PDX BitDevs Socratic Seminar #42

Announcements

Please join us for our next Socratic Seminar. A special thank you to our host Primal Burger, for the event space. Please support them by buying their delicious food or a beverage.

If you can't make it to the main event please join us at Lutz Tavern around 9PM here.

Special Thanks | Mentions

• Thank you to everyone who shows up each month!

Rules

• Respect people's privacy
• Chatham House Rules
• Interaction and asking questions are encouraged!

Requests

• A guest speaker for February 2026

Schedule

• 6:00pm - 6:30pm: Arrive, socialize, and grab some food.
• 6:30pm - 7:00pm: Libitcoin Discussion + Demo
• 7:00pm - 8:00pm: Developer Topics and Discussion

Bitcoin Dev News

• Liquid Pegin Tool
  • Repo
  • Notes
    • Python + RPC
    • Looks Vibe Coded (Not bad for this application)
    • Does not give you a way to trustlessly peg out of Liquid
• Mempool Editor
  • Repo
  • Notes
    • Written in rust
    • Splits the TUI from the core logic
    • Deserialize logic! (Go over this!)
    • Injection and fun
    • Private Mempool?
• Rust Bitcoin - Fix | Duplicate Inputs
  • Notes
    • Applies to transaction SERDE (Serialize / Deserialize)
• Bitcoin Core Miniscript FFI
  • Repo
  • Notes
    • Uses the latest Bitcoin Core V30.2
    • Good for cross checking and validation or a direct replacement for descriptor logic in Rust
    • Safe'ish unsafe
    • Great for fuzzing and finding divergences in implementations
    • Crates.io (Why you should use it)
• Citrea Goes Live
  • Notes
    • I still have not got credit for my Testnet Pegin 😂
    • Wallet list is pretty bad
    • Whole coin numbers must be used for Pegin (https://citrea.xyz/bridge)
    • Docs (https://docs.citrea.xyz/developer-documentation/clementine-cli)
• TX_HASH assigned BIP 346
  • Notes
    • Field Selection Stack Element
    • Hash of that element set, does it match in the spending TXN
• Feature Negotiation BIP 434
  • Notes
    • Prior to this a new version had to be rolled out to get new protocol messages added
    • Size limits imposed
    • Allows for compat longterm with other node without partitioning the network
• FIBRE - Resurrection
  • Notes
    • Bitcoin Core Fork (v30.0)
    • FEC encoding
    • UDP Peer Multicast
    • https://en.wikipedia.org/wiki/Multicast
• Binary Output Descriptors BIP 391
  • Notes
    • Really made for machine to machine descriptor transport
    • Add headers
• Silent Payment Electrs
• Mutation Testing
  • Notes
    • Fuzzing
• Constant Time UTXO Database
  • Notes this is largely why UTXO set bloat will not be an issue long term
• Bitcoin Core Wallet Migration Bug
  • Issue
  • Fix
• Request - BIP360
• Sparrow Creator - Proposal Silent Payments
• LIBSECP256K1 0.7.1 Released
• Unbreaking Testnet 4
• Portland BitDevs Internal Topic: Covenants?

Bitcoin General News

• Steak 'n Shake Buys More BTC

Tech News

• DDR5 Prices Continue Relentless Climb
• SSD Prices begin ascent