Bitcoin Optech newsletter #391 is here: - links to work on a constant-time parallelized UTXO database - summarizes a new high-level language for writing Bitcoin Script - describes an idea to mitigate dust attacks - covers the SHRINCS 324-byte stateful post-quantum signatures with static backups paper - highlights discussion to address remaining points on BIP54 - summarizes the Falcon post-quantum signature scheme proposal - links to research showing SLH-DSA verification can compete with ECC - Optech Newsletter #391 Podcast

Bitcoin Optech will host an audio recap discussion of this newsletter streaming live on X/Twitter Tuesday at 17:30 UTC.