区块链安卓开发,android 区块链

近年来，区块链技术的发展步伐越来越快，其在金融、医疗、政府等领域的应用也越来越广泛。而安卓开发者也可以利用区块链技术，开发出各种有趣的应用。

首先，安卓开发者可以利用区块链技术开发去中心化的应用，这类应用可以极大地提高用户的安全性。例如，开发者可以利用区块链技术开发一款去中心化的支付应用，可以更有效地保护用户的隐私数据。

此外，安卓开发者还可以利用区块链技术开发智能合约应用。智能合约是一种基于区块链技术的自动执行的合约，它可以帮助开发者更好地管理用户的数据和资产。比如，开发者可以利用智能合约开发一款游戏应用，让用户之间的交易更加安全有效。

此外，安卓开发者还可以利用区块链技术开发去中心化的交易所应用，这类应用可以帮助用户更安全地进行数字货币交易。例如，开发者可以利用区块链技术开发一款去中心化的交易所应用，可以更有效地保护用户的资产安全。

总之，安卓开发者可以利用区块链技术开发出各种有趣的应用，可以更好地保护用户的数据安全和资产安全。因此，安卓开发者应该积极探索区块链技术，开发出更多更好的应用，为用户提供更安全、更可靠的服务。

请查看相关英文文档

❶ How to introduce blockchain in 3 minutes in a simple and easy-to-understand manner, and what its commercial value will be in the future

There is a real joke, an engineer from Ant Financial, He wrote a blind date resume, and the job description in it was "code farmer", but no one clicked it for a long time. Later, he changed his work experience to "blockchain" and received 381 love letters at once.

From workers in high-tech industries to square dancing aunties, it seems that everyone is participating in the blockchain carnival. So what exactly is the seemingly mysterious blockchain? After reading the following content, you will have completed the journey from beginner to beginner.

1. What is blockchain?

To put it bluntly, the blockchain is "everyone keeps accounts together." Any database needs a big housekeeper to be responsible for "accounting" (maintaining the system and entering data). But after using blockchain technology, the concept of this "central steward" disappears, and each of us can participate in accounting. So the question is, whose record will ultimately prevail? Of course, it is the person who completes the work well and quickly. A system that strictly adheres to fairness will select this person based on the algorithm, write the contents recorded by him into the ledger, and send the contents of the ledger during this period to everyone in the system. of others to make backups.

2. What is so powerful about blockchain technology?

Any new thing must have unique advantages if it wants to develop rapidly, and the same is true for blockchain technology. First of all, blockchain technology ensures the security of the system. In the absence of a central steward, everyone is a defender of the home, which means that destroying some nodes has no impact on the system at all. Second, the recording process cannot be cheated. Everyone in the blockchain system has the same ledger, and the entire process is open and transparent. The system will determine the final result based on the opinions of the majority. It is difficult for an individual to hack into so many computers at the same time, and it is meaningless to just modify one's own results. Who would do such a thankless task? Third, and most importantly, the blockchain completely abandons the existence of "credit intermediaries". Credit intermediaries are the platforms we must pass through when transferring money, such as traditional banks. Now any two strangers can directly complete mutual trust transfers, and the efficiency has been improved not only a little!

3. What is the use of blockchain technology? ?

As mentioned earlier, the main advantages of blockchain are that it does not require the participation of intermediaries, the process is efficient and transparent, the cost is very low, and the data is highly secure. That is to say, any industry that has needs in these three aspects can use blockchain technology. Here are a few examples:

In the banking industry, the use of blockchain technology is equivalent to updating a digital, secure and tamper-proof General ledger books. In fact, Swiss bank UBS and Barclays Bank in the UK have already begun experiments, hoping to use it as a way to accelerate back-end system functions and clearing and settlement capabilities. Some institutions in the banking industry claim that blockchain may reduce middleman costs by 20 billion.

