# Super Hub

Learn, integrate, and build on the first chain that pays you to use it, only with Superposition.

<table data-card-size="large" data-view="cards"><thead><tr><th></th><th></th><th></th><th data-hidden data-card-cover data-type="files"></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td>Learn about Superposition</td><td></td><td></td><td><a href="/files/x8vrEtlKZ0rP8yfZp4Ej">/files/x8vrEtlKZ0rP8yfZp4Ej</a></td><td><a href="/pages/Ft7uEXbRPoXjadO8jo6r">/pages/Ft7uEXbRPoXjadO8jo6r</a></td></tr><tr><td>Join the Community</td><td></td><td></td><td><a href="/files/mp66KDgwaAwPaI83pbqR">/files/mp66KDgwaAwPaI83pbqR</a></td><td><a href="/pages/0uPHEnRKWDOjOZZawBcI">/pages/0uPHEnRKWDOjOZZawBcI</a></td></tr></tbody></table>

<table data-view="cards"><thead><tr><th></th><th></th><th></th><th data-hidden data-card-cover data-type="files"></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td></td><td>The Super Layer</td><td></td><td><a href="/files/gKybEyumM45VeSFc99ai">/files/gKybEyumM45VeSFc99ai</a></td><td><a href="/pages/mLJZbSdTSxJWQLkbnJTw">/pages/mLJZbSdTSxJWQLkbnJTw</a></td></tr><tr><td></td><td>Developers</td><td></td><td><a href="/files/wbFfQymkTmDyGAuLyfTo">/files/wbFfQymkTmDyGAuLyfTo</a></td><td><a href="/pages/CtgpqVOPX6iYJb8PJg2P">/pages/CtgpqVOPX6iYJb8PJg2P</a></td></tr><tr><td></td><td>Arbitrum Layer 3</td><td></td><td><a href="/files/gKybEyumM45VeSFc99ai">/files/gKybEyumM45VeSFc99ai</a></td><td><a href="/pages/JB90HkDcb3mBkkf9lCeh">/pages/JB90HkDcb3mBkkf9lCeh</a></td></tr></tbody></table>


# Introducing Superposition

Superposition is a Layer-3 Chain built on top of the Arbitrum stack, engineered to facilitate native liquidity and utility mechanisms for decentralised applications.

### What is Superposition:

Superposition is The Blockchain For Incentive Driven Applications, built on top of the Arbitrum stack and engineered to support application growth from first principles.

It is a DeFi native Layer-3 that focuses on novel incentives and order-flow for growth and value capture. Superposition features a native unified liquidity layer, built using Stylus, that combines an AMM with an orderbook, providing shared and permissionless liquidity for all apps onchain.&#x20;

When assets are bridged to Superposition, they become Super Assets - yield-bearing tokens that pay rewards for both holding ***AND*** using them.

Superposition also natively supports Utility Mining, allowing developers and protocols to progressively decentralise, align incentives with their users and earn revenue.

***

### How it's better:

Superposition positions itself as the most application-centric layer with novel advancements:

* **Super Assets:** Wrapped tokens that pay yield for holding & using, with built-in payment for order flow
* **Longtail:** Shared & composable liquidity layer combining AMM + Orderbook functionality
* **Cross Chain Orderbook:** Built in collaboration with Espresso Systems for unified liquidity across multiple chains
* **Developer Earnings:** Applications capture revenue (MEV) directly through Super Assets
* **Utility Mining:** Progressive decentralisation through activity-based token distribution

Built using Arbitrum Stylus, Superposition enables high-performance applications in Rust, C++, and C that remain composable with Solidity contracts.


# Understanding Superposition

***

### Why another layer?

Why do we need another layer? Superposition approaches building a layer in mechanism first approach, that goes beyond the typical value propositions of *just* speed and cost-efficiency. It's a layer where liquidity and utility are not just coexisting but are interwoven into the chain, ensuring that every transaction is more than just a transfer of value—it's an integral part of a larger, self-sustaining economy, that is aligned. There are a few approaches currently being taken by others who are building native-yield layers. Superposition goes beyond just native yield being offered on the chain, Superposition's introduces novel mechanisms which include; native token distribution models, yield through utility and shared liquidity.

### Solving Incentive Misalignment

Applications now drive onchain activity, yet chains limit applications into sandboxes while revenue and users are driven by applications. Superposition flips this model - creating a chain where applications are first-class citizens that directly benefit from the value they create.

### Growth for Everyone

Traditionally, liquidity has been zero sum, as certain winners on a chain emerge, they siphon liquidity from other applications. On Superposition we promote shared liquidity that is accessible by every application.  Through a shared order book called the Longtail, when certain applications experience expansive growth, it benefits every application on the chain.&#x20;

### Decentralisation through Utility

Many chains suffer from finding ways to progressively decentralise and distribute ownership. Superposition offers native token distribution through Super Assets and Utility Mining. As users use an application, the Super Layer can distribute tokens to users of an application natively. This allows a seamless user experience and alignment between user ownership and value given.

### Applications Now Drive Chains&#x20;

Instead of chains constraining applications, Superposition enables:

* Applications to capture their own MEV through Super Assets
* Shared liquidity that grows with ecosystem usage
* Progressive decentralisation through Utility Mining
* Direct revenue capture for developers

### Low & Negative Fees

Superposition and its primitives are built on top of the EVM+ Arbitrum Nitro Stack implementing Arbitrum Stylus, resulting in Computation being over 10x more efficient and memory over 100x.&#x20;

This paired up with Superposition's native active and passive on-chain rewards results in not only a fast experience when using different dApps, but one that actually pays you to use and explore them.

### Powered by Sustainable Yield&#x20;

Multiple yield sources power the Super Layer:

* Money markets and RWAs for base yield
* Longtail's CLOB Vault for trading fees
* Cross-chain arbitrage opportunities
* Application-specific revenue streams

<br>


# The Laws of Superposition

### Super Assets: The Pulse of Superposition

Super Assets form the backbone of Superposition's innovative approach. Moving beyond the scope of traditional assets, Super Assets are engineered to actively generate yield, not only through trading but also when they are simply held. This dual functionality imbues them with a dynamic quality, ensuring a constant flux of value and engagement within the platform.

### Longtail: A Unified Liquidity Model

Longtail, Superposition's native order book, revolutionises the concept of liquidity. By aggregating liquidity across various protocols, it optimises capital efficiency and democratises access, leveling the playing field for emerging protocols and established entities alike.

### Emergent Properties: Gas Efficiency and Negative Fees

Superposition stands apart with its exceptionally gas-efficient ecosystem, significantly reducing transaction costs. An extraordinary emergent property of this system is the potential for negative fees—a paradigm shift that incentivizes platform activity by rewarding transactions, fostering a uniquely dynamic user experience.

### Empowering Developers: Tools for Innovation

Superposition serves as a catalyst for DeFi innovation, equipping developers with a comprehensive suite of tools and features tailored for advanced financial application development:

* **EVM+ Compatibility:** Facilitates effortless integration of EVM as well as MoveVM applications, enhancing the Ethereum ecosystem's maturity with Layer-3 capabilities.
* **Unparalleled Gas Efficiency:** Redefines transaction cost-efficiency, enabling more intricate and interactive dApp development.
* **Developer-Centric Resources:** A commitment to a developer-first ethos, with extensive documentation and support, fostering a collaborative development environment.
* **Scalability and Performance:** Leverages cutting-edge Layer-3 technology to provide unmatched scalability and performance, catering to the demanding requirements of contemporary finance applications.
* **Playground for Innovation:** Encourages novel approaches to liquidity models and yield strategies, offering a fertile ground for creative DeFi solutions.


