> For the complete documentation index, see [llms.txt](https://four-meme.gitbook.io/four.meme/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://four-meme.gitbook.io/four.meme/openfour/universal-subscription-en.md).

# Universal Subscription

### Overview

Universal Subscription is Four.Meme’s new token launch mechanism, designed for projects expecting strong community demand.

Instead of allocating tokens on a first-come, first-served basis, Universal Subscription uses a subscription-based allocation model. Users participate during a subscription period, and after it ends, tokens are distributed proportionally based on each participant’s share of the total subscription pool.

This mechanism provides a fairer and more transparent launch experience for both projects and users.

### How It Works

1. Users subscribe by committing the amount they wish to participate with during the subscription period.
2. After the subscription closes, the system calculates the total subscribed amount.
3. Tokens are allocated based on each user’s proportion of the total subscription pool.
4. Users only pay for the tokens they are ultimately allocated.
5. Any unused subscription funds will be returned according to the Four.Meme product page and smart contract settlement process.

#### Example

A project plans to sell tokens worth 100 BNB, but receives 1,000 BNB in subscriptions.

If you subscribe with 10 BNB, you own approximately 1% of the subscription pool, so you’ll receive around 1% of the tokens for sale. Only the corresponding amount of your subscription is used, while the remaining funds are returned after settlement.

### Universal Subscription vs. Traditional Presale

| Traditional Presale                           | Universal Subscription                                                                      |
| --------------------------------------------- | ------------------------------------------------------------------------------------------- |
| First come, first served                      | Participate anytime during the subscription period                                          |
| Usually has a fixed hard cap                  | Supports oversubscription                                                                   |
| Allocation confirmed immediately              | Allocation calculated after the subscription ends                                           |
| Often requires fast transactions and high gas | Fairer participation with proportional allocation                                           |
| Users usually spend their full contribution   | Only the allocated amount is spent; unused funds are returned according to settlement rules |

<br>

### Key Features

* Proportional Allocation – Tokens are distributed according to each user’s share of the subscription pool.
* Oversubscription Support – Popular projects can accept demand beyond the target raise while maintaining fair distribution.
* Flexible Launch Configuration – Developers can customize token supply, sale allocation, liquidity allocation, and fundraising parameters.
* Anti-Sniping Protection – Helps reduce bot sniping, same-block attacks, and unfair trading at launch.
* Tax Configuration – Supports tax settings, tax whitelist, and tax expiration.
* Whitelist Support – Projects can choose to restrict participation to approved wallets.

<br>

### Fees

#### Campaign Creation Fee

Creating a Universal Subscription campaign requires 0.2 BNB.

#### Platform Fee

Four.Meme charges a 10% platform fee only on the portion of raised funds retained by the project.

If all raised funds are used to provide liquidity, no platform fee is charged on those funds.

<br>

### Benefits

#### For Projects

* Better suited for high-demand launches.
* Fair distribution without first-come, first-served competition.
* Flexible launch parameters.
* Built-in anti-sniping protection.
* Transparent fundraising and settlement.

#### For Users

* No need to compete on speed or gas.
* Fair proportional allocation.
* Oversubscription does not mean spending your full subscription amount.
* Better protection during token launch.

### FAQ

#### What is the difference between Universal Subscription and a traditional presale?

Traditional presales typically allocate tokens on a first-come, first-served basis and often stop once the hard cap is reached.

Universal Subscription uses a subscription-based allocation mechanism. Users can participate at any time during the subscription period, and after it ends, tokens are allocated proportionally based on each participant’s share of the total subscription pool. If the sale is oversubscribed, only the amount corresponding to the final allocation is used, while the remaining subscription funds are returned according to the settlement rules.

#### Does subscribing earlier increase my allocation?

No. Allocation depends on your share of the total subscription pool, not when you subscribed.

#### Will all of my subscribed funds be used?

Not necessarily. Only the amount corresponding to your final token allocation will be used.

#### Will unused funds be refunded?

Under the Universal Subscription mechanism, unused subscription funds are expected to be returned after settlement. The refund process, timing, and claiming method are subject to the Four.Meme product page and smart contract.

#### How are platform fees charged?

Four.Meme only charges a 10% platform fee on the portion of funds retained by the project. Funds used entirely for liquidity are not subject to this fee.

