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20 篇文章 含有標籤「dex」

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· 閱讀時間約 3 分鐘
J.

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Hello Chia holders and Hashgreen's friends, welcome back to another Hashgreen's weekly update. Last week, there was a bit of turmoil after Chia posted an announcement in their Twitter, stating that the Chia Asset Token (CAT) standard will be upgraded and CAT1 will be officially end-of-life (EOL) and replaced with CAT2.

In weekly update #18, we're going to tell you about this incident, explaining what were the actions that we took in response to CAT2 standard and how Hashgreen DEX's approach enforces trading security.

Timeline of Chia's actions

Jul 26, 2022 upgrading the CAT standard
Jul 26, 2022 around 10am PDT (after block height 2,311,760) CAT1 EOL
Jul 27, 2022 v1.5.0 live
Jul 28, 2022 blog post updated
Jul 30, 2022 CAT1 vulnerability explained

What happened?

Within a few days, Chia continued to release a series of updates and announcements, finishing upgrading the CAT standard, bringing v1.5.0 live, and explaining what exactly was the vulnerability of CAT1 standard coin after the upgrade was finalized. Details are included in their blog post.

Luckily, this "Cat Bleed" was never exploited, confirmed by Chia's team. The concern was raised by Trail of Bits, a security auditor which helps Chia to audit, addressing "a potential class of vulnerabilities that led the team to uncover a security vulnerability with CAT1". To summarize it, the issue was a potential vulnerability that could be exploited by anyone to print as many fake CATs as they want. Chia later released a technical article explaining the vulnerability they uncovered for CAT1.

Chia also suggested actions for users and CAT issuers to follow in order to move forward from the EOL to CAT2. Users are advised to download 1.5.0 client, cancel their offers, check their CAT1 balance, and wait for the airdrop of CAT2 from issuers. CAT issuers are provided with an official tool for the re-issuance.

Actions for Hashgreen

Jul 26, 2022 halting all trading activities
Jul 27, 2022 reminding users to keep up-to-date
Jul 27, 2022 Chia’s official wallet and API trading back in our DEX
Jul 28, 2022 trade resumed as issuers re-issuing their tokens

Hashgreen were able to react after the news came out on July 26th. We quickly took actions, incorporating frontend, backend, and operations to adapt to the change. We halted all CAT trading activities and offer uploading from our API and tweeted the information to the public, reminding users and token issuers what they should do and be aware of about the upgrade. Before the release of Chia Blockchain 1.5.0, we had also hidden all the CAT1 markets to prepare for CAT2's data migration from TAIL Database.

To prevent any exploit from happening, Chia suggested users to cancel offers that have been uploaded or shared on the internet, especially those providing XCH for CAT1s. With our approach of aggregating offers, you don't have to cancel offers that you uploaded to our DEX since, essentially, no one will be able to take down any of it once all the trading activities are halted.

Our team were able to upgrade Hashgreen DEX and resume all the trading activities hereafter as the CAT issuers continued re-issuing their coins. Once again, if you are a trader, we recommend you to update to v1.5.0 as soon as possible and please beware that CAT1 is no longer acknowledged by Chia's wallet.

信息

Please beware that CAT2 has a different asset ID than its CAT1 version.

· 閱讀時間約 3 分鐘
J.

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🌱 Hello Chia holders and Hashgreen readers, welcome back to another weekly update. In the previous update, we explained two fundamental ideas in decentralized finance (DeFi), that is, order books and swaps. Some of you may already know these concepts, but we believe a succinct explanation is needed to let everybody know what's going on and what product they are using.

This week, we have a few updates that we would like to tell you about.

tl;dr

tutorial page, my orders pagination, adjustment of landing page on the mobile, and the update for amm.

What's Been Done

  • The tutorial for Hashgreen DEX is out now! Considering the complexity and the novelty of DEX, we release a tutorial segment as a guidance for users who are new to our page or not familiar with the landscape of DeFi.
Figure: Tutorial will pop out for first time users.

  • We will guide you through the main features of Hashgreen DEX, in the hope that you will quickly understand how to trade in Hashgreen DEX. (You can also visit our Docs for more information. 💖)
Figure: Follow the steps to learn key features and how to trade.
Figure: You can always find the tutorial here in the navigation bar.