# Roadmaps

{% embed url="<https://fluidity.notion.site/Superposition-Product-Roadmap-71ffc9d136364ef9bdb7731d563b1757?pvs=4>" %}

#### When evaluating the roadmap and building Superposition, the team looks and and follows three pillars alongside the Laws of Superposition:

<table data-view="cards"><thead><tr><th></th><th></th><th></th></tr></thead><tbody><tr><td><p> <strong>User Engagement and Incentivisation</strong></p><p>Superposition rewards users and developers for participation, enhancing engagement through yield generation, gamified interactions, and community-driven projects.</p></td><td></td><td></td></tr><tr><td><p><strong>Innovative DeFi SolutionsPlatform depth</strong></p><p>Superposition offers advanced tooling, account abstraction, MultiVM codebases, and money markets, promoting shared liquidity, efficient decentralised trading, and rewarding DeFi experiences.</p></td><td></td><td></td></tr><tr><td><p> <strong>Playful Branding and Utility based Ecosystem Integrations</strong></p><p>Superposition combines cat-themed branding with practical applications, supporting real-world initiatives and providing a unique, approachable user experience.</p></td><td></td><td></td></tr></tbody></table>


# ℹ️ Mainnet Network Details

### Bridge

{% embed url="<https://bridge.superposition.so>" %}
Stargate Superposition Bridge
{% endembed %}

### Block Explorer

{% embed url="<https://explorer.superposition.so/>" %}
Mainnet Explorer
{% endembed %}

### Network Details

| Description      | Details                                                                                                                                           |
| ---------------- | ------------------------------------------------------------------------------------------------------------------------------------------------- |
| Network Name     | Superposition                                                                                                                                     |
| Public RPC URL   | <https://rpc.superposition.so>                                                                                                                    |
| Public Websocket | wss\://rpc.superposition.so                                                                                                                       |
| Chain ID         | 55244                                                                                                                                             |
| Currency Symbol  | ETH                                                                                                                                               |
| Block Explorer   | <https://explorer.superposition.so>                                                                                                               |
| Config           | <https://api.conduit.xyz/file/getArbitrumCoreJSON?network=4dd208a1-b9c5-4617-997f-2e2aa1c397a4&organization=728beb15-3cf8-4be3-be8e-ed23a3cbced5> |


# 🖥️ Using Superposition Mainnet

## Add the Superposition Mainnet to your Wallet

To add the Superposition Mainnet to your Wallet, head to the [linked tutorial from Metamask](https://support.metamask.io/networks-and-sidechains/managing-networks/how-to-add-a-custom-network-rpc/#adding-a-network-manually) and use the following network details:

| Description     | Content                             |
| --------------- | ----------------------------------- |
| Network Name    | Superposition                       |
| RPC URL         | <https://rpc.superposition.so>      |
| Chain ID        | 55244                               |
| Currency Symbol | ETH                                 |
| Block Explorer  | <https://explorer.superposition.so> |

## Bridge to Superposition

1. Head to <https://bridge.superposition.so/>
2. Select the tokens and amount you want to bridge from Arbitrum to Superposition under the "Deposit" field.
3. Click on "Deposit", approve the token and initiate the deposit
4. You're now good to go! Your tokens should arrive in approximately 10 minutes on Superposition
5. Click on "Withdraw" to bridge from the Superposition back to Arbitrum

## Using the Longtail AMM

Longtail is the first AMM built with Arbitrum Stylus and the first native Dapp on the Superposition L3. Every pair on Longtail is paired against a Super Asset, ensuring that every transaction is incentivised and paying you yield for making trades!

<figure><img src="/files/mgl0xDyt0OWkOcUL4HzL" alt=""><figcaption></figcaption></figure>

1. Head to <https://long.so/>
2. Select any of the supported assets on Superposition Mainnet and start swapping!
3. Click on the "PRO" button in the Swap section to see stats and history on your selected liquidity pool and assets
4. Go to the "Stake" section to create your own pool and provide liquidity or add liquidity to an existing pool

{% hint style="info" %}
As Longtail is a V3 AMM, you can choose between providing liquidity in the full range, in an auto range or a custom range. Providing liquidity in the full range is the classic V2 setup, but unused liquidity outside of the current price will not earn fees. Auto will set an automatic range around the current price, while custom lets you set the liquidity range for yourself in tick spaces. Make sure to actively manage your liquidity if you set up a custom range!
{% endhint %}

**The more you swap and the more liquidity you provide, the more you earn.**

## Mint your .meow domain, Help cats in need, Predict important events...

Other native Dapps on Superposition include:

{% embed url="<https://meow.domains>" %}
Mint a .meow domain!
{% endembed %}

{% embed url="<https://purr.stream>" %}
SocialFi for good: Help stray cats in need while watching them eat!
{% endembed %}

{% embed url="<https://9lives.so>" %}
The most capital efficient prediction market on Arbitrum One and Superposition.
{% endembed %}

## Explore the Ecosystem

Head to our [Mainnet Hub](https://superposition.so/) to explore the Superposition Ecosystem and use different Dapps.&#x20;

Protocols building on Superposition include [Camelot](https://app.camelot.exchange/), [Hyperlane](https://hyperlane.xyz/), [nonon](https://www.nonon.house/), [Dinero](https://dinero.xyz/), [Umami Finance](https://umami.finance/), [Vendor Finance](https://vendor.finance/), [Demether](https://www.demether.io/), and more!


# 🌉 Bridging to Superposition Mainnet

1. Head to <https://bridge.superposition.so/>
2. Select the tokens and amount you want to bridge from Arbitrum to Superposition under the "Deposit" field.
3. Click on "Deposit", approve the token and initiate the deposit
4. You're now good to go! Your tokens should arrive in approximately 10 minutes on Superposition
5. Click on "Withdraw" to bridge from the Superposition back to Arbitrum

{% hint style="info" %}
Current Supported Bridges are [Stargate](https://bridge.superposition.so), [Superbridge](https://superbridge.app/), [Jumper](https://jumper.exchange/), [Decent](https://decent.xyz), [Relay](https://relay.link/bridge/superposition?fromChainId=1\&fromCurrency=0x0000000000000000000000000000000000000000\&toCurrency=0x0000000000000000000000000000000000000000), and the official [Arbitrum Bridge](https://bridge.arbitrum.io/?destinationChain=superposition\&sourceChain=arbitrum-one).
{% endhint %}


# Super Layer

At the core of Superposition's architecture lies the Super Layer, a system that is more than the sum of it's parts. The Super Layer is the emergence of Super Assets, the Longtail Orderbook, Utility Mining and the core innovations of Superposition in a system. Here's an exploration into what the parts of the Super Layer do:

### Super Assets:

Super Assets are like regular tokens, such as USDC or ETH, but they allow us to pay yield when you use the chain. They go beyond regular yield bearing tokens that pay yield when you hold on to them, Super Assets also pay you yield when you use them.

#### Functionality

* **Active Yield:** Super Assets pay you yield for your action on-chain, for example sending a payment , purchasing an NFT or making a trade.&#x20;

{% hint style="info" %}
Any on-chain transaction qualifies for active yield.&#x20;
{% endhint %}

* **Passive Yield:** Super Assets can also pay you yield when you hold onto them, allowing for native on-chain yield.

{% content-ref url="/pages/zGMeZJ8B0QxzUA8mTZRZ" %}
[Super Assets](/superposition-mainnet/super-layer/super-assets)
{% endcontent-ref %}

### Longtail - The Superbook:

Longtail is the liquidity layer on Superposition that combines an AMM with a Cross Chain Order Book, allowing users to use both types of tools. Applications share liquidity and assets between themselves through longtail, which is planned to support various types of asset and facilitates spot orders, perpetuals, and other derivatives.

