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

# How it Works?

Players purchase tickets by selecting the first one (1) to eight (8) hexadecimal characters ( 0 - 9 , a - f ) of any future Bitcoin block hash - referred to as a "**Hash Prediction**". Once the block has been mined and confirmed on the Bitcoin blockchain, any ticket with matching characters will receive a payout based on the number of correct characters and the selected payout structure.

### Step by Step Guide to Purchasing Tickets:

{% stepper %}
{% step %}

### Select Ticket Type

**1) Single** 

One Hash Prediction for a single upcoming Bitcoin block.

**2) Multi Block** 

A single Hash Prediction applied across multiple future Bitcoin blocks.

**3) Multi Hash** 

Multiple Hash Predictions for a single upcoming Bitcoin block.

**4) Multi Multi** 

A set of multiple Hash Predictions across multiple future Bitcoin blocks.

{% endstep %}

{% step %}

### Select Target Block(s)

Choose one or more future block heights to apply your Hash Prediction(s) to.

You may only select blocks after the current block height (i.e., current block + 2 or higher). Block heights update in real-time on the platform to reflect the current state of the Bitcoin blockchain.

{% endstep %}

{% step %}

### Select the Number of Characters

Decide how many hexadecimal characters (0–9, a–f) you want to predict:

* **Minimum:** 1 character
* **Maximum:** 8 characters

The longer the prediction, the higher the potential payout, but the lower the probability of a match.

{% endstep %}

{% step %}

### Choose a Game Mode - Jackpot or Tiered

#### Jackpot - High Risk, High Reward

Requires all characters in your Hash Prediction to match the start of the block hash. 

#### Tiered - Multiple Potential Payout Levels

Pays out based on how many consecutive characters match, starting from the first character.

{% endstep %}

{% step %}

### Enter Hash Prediction(s)

Input your desired Hash Prediction(s), using only valid hexadecimal characters (0–9, a–f):

* Each prediction will need to match your selected character length.
* If using a Multi Hash or Multi Multi ticket, enter multiple predictions.

Tip: For a tickets with a large number of Hash Predictions use the generate button to automatically generate random hexadecimal strings. You can then edit and customize them as needed.

{% endstep %}

{% step %}

### Set Amount Per Ticket

Decide how many Sats you want to stake per ticket:

* The amount you enter will be the cost per Hash Prediction per block and will be multiplied by the payout multiplier for each winning Hash Prediction.
* Higher stakes mean bigger payouts.
* **Minimum Amount:** 100 Sats per order
* **Maximum Amount:** Dependent on the available balance of the Bankroll Liquidity Pool

{% endstep %}

{% step %}

### Review and Confirm 

Double check all ticket inputs and confirm your purchase. 

Once submitted, your ticket(s) will be locked in and assigned a unique ID.

Tickets cannot be edited or cancelled after submission.
{% endstep %}
{% endstepper %}