# HashFlow FAQ Part 1 By [ Mehdi](https://paragraph.com/@zkmehdi) · 2022-02-26 --- ### Hashflow frequently Asked questions Part 1 **What is Hashflow?** Hashflow is a decentralized trading protocol that connects traders and liquidity providers directly with professional market makers. - Traders can trade popular spot assets at the best rates with low fees and no slippage. - LPs can earn competitive yields without experiencing impermanent loss. **What does OTC mean?** OTC (over-the-counter) refers to buying and selling securities outside of an exchange. OTC investments can include penny stocks, bonds, derivatives, ADRs, currencies and Cryptocurrencies. OTC markets are electronic networks that allow two parties to trade with each other using a dealer-broker (Hashflow for example) as an intermediary. **How does Hashflow is different from Other AMM DEXs like uniswap?** Hashflow uses Traditional/institutional market makers for pricing assets Offchain. But in AMMs, Pricing assets is On-chain and smart contract do the market making. Anyway, in both cases Execution and Settling Transaction is Onchain in a very Decentralized, Trustless, Permissionless Manner. So, one of the Main Differences here is how they both Pricing Assets. But there are other differences too. **What is the Current problem in DEXs?** DEXs today support small trades well, but struggle to provide competitive pricing for medium & large trades. Hashflow is going to address this by bringing CeFi market makers in defi with Competitive price quotes for any kind of Assets and traders, especially for large and medium trades. **How Hashflow is going to act as an intermediary between CeFi and DeFi?** Hashflow Gives traditional/institutional Market maker the Flexibility, Same Flexibility they are experiencing in CeFi like Price Discovery of different assets, Low fee Trading, Changing Strategies, Speed, Scalability, KYC options for their Counter Parties and more, while allowing them to apply them At Defi Level. That’s the Power of Hashflow. **How Hashflow is Gas Efficient?** Hashflow Hybrid Mechanism is Simple, it does not use Mathematical Formula and Bonding Curve for Pricing Assets like AMMs, they are Calculated Offchain by Market Makers and Because of this, they only need least Gas required for onchain Activities Like Swapping two tokens. Since there is no Complexity at Contracts, Gas prices are super cheap. besides, for Changing and deploying Strategies in AMMs, you need to spend onchain Gas, but in Hashflow, you don’t need pay or spend anything onchain, they are all happens offchain. **What do You mean By Hybrid Mechanism?** it means Using CeFi Market Makers at DeFi Level at the Same Time. **how hashflow has zero Slippage?** it’s because it does not use AMMs and bonding Curves to Causing imbalance at Pool level so Price Slippage happens. Price Quotes in Hashflow are pre agreed upon By Users and Market makers and even there is no room for MEVs and Sandwich attacks. **What is MEV and How Hashflow is MEV-Resistance?** Maximal (formerly "miner") extractable value (MEV) refers to the maximum value that can be extracted from block production in excess of the standard block reward and gas fees by including, excluding, and changing the order of transactions in a block. So, in Simple word means that the Miner take the last look at the block they are producing and may Use the power of ordering transactions to extract some value from that Opportunity. In case of AMMs, This Usually happens when a miner notice that a trade can change the price of an asset on either Directions and then they try to use that opportunity by frontrunning that transaction, so they can make some profits out of it and extract Value from it. But in hashflow, there is no bunding curve, there is no AMM, Price Quotes are pre agreed upon and  everything happens in the simplest way. There is no room for MEVs and Sandwich attacks. A simple Swap operation with the least minimum gas requirement will be executed on onchain. **Can You Explain About Signature Based Pricing?** Hashflow Uses a Signature Based Pricing which means Every time a User Request a Quote of an Asset Via RFQ System, Market makers Use the inventory of asset laid in the pools to Sign a Quote with their Private Keyes. If User likes the quote, then they can take it and broadcast it on the network So trade be Executed against the pool. **How much is trading fees on Hashflow?** Currently Hashflow does not Charge Users any amount of Fees. After TGE, Community Will decide through a proposal governance. But Overall, The Fees will be Much lower Compared to an AMM DEXs like Uniswap which they Charge 30bps (0.3%) on a popular pool like ETH/USDC, 30bps for Market makers is a huge amount. **Who are Hashflow Competitors and how Hashflow is different from them?** Currently, in general both 0x and Hashflow are using RFQ System to Serve End Users, But from Architecture Stand point, Hashflow is very Different from the way 0x works, to be more Specific, at lease at the moment, 0x essentially does not have like a pool base Architecture. so, the way 0x swaps work is the end market maker is having funds into the wallets or maybe they have their own smart contract they are using to serve the end Defi Couter party, and most of the trades whether they the sign the quotes, the swaps happen between two wallets. But in case of hashflow, what was Decided to do instead, is take a pool Base approach where the pools serving as an inventory for the market maker, and the reason we do that is because we realized that Defi native Market makers they already have their own smart contract to use as an inventory to trade and serve