#### Advantages

* **Composable:** Built on Stylus for maximum efficiency
* **Built on Stylus:** Arbitrum Stylus provides the ability to run Rust applications on EVM
* **Advanced Tools:** Professional trading interface with full orderbook functionality
* **Spot/Perps:** Support for spot trading and perpetual contracts
* **DEX Liquidity API:** Easy integration for developers

{% content-ref url="/pages/CW3TnEroqt1k1Dvqjbn3" %}
[Universal Shared Liquidity](/superposition-mainnet/super-layer/universal-shared-liquidity)
{% endcontent-ref %}

### Cross Chain Orderbook (with Espresso)&#x20;

The next step for CLOBs - unifying trading liquidity and improving capital efficiency across chains. Built in collaboration with Espresso Systems, this provides:

* Instantaneous cross-chain liquidity
* Better intent-based bridging and solving
* Reduced fees for users and developers
* A highly liquid Cross Chain Intent Layer

### Super Vault

Deposit from any supported chain and immediately earn yield from various strategies and money markets. The Super Vault transforms idle deposits into a dual-yield engine, auto-farming blue-chip DeFi money markets while simultaneously market-making our cross-chain orderbook.

### Utility Mining:

Utility mining is a novel distribution strategy, that allows the Superposition chan and dApp developers on the Superposition chain to distirbute yield and tokens to users of the chain and the dApps. Utility mining allows for aligned incentives.

{% content-ref url="/pages/Kd0l8Iy5fCMp7Zn3nwFf" %}
[Utility Mining](/superposition-mainnet/super-layer/utility-mining)
{% endcontent-ref %}


# Super Assets

### Turn your tokens into Super Assets

As soon you bridge over, Super Assets start paying you yield. **Opt in mechanism** allowing for assets be yield distributing on the Super Position

### Pays Yield for Holding and Using

Whether it is a swap, a trade, an NFT purchase or just sitting in your wallet all assets on superposition are yield bearing.

### Intent based yield distribution

Developers can decide how the yield gets distributed with no extra modifications needed.

### Negative-fees emergence

When enough users use Super Assets, the protocol can provide negative fees and the blockchain will pay you to use it.


# Universal Shared Liquidity

AMM to CLOB Evolution

Superposition DEX is an architecture revolution. Built as a Decentralised Limit Order Book (DLOB) on Layer-3 using Stylus, built with Arbitrum Orbit for unparalleled throughput whilst leveraging the flexibility of the EVM as well as extensible Account Abstraction - driven UX optimises the developer experience for a frictionless Web2 process on Web3.

The DLOB introduces the concept of Universal Shared Liquidity, where liquidity exists in a state of '**superposition'**.&#x20;

#### Protocols can tap into this shared pool, eliminating liquidity fragmentation.

With Superposition handling the foundational offerings, protocols can focus on innovating, and offering unparalleled products to users.

### Shared Utility in Stages

The first phase for Superposition will be realised through a fee-less order-flow focused automated market maker (AMM) based on the v3 model called **Longtail**. This AMM will later natively evolve into an on-chain CLOB. The liquidity will get migrated into a shared liquidity orderbook, allowing users and developers alike to solve the "cold start" liquidity problem, and make use of universal shared liquidity that any protocol can tap into to build their own DEXs and deritatives products on top of.

**Longtail has two stages:**

{% content-ref url="/pages/Y5EOWnXqxIVFueKCdk4B" %}
[Longtail AMM Specs](/superposition-mainnet/super-layer/universal-shared-liquidity/longtail-amm-specs)
{% endcontent-ref %}

{% content-ref url="/pages/fdhvPZbFTDnJ7KuNT0PP" %}
[Longtail Orderbook Specs](/superposition-mainnet/super-layer/universal-shared-liquidity/longtail-orderbook-specs)
{% endcontent-ref %}


# Longtail AMM Specs

The first AMM that pays you to use it.

{% hint style="info" %}
If you want to build or use the Longtail AMM, [learn more about it here  🐈](/native-dapps/longtail-amm)
{% endhint %}

The Longtail AMM is a V3 DEX that follows the concentrated liquidity curve introduced by Uniswap:

$$
\left(x\_r+\frac{L}{\sqrt{p\_b}}\right)(y\_r+L\sqrt{p\_a})=L^2
$$

where x\_r and y\_r are the real reserves of two assets X and Y of an LPs position, and L is the amount of liquidity provided in the price range \[p\_a, p\_b]. Concentrated liquidity positions will be translated into bids and asks on the order-book according to the liquidity curve.

This model results in a greater capital and trading efficiency due to tighter ranges around the spot price with outside virtual reserves instead of a price range of (0, ∞), where most of the liquidity will never be touched. As a result of this, positions on very small ranges already act similarly to limit orders. Because of this, concentrated liquidity positions are a natural first step to building on-chain order books from AMMs.

### Native Utility Mining

Every pool on the Longtail AMM will be paired with a Super Asset, allowing for a native Utility Mining integration from the start. Having native Utility Mining allows the protocol to turn off LP and platform fees while still being able to hedge against LP losses and even provide better returns for LPs. Traders and LPs alike will receive higher yields for trading and making markets on Longtail.

<figure><img src="/files/n3epj8Bu6stXc0CYJDEq" alt=""><figcaption><p>Comparison of PnL for an LP position between Longtail and Camelot V3</p></figcaption></figure>

#### Lowest Fees on Arbitrum due to Stylus

Longtail is built with Arbitrum Stylus, which allows for Rust powered smart contracts that are 10x less costly than Solidity. Rust is a secure systems programming language leveraging the LLVM toolchain for a high level of optimisation. Utilising Stylus, Longtail is roughly 4 times cheaper than Uniswap V3, making it the cheapest AMM in the Arbitrum Ecosystem, while also being the most rewarding thanks to Utility Mining.

<figure><img src="/files/DjibtklxNTO3TptIHeSR" alt=""><figcaption><p>The cost of making a $1000 swap on different AMMs, assuming $1M in annually generated yield and a 0.05% fee on all DEXs, including transaction fees at 1 ETH = $3400</p></figcaption></figure>

***

### More on Longtail

{% content-ref url="/pages/tBtxBZuJbHpBkAnaJqlZ" %}
[Longtail AMM](/native-dapps/longtail-amm)
{% endcontent-ref %}

{% content-ref url="/pages/Woh58OZzhbGaqR90jWyj" %}
[Broken mention](broken://pages/Woh58OZzhbGaqR90jWyj)
{% endcontent-ref %}


# Longtail Orderbook Specs

A Universal Shared Liquidity hub

In the second stage, the AMM will have its positions bridged to the Decentralised Limit Order Book on the Layer-3 as bids and asks. This will be facilitated with a specific on-ramp reducing the friction for end users. This bridge will be supported with options. This will ensure sufficient liquidity for the order book on day one to bootstrap the protocol.&#x20;

The decentralised limit order book will be launched on the Superposition Layer-3, and the AMM liquidity as well as collected interest from Super Assets will be migrated to the chain. The architecture will allow for the permissionless creation of AMMs and other types of financial products built on the order book liquidity, leveraging the superior performance and execution speed of the orbit chain.

### Account Abstraction in the Orderbook

The application will benefit from dedicated throughput with application-specific contracts. Account Abstraction (AA) will be leveraged to facilitate non-interactive transacting from the user’s perspective. Stylus will benefit the application with a higher performance and lower cost. A user-centric on-ramp leveraging AA will reduce the friction of using the DEX, taking the signing process out of the interaction UX with aggressive session key use. Entrypoint AA contracts are utilised with a Session Key signing key embedded in the browser. AA accounts facilitate margin calls, leveraging a calldata-heavy pattern seen with flash loans transparent to the end user. When margin is called on an account, live actors leveraging the bundler can call the code to transfer ownership of the assets to the lenders, for a fee. The UX for the wallets enables custody-free spending on margin

<figure><img src="/files/aOeZGxUqu8EM5xD83Z0J" alt="" width="375"><figcaption></figcaption></figure>

Fees are denominated in whatever assets the user has, based on the USD conversion rate at the time, with a preference for what the paymaster is willing to accept, and what’s liquid. To do so, an on-chain oracle is used to source data from alternative chains, weighted against data from the app-chain itself. This information is timed and also used to discover margin calls amongst other bits of information.


