Sports betting

Make bets peer-to-peer or through the betting bot.

Sport betting on Byteball

Byteball offers the possibility to safely bet on sport events by making a conditionnal payment that depends of a match result posted by a third party (called the sports-oracle) into the DAG. It’s one of the most easy way to bet using a crypto-currency.

In March 2018 these championships were available for betting:

• Basketball: NBA
• Baseball : MLB
• Ice hockey : NHL
• American football : NFL
• MMA : UFC
• Soccer : Champions League, Ligue 1 and 2, Premier League, Premiere Division, Bundesliga 1 and 2, Brasil Série A, Primeira Liga, Italian Serie A and B, League One and Two, Eridivisie, World Cup, European Cup.

The sports-oracle is operated by the Byteball lead dev, you can check the code source on github : https://github.com/byteball/sports-oracle

There is 2 ways to bet on sport with Byteball :

• Completely P2P with someone that paired his wallet with yours –See P2P betting
• Using the sport betting bot that acts as a betting marketplace and facilitate the smart-contracting – See Sports betting bot

P2P betting

To conclude a bet P2P you need to be in touch with someone that accepts to be the counterparty of your bet. You will both send to a smart-address an amount of bytes corresponding to the odds you have negociated. According to the result, you or your pair will be able to take back the totality of bytes put on stake.

Obtaining the feedname

To make a sport bet with someone, first you need to obtain the feedname of the desired fixture. This feedname will then be used in the contract you will conclude with your pair. To get this feedname from the sports-oracle bot, follow these steps:

1. Click on chat → bot store tab → sport-oracle → open chat
2. Click on the championship corresponding to the desired fixture.
3. Click on coming fixture.
4. Click on the desired fixture.
5. The bot will give you a feedname similar to this ‘BROOKLYNNETS_CHARLOTTEHORNETS_2018-03-21’, copy and paste it somewhere (in your notepad for example) to keep it under hands.

Pairing with your counterparty

In order to conclude a smart-contract (called conditionnal payment in this case), you have to be paired with your counterparty.

- Click on chat → contact tab → add a new device → invite the other device. - Copy the pairing code and send it to your pair. - Your pair has to click on chat → contact tab → add a new device → accept invitation and paste the received code.

You’re now in an encrypted chat with your pair and will be able to propose him a conditionnal payment,

Proposing the conditionnal payment

- Ask your pair to insert his address, to do so he has to click on the 3 dots (…) bottom left and click on insert my address then send it. - On your side, click on the address and choose ‘offer a contract’.

The contract is self-explaining and describe precisely the different conditions for which you or your pair can take the bytes put at stake. You have to select ‘sport betting’ as oracle, paste the feedname obtained previously from the sport-oracle and select ‘=’ as the logic operator and use one the team as expected condition using the exact same format as in feedname. ex : BROOKLYNNETS_CHARLOTTEHORNETS_2018-03-21 = CHARLOTTEHORNETS means that the condition is Charlotte Hornets winning.

Remarks : - On third field, the time-out should be set before the beginning of the fixture otherwise your pair could cheat by deciding to fund or not the contract when already knowing the result. - On last field set a time at least 3 days after the fixture for in case the oracle would post the result with some delay. - If the fixture is canceled or postponed to another day, the oracle would never post the feedname and the condition won’ t realize. You have to consider the bet as a ‘show and win’ and the negociated odds should consider that. If you want that both parties get a refund as they would with a casual bookmaker, then better use the betting bot that offers a more elaborated contract.

When your contract is set as you wish, send it and your pair will get a payment request that indicates him all the terms of the contract, the bet will be active once he paid his part to it. If he wouldn’t pay, you could get your bytes back after the time set on the third field,

Getting the payout

- The sports-oracle usually posts the result 6 hours after the fixture, it sends you a notification when result is posted in DAG and thus you can get the payout, If the result matches the condition set, one of the gambler can get the pay-out immediately, If not, one has to wait the end of the expiry time-out to get the pay-out. Getting the pay-out is done by moving bytes from the smart-address to one of your main addresses, to do it, go to your wallet home and select the subwallet corresponding to the bet (click on wallet middle-top), then click on ‘send ‘ and make a transaction that sends all the bytes to your main wallet. After confirmation time, your bytes are available on main balance and ready to be spent.

Sports Betting Bot

This chatbot is a market place where gamblers and bookmakers can meet. It is divided in two modes :

- taker mode : it’s the default mode which allows a gambler to place a bet with only a few clicks. A human-readable smart-contract is proposed so the gambler doesn’t have to trust the bot, the result is given by a third-party (the sports-oracle) and it’s possible to get the pay-out even if the bot went down.

- maker mode : it’s a more advanced mode for people wanting to earn bytes by acting as bookmakers. The bookmaker set odds to be proposed for the fixtures of his choice then the bot redacts and proposes a smart-contract for gamblers willing to take the offer.

Pairing with the chatbot :

In order to use the betting bot, you need to pair with it. To do so click on chat→ bot store tab → Betting bot (Semi-trustless) → open chat Once paired you can access it at any time from your list of contacts,

Selecting a bet :

On welcome text, the chatbot shows the best odds available for the upcoming fixtures. They are classified by time and you can browse them by clicking on ‘next’ or ‘previous’. It’s possible to filter by sport by clicking on one of the sport icon. If you don’t find the fixture you desire, you may look again a few hours before its beginning since most bookmakers tend to propose their odds at last time in order to not block their funds for a long time. For every sport but soccer, 2 odds are shown. The first is the decimal odds for the home team winning, the second is the decimal odds for the away team winning. For soccer 3 odds are shown, the middle one being the decimal odds for a draw, If n/a appears instead of a odds, it means that no odds has been set for this outcome thus it’s not possible to bet. You can consider to come back later since most bookies propose their odds only few hours before the fixture.

Once you clicked on the desired odds, the bot indicates what would be the pay-out depending of the amount you put on stake. Since the bot selects the best offers from the different bookmakers, the resulting odds can decrease as long as the stake increases. You can directly click on a suggested amount or type the precise amount you want to put at stake. After you’ve inserted your address into the chat as requested, you will immediately receive a payment to a smart-address corresponding to your potential gain and you will be asked to pay your part to it.

Paying the bet :

Click on the payment request, an human-readable smart-contract will be shown, scroll-it down then click on send payment. The bot will notify that a your payment is pending and a few minutes later when confirmed.

Getting the payout :

Usually 6 hours after the fixture, the result will be posted into the DAG by the oracle and the contract will be unlockable by one of the party. The bot will detect when the result is posted and notify you the result, In case you’ve won you are invited to take your gains from the shared-address.

Getting the payout is done by moving bytes from the smart-address to one of your main addresses, to do it, go to your wallet home and select the subwallet corresponding to the bet (click on wallet middle-top), then click on ‘send ‘ and make a transaction that sends all the bytes to your main wallet. After confirmation time, your bytes are available on main balance and ready to spend. In case you’ve lost, you have nothing to do, the bot takes back the bytes and the shared-address is not shown anymore on your wallet. If the fixture would be canceled or postponed, the oracle wouldn’t post the feedname used by the contract, in this case the contract allows the bot to take the bytes 5 days after the fixture in order to refund both parties.