Socratic Seminar 55
2025-02-06
Housekeeping
- This meetup is generously sponsored by Presidio Bitcoin, Pubkey, and Bitnomial.
- Questions are encouraged, including basic ones!
- Socratic Seminars are held under the Chatham House Rule: share the information you receive, but do not reveal the identity of who said it.
- For the privacy of other attendees, please refrain from taking photographs of other people without their permission.
- Socratic seminars are best when the moderator can let the conversation flow, so try to keep things concrete and focused.
- The reading list covers December 12th to February 3rd.
Chain Weather Report
- Clark Moody Dashboard
- Mempool
- Block Fee Rates
- Block Rewards 1m
- Fifteen OFAC-sanctioned transactions missing from blocks
- DATUM revives use of "Coin Age Priority"
- What's going on with testnet4
News & Announcements
- Ross Ulbricht granted full and unconditional pardon
- Tornado Cash OFAC sanctions overturned
- Coinbase launches Bitcoin-backed loans
- Bitcoin Miner MARA Lends 16% of Its 44,893 BTC Reserves
- Lava raises $10 million in a Series A funding round led by Khosla Ventures and Founders Fund
- Relai secures $12 million in a Series A funding round led by Ego Death Capital
- AnchorWatch launches in the US
- Bull Bitcoin adds payjoin support
- Blockstream releases Jade Plus
- BitAxe CSRF Vulnerability
Discussion
Tweets & Blogs
- Nunchuk adds support for taproot MuSig2
- Zero fee playground: a new toy by Super Testnet
- P2PK playground: Super Testnet's Latest Invention for Paying Raw Public Keys
bitcoin-dev
- Reiterating centralized coinjoin (Wasabi & Samourai) deanonymization attacks
- Double Exponential Hash Rate Growth and Difficulty Adjustment
- Trivial QC signatures with clean upgrade path
- Call for reconfiguration of nodes to relay transactions with fee-rates below 1 sat/vbyte
- [FULL DISCLOSURE]: Replacement Cycling Attacks on Attacks on Bitcoin Miners Block Templates
dlc-dev
Delving Bitcoin
- Transitory soft forks for consensus cleanup forks
- Timewarp attack 600 second grace period
- Analyzing Mining Pool Behavior to Address Bitcoin Core’s Double Coinbase Reservation Issue
- Contract-level Relative Timelocks (or, let’s talk about ancestry proofs and singletons)
- Updated stats on compact block reconstructions
CVEs and Research
Research
- N/A
InfoSec
- Co-founder of French crypto firm Ledger freed after kidnapping, Paris prosecutors say
- Vulnerability Report: Privacy Issue in WabiSabi Protocol
- Geolocation vulnerability found in Signal, Discord and others
BIPs
- BIP374: DLEQ merged
- BIP375: Sending Silent Payments in PSBTs
- BIP388 update: add support for musig in descriptor templates
- ChillDKG draft BIP updates
- unspendable() Descriptor Key Expression draft BIP
Noteworthy PRs
Bitcoin Core
- net, init: derive default onion port if a user specified a -port
- p2p: track and use all potential peers for orphan resolution
- rpc: add target to getmininginfo field and show next block info
- descriptors: Try pubkeys of both parities when retrieving the private keys for an xonly pubkey in a descriptor
- kernel: Move kernel-related cache constants to kernel cache