# Utility Mining

{% hint style="info" %}
Utility mining is a mechanism that allows for the distribution of tokens based on user activity and active participation.
{% endhint %}

### What Is Utility Mining? <a href="#ispasted" id="ispasted"></a>

Utility mining is a mechanism or process in which participants engage in protocol-specified on-chain activity and are rewarded with tokens for doing so. Protocols can utilize utility mining to distribute their native or governance tokens to end-users and attract new users to their protocols, helping bootstrap themselves as well as mitigating the risks of mercenary capital. This process incentivizes users to interact with the underlying protocol to receive additional yields. One of the risks of such a system is the potential for Sybil attacks, as yield is distributed on the basis of activity. One solution to this is leveraging the Transfer Rewards Function (TRF), allowing utility mining to sustainably distribute tokens in a probabilistic mechanism (the fact that rewards are distributed in tiers) each time any user performs an on-chain transaction. TRF is a custom mathematical function that distributes rewards through the use of assets. It takes into account the size of the rewards and the transaction count.

These rewards are distributed in tandem with other rewards, granting each network participant equal opportunities to generate large amounts of yield, whether they are sending or receiving these assets. For example, AMM A decides to distribute a portion of its tokens ($AMM) through utility mining. This may incentivize rational users of, for example, AMM B to use AMM A for a period of time to maximize their yield.

A user using AMM A will potentially be able to get exposure to AMM A tokens ($AMM) every time they make a trade, maximizing their expected outcome. However, to claim this yield, the user has to learn and understand how to use AMM A and be actively engaged in deriving utility out of it. The user may also be contributing towards its revenue for the services provided.

\
Once the yield towards the end of the utility mining initiative is reduced, the user may choose to remain a long-term user of AMM A, as they were able to derive value out of it and potentially keep using it for its value proposition.

### Why Utility Mining?

Traditional strategies of bootstrapping protocols, such as liquidity mining, are not working as intended. Protocols pay expensive fees to rent liquidity and receive little-to-no long-term benefits. Utility mining rewards users with governance tokens and other incentives, such as higher yield, when targeted on-chain interactions are made by a user. For example, performing a specific action in the protocol (swapping a certain pair, transacting a certain amount, etc.). This method rewards usage and active involvement in the network, ensuring that every participant receives the same value. This leads to a more even distribution of tokens across users, which lowers the entrance barrier for governance and creates a fair playing field.

By using utility mining, a fairer mechanism for the distribution of tokens incentivizing proactive participation in the protocol and broader ecosystem can be established.&#x20;


# Developers


# Build on Superposition using Thirdweb

### Build on Superposition

<table data-view="cards"><thead><tr><th></th><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td>Overview</td><td></td><td></td><td><a href="/pages/ZOEJATBBIA7NJUVqQoqw">/pages/ZOEJATBBIA7NJUVqQoqw</a></td></tr><tr><td>Wallets</td><td></td><td></td><td><a href="/pages/WcjQX0GOf0B4rCtpweJK">/pages/WcjQX0GOf0B4rCtpweJK</a></td></tr><tr><td>Infrastructure</td><td></td><td></td><td><a href="/pages/d384uFNzC6THRbEdeMF6">/pages/d384uFNzC6THRbEdeMF6</a></td></tr><tr><td>Engine</td><td></td><td></td><td><a href="/pages/2gXenuQyO3JMAcDSAPJe">/pages/2gXenuQyO3JMAcDSAPJe</a></td></tr><tr><td>Contracts</td><td></td><td></td><td><a href="/pages/6QfYBWdQ3ZWqWTrRdPmw">/pages/6QfYBWdQ3ZWqWTrRdPmw</a></td></tr><tr><td>SDKs</td><td></td><td></td><td><a href="/pages/YWwl1K3EWQCLyzxgIEee">/pages/YWwl1K3EWQCLyzxgIEee</a></td></tr></tbody></table>


# Overview

## Overview

Welcome to the integration guide for leveraging thirdweb's web3 toolings on Superposition. This overview is designed to provide developers with a foundational understanding of how thirdweb's robust toolkit can be seamlessly integrated with Superposition to create, deploy, and manage dApps and smart contracts with unprecedented ease and efficiency.

### **Thirdweb: Empowering Web3 Development**

thirdweb offers a complete suite of development tools and SDKs that simplify the complexities of web3 development. With features like customizable wallet components, smart contract deployment and interaction, and enterprise-grade infrastructure, thirdweb is at the forefront of enabling developers to build on any EVM-compatible chain.

### **Seamless Integration for Scalable dApps**

Integrating thirdweb's SDK with Superposition allows developers to leverage:

* **Simplified Development Workflow**: Utilize thirdweb's SDK to abstract away the complexities of smart contract development, enabling a focus on building the core application logic.
* **Enhanced Scalability and Efficiency**: Superposition, combined with thirdweb's infrastructure, ensure high transaction throughput and reduced costs, making your dApps more scalable and user-friendly.
* **Comprehensive Tooling**: From smart contract deployment to user authentication and wallet management, thirdweb provides all the necessary tools to build, deploy, and manage your dApps on Superposition.
* **Enterprise-Grade Infrastructure**: thirdweb's Engine offers a backend server solution for reliable smart contract calls, managed backend wallets, and high transaction throughput, all of which are crucial for building professional-grade applications on Superposition.

### **Building for the Future**

By leveraging thirdweb's tooling on Superposition, developers are equipped with the tools and infrastructure needed to build the next generation of dApps. This integration not only simplifies the development process but also opens up new possibilities for innovation in the web3 space, making blockchain technology more accessible and usable for a wider audience.

Embark on your journey to build scalable, efficient, and innovative dApps on Superposition with thirdweb's comprehensive web3 development toolkit.


# Wallets

### Seamlessly onboard and authenticate users in your applications.

<table data-card-size="large" data-view="cards"><thead><tr><th></th><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><p><strong>Connect</strong></p><p>Connect is the complete toolkit for connecting every user to your application. It features customizable onboarding flows, self-custodial in-app wallets, account abstraction, onramps, and more.</p></td><td></td><td></td><td><a href="https://portal.thirdweb.com/connect">https://portal.thirdweb.com/connect</a></td></tr><tr><td><p><strong>In-App Wallets</strong></p><p>In-app wallets are wallets that get spun up for users when they first come into your app. They are designed to help app developers building web3 apps for mainstream audiences build seamless login experiences.</p></td><td></td><td></td><td><a href="https://portal.thirdweb.com/connect/in-app-wallet/overview">https://portal.thirdweb.com/connect/in-app-wallet/overview</a></td></tr><tr><td><p><strong>Ecosystem Wallets</strong></p><p>An ecosystem wallet is your own managed in-app wallet service that allows you to create a branded wallet and login system, and allow any number of partners to spin up in-app wallets.</p></td><td></td><td></td><td><a href="https://portal.thirdweb.com/connect/ecosystems/overview">https://portal.thirdweb.com/connect/ecosystems/overview</a></td></tr><tr><td><p><strong>Account Abstraction</strong></p><p>Everything you need to leverage account abstraction technology to enable seamless user experiences for your users. You get all the tools to integrate account abstraction into your app.</p></td><td></td><td></td><td><a href="https://portal.thirdweb.com/connect/account-abstraction/overview">https://portal.thirdweb.com/connect/account-abstraction/overview</a></td></tr><tr><td><strong>Auth</strong> <br>Auth allows anyone to integrate passwordless web3-native authentication and authorization into their applications. Users can then login using any thirdweb wallet (in-app, browser, or smart wallet).</td><td></td><td></td><td><a href="https://portal.thirdweb.com/connect/auth">https://portal.thirdweb.com/connect/auth</a></td></tr><tr><td><p><strong>Pay</strong></p><p>Pay allows your users to purchase cryptocurrencies and execute transactions with their credit card or debit card, or with any token via cross-chain routing.</p></td><td></td><td></td><td><a href="https://portal.thirdweb.com/connect/pay/overview">https://portal.thirdweb.com/connect/pay/overview</a></td></tr></tbody></table>