  • We've added pagination in My Orders. A page can display up to 8 transactions, and below the panel lay the pagination buttons where you can click to see your transactions collated and presented in different pages.
Figure: Click different pages to view your orders.

  • Our team has made a few adjustments to the appearance of our landing page on different mobile devices.

What's Rolling

  • We at Hashgreen have had some gradual progress along the way building the AMM. The development is now in full swing. Our team has almost finished the smart contract's high-level design and only micro adjustments are needed for future implementation. We want to secure a seamless end-to-end trading experience in which our dApp interacts smoothly with the connected wallet.

  • Concrete plans of tokenomics and functionalities will be out around early September, and the same goes for the whitepaper. We will release an alpha version, "Alpha Testing", on the testnet and start testing it around early November. Alpha Testing is opened to community members on Testnet10. You are absolutely welcomed to join our Alpha Testing and if you do so, you can accrue alpha tester status (possibly rewards!). Once we make sure everything is well prepared and settled after Alpha Testing, we will formally launch the service, set to release in 2023, on Mainnet. By the time "Mainnet Launch" gets going, it will be available to everyone, accompanied by the releasing of Hashgreen token.

timeline

· 閱讀時間約 4 分鐘
J.

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Hello Hashgreen readers, welcome back to another week of Weekly Update!

Last week, we released an update targeting mobile device users and since then we've received some genuine feedback from reddit. Thank you again for always willing to give us constructive advice, and we will continue working on providing a better experience to the users of Hashgreen DEX. At the same time, we will keep developing and building more services for the community on Chia Blockchain.

This week we would like to introduce two essential components in DeFi, that is, order books and swaps, and share with you the difference and the pros and cons for each design.

What is an Order Book?

definition

An order book refers to an electronic list of buy and sell orders for an asset organized by the price.

  • An order book is widely used in traditional trading markets such as the stock market. Generally, it shows a smooth and aggregated view of a specific financial instrument. It comprises two sides, bidding and asking, dedicated to buyers and sellers.

  • In cryptocurrency, trading platforms such as the centralized exchange (CEX) or the decentralized exchange (DEX) often incorporate order books to display a variety of crypto assets for users to trade. You probably have heard of Binance or Coinbase Pro. They are the top CEXs that people visit and conduct trades.

Understanding Order Books

  • Order books contain these main parts: bid and ask, price and amount, and order history.
Figure: Order book in Hashgreen DEX.

Bid and Ask

  • bid is an order in which buyers bid for a certain amount of shares at a particular price.
  • ask is an order in which sellers ask for a specific price for their shares.

Price and Amount

  • An order book records two sides of the orders:

    • bid side contains information such as all the bids, the amount they wish to purchase, and the price they are willing to pay.
    • ask side resembles the bid side.
  • At the top of the order book is where the highest bid and the lowest ask prices are shown.

Order History

  • Order History records all the transactions that have occurred in the past, including both the bid and the ask sides.
Figure: Hashgreen DEX incorporates trade history into the page.

What is a Swap?

  • When you are trading on DEX, you are carrying out trades in order books. Transactions are only fulfilled by matching ask or bid orders that other people uploaded. "Swap", in cryptocurrency, refers to exchanging the cryptocurrency you have for the equivalent value of another crypto.

  • Swaps offer greater flexibility in designing and constructing the transaction process and more essentially the agreement between two parties to exchange assets for a set period. Examples of swaps in cryptocurrency that the majority of people would most likely use are Uniswap on Ethereum and PancakeSwap on BNB Chain.

Why is Swapping More Immediate?

  • Swapping provides an even better experience for great flexibility, high transaction efficiency, fair price, and efficient price discovery. When you are buying something that must accept DAI, but you only have ETH, then it's a good time to swap.

  • Conceptually, trading and swapping are similar. However, trading with order books usually requires deeper understanding of the design and functionalities of trading and order books, whereas swapping can be as simple as possible for users to execute.

Trading vs. Swapping

trading on DEXswapping on AMM
average waiting timeslowerquicker
transaction speedtiedtied
priceinferiorfair
price discoveryless efficientmore efficient

· 閱讀時間約 3 分鐘
J.

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🌱 Welcome back to another Weekly Update from Hashgreen, Chia's holders and friends! In the previous update, we talked about the updates and guidelines for the translation project of Hashgreen DEX (you are always welcome to contact us via Discord or Twitter to suggest a language or offer to help with the translation), and this week we have brought you an important update especially for mobile device users.

