Bitcoin Optech newsletter #390 is here:
- summarizes a more efficient approach to garbled circuits
- links to an LN-Symmetry update
- summarizes popular Q&A from Stack Exchange
- Optech Newsletter #390 Podcast
https://bitcoinops.org/en/newsletters/2026/01/30/
Robin Linus posted to Delving Bitcoin about a new paper by Liam Eagen and Ying Tong Lai describing a technique that will enable 1000 times more efficient garbled locks...
https://bitcoinops.org/en/newsletters/2026/01/30/#argo-a-garbled-circuits-scheme-with-more-efficient-off-chain-computation
Gregory Sanders posted an update to Delving Bitcoin about his previous work on LN-Symmetry...
https://bitcoinops.org/en/newsletters/2026/01/30/#ln-symmetry-update
Selected Q&A from Bitcoin Stack Exchange
- What is stored in dbcache and with what priority?
- Can one do a coinjoin in Shielded CSV?
- In Bitcoin Core, how to use Tor for broadcasting new transactions only?
- Brassard-Høyer-Tapp (BHT) algorithm and Bitcoin (BIP360)
- Why does BitHash alternate sha256 and ripmed160?
https://bitcoinops.org/en/newsletters/2026/01/30/#selected-qa-from-bitcoin-stack-exchange
Bitcoin Optech will host an audio recap discussion of this newsletter streaming live on X/Twitter Tuesday at 17:30 UTC.