[<br>](https://portal.thirdweb.com/connect)


# Contracts

### Tools to easily create, deploy, and manage smart contracts on any EVM compatible blockchain.[<br>](https://portal.thirdweb.com/contracts/deploy/overview)

<table data-card-size="large" data-view="cards"><thead><tr><th></th><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td></td><td>Deploy</td><td></td><td><a href="https://portal.thirdweb.com/contracts/deploy/overview">https://portal.thirdweb.com/contracts/deploy/overview</a></td></tr><tr><td></td><td>Build</td><td></td><td><a href="https://portal.thirdweb.com/contracts/build/overview">https://portal.thirdweb.com/contracts/build/overview</a></td></tr><tr><td></td><td>Interact</td><td></td><td><a href="https://portal.thirdweb.com/contracts/interact/overview">https://portal.thirdweb.com/contracts/interact/overview</a></td></tr><tr><td></td><td>Explorer</td><td></td><td><a href="https://portal.thirdweb.com/contracts/explore/overview">https://portal.thirdweb.com/contracts/explore/overview</a></td></tr><tr><td></td><td>Publish</td><td></td><td><a href="https://portal.thirdweb.com/contracts/publish/overview">https://portal.thirdweb.com/contracts/publish/overview</a></td></tr></tbody></table>


# Infrastructure

### All the infrastructure to scale and build production grade applications.

<table data-card-size="large" data-view="cards"><thead><tr><th></th><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><p><strong>Storage</strong></p><p>Storage is a decentralized file management solution that allows for the storage and retrieval of information "off-chain" using IPFS. With Storage, you can upload and pin files to IPFS and retrieve them at any time using IPFS gateway.</p></td><td></td><td></td><td><a href="https://portal.thirdweb.com/infrastructure/storage/overview">https://portal.thirdweb.com/infrastructure/storage/overview</a></td></tr><tr><td><p><strong>RPC Edge</strong></p><p>Remote Procedure Call (RPC) Edge provides reliable access to querying data and interacting with the blockchain through global edge RPCs.</p></td><td></td><td></td><td><a href="https://portal.thirdweb.com/infrastructure/rpc-edge/overview">https://portal.thirdweb.com/infrastructure/rpc-edge/overview</a></td></tr><tr><td><p><strong>Engine</strong></p><p>Engine is an open-source, backend server that reads, writes, and deploys contracts at production scale.</p></td><td></td><td></td><td><a href="/pages/2gXenuQyO3JMAcDSAPJe">/pages/2gXenuQyO3JMAcDSAPJe</a></td></tr></tbody></table>

[<br>](https://portal.thirdweb.com/infrastructure/storage/overview)


# SDKs

### Build web3 applications that can interact with your smart contracts using our powerful SDKs and CLI.

[<br>](https://portal.thirdweb.com/typescript/v5)

<table data-card-size="large" data-view="cards"><thead><tr><th></th><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><p><strong>Typescript SDK</strong></p><p>Performant &#x26; lightweight SDK to interact with any EVM chain from Node, React and React Native.</p></td><td></td><td></td><td><a href="https://portal.thirdweb.com/typescript/v5">https://portal.thirdweb.com/typescript/v5</a></td></tr><tr><td><p><strong>React SDK</strong></p><p><code>thirdweb/react</code> exports various Components and Hooks to easily connect wallets &#x26; interact with smart contracts</p></td><td></td><td></td><td><a href="https://portal.thirdweb.com/react/v5">https://portal.thirdweb.com/react/v5</a></td></tr><tr><td><p><strong>React Native SDK</strong></p><p>You can use all of the <code>thirdweb</code> and <code>thirdweb/react</code> exports in your React Native app, with some exceptions (see differences).</p></td><td></td><td></td><td><a href="https://portal.thirdweb.com/react-native/v5">https://portal.thirdweb.com/react-native/v5</a></td></tr><tr><td><p><strong>Unity SDK</strong></p><p>A Unity SDK to build games with blockchain and web3 capabilities.</p></td><td></td><td></td><td><a href="https://portal.thirdweb.com/unity/v4">https://portal.thirdweb.com/unity/v4</a></td></tr><tr><td><p><strong>Solidity SDK</strong></p><p><strong>Build</strong> or <strong>Solidity SDK</strong> provides the tools needed to build custom smart contracts more efficiently by offering a set of pre-built base contracts and reusable components, better known as extensions.</p></td><td></td><td></td><td><a href="https://portal.thirdweb.com/contracts/build/overview">https://portal.thirdweb.com/contracts/build/overview</a></td></tr><tr><td><p><strong>.NET SDK</strong></p><p>A .NET SDK to integrate blockchain and web3 capabilities into your applications.</p></td><td></td><td></td><td><a href="https://portal.thirdweb.com/dotnet">https://portal.thirdweb.com/dotnet</a></td></tr></tbody></table>


# Engine

### Engine is an open-source, backend server that reads, writes, and deploys contracts at production scale.

### Why use Engine?

Engine enables your app to:

* Send multiple blockchain transactions at once.
* Resubmit stuck transactions, handling nonce values, gas settings, and RPC errors.
* Avoid duplicate transactions.
* Manage multiple backend wallets and their funds.
* Control access from your backends and team members.
* Sponsor user gas fees.
* Deploy and interact with smart accounts.
* Subscribe to contract events and transactions.

{% embed url="<https://portal.thirdweb.com/engine>" %}


# Free Startup Credits!

Thirdweb Startup Program

### Our startup program is designed to help you build, scale, and generate revenue.

<figure><img src="/files/9My0BUKHnplkkiQCkTqp" alt=""><figcaption></figcaption></figure>

At thirdweb, we're committed to ensuring that the next wave of consumer applications can focus on creating excellent user experiences with blockchain as a powerful backend tool, without worrying about infrastructure or associated costs.

## Over $690 in value

* $100 in usage credits
* 3 Months of Growth for $0 ($297 Value)
* 3 Months of Standard Engine $0 ($297 Value)


# Incentives : Intent Based Yield Distribution

### Intent-Based Transactions: Purpose-Driven Actions

Superposition reconceptualizes transaction execution by focusing on the underlying intent. Transactions on Superposition are more than value exchanges; they contribute to the platform's liquidity and participate in utility mining. This model ensures that every transaction is meaningful and synergistic with the platform's overarching objectives.

***

Developers don't necessarily have to charge a fee for it to be used. Their focus is now on increasing engagement rather than revenue modelling through high transaction costs or gimmicks that would limit users to experience the Dapp.

As users use a dapp and transact within it through the use of Super assets, a portion of the prices could go to the dev's wallet. In that instance the Dev is a partial receiver of a, say item trade, where the two parties conducting the trade earn 80% each of the reward, and the developer 20% (as an example).

Without charging any fees, protocols can gain higher revenues based upon user actions and traction.

In fact, you could remove fees in total which would generate high transaction volume, seeing more potential reward distribution being gained by that developer.


# Arbitrum Layer 3

In the following pages, we're introducing some of the technologies that Superposition is utilising for building a Layer-3 on top of Arbitrum.


# Stylus

Write smart contracts in Rust

Superposition is building on the shoulders of giants. Stylus is Arbitrum’s big bet on the future — Rust powered smart contracts that are 10x less costly than Solidity. Rust is a secure systems programming language leveraging the LLVM toolchain for a high level of optimisation. The Arbitrum team is always pushing the envelope — that’s why Arbitrum is DeFi’s home.

Stylus enables a new way to write smart contracts by introducing a second, co-equal virtual machine that is fully interoperable with the EVM.


# Orbit Chains

A Universe of Chains

Arbitrum Orbit allows Developers to permissionlessly launch their own custom chains that settle on Arbitrum One. It is the technology behind the Superposition Layer-3, and utilises Arbitrum's Nitro Tech Stack to offer high throughput, low transaction costs and more efficient memory usage.&#x20;

It allows Developers to choose a custom ERC-20 gas token for their chain, modular data availability solutions (such as Conduit), self governance as well as utilising Arbitrum Stylus to write Smart Contracts using the Stylus Rust SDK.


