With the explosive growth of DeFi applications in this bull market, may the future be promising for DeFi in the Polkadot ecosystem?

Zenlink & Acala special session, this interview is with Guo Tao, the head of Zenlink China, and Fuyao, an Acala open contributor.

GUEST|Guo Tao, Head of Zenlink China
Guest|Acala Open Contributor Fuyao
Hosted by: Sanli, Blockchain in Vernacular

Yesterday at 8:00 pm, we held the second session of Poca Greatest Hits: Zenlink & Acala, with guests Guo Tao, the head of Zenlink China, and Fuyao, an open contributor to Acala.

Zenlink is not a parallel chain project, but we wanted to participate in a more suitable way in such a big event as slot auction, and finally developed a product similar to machine gun pool – Zenlink SlotVault, choosing to work with partners to improve the success rate of slot auction and achieve win-win situation in a decentralized way.
— Guo Tao, Head of Zenlink China
The total amount of Acala’s Reward Token Karura (KAR) is fixed at 100 million with no inflation mechanism. In the first year, 17% – 27% of the total amount is prepared to reward parallel chain slot bidding and post-launch liquidity incentive, promising that each KSM participating in Karura bidding will get at least 12 KAR rewards, and indicating that there may be other rewards the earlier they participate.
In order to provide some liquidity as soon as the network goes live, while also ensuring Karura’s sustainability, KAR bidding rewards will be implemented according to a “30% immediate release + 70% linear release” rule.
–Fuyao, Acala Open contributor

The following is the original interview.

01, Project Introduction

Vernacular Blockchain: Welcome to today’s vernacular AMA, first of all, please introduce yourself briefly and talk about Zenlink and Acala respectively.

Guo Tao: Hello, I am Guo Tao from Zenlink. I have been in the blockchain industry for nearly 5 years, and I joined imToken team before September 2017 and stayed for 3 years, witnessed the growth of Ether and always paid attention to the progress of Poka. We are excited about the whole technical development of Substrate, so we didn’t hesitate to join the poka ecosystem.

Zenlink is the first underlying protocol for cross-chain DEX, which helps all parallel chains to share global liquidity while enabling cross-chain exchange, allowing users to securely exchange any asset between different parallel chains. Through this protocol we will build a multi-chain DEX hub under Web3.0 and build the entire DEX network.

This DEX consists of two core components: first is the Zenlink DEX Module, which will be deployed on parallel chains in a plug-and-play manner to achieve “one-click DEX”; second is the XCMP-based cross-chain DEX protocol The second is the XCMP-based cross-chain DEX protocol, which can connect the liquidity of all parallel chains and realize the cross-chain operation function at the same time, and users don’t need to care which parallel chain they are doing DEX exchange.

Therefore, for developers or parallel chains, they can quickly implement the DEX function by integrating Zenlink DEX Module without repeated development; secondly, other DEXs can also be aggregated to Zenlink DEX network by calling the interface and sharing the liquidity.

For users, they can enjoy a network with low miner fees, low latency and low slippage, and users of different parallel chains can complete cross-chain exchange without any perception.

Currently we have delivered three Web3 Grants, and we are also actively cooperating with quality project parties in the polka ecology, and have now established strategic cooperation with including Plasm, Chainlink, Bifrost, Phala, ChainX, Darwin, etc.

Recent progress is mainly in several areas.

Slot auction: We are not a parallel chain project, and we don’t auction slots, but we will launch Zenlink SlotVault, a machine gun pool project that provides a “PLO-as-mining” slot auction service for the polka ecology.

Product level: In order to extend the applicability of Zenlink DEX protocol, we have not only developed the Module-based version, but also completed the WASM and EVM contract versions to facilitate one-click integration and deployment among parallel chains. Moreover, we have completed the development of smart routing after the integration of Zenlink DEX among parallel chains, and will open the corresponding SDKs later.

Community NFT: In order to make NFT better serve the community, we have explored the combination of NFT and community and DAO.

Economic model: The core of the economic model is to create a self-loop system with multiple participants in the network.

Fuyao: Hello, I am Fuyao, Polkawallet and Acala open contributor, and also a member of Polkadot early community, helping Polkadaot China community slowly build up in early 2017, one of Polka KOL, later created according to the market demand to facilitate users to view timely Polkadot KOL, and later created the Polkadot mobile platform to facilitate users to view the status of Polkadot assets, participate in Polkadot on-chain governance, and fill the technical gap of Polkadot operation on mobile.

