eltoo.

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We cover:

]]>Chaincode LabsPieter Wuille and Tim Ruffing - Nesting, ROAST, Half-Aggregation, Adaptor Signatures (part 2)2022-12-27T00:00:00+00:002022-12-27T00:00:00+00:00https://podcast.chaincode.com/2022/12/27/pieter-wuille-tim-ruffing-roast-aggregation-adaptor-sigsWe 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.

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We cover:

Further resources:

]]>Chaincode LabsPieter Wuille and Tim Ruffing - Schnorr, multi-sig, MuSig, FROST (part 1)2022-12-15T00:00:00+00:002022-12-15T00:00:00+00:00https://podcast.chaincode.com/2022/12/15/pieter-wuille-tim-ruffing-schnorr-musig-part1Pieter 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.

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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)
  • MuSig (25:07)
  • Interactive versus non-interactive protocols (35:30)
  • FROST (42:42)
]]>Chaincode LabsClara and Sergei – solving Lightning jamming2022-11-23T00:00:00+00:002022-11-23T00:00:00+00:00https://podcast.chaincode.com/2022/11/23/clara-sergei-lightning-jammingClara and Sergei drop 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.

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We discuss:

  • What is jamming and why is it free? (03:28)
  • How our jamming project started (06:29)
  • Prior work on jamming (07:45)
  • The desired properties of a solution (09:42)
  • Reputation (12:32)
  • Centralization concerns (14:02)
  • Unconditional fees (19:10)
  • How are unconditional fees delivered? (23:16)
  • UX implications (24:30)
  • Moving research results towards implementation (27:00)
  • Effects on balance probing (29:06)
  • Lightning as a messaging network (30:31)
  • Effects on watchtowers (32:42)
  • Reviews and feedback so far (34:02)
  • Future research ideas (34:40)
  • Privacy-preserving reputation (37:18)

Additional resources:

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