Terms of Service

These terms

These terms apply when you use the S☉Lucky website and app, run by Nexow, Inc. (“we”, “us”). By using it, you accept them, along with the Privacy Policy and the Cookies & storage page. If you do not accept them, do not use the site.

The game itself is a Solana program: open source software that runs on the Solana network, not on our servers. The site is one way to use it; anyone can also use the program directly.

Who can play

• You must be 18 or older.
• You may only play where lotteries and online games of chance are legal for you. Checking that is your responsibility; we do not check where you are.
• Do not play for someone else, or with SOL that is not yours.

Test SOL and real SOL

This site runs on Solana Devnet. Tickets cost test SOL, which is free from a faucet and has no value: it cannot be exchanged for real money, and neither can anything you win with it.

How a round works

The program enforces these rules; the site only shows them:

• S☉Lucky has three games. In the daily lottery, a round runs per UTC day, from 00:00 UTC to the next midnight; in the hourly lottery, per UTC hour. In Guess the number, a round has no end time: it runs until a guess finds its number.
• A ticket is one number, from 0 to the highest number set in the program’s configuration. Each number can be held by one ticket per round.
• Each game has its own ticket price and house fee. They are copied, with the highest number, when a round opens, and stay fixed for that round. The fee can never be more than 20% of the pot. When you buy, you never pay more than the price you were shown.
• Every ticket’s price goes into the round’s pot, held by the round’s own account on Solana. In the lotteries, a random number from 0 to the highest number is drawn and the ticket closest to it wins; a tie goes to the lower number. In Guess the number, new guesses are checked in batches: a batch holds the number with odds of its guesses over the numbers not tried yet, the same odds as for a number hidden when the round opened.
• Once a lottery round has ended, or as soon as new guesses wait for a check, anyone can close the round, draw it and pay it. The winning ticket’s owner receives 80% of the pot, the house fee goes to the treasury, and the rest stays in the program for the game’s next round to be drawn.
• A ticket account also holds a small rent deposit, which you get back by closing the ticket once its round is paid. The first ticket of a round also pays the rent of the round’s account, which stays on Solana as the round’s public record. In the lotteries, each ticket also pays the rent of the 4 bytes its number takes in that account, which is not returned.

Your wallet and transactions

• You play with your own wallet. We never hold your keys, your SOL or your tickets, and we cannot move them.
• You sign every transaction yourself, and you pay Solana’s network fees. Confirmed transactions are final: we cannot cancel, reverse or refund them.
• A ticket’s number, its owner’s address and the country flag you choose for it are public on Solana for good. The Privacy Policy explains what that means.
• Keep your wallet’s keys safe. Nobody, including us, can recover them for you.

What the operator can and cannot do

The program’s configuration has an authority, which can:

• change each game’s ticket price (at least ◎0.002) and house fee (at most 20%), effective from that game’s next round to open;
• pause and resume new rounds. A pause stops new rounds from opening: a round already on sale keeps selling until it ends, and every round can still be drawn and paid;
• change the treasury, the highest number, and the authority itself.

The program’s code does not let the authority, or anyone else, take a round’s pot or send it anywhere but to the winning ticket’s owner, the treasury’s fee and the game’s next round, take more than the fee, or charge a buyer more than the price they were shown.

The program is upgradeable: whoever holds its upgrade authority could deploy different code, so you are trusting them until the program is made immutable or handed to a multisig. The source of every version is public, and a deployed program can be checked against it as the README’s “Verifiable builds” section explains.

Risks

By playing, you accept that:

• software can have bugs, including the program, the app and your wallet, and a bug could cost you your tickets or your SOL;
• Solana or the RPC endpoint the site uses can be slow, congested or down, and a transaction can fail or arrive after a round closes;
• the draw uses the hash of a Solana slot that nobody knows when a round closes or a batch of guesses is sealed. Players cannot predict it, but the validator that produces that slot could bias it, and whoever closes a round could hold back an unfavourable draw until that slot can no longer be read. It is not a verifiable randomness oracle;
• the site can be unavailable at any time. The program, and your tickets, keep working without it;
• laws on lotteries and crypto-assets differ between countries and can change.

Using the site fairly

Do not attack or overload the site or its servers, try to get around their limits, interfere with other players, or use the site to break the law. We may block access from anyone who does.

No warranty

The site and the program are provided “as is”, without any warranty. To the extent the law allows, we are not liable for any loss that comes from using them, including lost tickets, failed or late transactions, bugs, network problems, or a draw you consider unfair. Nothing in these terms limits a liability that the law does not allow us to limit.

Open source

The program, the app and the operator scripts are open source under the MIT License: see the source repository. That license covers the code; these terms cover using this site.

Changes

We may update these terms. The date at the top shows the last change, and the version shown here applies from that date.

Contact

Questions about these terms: admin@nexow.ai.