# Faucet

Fuel up on Arbitrum Sepolia or Superposition Testnet SPN as well as many other native tokens!

## [Superposition Testnet Faucet](https://faucet.superposition.so)

#### Token output every 5 hours:

* **Superposition Testnet Native tokens:** 0.5 SPN, 0.5 wSPN, 100 CAT and 0.5 fUSDC
* **Arbitrum Sepolia Tokens:** 0.5 SPN

***

### [Arbitrum Sepolia ETH Faucet](https://faucet.quicknode.com/arbitrum/sepolia)

You can request Sepolia ETH quickly by connecting your wallet. You will also have to bridge to mode testnet.

{% hint style="info" %}
You must hold 0.01 ETH on Mainnet to use this faucet and can get 2x the ETH if you share a tweet.
{% endhint %}

***

### [Arbitrum Sepolia USDC Faucet](https://faucet.circle.com/)

***

### [Create WETH on Arbitrum Sepolia](https://sepolia.arbiscan.io/address/0x980b62da83eff3d4576c647993b0c1d7faf17c73#writeProxyContract%23F5)

***


# Block Explorer

{% embed url="<https://explorer.superposition.so>" %}

[Superposition’s block explorer](https://explorer.superposition.so/) is a vital tool for users and developers interacting with the Superposition blockchain. It provides comprehensive tools to help you debug smart contracts and transactions. In this section, we’ll explore what a block explorer is, the features it offers, and the specific explorers available for the Superposition chain.

* **Transactions:** Detailed information on every transaction processed on the blockchain.
* **Account Information:** Insights into account balances, transaction histories, and other relevant data.
* **Application (Smart Contract) Code:** Access to view, verify, and interact with the source code of deployed smart contracts.

***

Here are some things you can explore around the Superposition network:

### View and Verify Smart Contract Source Code

* **Source Code Access:** Easily access and view the source code of smart contracts deployed on the Superposition blockchain.
* **Verification Tools:** Verify the authenticity and functionality of smart contract code to ensure it behaves as expected.

### Detailed Transaction Information

* **Transaction Details:** View comprehensive details about each transaction, including sender and receiver addresses, amounts transferred, and transaction status.
* D**ebugging Tools:** Utilise debugging tools to analyze and troubleshoot transaction issues.

### Comprehensive Block Data

* **Block Details:** Access detailed information about each block, including block height, timestamp, miner details, and the number of transactions included.
* **Historical Data:** View historical data to analyze blockchain performance and trends over time.

<br>


# Longtail AMM

{% embed url="<https://long.so>" %}

Longtail is Superposition's premiere location for trading tokens, providing liquidity, and getting rewarded for every single transaction you make!&#x20;

It is also Arbitrum's cheapest and most rewarding AMM. Using Super Assets, every swap is eligible for yield.

<div data-full-width="false"><figure><img src="/files/0QagUJcGtn2bVCEyqElu" alt=""><figcaption></figcaption></figure></div>

Built as the first proof of concept AMM utilising Stylus, Long Tail is 4x more affordable than Uniswap V3 on Arbitrum.

{% embed url="<https://medium.com/@Superpositionso/arbitrums-cheapest-amm-welcome-to-long-tail-33f2b52c4b9f>" %}

(More information on whether this is the cheapest AMM in the entire web3 space coming soon :wink:)

Every swap is eligible for yield, randomly paid by an offchain worker. These rewards are virtually instantaneous, and are tied to the reward distribution.

***

### Developers

{% embed url="<https://docs.long.so/>" %}

Long Tail is a concentrated liquidity AMM with a custom fee structure per token address. Each pool is assumed to be sUSDC (Super USDC aka fUSDC)/other asset pool. This means that every swap utilising Long Tail is rewarded with yield.


# 9lives

Your one‑stop playground for turning opinions into on‑chain positions. Create, trade, and share markets in seconds; permissionlesss -> no gatekeepers.

{% embed url="<https://9lives.so>" %}

9lives is the most advanced prediction market developed by the Superposition team.

Inspired by DeFi, 9lives combines a constant product market maker with parimutuel markets and a continuous double auction, providing deep liquidity and a risk-free environment for market participants.

<figure><img src="/files/fCh0JWj0X1HRscFHJyR4" alt=""><figcaption></figcaption></figure>

### Why 9Lives?

**Open to anyone:** If you can think it, you can list it—sports, crypto, pop‑culture, even tomorrow’s lunch menu.

**Earn as you predict:** Collect swap fees, creator fees, and referral rewards on every trade.

**Predict from any chain:** Bridge in, predict, cash out; no chain‑hopping headaches.

Built using Arbitrum Stylus, 9lives is the most cost-efficient, and the most advanced platform for trading. With 9lives, traders can easily make predictions, trade their positions, and maximise capital efficiency while benefiting from the safest and most affordable prediction market on Web3.

***

### Feature Highlights

#### Simple Mode

Using [https://9lives.so/simple](#why-9lives) Make hourly price predictions on assets like BTC, PEPE,etc. , equities like NVDA and commodities like Gold, with **cashback** on every trade, no matter if you win or lose.

<figure><img src="/files/He8E0D8fhGhn2INMQK3X" alt="" width="308"><figcaption><p>https://9lives.so/simple</p></figcaption></figure>

You can make a prediction from any EVM chain, and the earlier you predict, the higher bonus rewards you get if you're right! (or refund cashback if you're wrong)

<figure><img src="/files/0AP2JW7zfwfe8qm39M7q" alt="" width="375"><figcaption></figcaption></figure>

#### Fee‑Share & Referral Rewards

Each account gets a unique link. When someone trades via your link you collect a slice of their trading fees stackable forever. Perfect for alpha groups, influencers, and degens who never shut up about their hot takes.

#### Trade, LP & Exit Early

Sell your shares at any time before resolution or provide liquidity to earn trading fees.\
Dynamic pari‑mutuel + concentrated‑liquidity AMM keeps odds tight and slippage low.

{% content-ref url="/pages/nKie9DBd6jymBYVt2kNl" %}
[Guide: Providing Liquidity to your Market](/native-dapps/9lives/guide-providing-liquidity-to-your-market)
{% endcontent-ref %}

#### Flexible Resolution Engine

Beauty contest votes, oracle pulls, or fully autonomous **AI agents** that fetch proofs and sign off results. Choose the trust model that fits your market. ([docs.9lives.so](https://docs.9lives.so/))

#### AI Agent Marketplace (Coming Soon)

Specialised bots (Sarp AI) scour data, post markets, and trade 24/7! Back an agent like a defi vault or challenge its predictions head‑to‑head.

<figure><img src="/files/aLASM8owT3Ir5DtcO8Xi" alt="" width="375"><figcaption></figcaption></figure>

***

You can also build on top of 9lives permissionlesly and take advantage of our advanced dev tooling

{% embed url="<https://docs.9lives.so>" %}


# Guide: Providing Liquidity to your Market

This guide provides a comprehensive overview of becoming a Liquidity Provider (LP) on 9lives, a decentralised prediction market platform leveraging an Automated Market Maker (AMM) system.&#x20;

Learn the strategies, risks, and best practices to maximize your earnings while supporting market efficiency.

***

### Why Provide Liquidity?

Providing liquidity on 9lives offers several benefits, but it comes with inherent risks. Here's what you need to know:

* **Earn Fees from Every Trade:** Collect a percentage of each transaction as a reward for your liquidity contribution.
* **Protocol Incentives:** Top LPs may receive additional rewards through 9lives' incentive programs.
* **Market Efficiency:** Your liquidity helps ensure smooth trading and accurate price discovery.
* **Risk Awareness:** This is not a risk-free endeavor—potential losses due to market volatility or impermanent loss apply.

