# Participation Guide: PreSale Vaults

### **How It Works**

**1. For Eco PreSale Vaults: Lock Partner NFTs + Funds**

* Users must lock their **Partner NFTs and funds** (in stablecoins or project-specific tokens) into the PreSales Vault for a predetermined period.
* This creates a **commitment-based** entry system, ensuring only serious participants gain access while minimizing bot interference.

**2. Oversubscription Handling**

* If demand exceeds supply, projects can choose from multiple options to distribute presale spots fairly:
  * **Lottery:** Random selection of eligible participants.
  * **Gamified Access:** Users complete on-chain or social tasks to qualify.
  * **Social Verification:** Proof-of-identity or community-based access requirements.
  * **Lock-In Periods:** Priority given to users who lock their funds/NFTs for longer durations.
  * **Tiered Access:** Projects can set different allocation tiers based on contribution levels.

**3. Get Access to the Presale**

* Once the lock period ends, eligible participants receive presale NFTs **airdropped directly** to their wallets at launch.
* Locked Partner NFTs and funds act as a **ticket** to the presale, ensuring only engaged users participate.

## **Example Use Case**

A project wants to prevent bots and create a fair presale. They launch a **PreSales Vault** where users must lock a **Partner NFT + 1,000 USDC for 2 weeks**. In return, they receive:

*  **10% discount on the NFT launch price.**
* **NFT Airdropped on the launch day.**
* **Exclusive access or benefits for future project events or NFTs.**

If **oversubscribed**, the project chooses a **lottery system** to fairly distribute allocations.

The **PreSales Vault system** not only secures a **fair and transparent presale** but also enhances community involvement, making every launch a high-energy event.


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