What's Been Done

  • Thanks to the help from our translators, German has been updated to our DEX!

  • Users can now enjoy a better and smoother experience using mobile devices to visit Hashgreen DEX! What are the differences that you see? 🧐 Tell us your feedback!

Figure: Try it out for yourself on the phone!
  • Our team has updated the interface of our DEX to make it render well with mobile devices, granting users an optimal experience no matter which mobile devices you are on.
Which devices do you use the most to visit our DEX? 💻 or 📱?

When would you use your phone to check our DEX instead of your computer?

  • We did observe that there are a number of users who would visit our DEX on their phones from time to time and we believed that there indeed is some latent demand or at least some inherent tendency for the users to visit our website while they are checking their phones. That's why we released this update, adjusting the layout and the aesthetic of our website, for users who opt for mobile devices.

  • One of the reasons we did not make this feature a high priority in our development schedule is due to the fact that users cannot trade with their phones. There might be services that can solve this problem in the future, but for now it's not possible.

  • We asked the community about what devices do you use the most when you visit our DEX, and the answer pretty much echoes with our observation. According to our data in Google Analytics, around 80 percent of the users visit our DEX using their desktops, and 20 percent of them use mobile devices. Isn't this interesting? Although desktop users form the predominant part of our users, there is still demand and feedback from mobile device users.

  • If you have any questions regarding the update or you would like to offer help with the translation, please visit our Discord or Twitter and reach out to our members!

What's Rolling

  • Our team is working on releasing an interactive introduction for users who visit our website for the first time.

· 閱讀時間約 2 分鐘
J.

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What's Been Done

Welcome back to another weekly update for Hashgreen! It's been a great week continuously developing our product, and this week we are going to give you an update on the translation project for Hashgreen DEX and also some random updates of Hashgreen!

  • Hashgreen members were having a monthly meet last Friday! Monthly meets are one of the great ways to keep everyone connected, especially when the members are all working remotely.

  • We are going to have an office space in Taipei!

Updates on the i18n project for Hashgreen DEX

  • Last week, we began the translation project for Hashgreen DEX using Crowdin, a cloud-based localization management platform that enables both collaborative translation and management, and we're lucky to have multiple volunteer translators to help us with our product. So far, we've had 11 project members assisting us with the project and in total 9 languages listed to be translated.

  • Again, we are constantly looking for volunteer translators or proofreaders to help us, so if you are interested in it, please don't hesitate to contact us via [email protected] or visit our Discord for more information.

  • For translators and proofreaders, we prepared a tutorial and some guidelines on how to complete the translation and what they should pay attention to when translating. Below are general explanations to the process of translation:

    1. Achieving "conceptual equivalence" in each of the source and target languages.
      The translation should convey the same meaning as the source language, and it should also remain natural and acceptable in the target language.
    2. Limited length of source string due to the design of the interface.
      Try not to let the translation surpass the original text length.
    3. Completion rate of translation above 95% is the parameter.
      The translator should complete at least 95% of the translation, otherwise the translation will not be updated to our DEX. We will update languages that meet the parameter on a periodic basis.
  • Your assistance is always one of the most precious things that we deeply appreciate, and in order to express our gratitude, there might be some random surprises given to those who help us with the translation project. 😜

· 閱讀時間約 3 分鐘
J.

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Good morning Chia 🌱, Chia's holders and Hashgreen's readers! We are back again for another weekly update. We are excited to share with you some updates for Hashgreen DEX, including the live market trading chart and the language support that comes back. Without further ado, let's get started!

What's Been Done

  • Live market trading chart is now officially released in Hashgreen DEX! Open your trading page and try it out for yourself! Over the past weeks, our team has dedicated to the work of visualization and the facelift of the user interface according to this new feature update.
Figure:✨Brand new interface with the live market chart.✨
備註

When there's a huge amount of data, it usually takes longer time to load. 😬

  • With the live market trading chart, you are able to click through different market pairs to view the real time changes and the history of the difference in price laid out for each market pair. You can decide on your own to select the range of time or the price scale at different intervals, and the chart will change its display correspondently to your adjustments.
Figure: Click here to change the frequency of data aggregation.
Figure: X-axis marks the time. Select different date ranges here.
Figure: Y-axis marks the price. You can choose between different price scales here.

