📰 TLDR Newsletter – June 9 to June 16📰 TLDR Newsletter – June 9 to June 16

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📖 Read this issue directly: June 9 – June 16 Newsletter

1- Highlights1- Highlights

– 🚨 Sybil Attack on Libre Relay
Peter Todd revealed a sybil attack targeting Libre Relay nodes to block txs and raise costs for honest relays. Manual peering and Bitcoin Core’s feeler node system are potential defenses.

– 🔗 Well-Known Bitcoin Identity Endpoint
Aviv Bar-el proposed a draft BIP to enable HTTPS-based discovery of Bitcoin contact/payment info, building on the Lightning Address model.

– 🧬 Post-Quantum Commit/Reveal Proposal
Tadge Dryja floated a soft fork idea using commit/reveal to prep Bitcoin for quantum threats without jumping straight to PQ sigs.

2- Recent Threads2- Recent Threads

• Censorship Resistant Transaction Relay - Taking out the garbage(man)
  Bitcoin-dev | 🗣️ Peter Todd, John Carvalho
  • Sybil attack launched on Libre Relay nodes.
  • Mitigation via Bitcoin Core's feeler node system.
  • Manual peering with trusted nodes proposed.

• Post-Quantum commit / reveal Fawkescoin variant as a soft fork
  Bitcoin-dev | 🗣️ Tadge Dryja, Nagaev Boris, Sergio Demian Lerner
  • PQ cryptography integration discussed.
  • Soft fork with commit/reveal scheme proposed.

• Sybil resistance in coinjoin implementations
  Delving Bitcoin | 🗣️ 1440000bytes, securitybrahh
  • Joinmarket uses fidelity bonds to combat sybil attacks.
  • JoinStr adds aut-ct proofs and optional bonds for flexibility.

3- Active Discussions3- Active Discussions

• Against Allowing Quantum Recovery of Bitcoin
  Bitcoin-dev | 🗣️ Agustin Cruz, Jameson Lopp, Sjors Provoost +6
  • QRAMP proposal: Optional PQ keys → soft fork → deactivation of vulnerable outputs.

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