> For the complete documentation index, see [llms.txt](https://saltswap.gitbook.io/salt/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://saltswap.gitbook.io/salt/core-products/lottery.md).

# Lottery

**Specifics:**

* Lottery Ticket Fee for 1 ticket: 1 SALT
* Single User Lottery Entry Limit: No limit
* Paying for one ticket (1 SALT) will give users a random 4 digit combination with each digit being between 1-9, for e.g. "8-9-3-2"
* In the UI, users can choose to enter a multiple of 1 SALT, which will buy them multiple tickets.

**How to win:**

To win the lottery jackpot (50% of the entire lottery pool), users need to match all 4 numbers on their tickets in the same position as the 4 winning numbers.

If you don't match all 4, no need to worry. As long as you match 2 or more numbers in the correct position, you are guaranteed to win a reward.

**Winning Ratio:**

* Match all 4 numbers in the exact order = win 50% of the pot (or split the pot if more than 1 winner).
* Match 3 numbers in the exact order = win or split 20% of the pot.
* Match 2 numbers in the exact order = win or split 10% of the pot.
* Burn remaining 20% of the pot.

For example, if the final 4 winning numbers are "1-9-3-2":

* "1-9-3-2" = match all 4
* "1-9-2-2" = match 3
* "2-3-3-2" = match 2
* "1-2-1-2" = match 2

**Lottery phases:**

The first lottery round will last for 3 days, the subsquent ones will be gradually reduced.

An example:

**Phase 1 - Buy Tickets**

* Go to <https://www.saltswap.finance/lottery> and buy your tickets.
* The lottery jackpot will accumulate at the top of the page with each ticket bought.
* Users will receive a ticket (comprised of 4 digits) for each 1 SALT paid.

**Phase 2 - Lottery Draw!**

* The 4 winning lottery numbers are drawn and will appear on the page.
* Each participant's winnings will be automatically calculated based on their ticket numbers and shown on the page.
* Users can claim winnings if they have any.
* Users will also be able to see the lottery results: How many users matched all 4 numbers, 3 numbers and 2 numbers.

**Phase 3 - Celebration and Sharing (1:30 AM - 2 AM)**

If you won, congrats! Share with your friends or in our community groups.

The next lottery starts soon!

**How are ticket numbers drawn?**

The lottery aims to be completely random. Even though the ticket numbers given out are determined by a front-end logic, there is an extremely low chance that anyone is able to determine the 4 winning numbers ahead of time.

* The 1st lottery number will be determined based on the %10 remainder of a hash encoded by the blockhash and the number of participating users at the entry deadline.
* The 2nd lottery number will be determined based on the %10 remainder of a hash encoded by the blockhash and the total pooled salt balance at the entry deadline.
* The 3rd lottery number will be determined based on the %10 remainder of a hash encoded by the blockhash and the timestamp of the last lottery participant at the entry deadline.
* The 4th lottery number will be determined based on the %10 remainder of a hash encoded by the blockhash and the block difficulty at the entry deadline.

For the exact code on how the above is calculated, please refer here.