  • The chart will also track your mouse movements and show you the price at a certain point of time when you hover your mouse within the market chart.
Figure: The chart will display the price according to where you lay your mouse in the chart.

  • Language switch option is now back at Hashgreen DEX! It's now located at the right of the navigation bar and changed into a 🌐 button in which a drop down menu will come up and show the languages we support. Currently we have the support for English, Spanish (Latin America), Traditional Chinese, and Simplified Chinese. We will continue to add more languages in the future.
Figure: Click the button to choose the language.

What's Rolling

  • Although we've already had four languages supported now at Hashgreen DEX, we still would like to support as many languages as possible. We posted an announcement at our Discord two weeks ago, asking for volunteer translators to help us. Up to now, we've had a few volunteers who are willing to help! And we still need more people to help! We are now looking for volunteer translators and proofreaders. If you're interested and would like to help, please visit our Discord!

We are always grateful for the help and support you provided to us, and thank you again for the love and support!

· 閱讀時間約 4 分鐘
J.

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Welcome back to another Hashgreen's weekly update! Previously on Weekly Update #11 we talked about the design features that began to take shape for the AMM, hankering for the best outcome to our users and to the ecosystem. We also announced a few updates and a call for volunteer translators. If you are willing to help with the translation, please visit our Discord.

This week we will be taking you through two topics: the AMA we attended earlier this June and our thought and expectation for offer2 according to the feedback from the community.

Hashgreen at Chia in China's AMA

What Chia is trying to solve with its NFT standards

In the AMA held by Chia in China, we introduced our products and talked about offer features and Chia's NFT standards. Below are three factors we mentioned about Chia's NFT during the AMA, namely what Chia is trying to solve and realize with its NFT standards.

  • Autonomous offer trading: to trade without authorization from a third-party platform.

    Chia does not need you to authorize a third-party platform to operate for you. This could fundamentally prevent users from getting scammed.

  • Decentralized Identifier (DID): to verify the authenticity and to prove the ownership.

    Has it ever happened to you when you bought an NFT and later discovered that it was an impersonation scam? This is what Chia wants to solve with its NFT1 standard. DID is like a digital identification that confirms the authenticity. With such method, creators or project owners can have their NFTs connected with their DIDs, proving the ownership with the digital identity.

  • Royalty: to pay profit-sharing to the author of an NFT.

    How many percent of royalty payment should be given to the author of an NFT is what Chia's figuring out and this is going to be one of the core ideas for NFT1.

Chia's NFT is definitely a worthy path to take and a pull factor that attracts developers, investors, and users to come, especially when there's a variety of paths such as DEX, NFT, and DeFi that people have embarked on to develop or build Chia's infrastructure.

Regardless of which path you are going to take or have taken, we, Hashgreen, are always pouring ourselves into helping these projects, including NFTs. Most importantly, providing a steady and strong base for Chia's community is what we expect and choose to do to allow all tokens in Chia to be able to trade.

Committed and Uncommitted Offers

What we think offer2 can hold for us

Offer files (”offers”, “offer1 standard”) have been one of the biggest drivers for the community activities in Chia, as it provides a p2p way for people to trade trustlessly and securely. As one of the first adopters of offer1, we love it so much that we start to think what we ultimately want it to evolve into based on the feedback of many DEX users. We heard these feedback:

  • Why does my attempt to fulfill the offer fail?

    Ok, so this relates to how current offers are structured: they are not commitments on the chain to indicate token swap intentions, but merely a memorandum of understanding. The offer makers can withdraw their offers any second by spending the recorded coins in the offer, while you, the offer taker, have to check if the coin still exists beforehand.

    Can we make this process better? Yes! In fact, the offers should be on chain with two possible exit paths: either via settled swaps or clawback after some timeout. You can be assured that the offer is still 100% valid as long as you peek into the coins and you know for how much longer they will continue to remain valid.

  • Is there a limit price I can put? Partial fill?

    No limit price. No partial fills. Ouch.

    This is most of our experience with the current DEX on Chia, and we understand it so much more. We would call it lack of feature rather than a bug for offer1, as the logic for limit price and partial fills are very custom to fungible tokens. The logic for offer1 is perfect, for example, for NFTs as they need to be exchanged in whole. We think a good offer2 design should leave rooms to house some custom logic, including things like “allowing transactions to go through as long as prices are above this price” and “self re-instantiation if certain conditions are met”.

