Bitbank to Coinbase: Brian Armstrong’s $48 billion job post

How Brian Armstrong’s vision for a “PayPal for Bitcoin” evolved into Coinbase, one of the most influential companies in crypto

share

This is a segment from the Supply Shock newsletter. To read full editions, subscribe.


In this week’s roundup, David Canellis looks at a 13-year-old job post that transformed crypto, a Kenyan startup combining crypto mining with hydroelectric power, and Gamestop’s bitcoin buying spree.

Opportunity knocks

The year is 2012. Skrillex’s “Bangarang” is playing somewhere in the background, and you’re debating whether to see The Hunger Games or 21 Jump Street at the cinema.

You decide to scroll Hacker News instead. A new post catches your eye — “Apply with me to YC [Y Combinator] in the next 3 days and change the world.”

Brian Armstrong, pre-Coinbase, wrote this 13 years ago. “I’m throwing a hail mary here – because desperate times call for desperate measures.”

Armstrong had a prototype, “PayPal for bitcoin,” an open-source Android wallet called Bitbank that let users send bitcoin via email addresses. Y Combinator showed interest, Armstrong said, but he’d deferred the meeting until he’d found a ride-or-die co-founder.

“The killer app will be in disrupting transaction fees that are a tax on every transaction in our economy,” Armstrong wrote. “This is going to be super fucking hard, but the payoff is that we have a non-zero chance of really changing the world in big way. This isn’t another photo-sharing app.”

He wasn’t wrong. While Armstrong didn’t find co-founder Fred Ehrsam until after he’d graduated from Y Combinator, Bitbank did eventually become Coinbase, which is today a $48-billion stock trading on the Nasdaq. 

Conviction clearly pays.

Remote work

Legendary Bitcoiners have famously gone to great lengths in pursuit of the network.

Kenya-based startup Gridless is no different: It’s been busy in northwest Zambia, hauling a shipping container full of 120 mining rigs “across bumpy narrow roads 14 hours from the nearest major city,” reported the BBC last week.

The goal was to hook those rigs — which are each making around $5 per day — directly to a hydroelectric power plant harnessing the might of the Zambezi river. 

Bitcoin mining now makes up about 30% of the plant’s revenue, and a revenue-sharing agreement with the company that built the plant means cheap power for the machines and cheaper electricity for locals. 

Increased revenue for the plant has also led to more reliable power for the people that live there — living proof that proof-of-work can turn stranded energy into real-world progress.

“Every day we were wasting over half of the energy we could generate, which also meant we [weren’t] earning from that to meet our operating expenses. We needed a major user of power in the area, and that’s where the game-changing partnership with Gridless came in,” plant operator Daniel Rea told the BBC.

Game-Start

GameStop gearing up to run the Strategy playbook is a turning point.

Ignore the mixed market reaction. The original meme stock will be the second large-scale firm to attempt an extreme bitcoin buying spree (mirroring Strategy), after Japanese holding company MetaPlanet.

And that includes issuing 0% convertible notes to the tune of $1.3 billion — cash it will use to buy bitcoin — the exact same move that Strategy has perfected over the past five years or so. 

All while GameStop will continue closing its physical stores en masse.

Loading Tweet..

GME initially jumped by about 10% after it announced its bitcoin plan, but then dropped 25% on details of the financing.

All noise. The stock might be a very different beast to Strategy and MetaPlanet, but the three will soon share one common denominator. 

Forget Denzel — Bitcoin is the real equalizer.


Get the news in your inbox. Explore Blockworks newsletters:

Tags

Decoding crypto and the markets. Daily, with Byron Gilliam.

Upcoming Events

Javits Center North | 445 11th Ave

Tues - Thurs, March 24 - 26, 2026

Blockworks’ Digital Asset Summit (DAS) will feature conversations between the builders, allocators, and legislators who will shape the trajectory of the digital asset ecosystem in the US and abroad.

recent research

Flying_Tulip.png

Research

Flying Tulip's perpetual put option provides real principal protection, but investors must pay a valuation premium today for products that have to be built over the next 24 months. This structure works best as a stablecoin substitute where the put allows continuous monitoring—accept opportunity cost in exchange for asymmetric upside if the team executes on its ambitious cross-collateral architecture.

article-image

As flows consolidate and volatility fades, finding edge now means knowing which games are still worth playing

article-image

Value distribution came to $1.9 billion distributed in Q3, though total revenues have yet to beat 2021 heights

article-image

MegaETH public sale auction ends tomorrow, and the free money machine has attracted people who like free money

article-image

With tBTC under the hood, Acre abstracts bridging and converts non-BTC rewards to bitcoin

article-image

Accountable is also eyeing mid-November for mainnet launch

article-image

“Adjusted for size, I think it may be the most successful ETP launch of all time,” Bitwise CIO Matt Hougan says