And after developing Polkawallet, we found it is especially suitable to develop stable coin system based on Substrate, with the property of heterogeneous cross-chain, which can greatly empower DeFi ecology and fundamentally solve the current technical bottleneck of DeFi. Acala is the most important DeFi infrastructure for Poca ecosystem, providing a series of out-of-the-box DeFi components for Poca ecosystem.

Acala is the one-stop DeFi center of Poca ecology, Acala is the financial infrastructure chain of Poca, we are customized and optimized for DeFi, and our goal is to enable Poca to truly become the decentralized Internet of Blockchain Web 3. Acala is the layout of decentralized Internet in finance, so we also start to try and explore continuously.

Recently Acala launched a new concept with Current, a mobile bank in the U.S. – HyFi (Hybrid Finance), Current is also a new starter in the industry that a16z is investing in, with 300w U.S. users. HyFi is a combination of Drive Finance and DeFi.

For example, in the future, users will be able to spend the income generated by DeFi in their daily lives through their bank cards, and users can use their dollar savings for DeFi, and other scenarios where CeFi and DeFi can be combined. We hope that after the launch, we will be able to bring the product of Boca, Decentralized Internet and Acala Interconnection to a wider international financial market.

Immediately after the launch, we will launch multi-asset collateralized lending protocols and stable coins such as Polka Assets and BTC, as well as LDOT, a protocol for releasing liquidity from Staking assets, and core Layer 1 modules such as DEX.

In addition, Acala has added an EVM-compatible smart contract module that allows Solidity developers to enter the Polka ecosystem with minimal migration costs, maximize the liquidity of our aggregation, and advanced Substrate features – custom fees and more – to create a financial product for the international stage.

  1. The Future of the Polka Ecosystem

We see that Acala and Zenlink are both DeFi applications focused on the PoC ecosystem. DeFi has been growing particularly fast recently, especially in this bull market, and the overall volume of DeFi has exploded, especially with the explosion of multiple chains, making the future of DeFi look even more promising. What are the considerations? What do you think are the special advantages of Poca compared to other public chains in the future?

Fuyao: Currently, Substrate is the most advanced blockchain development framework and the underlying framework for Kusama and Poca. DeFi products developed based on Substrate will not only have advantages in cost and performance, but will also have many natural technical features, such as support for seamless on-chain upgrades, which will allow for quick upgrades and maintenance, and if there is a major attack, vulnerabilities can be quickly fixed through governance.

In terms of decentralized financial services, Acala /Karura for example, various other projects can construct more different types of products based on Acala/Karura’s financial protocols.

The DeFi infrastructure developed by Substrate will be a natural moat for financial facilities on Boca, whether by the degree of decentralization, user experience, exchange cost, or asset security, and other attributes, and the perfect governance mechanism will also significantly reduce decision errors and ensure governance self-control.

Kusama Advance Network, as the leading multi-chain Layer 0 base network in the industry, will have more and more parallel chains including Karura Network will be accessed in order to get out-of-the-box security from network verifiers and to preempt the interoperability of cross-linking into Kusama Advance Network, and there will be a wide range of application scenarios.

The Karura Network will be the first choice for users and developers looking for a scalable DeFi platform that can help them build from 0 to 1, without high fees, and with the ability to communicate and deliver value between different chains using cross-chain technology, breaking the silo. The Karura network will be an essential protagonist in the community DeFi scenario, as will the Acala master network for the Polkadot master network.

In order to face the market uncertainty and innovation speed, Karura, as a fellow network of the bold and adventurous Acala, new technology exploration will go live on Karura network first, Karura network users will be the first to access the latest technology in Acala ecosystem, which will also attract more polka eco-developers to develop fast iterative DeFi applications.

Guo Tao: First of all, we were attracted by many advantages of Substrate technology framework, such as modular development idea, strong on-chain governance, forkless on-chain upgrade, natural multi-chain thinking, powerful public chain performance and so on.

Almost all of these technical features coincide with our thinking in developing Zenlink. We have been thinking about how to build a universal DEX protocol and how to make the parallel chains or public chains that use this protocol naturally connected to each other for liquidity, so that users can seamlessly complete the DEX exchange. The direction we are thinking is always.

