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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: 2025-07-22 21:50:10 UTC

The '1-of-N' security of BOB's BitVM bridge is powerful. But what does it really mean?

Imagine an operator wants to steal your BTC from the bridge. They make a fraudulent withdrawal claim. This starts a 7-day timer.

During that week, anyone (challengers) who sees the fraud can post a tiny transaction on Bitcoin that says, "I challenge this".

This single challenge forces the fraudulent operator into a corner. They must now publicly prove on-chain, how they arrived at their fraudulent result.

Because it's based on a lie, they will inevitably fail. The moment they fail, the protocol automatically punishes them, slashing their collateral, removing them as an operator and the fraudulent withdrawal is cancelled.


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**Related Topics**
[withdrawal](/topic/withdrawal)
[bitcoin](/topic/bitcoin)
[coins layer 1](/topic/coins-layer-1)
[coins bitcoin ecosystem](/topic/coins-bitcoin-ecosystem)
[coins pow](/topic/coins-pow)

[Post Link](https://x.com/alexeiZamyatin/status/1947776208923726141)