Share this article

Square Crypto Bankrolls Star Lightning Developer Known as 'ZmnSCPxj'

Keeping in the cypherpunk spirit, Square Crypto has issued a grant to pseudonymous developer ZmnSCPxj for Lightning and bitcoin research.

Updated Sep 13, 2021, 11:48 a.m. Published Dec 11, 2019, 7:15 p.m.
Jack Dorsey image via CoinDesk archives
Jack Dorsey image via CoinDesk archives

Square Crypto, the payment startup’s bitcoin development group, has funded a pseudonymous researcher to let him work on the space full-time.

STORY CONTINUES BELOW
Don't miss another story.Subscribe to the Crypto Daybook Americas Newsletter today. See all newsletters

Announced Wednesday via Square Crypto’s Twitter account, freelance Lightning and bitcoin contributor ZmnSCPxj received a grant from the company to further development of the bitcoin network. The grant’s total was not disclosed.

The pseudonymous developer is known for his work throughout the Lightning developer community, working on both the Lightning Labs and c-Lightning implementations over the past two years, another tweet said.

With the grant, Square Crypto said the developer is able to “leave behind his day job of 14 years” to work full time on Lightning and bitcoin.

Lightning Labs infrastructure lead Alex Bosworth said in an email the funding looked like a one-time grant and is not part of the Square Crypto developer team’s general mandate.

“I think the focus is broadly on bitcoin and they are still figuring out a good intersection of helping bitcoin and pursuing their development interests. They have a great team and a lot of freedom to pursue different directions,” Bosworth said.

Despite claims that ZmnSCPxj is an anonymous individual, Lightning developers likely know his identity. The individual attended October’s Lightning Conference in Berlin, giving a presentation during the conference's second day. The developer also appears to have spoken to others, such as c-Lightning’s Rusty Russel, under Chatham House rules.

ZmnSCPxj has seemingly accepted cost-of-living donations on website through his bitcoin wallet address since 2018, when his domain was copyrighted. His work on bitcoin sidechains, off-chain transactions such as Lightning and bitcoin projects such as CoinJoins can be found on the domain.

ZmnSCPxj and Square Crypto did not return questions for comment by press time.

More For You

Protocol Research: GoPlus Security

GP Basic Image

What to know:

  • As of October 2025, GoPlus has generated $4.7M in total revenue across its product lines. The GoPlus App is the primary revenue driver, contributing $2.5M (approx. 53%), followed by the SafeToken Protocol at $1.7M.
  • GoPlus Intelligence's Token Security API averaged 717 million monthly calls year-to-date in 2025 , with a peak of nearly 1 billion calls in February 2025. Total blockchain-level requests, including transaction simulations, averaged an additional 350 million per month.
  • Since its January 2025 launch , the $GPS token has registered over $5B in total spot volume and $10B in derivatives volume in 2025. Monthly spot volume peaked in March 2025 at over $1.1B , while derivatives volume peaked the same month at over $4B.

More For You

Barclays Sees ‘Down-Year’ for Crypto in 2026 Without Big Catalysts

(Jose Marroquin/Unsplash)

Spot trading volumes are cooling, and investor enthusiasm is fading amid a lack of structural growth drivers, analysts wrote in a new report.

What to know:

  • Barclays forecasts lower crypto trading volumes in 2026, with no clear catalysts to revive market activity.
  • Spot market slowdowns pose revenue challenges for retail-focused platforms like Coinbase and Robinhood, the bank said.
  • Regulatory clarity, including pending market structure legislation, could shape long-term market growth despite near-term headwinds.