GitBook: [#179] No subject

SUMMARY.md

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 * [Understanding the Bridge](bridge/understanding-the-bridge.md)
 * [Using the Bridge](bridge/using-the-bridge.md)
 
+## 🚅 Orderbook
+
+* [What is the Orderbook?](orderbook/what-is-bridge.md)
+* [Understanding the Orderbook](orderbook/understanding-the-orderbook.md)
+* [Using the Orderbook](orderbook/using-the-orderbook.md)
+
 ## Whitepaper
 
 * [Automated Market Making of Trading Pool](whitepaper/automated-market-making-of-alex/README.md)

bridge/platform-architecture-that-supports-ecosystem-development.md

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-# What is Bridge?
+# What is the Bridge?
 
-<figure><img src="../.gitbook/assets/image (1).png" alt=""><figcaption></figcaption></figure>
+<figure><img src="../.gitbook/assets/image (1) (1).png" alt=""><figcaption></figcaption></figure>
 
 Developed in partnership with [Wrapped](https://app.gitbook.com/s/wFwxyo05u2LDudAxiuAv/), ALEX Bridge connects Stacks and Ethereum, allowing users to move crypto assets between the two blockchains.
 

orderbook/understanding-the-orderbook.md

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+# Understanding the Orderbook
+
+Orderbook uses a hybrid on-chain/off-chain design, whereby a commitment to buy or sell certain asset is communicated in a cryptographically signed message, which is then matched by an off-chain matching engine before settling on-chain.
+
+<figure><img src="../.gitbook/assets/Screenshot 2023-01-07 at 2.51.48 PM.png" alt=""><figcaption></figcaption></figure>
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orderbook/using-the-orderbook.md

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+# Using the Orderbook
+
+ALEX Orderbook is available at [https://orderbook.alexlab.co](https://orderbook.alexlab.co).
+
+## Register with the Orderbook
+
+Users register with the Orderbook and deploy their own wallet to which they make deposits and withdrawals.
+
+At the registration, users provide their public keys so the Orderbook can verify their signed orders.
+
+## Place buy / sell orders gas-free
+
+Users can place buy / sell orders of any tokens supported by the Orderbook without paying transaction fees. They can cancel orders any time. Orderbook ensures that the user wallet balance is sufficient.
+
+All orders are signed by the originating users and the orders are validated with the users’ public keys before settlement.
+
+## Orders are matched and confirmed
+
+Order Matching Engine continuously matches buy and sell orders. Matched orders are sent to Exchange Contract. 
+
+## Orders are settled in aggregate
+
+Exchange Contract validates the matched orders, aggregate them and settle in a single transaction. It updates the order fill, which is then used by Order Matching Engine to optimise the order matching. 
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orderbook/what-is-bridge.md

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+# What is the Orderbook?
+
+<figure><img src="../.gitbook/assets/image (1).png" alt=""><figcaption></figcaption></figure>
+
+Orderbook is ALEX's scaling solution layer that brings **instant trade confirmation** to the security of Bitcoin.
+
+Orderbook uses a hybrid on-chain/off-chain design, whereby a commitment to buy or sell certain asset is communicated in a cryptographically signed message, which is then matched by an off-chain matching engine before settling on-chain.
+
+Orderbook is designed such that many types of market exchanges, not only a traditional CLOB but also an NFT marketplace or social trading, can be built on top.
+
+## Why do we need the Orderbook? <a href="#cdf8" id="cdf8"></a>
+
+Orderbook is ALEX's scaling solution layer that brings **instant trade confirmation** to the security of Bitcoin. Orderbook therefore addresses a key user experience issue our community has on Stocks - that the trade confirmation requires waiting of 10-15 minutes (along with Bitcoin block confirmation).
+
+## What are the benefits of using the Orderbook?
+
+There are a number of benefits for Bitcoin/Stacks users to use Orderbook to trade assets.
+
+### Instant trade confirmation with Bitcoin finality
+
+As we said earlier, Orderbook is our scaling solution layer that combines instant trade confirmation with Bitcoin finality. Orderbook therefore addresses a key user experience issue our community has on Stocks - that the trade confirmation requires waiting of 10-15 minutes (along with Bitcoin block confirmation).
+
+### Gas-free orders
+
+Orderbook uses a hybrid on-chain/off-chain design, whereby a commitment to buy or sell certain asset is communicated in a cryptographically signed message, which is then matched by an off-chain matching engine before settling on-chain.
+
+This design means users of Orderbook can create/close orders gas-free and confirm their orders instantly without having to wait for the underlying block confirmation.
+
+### Security of your assets
+
+You have the full ownership and control of your assets on Orderbook. Zero credit risk.
+
+### By developers, for developers
+
+Ease and fun of development is at the core of Orderbook design. Orderbook is designed such that many types of market exchanges, not only a traditional CLOB but also an NFT marketplace or social trading, can be built on top.