From an AMM building perspective, we think having an offer2 that satisfies the above criteria would allow an easier exchange of funds, thus increasing liquidity and capital efficiency in the Chia Blockchain. So, rest assured folks, while Hashgreen Labs continues to build on Chia!

· 閱讀時間約 3 分鐘
J.

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What's Been Done

AMM's Design Features Explained

Hi Chia holders! We at Hashgreen have some updates on the long awaited AMM! Over the past weeks, while we have implemented basic building blocks for the smart schemes, more importantly we are composing these blocks to ensure users have great experience trading and participating in our ecosystem.

  • A sustainable token and distribution scheme for the Hashgreen ecosystem:

    We want to bake our tokenomics directly into our AMM by highly incentivizing the first batch of supporters for their rapid adoption. On the other hand, we are considering allowing not only liquidity providers to earn (liquidity mining), but also protocol owners — each and every one who owns the Hashgreen token — to earn.

  • Fair pricing of token pairs:

    We all know there are huge Miner Extracted Values (MEVs) in the Ethereum ecosystem, and especially when it comes to trading, miners can easily manipulate the orders of contract interaction in their favor. Chia Blockchain does not have this problem, and we enforce a rule of single price per block to prevent market manipulation. Everyone who interacts with the AMM gets the same price and does not get front-run.

  • Name your slippage tolerance and commitment period:

    When you put orders in to buy from/sell to the AMM, on top of the assured fair prices, you can additionally specify a maximum slippage tolerance you are willing to accept, and until when the order is valid. These fully adjustable parameters will make interactions with AMM a very familiar experience compared to existing ones you have used before.

There are many more design features we are currently working out! If you have questions, feel free to shoot message at our Twitter or Discord!

What's Rolling

  • Language switch option is about to be released again in the near future! As we would like to support as many languages as possible, we are looking for volunteer translators! If you are interested in providing help, please head to our Discord server and write a message in #translators or DM @HG | Daisy and @HG | James to let us know.

  • Lately we've noticed that there's some impersonation scams in Chia's community and people have been affected by it. Thanks to the community's effort and your report, we were able to identify it and withdrew it from circulation in our DEX. Please be extra careful when you make any transaction, and make sure you have a full understanding of the background of the tokens you're going to trade. The effort in identifying and terminating scams is also attributed to the token listing mechanism in our DEX, where the data is reviewed after being imported from TAIL database API. We are currently working on adding warning messages in the DEX to help you and please keep careful watch for potential scams whenever you trade.

· 閱讀時間約 5 分鐘
J.

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What's Been Done

Over the past week, we've had Goby successfully integrated into Hashgreen DEX and we've also shared an interesting discovery made possible via a tool we developed that analyzes and reifies blockchain activities on Chia. If you'd like to see more of the cool graph analysis, please visit our tweet here and join the discussion.

Transaction Fee and Chia's Coin Set Model

  • We received some feedback from you related to the mechanism of transaction fee and the coin set model that Chia uses. Chia released in Chia Blockchain 1.3.4 the function of allowing makers to create an offer with a fee in order to help get the transaction onto the blockchain. According to the release, now when you want to make an offer in Hashgreen DEX, you can always add a transaction fee via Chia wallet or Goby wallet to ensure the priority of your offer in the queue. (See Best Chia Projects Bootstrapped on Hashgreen DEX for more.)

  • Sometimes problems such as amount higher than spendable balance would occur when you try to make an offer. This is likely due to the characteristics of Chia's coin set model:

According to an article written by Bram Cohen, he explains in the second paragraph:

  • The only persistent data is the current set of unspent coins, which have sizes and rules about how they can be spent.
  • When a coin is spent it can make new coins using its value but the original coin is gone forever.
  • Take the following scenario as an example: You have 20 USDS in your wallet and you'd like to create an offer to buy 1 XCH for 10 USDS.

    • Due to Chia's coin set model, your 10 USDS may consist of different coins in one package. Possibilities of the actual allocation could be: (A) one coin sized 20 USDS, (B) two coins sized 18 USDS and 2 USDS, or (C) whichever amount of coins that sums up as 20 USDS, depending on how the original transaction looks like or how many coins that are originally in your wallet. As you make the transaction, it sends the entire amount (or the highest amount of coin that you have) to the blockchain, then the change will be sent back to you.

