The Chaincode Podcast

Sergi Delgado and Watchtowers, Lightning Privacy - Episode 28

Feb 2, 2023

59:25

Creator website

Highlights

AI Chapters

Episode notes

Altruistic Towers

02:23

The Watchtower Knows Your Payment Frequency

01:42

LMPENOT - Can L2 Make It Better?

01:49

Introduction

2min

Peer-to-Peer Research

3min

What Happened to the Bitcoin Core Team?

4min

How Did You Get Into Bitcoin?

3min

Bitcoin

2min

Should We Be Paying for Data Relay in the Lightning Network?

2min

Is HCLC Withholding a Good Idea?

3min

Watchtowers

5min

Building Bindings for Python to Rust

5min

10.

Is Your Software Doing Its Job?

2min

11.

Altruistic Towers

2min

12.

Watch Towers - What Kind of Privacy Considerations Did You Think About as You Built the AOS Satoshi?

4min

13.

Are Watchtowers a Part of the Lightning Network?

2min

14.

I'm Already Connected to You, I'll Do?

2min

15.

IOSA Toshi Is Going to Get Run by Chain Analytics Companies?

2min

16.

Watch Towers With Full RBF - What Is Our Right to Like?

4min

17.

Mobile Wallets - Watch Hours Make More Sinn

3min

18.

Watchtowers and L2 Storage

3min

19.

The Watchtower Knows Your Payment Frequency

2min

20.

LMPENOT - Can L2 Make It Better?

2min

21.

Watch Towers

3min

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 Suhas (07:32)

- An Empirical Analysis of Privacy in the Lightning Network (09:18)

- Lightning white paper, 2016 (09:48)

- Security and Privacy of Lightning Network Payments with Uncertain Channel Balances (13:38)

- Episode with Sergei on Probing

- Channel Jamming paper (13:50)

- Episode with Clara and Sergei

- Should we pay for failed payments? (14:19)

- HTLC withholding vs. HTLC hodling (15:48)

- Is Lightning flawed when it comes to privacy? (16:32)

- Watchtowers (17:44)

- Python PoC (21:49)

- ZmnSCPxj’s writing watchtowers

- Building on LDK (24:20)

- Transition to rust (24:45)

- Altruistic towers vs professional services (30:21)

- More privacy considerations in Lightning (34:11)

- Monitoring and reacting paradigm (44:04)

- Storage and Eltoo (50:06)

- Professional tower revenue models - subscription vs. bounties (53:00)

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