How to build DEX into a Web 3.0 infrastructure and reduce the duplication of developers’ efforts?

How to better abstract the DEX module to facilitate one-click access?

How to establish a liquidity pool for the whole DEX module through the protocol?

Specifically, our current implementation of Module, EVM, WASM, and other versions of the protocol makes Zenlink Protocol much more applicable, and it will be very suitable as a common cross-chain DEX in the Web3.0 era.

At the protocol level, we are currently developing different implementations of DEX modules that can communicate and share liquidity. We use “virtual liquidity pools” to solve the problem of connecting liquidity for the same exchange on different chains. Currently, Module, EVM, and WASM have all been adapted.

In other words, by integrating Zenlink DEX Protocol, different parallel chains can not only have DEX function in one click, but also exchange DEX between each other at cross-chain level, which is fundamentally different from the DEX in some parallel chains.

One: it can take full advantage of the performance benefits of Polka’s multi-chain architecture. This is because users can perform concurrent DEX operations on several different parallel chains through Zenlink at the same time, and are no longer limited to the performance impact of a single parallel chain.

The combination of DeFi products originates from DEX, but it is just the beginning, the current DeFi products are still far from the general public, one of the ideas to lower the threshold is to build more easy-to-use and useful DeFi products through the combination. But what we want is for different parallel chains to communicate with each other to complete the building blocks of DeFi, which is also a better way to leverage the advantages of Poca’s parallel chain.

So we are positioning the underlying DEX infrastructure to complete the DeFi Lego building blocks by working with different parallel chains! For example, we recently combined with Bifrost SALP to provide the first liquidity derivative mining product for slot auctions. Everyone can participate in the slot auction without sacrificing KSM/DOT liquidity.

03 、DeFi Security

Blockchain in Vernacular: Although DeFi is developing rapidly, there have been numerous hacking incidents recently, especially the BSC ecology which was a big fire some time ago, and many DeFi projects have concentrated on lightning, what do you think about DeFi security? What advice do you have for ordinary users involved in DeFi?

Fuyao: The theft of the BSC chain projects mentioned in this question is mainly due to the fact that many projects are developed directly after Fork and then hastily put on the shelves with simple modifications, thus suffering from a wide range of homologation attacks, so without fully understanding the logic behind the original protocol, they blindly carry out so-called “innovation”, even small updates or parameter changes may become an ATM for hackers.

For ordinary users, it is still very necessary to learn to try to understand the true meaning of the current DeFi protocol from the technical level, and for Acala to consider the security issues from two levels, you can also consider according to this principle.

First, you can see whether there is a credible third-party audit company audit before the project goes live. Take Acala as an example, when the basic development work was completed and not yet online, in addition to multiple self-inspections, we also passed the audits of three well-known security auditors in the industry, including Trail of Bits, SRLabs and Slowmist.

Second, we also designed a certain risk fusion mechanism and also have timely internal monitoring of data. At the business level, we are also working with Gauntlet to design a series of financial data-focused risk control models for Acala and Karura, which will soon go live on the Kusama network, to establish a comprehensive defense mechanism.

Guo Tao: The more security problems DeFi has, the more it reflects its early stage, and only when the industry is just starting out and still building infrastructure can so many security incidents emerge. The development of the Internet is actually similar, who did not install an anti-virus software on their computers and cell phones in the past, but now?

We have to look at the problem in dimensions, the development stage of the industry is only a “natural disaster” on the one hand, there is a more important aspect is “man-made”, many of the project mines are due to technical flaws, lack of security awareness, so ordinary users need to participate when So ordinary users need to be careful when participating.

Security awareness: Security has always been one of the most important aspects of the Zenlink team, and we have security-related assessments and OKR goals every quarter. Since I was on the imToken team in the early years, the importance we attached to wallet security was almost outrageous. So we want security awareness to be in the blood of our team members.

Code security: like Fuyao just said code audit, this is also a very important part. It is also the most basic, we will also cooperate with the industry’s head of security audit company before the official launch of the product. In addition, the team’s internal development process and quality requirements are equally important.

Management of account permissions: This is just in case. Especially with asset-related, inter-protocol calls involved in the management of account permissions.

04, Acala, slot auction progress

The long-awaited parallel chain slot auction has finally gone live. We saw that Acala won the auction during the previous Rococo parallel chain test network slot auction. What are the unique competitive advantages? Also how can ordinary people participate in your slot auction process?

