Tailstorm: Directed Acyclic Graph (DAG) Combined With Traditional Blockchain
A proof-of-work system that can confirm your transactions in 3 seconds was, until recently, just a myth. To this day, Bitcoin’s average block time is 10 minutes. What if that could improve 200 times o...
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Scaling By Circuit
The second article in this series built Nexa’s validation engine out of six components, a tape, and a head, and watched it settle a payment from Alice to Bob with no software running at all. Because t...
Nexa Full-Node 2.2.0.0: The Final Checkpoint Before The Tailstorm
It is exciting to present Nexa Full-Node 2.2.0.0, an important milestone and the final checkpoint before the upcoming hard-fork with the Tailstorm integration and launch on the mainnet. We urge everyo...
Nexa Monthly Newsletter August 2026: Redesign of the Mining Puzzle
The team keeps delivering, and August brought us news of major upcoming network changes and new algorithms. NexaPoW 2.0 was introduced to the community, and Bitcoin Unlimited’s President himself expla...
Nexa: The Art of Building a Blockchain
This time, we want to revisit the ideology, goals, and legacy of the Nexa blockchain and the Bitcoin Unlimited team behind it. The journey began more than a decade ago, when a small group of passionat...
The Cellular Automaton: Inside Nexa's Next Proof-of-Work
Nexa Proof-of-Work algorithm changes are already planned and being worked towards. A Cellular Automaton was already mentioned as a coming upgrade to the new NexaPoW 2.0 version. The President of Bitco...
Monthly Development Updates: July 2026
The team is accelerating, and the development news for July 2026 shows it. This month saw more than 100 merges from thirteen repositories across Nexa GitLab. The most important delivery is Tailstorm p...
Nexa August Highlights: NexaPoW 2.0 Introduced
This August is exciting and brings us a lot of positive news. The president of Bitcoin Unlimited, Andrew Clifford, has explained the new 2.0 version of the NexaPoW algorithm, a fundamental improvement...
A Node Made of Wires
In the first article of this series we explained why Nexa builds hardware. Proof-of-work spent seventeen years accelerating a computation that does nothing for the network’s capacity, and Nexa intends...
Rethinking Proof of Work: Understanding Nexa's Architecture with Andrew Clifford
Bitcoin Unlimited President Andrew Clifford joined Danielle Marie of EvolveH3r for a webinar on proof-of-work, where it came from, and what Nexa has done to advance it. After Danielle’s introduction t...