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![Zevweb3 Avatar](https://lunarcrush.com/gi/w:24/cr:twitter::910840743115186178.png) Zev [@Zevweb3](/creator/twitter/Zevweb3) on x 19.9K followers
Created: 2025-07-16 17:37:07 UTC

What is Arbitrum?

Arbitrum is a Layer X scaling solution built on Optimistic Rollups, designed to solve Ethereum’s limitations in speed and scalability.

Developed by Offchain Labs, founded in 2018 by Ed Felten, Steven Goldfeder & Harry Kalodner, Arbitrum was first introduced at Princeton University.

Scaling Ethereum, one rollup at a time.

![](https://pbs.twimg.com/media/Gv_wm5EW4AAO5Yu.jpg)

XXXXX engagements

![Engagements Line Chart](https://lunarcrush.com/gi/w:600/p:tweet::1945538199100821585/c:line.svg)

**Related Topics**
[scalability](/topic/scalability)
[built on](/topic/built-on)
[coins layer 2](/topic/coins-layer-2)
[ethereum](/topic/ethereum)
[coins layer 1](/topic/coins-layer-1)

[Post Link](https://x.com/Zevweb3/status/1945538199100821585)