to rest of Defi but for  many maker makers were just getting into  defi who also happen to have almost the asset under management of more than the entire TVL of Defi and they are fighting out how to defi works, and we liked thinking  serve all for them the smart contract that could be used  to work with hashflow trades also be used as gateway into any defi protocol by parking capital in the pools , it makes for a much efficient deployment of capital and more importantly  it allows  for more interesting thing like crowdsourcing funds from decentralized LPs that they could use to market make. in the nutshell, we think going with pool-based Architecture allows you do far more interesting thing than you could if you had just used a Pure RFQ that does a swap using a proxy between two wallets. And not to mention hashflow gas cost that are nearly 50% cheaper from 0x. another thing is that, 0x is very generalized protocol that intended to be all thing to all Men and hashflow basically because it is such a simple protocol, it Is designed to do one thing, and do one thing very very well, which is onchain RFQ. that’s it. anything else extraneous to that goal can just get ripped out and it allow you to be much gas optimized, also optimized experience for end user more so than 0x can. **How do you see the future of Hashflow? Does it going to overtake uniswap?** Well, actually no, Hashflow is not going to kill uniswap but it has so much potential to be a dominant DEX in the future and compete with uniswap and AMM specially in large and medium trades. Hashflow made a lot of improvements compared to uniswap which you can see in given links below. [A Comerhensive report About Hashflow](https://twitter.com/mehdi_eth/status/1497279224905883648?s=20&t=XWShfWswMQ27F3nEJD4N5w) . **You mentioned about Cross-Chain Swaps, are you going to use wrapped tokens?** No, Cross-Chain Swaps are going to happen between native assets not pegged or wrapped tokens! So, let's say you want to swap your BTC on Bitcoin network with ETH on Ethereum, you use Hashflow to do the swaps, further details about Hashflow Cross-Chain Swaps will be announced soon. **Why Hashflow TVL is Lower Compared to Other AMM DEXs?** Well, TVL is not a solid metrics to decide whether a product is successful or is being used enough by users. What matters here is how the protocol use that locked liquidity to generate revenue, in case of Hashflow since it's very capital efficient and optimized, it can function pretty well even with the low liquidity which currently is Almost 10M$. As we have seen on BSC contests, with 1.5M$ TVL, Hashflow made almost 600M$ trading volume. aside from this, Hashflow pools are permissioned now, and will be publicly available when they passed the security tests. When the flood gates for liquidity, you seen an incredible rise in TVL too. **Can I become a Mark maker and start quoting on Hashflow?** Yeah, everybody can start quoting on Hashflow but if you want to raise capital from decentralized LPs, community must vote for you based on your Reputation, otherwise you have to use your own capital if you want to quote. **Can you talk about permissioned pools?** one of the major issues that institutional market maker is facing in DeFi is that they can't identified the country party, permissioned pools are for those who are looking to KYC their customers and know who the counter party is due to regulatory rules.Hashflow permissioned pools is a good respond for those needs. **What happens if market makers stop offering price quotes?** During black swan events and high volatility, when everyone is trying to sell their assets, if Market makers can't offer quotes, User trades goes through AMMs like uniswap, which they are 100% available and always have something to quote on. **How much is the APY for being an LP in Hashflow pools?** This still is being calculated and will be announce soon. **Which aggregators are indexing Hashflow price quotes?** Currently Hashflow price quotes are indexing in 1inch and Zerion but we have plan to index them on more aggregators as well. For More Information Please Head over to [**Hashflow.com**](https://Hashflow.com) If you have any Question Please reach out through Discord Server : [ Discord - Group Chat That's All Fun & Games ------------------------------------------- Discord is great for playing games and chilling with friends, or even building a worldwide community. Customize your own space to talk, play, and hang out. https://discord.com ![](https://storage.googleapis.com/papyrus_images/fd5daf4cc4569214cd87e650d89285a0aac548020f1d6734eaffa8b0add2160e.png) ](https://discord.gg/HHu5n82B) [![User Avatar](https://storage.googleapis.com/papyrus_images/3630a3834ea629ebdc6873aa3348f92631ab1ce67925a9aec973a5c6e0f02b74.jpg)](https://twitter.com/mehdi_eth) [Mehdi.hl](https://twitter.com/mehdi_eth) [@mehdi\_eth](https://twitter.com/mehdi_eth) [![Twitter Logo](https://paragraph.com/editor/twitter/logo.png)](https://twitter.com/mehdi_eth/status/1497279224905883648) Prepared A complete comparison between AMM model VS Hashflow hybrid approach, + "My Report on Hashflow"![👇](https://abs-0.twimg.com/emoji/v2/72x72/1f447.png) [drive.google.com/file/d/1EMZCki…](https://t.co/mazP76RiWW) ![](https://storage.googleapis.com/papyrus_images/2f436388de8d2efaa93c2d59d402be9d68e12bc66675d1855702ecbc612cfa25.jpg) [![Like Icon](https://paragraph.com/editor/twitter/heart.png) 116](https://twitter.com/mehdi_eth/status/1497279224905883648)[ 12:35 PM • Feb 25, 2022 ](https://twitter.com/mehdi_eth/status/1497279224905883648) --- *Originally published on [ Mehdi](https://paragraph.com/@zkmehdi/hashflow-faq-part-1)*