Fuyao: First of all, the first point is the total amount of Karura Token (KAR) we reward, the total amount of KAR is fixed at 100 million, there is no inflation mechanism, many projects will reward users through inflation, from the supply point of view, KAR will have certain advantages over other inflation Token.

Secondly, 60%+ of KAR’s Token distribution is ultimately allocated to the community. In the first year we can allocate 17% – 27% to reward parallel chain slot bidding and post-launch liquidity incentives. We are committed to a minimum of 12 KAR rewards for 1 KSM. And there may be other generous additional rewards for early participation. We are also following the 30% immediate release + 70% linear release rule. This gives people some liquidity to play with right from the start, while ensuring sustainability.

Furthermore, Karura will have a lot of DeFi NFT gimmicks and rewards when it goes live, with multiple liquidity rewards for each product line. For example, KAR/KSM, KSM/kUSD, KSM/USDT, etc. in DEX will have liquidity rewards, in addition to stable coin lending generation, and Staking liquidity mining LKSM will have additional liquidity rewards, these products are also interconnected, there will be multiple rewards.

In addition, we follow the 30% immediate release + 70% linear release rule for reward release. This is beneficial for both users and project development. Because the cost for users to participate in parallel chain auction is the next year’s Staking revenue, while the 30% immediate release is equivalent to giving the future revenue to users directly in advance, and it will not cause too much pressure to the project development.

Although some projects may offer high reward APY or no lock-in reward rules, I think they are only temporary, because the survival of the project is the real value of the reward. Therefore, when users look at parallel chain bidding rewards, they should consider and choose more in the context of project background and future development.

Finally, the preparation on the technical level is also the advantage and highlight of our participation in the parallel chain slot auction. Our Acala team, as one of the most knowledgeable Substrate technical teams, has been involved in testing the relevant code since the Rococo Parallel Chain beta site was launched. Therefore, we are well prepared for the parallel chain slot bidding.

We have prepared a special pledge page for both mobile and web, and there are many ways for ordinary users to participate in it.

05 、Acala, NFT layout

What kind of layout does Acala have in the NFT track? Are there any surprises you can expect?

Fuyao: In terms of NFT, first of all, I would like to say that Kusama officially adopted our NFT Pallet initially, and the NFT module has been integrated by many polka eco-projects for secondary development. Also, Acala has been distributing a limited number of Old Friend NFTs on the platform for long-time users for a long time.

In addition, our NFT also has application properties, not only virtual artwork, but also new ideas and values will be integrated into it, we have recently reached a deep cooperation with NFT on RMRK-Kusama, and we will explore NFT+DeFi scenarios together.

We will also issue new limited exclusive NFTs for those who support our parallel chain slot auction. All the NFTs we issue will be combined with our platform to introduce some novel ways to play and reward, so I believe those who are interested will get something ~

06, Zenlink SlotVault

Blockchain in Vernacular: In order to prepare for the upcoming parallel chain slot auction, we see that Zenlink has created a machine gun-like pool product – Zenlink SlotVault. Please tell us more about this product.

Guo Tao: First of all, let’s talk about our initial idea of developing this DApp. Zenlink is not a parallel chain project, but we want to participate in a big event like slot auction in a way that suits us.

This is why we developed this product, Zenlink SlotVault, which is similar to a machine gun pool, and is an open and collaborative way to help the entire ecosystem. The product will allow users to choose their own allocation of funds to participate in the Crowdloan of each parallel chain project based on the revenue, so as to obtain multiple Token revenue provided by the Crowdloan sponsor and its supporting projects, encourage more users to participate in the Crowdloan of parallel chain projects, and increase the success rate of parallel chain project bidding slots.

The more projects choose to be the backer of a parallel chain project and provide Token incentive, the higher the expected Token revenue users can get for voting for that parallel chain project. However, it is still necessary to make a reasonable choice when investing in a project with sufficient research.

Moreover, through the integration with Bifrost’s SALP, users can go to a centralized slot auction without losing KSM/DOT liquidity, which is also a recommended way to participate.

Blockchain in Vernacular: What is the current progress of Zenlink SlotVault? How can ordinary people use this product?

Guo Tao: Zenlink SlotVault has been developed and will go live as soon as the Kusama crowdfunding module opens. The first batch of projects include: Bifrost, ChainX, Plasm, Crust, Phala, Darwinia, Litentry, Clover, etc.

