> For the complete documentation index, see [llms.txt](https://buncha.gitbook.io/oas-jumbo-1/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://buncha.gitbook.io/oas-jumbo-1/introduction.md).

# Introduction

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## What is Oas Jumbo!

This is a service where you can lock OAS and participate in the lottery for free. Oas Jumbo! is operated by Buncha LLC.&#x20;

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## Getting Oas Jumbo!

1.Purchase OAS on an exchange and transfer it to your wallet

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2.Lock OAS into Oas Jumbo! contract for 90 days

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3.Get 1 NFT lottery for every 3000 OAS\
\*NFT will be issued sequentially starting from ID0001\
\*NFT are available for secondary market."<br>

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4.Winner Announcement\
\* The last 4 digits of NFT IDs will be drawn for prizes\
\* NFTs will be sent to the operation team when claiming a prize\
\* Withdrawal deadline is one year from the date of announcement of the winner.

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5.Apply for withdrawal or re-staking after 90 days\
\*It takes 10 days from application to withdrawal.\
\*Re-staking is not possible outside of the period when you can participate in Oas Jumbo!.

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## Ecosystem

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1. User locks OAS to OasJumbo contract
2. Distributing lottery NFTs
3. Oasys staking rewards are pooled
4. NFT winning ID will be determined by on-chain lottery
5. Burn the winning NFT and get the prize money

## Oas Jumbo! Rules

1.NFT ID Assignment Rules

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2.If lottery NFTs are not issued up to the upper limit\
The winning amount and number of prizes will not change.\
Even if there is no winner, the prize will not be carried over to the next prize.