<p>For a single user to unilaterally exit, they only have to broadcast their vtxo tree <em>branch</em>. This means your personal vtxo leaf tx and all the transactions that are between the leaf and the on-chain Ark tx. For a tree of <code>n</code> vtxo leaves, this generally means <code>log2(n)</code> transactions.</p>
<p><a href="https://i.sstatic.net/SmW9z.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/SmW9z.png" alt="enter image description here" /></a></p>

CC BY-SA 4.0
2023-09-29T15:47:06.387Z
For a better understanding of this diagram, see this answer: https://bitcoin.stackexchange.com/a/119835/96732
bordalix
CC BY-SA 4.0
2023-09-28T15:40:26.420Z
2023-09-28T15:40:26.420Z
Steven Roose
<p>In <a href="https://www.arkpill.me/" rel="nofollow noreferrer">Ark</a>, if Alice decides to unilaterally exit will this means the entire tree must be revealed? How is congestion control handled?</p>

<taproot><ark>
How many transactions go on-chain if a user unilaterally exits from an Ark?
bordalix
# How many transactions go on-chain if a user unilaterally exits from an Ark?

(Asked by: username_0 on 2023-09-26)

In [Ark](https://www.arkpill.me/), if Alice decides to unilaterally exit will this means the entire tree must be revealed? How is congestion control handled?

**Tags:** taproot, ark


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## 1 answers

### Answer by username_1 on 2023-09-28. Score: 3 | Accepted answer

For a single user to unilaterally exit, they only have to broadcast their vtxo tree *branch*. This means your personal vtxo leaf tx and all the transactions that are between the leaf and the on-chain Ark tx. For a tree of `n` vtxo leaves, this generally means `log2(n)` transactions.

[![enter image description here](https://i.sstatic.net/SmW9z.png)](https://i.sstatic.net/SmW9z.png)

> **Comments:**
> **username_0**: For a better understanding of this diagram, see this answer: https://bitcoin.stackexchange.com/a/119835/96732  

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