We are currently negotiating the second batch of projects, including Acala, Moonbeam, Equillibrum, Manta, etc., which will be announced later. All these slots will be deployed to Zenlink SlotVault when they are officially launched.

Of course, there are a few points to remind users who participate in parallel chain slot auctions on Zenlink SlotVault or other channels.

Security issues. The channel or platform you choose is safe and reliable. Don’t be cheated by some phishing websites or other, this is the most important.

Screening project quality.

Make sure that the project you are participating in is fully understood and approved.

This requires you to do some full project research, whether the eggs are put in a basket or spread the risk, please make your own reasonable judgment.

The question of revenue.

At present, the slot auction can at least get the Token incentive of the corresponding parallel chain, and if you go through Zenlink SlotVault, you can also get Zenlink’s native ZLK incentive and the incentive of supporting parallel chain projects, etc. Therefore, we strongly recommend you to participate in Zenlink SlotVault DApp!

Keep the address of your participation safe.

This is a very important and easy to ignore point, many people usually tend to create a lot of wallet address, and finally may forget which address participated in the auction, because all the Token is ultimately issued with the address of the participant, so this must be saved well, do not be a basket of water empty.

07, Marketplace cooperation

The development of DeFi in the industry seems to be more in the air, most of them are not based on native digital assets, and there is not much actual cooperation with traditional banks and traditional assets on the ground, can you share the details of this cooperation with us?

Fuyao: The simple answer is that Current will directly integrate Acala’s out-of-the-box DeFi products into its core products to bridge its proprietary core banking platform with its decentralized open platform, thus forming a transparent, fair and complete financial services loop.

In terms of product implementation, Acala and Current are currently developing a “Yield Engine” that combines traditional finance with DeFi, the first application to be launched is the “Yield Factory”, which means that users can use their bank card savings in US dollars directly to DeFi products in Acala’s platform to enjoy the dividends of DeFi.

As the host said, this is the first cooperation between traditional finance and DeFi in real sense. I believe this cooperation between Acala and Current will become the “gas pedal” of HyFi (Hybrid Finance) service infrastructure, which will not only help the nearly 3 million members on Current platform capture more value, but also enable DeFi world to obtain richer asset types and volume, and promote DeFi to truly enter the world of financial traditional finance.

08, Zenlink Parallel Chain Slot Auction

In this parallel chain slot auction, Zenlink will not directly participate in the slot auction, but will cooperate with major ecological projects to help them conduct parallel chain slot auctions.

Guo Tao: Slot auction means the beginning of the product launch of Poca’s eco-projects. It’s a big event for the eco-projects, Boca officials and the Boca community, so it’s worth waiting for!

For the project side: It is definitely a milestone that each project can share the security of the main network of Boca by accessing the parallel chain, and the product can be officially launched and interact with the whole Boca ecological projects.

Projects that can win the slot will gain certain first-mover advantage or community attention, which is also crucial to the development of the project itself, but head slot or not, I also hope that we can be objective and keep calm at all times, long-lasting love is the best company.

To the community users: I think that the slot auction should be considered the first DeFi product of Poca, and it is the most native Poca application. Everyone’s DOT/KSM can finally leave the platform or wallet to participate in the mining craze inside.

Wipe your eyes to participate, claiming that there are many projects in the boca ecology, this time to be vigilant, basically the project that can actively participate in it is still worth to go deeper to understand it.

09 , future development

Blockchain in Vernacular: Acala and Zenlink are both important members of Boca Ecology, what are your new layout and plans for the future development of the projects?

Fuyao: Regarding Acala’s next layout and plans, the first one is the parallel chain slot auction. Whether it’s Karura or Acala, we will do our best to get the first parallel chain slot to achieve the purpose of launch, and also bring the real DeFi products and services to Kusama and the boca ecosystem.

Secondly, when we go live, we will focus on the network’s TVL and DEX daily volume and other data. We will not only bring a perfect DeFi experience to Kusama and Boka eco-users, but also launch a series of liquidity incentive programs. As I mentioned earlier, at the beginning of the network launch, there will be liquidity incentives for users to participate in stable coin lending to provide liquidity for DEX and LKSM/LDOT minting.

