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![alexeiZamyatin Avatar](https://lunarcrush.com/gi/w:24/cr:twitter::3302277514.png) alexei [@alexeiZamyatin](/creator/twitter/alexeiZamyatin) on x 29K followers
Created: 2025-07-24 17:39:55 UTC

1) BOB is the first rollup to use ZK fraud proofs. 

One ZK proof TX instead of many challenge game TX. 

Result: perfect balance of low cost + maximum security  

It’s just so, so much better than other optimistic rollups: Fraud proofs on Base or Arbitrum can cost millions.

ZK fraud proofs for BOB cost less than XX USD.

![](https://pbs.twimg.com/media/Gwo-CW6WEAA_Hyz.jpg)

XXX engagements

![Engagements Line Chart](https://lunarcrush.com/gi/w:600/p:tweet::1948438004080509085/c:line.svg)

**Related Topics**
[united states dollar](/topic/united-states-dollar)
[zk](/topic/zk)
[rollup](/topic/rollup)
[bob](/topic/bob)

[Post Link](https://x.com/alexeiZamyatin/status/1948438004080509085)