> For the complete documentation index, see [llms.txt](https://docs.botanixlabs.com/botanix/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.botanixlabs.com/botanix/get-to-know-botanix/roadmap-to-spiderchain/single-node-testnet.md).

# Single Node (Testnet)

{% hint style="info" %}
**This version is deprecated**

The version of our testnet with a single node, called V0, was live between November 2023 and July 2024. This version is no longer live and the provided documentation is merely intended for the specially interested reader. 
{% endhint %}

The very first version of the Botanix EVM is our MVP (minimum viable product) of which the goal is to showcase the possibilities of having an EVM built on top of Bitcoin and being able to bridge funds from L1 to L2. 

The Botanix EVM at this stage consists of:

* A **single Botanix block producer** that assumes the responsibility of mining and producing blocks
* A **decentralized application** (dApp) that serves as the front-end interface with mainly two functions:
  * Bridge: User interface that enables pegging in and pegging out of the Bitcoin Signet network to the Botanix Testnet
  * Faucet: User interface that enables getting some free Botanix testnet funds 
* **Side Car Server** which streamlines and simplifies the complex pegging procedure. 
* **BTC Signer** which is a solitary signer accessible via gRPC and has the following responsibilities
  * Administer a database of spendable Unspent Transaction Outputs (UTXOs) while dynamically updating this inventory upon the introduction of new peg ins and outs
  * Expose an endpoint facilitating the retrieval of its internal taproot key's public key
  * Shoulder the responsibility of executing all pegouts by orchestrating the construction of a bitcoin transaction, drawing from the available pool of UTXOs.

<figure><img src="/files/LtovjJ38Q4AlGTTJraPG" alt=""><figcaption></figcaption></figure>


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