### Risk Disclaimer

Universal Subscription improves how tokens are distributed—it does not guarantee project quality or investment returns.

Please carefully evaluate each project’s fundamentals, tokenomics, liquidity arrangements, tax settings, and associated risks before participating. All rules are subject to the Four.Meme interface and deployed smart contracts.

## Universal Subscription（CN)

### 概述

Universal Subscription 是 Four.Meme 推出的全新代币发行机制，适用于高热度项目。

不同于传统先到先得的模式，Universal Subscription 采用订阅式分配机制。用户在订阅期内完成认购，订阅结束后，系统将根据每位用户认购金额占全池认购金额的比例统一分配代币。

这一机制为项目方和用户带来更加公平、透明的发行体验。

### 如何参与

1. 用户在订阅期内提交认购金额。
2. 订阅结束后，系统统计全池认购金额。
3. 根据每位用户的认购占比分配代币。
4. 用户仅支付最终分配到代币对应的金额。
5. 未使用的认购资金将按照 Four.Meme 页面及链上合约规则完成结算和退回。

#### 示例

项目计划售卖价值 100 BNB 的代币，但最终收到 1,000 BNB 的认购。

如果你认购 10 BNB，约占总认购池 1%，最终将获得约 1% 的售卖代币。实际只会支付对应代币的金额，其余未使用资金将在结算后退回。

### 与传统预售的区别

| 传统预售      | Universal Subscription |
| --------- | ---------------------- |
| 先到先得      | 订阅期间均可参与               |
| 通常有硬顶     | 支持超募                   |
| 即时确认额度    | 订阅结束后统一按比例分配           |
| 拼手速、拼 Gas | 更公平、更友好的参与体验           |
| 提交多少花多少   | 仅支付实际分配部分，剩余资金按规则退回    |

### 功能特点

* 按比例分配：根据认购占比分配代币。
* 支持超募：热门项目可承接更多认购需求，同时保持公平分配。
* 灵活配置发行参数：支持设置代币总量、售卖数量、流动性及募资参数。
* 开盘反狙击：降低机器人抢跑、同区块狙击及恶意交易影响。
* 税费配置：支持税费、税费白名单及税费到期时间设置。
* 白名单支持：项目方可限制指定钱包参与订阅。

<br>

### 费用说明

#### 创建费用

创建 Universal Subscription 活动需支付 0.2 BNB。

#### 平台费用

Four.Meme 仅对项目方保留的募集资金收取 10% 平台费用。

若募集资金全部用于提供流动性，则无需支付该平台费用。

### 优势

#### 对项目方

* 更适合高热度项目发行。
* 无需抢额度，更公平地完成募资。
* 灵活配置发行参数。
* 开盘反狙击保护。
* 更透明的募集与结算机制。

#### 对用户

* 无需拼手速、拼 Gas。
* 按比例公平分配。
* 超募时无需支付全部认购金额。
* 更好的开盘交易保护。

### 常见问题

#### Universal Subscription 与传统预售有什么区别？

传统预售通常采用先到先得模式，并在达到硬顶后结束募集。

Universal Subscription 采用订阅式分配机制。用户可在订阅期内任意时间参与，订阅结束后按照认购金额占全池认购金额的比例统一分配代币。若出现超募，用户仅支付最终分配到代币对应的金额，其余未使用的认购资金将按照结算规则退回。

#### 越早参与会获得更多代币吗？

不会。最终分配取决于认购金额占全池认购金额的比例，而不是参与时间。

#### 我认购的资金都会被使用吗？

不一定。最终仅支付实际分配到代币对应的金额。

#### 超募后的剩余资金会退回吗？

按照 Universal Subscription 机制，未使用的认购资金预计将在结算后退回。具体退款时间、领取方式及流程请以 Four.Meme 页面及链上合约为准。

#### 平台如何收费？

Four.Meme 仅对项目方保留的募集资金收取 10% 平台费用；若募集资金全部用于提供流动性，则无需支付该部分费用。

### 风险提示

Universal Subscription 优化的是代币发行和分配机制，并不代表项目质量或投资收益。

参与前请充分了解项目基本面、代币经济模型、流动性安排、税费设置及相关风险，所有规则最终以 Four.Meme 页面及链上智能合约为准。