***

### How It Works

9lives utilises an AMM system tailored for prediction markets. Here's how liquidity provision functions:

* **Equal Outcome Prices**

When you add liquidity with 50/50 odds (e.g., at market creation), you receive 100% liquidity shares.<br>

* **Unequal Prices**

If odds differ, you receive liquidity shares plus outcome shares for all outcomes except the least likely one. This allocation reflects the market's current probability distribution.

***

### When to add liquidity?

#### Best Times to Add Liquidity

Timing is critical for optimising returns. Consider these scenarios:

* Market Creation (50/50 Odds): Adding liquidity at launch maximizes your share of fees and outcome tokens.
* Underpriced Favourites: Provide liquidity when you believe the current favorite is undervalued and likely to win, aligning with your market conviction.

***

#### Worst Times to Add Liquidity

Avoid providing liquidity in these situations to minimise risks:

* Overpriced Favourites: If you suspect the market overvalues the favorite, your returns may suffer.
* Low Trading Volume: Insufficient volume can fail to offset the risks of impermanent loss.
* Disagreement with Consensus: Only challenge market trends if you have strong, data-backed confidence.

***

#### Critical Exit Rule

To protect your investment, follow this key rule:

* Remove Liquidity Before Market Closure! If prices are uneven, withdraw your liquidity to receive shares of losing outcomes. Sell these shares before resolution to avoid potential losses.

***

### Strategy Tips

Enhance your success as an LP with these actionable tips:

1. Add Liquidity Early. Enter at balanced prices to secure a larger share of fees.
2. Monitor Price Movements. Track outcome prices closely to adjust your strategy.
3. Balance Income Streams. Consider both fee income and the potential value of outcome shares.
4. Promote Your Markets! Increase trading volume (and thus fees) by encouraging community participation.

Furthermore... choose markets wisely to maximize profitability

* High Expected Volume: Prioritise markets with active trader interest.
* Conviction in Outcomes: Select markets where you have a strong belief in the result.
* Active Communities: Engage with markets supported by engaged user bases.

*Note: Trading volume is the most critical factor for LP success.*

***

{% hint style="info" %}
**ROI ExampleHere’s a practical example of potential returns**

* Investment: $100 in liquidity.
* Market Volume: $10,000 with a 2% fee rate.
* Fee Earnings: $200 from fees.
* Outcome Shares: Additional value from sellable shares.
* Potential ROI: 100%+ depending on market performance.

High-volume markets on 9lives can yield significant profits, as demonstrated by this scenario.
{% endhint %}

***

**Getting Started**

Providing liquidity on 9lives can be lucrative with active management and a clear exit strategy. Follow these steps:

1. Start Small: Begin with a modest investment to learn the platform's dynamics.
2. Understand Risks: Familiarise yourself with impermanent loss and market volatility.
3. Plan Your Exit: Always have a strategy to withdraw liquidity at the right time.

Ready to Dive In? Visit [9lives Official Site](https://9lives.so/) to get started.

***

**Additional Resources**

* Polkamarkets Help Center - Learn more about AMM systems and LP strategies [here](https://help.polkamarkets.com).
* Primer to DPMs [here](https://dl.acm.org/doi/10.1145/988772.988799).


# Meow Domains

{% embed url="<https://meow.domains/>" %}

Meow Domains is a Web3 Social username service where anybody can mint their very own web3 domain username with a .meow extension.

The `.meow` extension represents the Superposition community. Once the username is minted it belongs to the user forever (no renewing fees).

<figure><img src="/files/G1fiBNeW4FnnXbwlZDgY" alt=""><figcaption><p>gmeow gnyan</p></figcaption></figure>

### Strengthening bonds within the Superposition community

Many people are already using `.eth` names as usernames on Twitter and other social media.

Imagine the same happening for the Superposition community. Having your own domain extension is good for spreading awareness and it also strengthens bonds between members of the community.

### More than just a domain

Web3 names are a digital identity. Superposition members can use domains as usernames when they log into web3 apps. They can also attach additional data to a domain, like a website URL, or a Twitter handle, or email address. Or they can use domains to easily send tokens and NFTs to each other.

The Meow Domains service is built on top of the Punk Domains protocol that is the go-to protocol for many big projects like KlimaDAO, Smol Brains, Layer2DAO and more.

***

## Developers:

### Many possible integrations

Any dApp or web3 frontend can easily integrate with `.meow` domain extensions.

The protocol is completely permissionless and the code is open-sourced.

You can integrate the `.meow`domain into your own applications !

{% embed url="<https://docs.punk.domains/how-to-integrate/>" %}


# Bridge

### **Superposition Mainnet Bridge** <a href="#mode-testnet-bridge" id="mode-testnet-bridge"></a>

There are a variety of methods to bridge in and out of Superposition!

Canonnically, Superpoistion uses [LayerZero](https://docs.fluidity.money/) and [Stargate](https://stargate.finance/) for USDC and bridging purposes, but here is a comprehensive list of ways to bridge into our chain!

* [Superposition Jump](https://jump.superposition.so)
* [Stargate](https://stargate.finance/)
* [Jumper](https://docs.fluidity.money/)
* [Superbridge](https://bridge.superposition.so)
* [Gas.Zip](https://www.gas.zip/)
* [Orbiter](https://www.orbiter.finance/bridge/Base/Superposition?token=ETH)
* [Abitrum Bridge](https://bridge.arbitrum.io/?destinationChain=superposition\&sourceChain=arbitrum-one)

We also Support [Li.Fi](https://docs.li.fi)! So feel free to build products with Superposition in mind.

**Superposition Testnet Bridge**

You can use the Superposition Testnet bridge to deposit and withdraw SPN, USDC and wETH from Arbitrum Sepolia to the Superposition Testnet.&#x20;

Follow [Testnet bridging tutorial](/archived/bridging-to-superposition-testnet) for more information

<figure><img src="/files/W8uf3NgRITcZUInypfMC" alt="" width="375"><figcaption></figcaption></figure>

{% hint style="info" %}
The Superposition Testnet bridge currently supports the following Arbitrum Sepolia Assets:

* SPN
  * Contract Addresses:  [ARB Sepolia](https://sepolia.arbiscan.io/address/0x2F26b901590801476C5bAC1dEbc4E42379127A44)
  * [Faucet](https://faucet.superposition.so)
* USDC
  * Contract Addresses: [SPN](https://testnet-explorer.superposition.so/token/0x6437fdc89cED41941b97A9f1f8992D88718C81c5) | [ARB Sepolia](https://sepolia.arbiscan.io/token/0x2f26b901590801476c5bac1debc4e42379127a44?a=0x7a08EaA93C05Abd6b86bB09B0f565D6fC499Ee35)
  * [Faucet](https://faucet.circle.com/)
* WETH
  * Contract Addresses: [SPN](https://testnet-explorer.superposition.so/token/0xde104342B32BCa03ec995f999181f7Cf1fFc04d7) | [ARB Sepolia](https://arbiscan.io/token/0x82af49447d8a07e3bd95bd0d56f35241523fbab1)
  * [ETH Faucet](https://faucet.quicknode.com/arbitrum)
    {% endhint %}


# Partnering with us

[Superposition's ecosystem](https://superposition.so/mainnet-dapps) is ever growing!&#x20;

If you want to reach out and join us, please feel the form below!

{% embed url="<https://docs.google.com/forms/d/e/1FAIpQLSerpZqW0bSmZCgF6L_zPTKNtK2SGJsit6vsn6SK2_OB7n984w/viewform?usp=sf_link>" %}


# Join us

Job board coming soon. For now, send an email to <jobs@superposition.so> with why you're interested.


