Please welcome our first Texan, @benthecarman, to Spiral. After one year probably doing JPEG work at Taproot Wizards, Ben will tackle LDK Server and a new SDK that simplifies how we onboard self-custodial bitcoin users, two things that his Mutiny wallet work lend themselves to.

Opinions vary on how best to get strangers into bitcoin.

Spiral wizard Yuval Kogman gets to put ”wizard” as his occupation on tax forms, legal documents, and lease applications for a reason. “The Scroll #3: A Brief History of Wallet Clustering“

The Scroll #3: A Brief History of Wallet Clustering

Our previous post in this series introduced the idea behind wallet or address clustering, the trivial case of address reuse, and the merging of clu...

April’s Nerd of the Month is @the_charlatan_. This one’s so nerdy that it took four of us to make it understandable even to other nerds.

Nerd of the Month: Bitcoinkernel Library

April’s Nerd of the Month is @the_charlatan_, a Spiral grantee whose work on Bitcoin Core’s build system, validation engine, and long-term arch...

Just because our quarterly progress report is now multiple newsletters doesn’t mean we still can’t have a quarterly progress report. It just means that it’s much shorter and mostly bullet points because none of us have attention spans anymore:

2025 Q1 Spiral Progress Report

What you need to know about how little we know.

From the same bitcoin co-working and events space that brought you Presidio Bitcoin Jam comes a no-holds-barred adrenaline-fueled thrill ride called 21 in 21, where our own Haley Berkoe asks people like this dude you’ve never heard of 21 questions about bitcoin in 21 minutes:

This post was originally released a couple of days ago on

Lightning Dev Kit Documentation

A complete Lightning implementation packaged as an SDK

LDK is a flexible lightning implementation with supporting batteries (or modules).

by some devs who forgot that Spiral now has a newsletter that covers, among other things, LDK-related stuff like VSS. As recompense, they have all been assigned to eat a bowl of spiders.

LDK: Announcing Versioned Storage Service (VSS)

A solution for live online sync and lightning state backup for non-custodial wallets.

The Nostr community could be the only community that understands our latest newsletter. Twitter seems to be struggling:

The Scroll #2: Wallet Clustering Basics

In this new recurring newsletter, The Scroll, we’ll be highlighting the highly technical concepts happening within bitcoin.

This is quickly becoming my all-time favorite Spiral writing project. And we have had SO MANY of those over the years:

Plushie Confidential #2: Rooting for the Little Guy

This post focuses on how Itty Bitty came to be and what your marketing team can learn from our wins, losses, and outright mistakes.

If your bitcoin investment strategy can’t fit in a fortune cookie, it’s too complicated.