    • In such a case where you have one single coin sized 20 USDS, your coin will be sent to the blockchain, destroyed, and split into two coins of 10 USDS, one of which will be spent, while the other will be given back to you. Before the transaction is sent to the full nodes (mempool, actually) and waiting to be included in the blockchain, you may not be able to make another offer since technically you don't have any coins available to be spent in your wallet.

    • Therefore, whenever you try to create another offer, you won't be able to do so, and that alert message amount higher than spendable balance will show up to remind you.

User ID

  • If you are transitioning from one device browser to another, you can use user ID to migrate your order and trade records. Previously on Weekly Update #6, we mentioned the function of user ID and how to use it. We would like to elaborate on this function, explaining more about the use and things for you to notice.

  • Users can import trade records from one device or browser to another. Please note that user ID is bound to the browser you're using. In other words, it will vary depending on the browser or device that you use. When the data migration is done, the original user ID will become invalid, which means you can no longer see the trade records in the original one.

  • Data migration will not be affected by the status of your wallet connection.

What's Rolling

Two weeks ago we had a Twitter poll asking for your feedback about the integration of Goby wallet, and we received a handful of your feedback for the update. We would like to invite you to tell us about your thought of using Hashgreen DEX.

Feedback wanted

  • Now we are looking for users to share with us your feedback. If you're interested in helping us improving our product, drop a message in our Discord channel #ideas-and-feedback or tag @HG | Daisy and @HG | James in #general to let us know! Or you can just tell us about your feeling of using Hashgreen DEX and what can we improve directly at #ideas-and-feedback. Feedback is always wanted and appreciated!

  • Example feedback questions:

    • Your experience using our DEX
    • Opinions of the functions or design we've had
    • Any idea of tools or functions that can be integrated into our product

· 閱讀時間約 3 分鐘
J.

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What's Been Done

  • Goby wallet has officially been integrated into Hashgreen DEX! 🤩 You can now make or take offers for Chia Asset Tokens (CATs) directly in the browser. Enter the amount you wish to trade in Hashgreen DEX to match offers!

  • We've received many valuable feedback, especially those from our Twitter poll since the release of Goby wallet integration on the testnet last week. It seems like the majority of you are all hyped up about the integration of Goby wallet into Hashgreen DEX, so am I! Our team has begun modifying and adjusting details of the integration since last week, and we will keep on making sure that Hashgreen DEX and Goby are well-coordinated.

    • We modified the notification message of wallet connection's status to give users a more definite indication.
    • We fixed the bug in which the displayed address of the wallet was not synced with Goby.

3 Steps to Trade with Goby Wallet in Hashgreen DEX

Prerequisites

Please make sure you have installed Goby web extension with any of the supported browsers and have your Goby wallet ready.

  1. Connect to Goby
Figure: Hit "Connect Wallet" at the navigation bar and a tab "Choose Wallet" will show up.
Figure: Choose Goby as the wallet to connect.
Figure: Connected! You are good to go.

  1. Check wallet information
Figure: Once it's connected, your address will be shown. Click to check wallet information.
Figure: You can copy your wallet address and disconnect your wallet here.

  1. Start trading
  • Hit the offer in Order Book to trade
    Figure: Hit the offer you'd like to take and hit "Trade" once trade info shows up.
Figure: An independent tab will pop up from Goby. Hit "Sign" to approve the offer.

  • Make Offer directly in Hashgreen DEX
    Figure: Enter the amount directly in this section. Hit the arrow if you'd like to switch.
Figure: Once the amount is entered, unit price will be shown and you will be able to hit "Trade".
Figure: An independent tab will pop up from Goby. Hit "Sign" to approve the offer.

Few things to be aware of...
  • As you make a new offer on DEX, Goby will automatically create a same offer in the wallet.
  • If the transaction fails on DEX, make sure to cancel it in Goby as well.

What's Rolling

  • Our development team is working on syncing data between different devices. We discovered the demand and benefit of syncing data across different devices, and it would be natural and more convenient for users to track their orders (i.e. My Orders in DEX), granting the fact that transactions are conducted via different devices of the same user.