# Official Links

**Website:** [https://superposition.so/ ](<https://superposition.so/ >)

**X:** [https://x.com/superpositionso ](<https://x.com/superpositionso >)

**Medium:** [https://medium.com/@Superpositionso ](<https://medium.com/@Superpositionso >)

**Whitepaper:** <https://whitepapers.fluidity.money/spn-whitepaper-0.1.pdf>


# Community Hub

gmeow 🐱

The Superposition community is a vibrant emerging ecosystem, focused on driving utility to the DeFi and crypto ecosystem, adoption of edge technology, as well as  promoting tooling that rewards actions, exploration and feline activities.&#x20;

* Join the community on [Discord](https://discord.gg/VjUWjRQP8y)
* Follow Superposition on [Twitter](https://twitter.com/Superpositionso)
* Enter the [Superposition Community Hub](https://fluidity.notion.site/Superposition-Community-Hub-2c67b509b4f942b6a12dada4cb7f8994?pvs=74) to find out how to contribute to the community and and rank up by earning XP!&#x20;

Make sure to say gmeow in the discord and twitter, and reach out for any questions or idea!&#x20;

We are growing this ecosystem together with you and want to enable and explore different opportunities with our fellow supercats.&#x20;

<figure><img src="/files/o5bUu0dBZyLuhhqRhrvT" alt="" width="375"><figcaption></figcaption></figure>


# ℹ️ Testnet Network Details

### Bridge details (testnet only)

{% embed url="<https://bridge.superposition.so>" %}
Testnet Bridge from Arbitrum Sepolia
{% endembed %}

### Explorer (testnet)

{% embed url="<https://testnet-explorer.superposition.so>" %}
Testnet Explorer
{% endembed %}

### Technical details

<table><thead><tr><th width="380">Description</th><th>Content</th></tr></thead><tbody><tr><td>Network Name</td><td>Superposition Testnet</td></tr><tr><td>Public HTTP RPC</td><td><a href="https://testnet-rpc.superposition.so/">https://testnet-rpc.superposition.so/</a></td></tr><tr><td>Public Websocket</td><td>wss://testnet-rpc.superposition.so</td></tr><tr><td>Chain ID</td><td>98985</td></tr><tr><td>Currency Symbol</td><td>SPN</td></tr><tr><td>Block Explorer</td><td><a href="	
https://testnet-explorer.superposition.so/">https://testnet-explorer.superposition.so/</a></td></tr><tr><td>Fee token on Arbitrum Sepolia</td><td>0x2F26b901590801476C5bAC1dEbc4E42379127A44</td></tr><tr><td>Config</td><td><a href="https://api.conduit.xyz/file/getArbitrumCoreJSON?network=cc9f9c18-6e79-47f5-bf65-518b809c997a&#x26;organization=728beb15-3cf8-4be3-be8e-ed23a3cbced5">https://api.conduit.xyz/file/getArbitrumCoreJSON?network=cc9f9c18-6e79-47f5-bf65-518b809c997a&#x26;organization=728beb15-3cf8-4be3-be8e-ed23a3cbced5</a></td></tr><tr><td>WSPN</td><td><a href="https://testnet-explorer.superposition.so/address/0x22b9fa698b68bBA071B513959794E9a47d19214c">0x22b9fa698b68bBA071B513959794E9a47d19214c</a></td></tr><tr><td>Faucet contract</td><td>0xD1919257706d044f5c218142110431885792bc2B</td></tr></tbody></table>


# 🖥️ Using Superposition Testnet

## Add the Superposition Testnet to your Wallet

To add the Superposition Testnet to your Wallet, head to the [linked tutorial from Metamask](https://support.metamask.io/networks-and-sidechains/managing-networks/how-to-add-a-custom-network-rpc/#adding-a-network-manually) and use the following network details:

| Description     | Content                                      |
| --------------- | -------------------------------------------- |
| Network Name    | Superposition Testnet                        |
| RPC URL         | <https://testnet-rpc.superposition.so/>      |
| Chain ID        | 98985                                        |
| Currency Symbol | SPN                                          |
| Block Explorer  | <https://testnet-explorer.superposition.so/> |

## Get SPN Gas Tokens

SPN is the native gas token of the Superposition Layer-3. In order to receive SPN on the Testnet, you can use the Faucet.&#x20;

1. Head to <https://faucet.superposition.so/>

   <figure><img src="/files/TlN7tNbIp3yVd7aGhf8X" alt="" width="375"><figcaption></figcaption></figure>
2. Enter your wallet address in the field
3. Click on "Request SPN" to receive your gas tokens
4. Upon requesting from the faucet you will receive the following tokens:
   1. **Superposition Testnet Native tokens:** 0.5 SPN, 0.5 wSPN, 100 CAT and 0.5 fUSDC
   2. **Arbitrum Sepolia Tokens:** 0.5 SPN
5. The amount is limited with a cooldown of 1 request every 5 hours
6. [Bridge your SPN into the Superposition Chain ](/archived/bridging-to-superposition-testnet)as well as USDC and wETH!
7. Have fun using your SPN tokens on Superposition Dapps! 💫

## Using the Longtail AMM

Longtail is the first AMM built with Arbitrum Stylus and the first Dapp on the Superposition L3. Every pair on Longtail is paired against a Super Asset, ensuring that every transaction is incentivised and paying you yield for making trades!

<figure><img src="/files/ttOtTLkPsfPQv1QgxYP1" alt="" width="563"><figcaption></figcaption></figure>

1. Head to <https://long.so/>
2. Wrap your SPN to get WSPN or bridge any of our supported tokens from Sepolia, and start swapping! Supported tokens are fUSDC, WETH, USDC and WSPN.
3. Click on the "PRO" button in the Swap section to see stats and history on your selected liquidity pool and assets
4. Go to the "Stake" section to create your own pool and provide liquidity
5. Remember: The more you swap, the more you earn!

## \[Giga:brain:'s only] Create your own token, launch your own contract


# 🌉 Bridging to Superposition Testnet

1. Add the Superposition Testnet to your Wallet ([Click here for a tutorial from Metamask](https://support.metamask.io/networks-and-sidechains/managing-networks/how-to-add-a-custom-network-rpc/#adding-a-network-manually)) with the following network details (You can skip this step if you have already done this):

| Description     | Content                                      |
| --------------- | -------------------------------------------- |
| Network Name    | Superposition Testnet                        |
| RPC URL         | <https://testnet-rpc.superposition.so/>      |
| Chain ID        | 98985                                        |
| Currency Symbol | SPN                                          |
| Block Explorer  | <https://testnet-explorer.superposition.so/> |

2. Head to <https://bridge.superposition.so/>
3. Select the tokens and amount you want to bridge from Arbitrum Sepolia to Superposition under the "Deposit" field.

<figure><img src="/files/jP3qkVYMz37dIbqzU1fo" alt="" width="375"><figcaption><p>Select the tokens and the amount you want to bridge from Sepolia</p></figcaption></figure>

4. Click on "Deposit", approve the token and initiate the deposit
5. You're now good to go! Your tokens should arrive in approximately 10 minutes on the Superposition Testnet
6. Click on "Withdraw" to bridge from the Superposition Testnet back to Arbitrum Sepolia

{% hint style="info" %}
The Superposition Testnet bridge currently supports the following Arbitrum Sepolia Assets:

* SPN
  * Contract Addresses:  [ARB Sepolia](https://sepolia.arbiscan.io/address/0x2F26b901590801476C5bAC1dEbc4E42379127A44)
  * [Faucet](https://faucet.superposition.so)
* USDC
  * Contract Addresses: [SPN](https://testnet-explorer.superposition.so/token/0x6437fdc89cED41941b97A9f1f8992D88718C81c5) | [ARB Sepolia](https://sepolia.arbiscan.io/token/0x2f26b901590801476c5bac1debc4e42379127a44?a=0x7a08EaA93C05Abd6b86bB09B0f565D6fC499Ee35)
  * [Faucet](https://faucet.circle.com/)
* WETH
  * Contract Addresses: [SPN](https://testnet-explorer.superposition.so/token/0xde104342B32BCa03ec995f999181f7Cf1fFc04d7) | [ARB Sepolia](https://arbiscan.io/token/0x82af49447d8a07e3bd95bd0d56f35241523fbab1)
  * [ETH Faucet](https://faucet.quicknode.com/arbitrum)
    {% endhint %}


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