After the TVL and other related data of our network have been steadily deposited, we will focus on attracting some DeFi projects and developers to develop more innovative DeFi products based on Acala&Karura’s smart contract module to enhance user experience and improve asset utilization, etc. I believe there will be many quality DeFi projects in the Acala & Karura ecosystem in the future.

Last but not least, this week we opened the recruitment for Acala China ambassadors, if you are interested in becoming an Acala ambassador, please click on the link below to see the details.

Guo Tao: I would like to talk about this question briefly in two aspects: short-term plan and long-term layout.

Short-term plan: product launch

Sharpening our product, making parallel links more friendly and lowering the threshold for ordinary users.

Develop the launch strategy, which parallel chains will be launched in which way, by the way, for the parallel chains integrated with Zenlink DEX module, we will have various Token incentives, and the economic model will be announced soon.

Product launch plan and community building

Long-term layout.

The layout of multiple chains outside the polka ecology, not like some DEX now in different chains in isolation to deploy multiple sets of products

DEX combinatorial exploration, how to make DEX closer to real-world financial products, this piece we will make full use of the combinability of Boca to build DEX products in different scenarios. To improve the efficiency of capital utilization and fully reduce the threshold of users.

NFT exploration, for example, we are currently exploring NFT and DAO and community proof of workload, NFT is naturally unique and can be easily associated with identity attributes, so we have explored accordingly.

The NFT can not only represent a project’s community attributes, but also participate in the governance of the project through your proof of workload to obtain the corresponding financial incentives to complete the DAO operation.

10, Community Q&A

With the explosive growth of DeFi applications in this bull market, may the future be promising for DeFi in the Polkadot ecosystem?
  1. karura/acala Does the chain still flow properly if it exits from the slot? What does it rely on to run? Who will secure the parallel chain? Fuyao : About 1 month before the lease period of the slot is about to end, there will be early bidding for the next cycle of the slot. The lease can be renewed seamlessly. Also in the face of extreme conditions, parallel threads, a shared slot, can be seamlessly converted.

2、Zenlink is the first DEX project on Poca Parallel Chain, what is the advantage of DEX compared with other public chains?

Guo Tao: Yes, I also mentioned above the difference between our DEX underlying protocol and single parallel chain or single chain DEX: 1.

  1. uni/pancake is a single-chain Swap, while we position the DEX protocol, all starting point is to consider multiple chains and solve the deep isolation between different chains in a modular way; 2.
  2. the underlying platform is different, uni/pancake is essentially based on EVM, which is the architecture of Ether, while Zenlink is based on the substrate architecture of Polka, which should be far superior to Ether not only in performance but also in architecture, even in the face of the future ETH2.0.

The development direction is different, uni is mainly through the underlying algorithm to solve the efficiency of capital utilization, while Zenlink will develop more use cases of DEX around real business in the future, and modularize these businesses to lower the threshold, so that more people can use and leave DEX, just like a classic saying from the community recently, “The so-called value As the community recently said, “the user traffic of the so-called value coin is not as high as a dog”, which fully illustrates that the threshold of DEX or DeFi at this stage is quite high not only in terms of perception and experience, but also shows that the market of DeFi has just started.

3、What is the current stage of Acala’s product development and what products can users experience first?

Fuyao: Since the beginning of 2020, it has been fully functional and has been iterated for 6 versions. We have also tested several parallel chain versions on rococo. Now you can experience it in apps.

4、Can Zenlink provide an interface that can be viewed as a centralized platform in the future? It seems that the weekly report also mentions smart routing, can Guo introduce it to us?

Guo Tao: The trend line chart of the transaction pair has been developed, and you can look forward to the professional K-line. Anyway, we will have high requirements on the product experience.

The smart routing is mainly to solve the problem of cross-chain exchange of multiple chains, which has been developed and is being abstracted into SDK for other parallel chains. This piece will also be used in the subsequent DEX aggregation.

Posted by:CoinYuppie,Reprinted with attribution to:https://coinyuppie.com/with-the-explosive-growth-of-defi-applications-in-this-bull-market-may-the-future-be-promising-for-defi-in-the-polkadot-ecosystem/
Coinyuppie is an open information publishing platform, all information provided is not related to the views and positions of coinyuppie, and does not constitute any investment and financial advice. Users are expected to carefully screen and prevent risks.

Like (0)
Donate Buy me a coffee Buy me a coffee
Previous 2021-06-05 00:38
Next 2021-06-05 01:20

Related articles