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![MattyTom01 Avatar](https://lunarcrush.com/gi/w:24/cr:twitter::1635566602744676353.png) Mathias at Arbitrum (💙,🧡) [@MattyTom01](/creator/twitter/MattyTom01) on x 1166 followers
Created: 2025-07-16 18:02:12 UTC

2/

Before “The Merge” was even close, Prysm was already laying the groundwork.

Between 2018–2020, they launched a series of testnet releases that helped shape how Ethereum validators operate today.

Each one was a building block. 

Let’s break it down 👇


X engagements

![Engagements Line Chart](https://lunarcrush.com/gi/w:600/p:tweet::1945544512727609549/c:line.svg)

**Related Topics**
[ethereum](/topic/ethereum)
[coins layer 1](/topic/coins-layer-1)

[Post Link](https://x.com/MattyTom01/status/1945544512727609549)