In terms of car rental, blockchain also has great potential. A future customer selects the car they want to lease, entering it into the blockchain's public ledger; then, sitting in the driver's seat, the customer signs the lease agreement and insurance policy, while the blockchain updates the information simultaneously. This is a foreseeable future for car sales and car registrations.

In terms of medical and health care, blockchain technology allows hospitals, patients and all parties in the medical benefit chain to share data in the blockchain network, and Don’t worry about data security and integrity. This means more accurate diagnosis, more effective treatment, and an improvement in the health system’s overall ability to deliver cost-effective care.

Blockchain is not cold-blooded. It has been implemented in applications that are closely related to our lives. For example, the application of Ant blockchain ranges from public welfare, to mutual insurance, to traceability of product authenticity, to traceability of rental housing.

In 2018, blockchain will "return to the world."

Blockchain, do you really understand it? Since it says three minutes, let’s give a simple answer.

1. What is blockchain;

2. What are the benefits of blockchain;

3. What are the uses of blockchain;

4. Blockchain technology and existing problems;

Let’s first look at the first question: What is blockchain

Let’s look at it literally. Blockchain is called Blockchain in English. This is a very good word. The English name is well chosen and the Chinese translation is also very beautiful.

1. What is a "block"?

You can think of it as a record, or anything, which forms such a record during the production stage. This thing can be any physical or virtual object in the Internet of Everything.

For example, if you generate a Bitcoin, which is a thing, it actually corresponds to a block. This block is a record of what it is.

When you produce a bottle of medicine in the future, a block is actually generated when this bottle of medicine is produced. When it leaves the factory, it needs to be recorded once, and this corresponds to it one-to-one.

This is the first dimension.

To make it easier to understand, for example, each of us is born with a unique identifier, which is our DNA. All species in the world have different DNA. Every individual's DNA is different.

Your parents can name you Zhang San, Li Si, Wang Wu. These names can be repeated, just like a bottle of medicine, whether it is aspirin or penicillin, these can also be repeated. Famous. However, human DNA is different. Even if you have identical brothers and sisters, your DNA is different, so this is your unique identifier. And once your DNA is formed, it cannot be changed. This is a benefit of the blockchain.

2. What is "chain"? The chain is actually a process. You can think of it as a transaction process. After this bottle of medicine leaves the factory, it enters the warehouse from the workshop and passes through a certain door, and it will record the process.

Of course, this requires automatic computer recording, and the cost of human recording is too high. Then, packing is a process, and transportation to the cargo transfer station is another process. Then it is loaded into a car and transported to the wholesale station, which is the next process.

Every step of the process is recorded. It is a process to go from the wholesale station to the store, it is another process for the people in the store to receive this batch of medicines and put them on the shelves, and it is still a process for you to buy them. Finally, when the whole process is connected, you will have a way to track the entire process of this bottle of medicine and know its authenticity, because once this bottle of medicine is produced, it will be bound to the blockchain, as well as to people and people. The same is true for DNA binding, which cannot be changed, but it can be seen and tested.

The doctor can also determine whether this person is you by testing DNA. So in terms of nature, if we virtualize it, it is actually a smart contract. You have signed a sales relationship with one of your customers. Once this happens, it cannot be changed. Then everyone can only execute it. This execution process is the same as the tracking of drugs I just talked about.

Second question: What are the benefits of blockchain?

1. Mathematically speaking, it is very beautiful. It changes from the past that you had to own something before you could know its properties to that you don’t own it, but you can ask questions Learned many details about it.

Mathematically speaking, this is a perfect asymmetric situation. You can tell whether it's true or false, but you can't change it.

2. Theoretically speaking, blockchain is veryIt is safe. For example, if you are involved in the process of a bottle of medicine, others cannot see this information. That is to say, if you buy this bottle of medicine, you can know where it comes from, but others cannot. knew.

For the same reason, for example, if we sign a contract, others can verify the contract. If you go to a bank for a loan, he can ask you the amount.

However, he cannot obtain this contract, and he cannot steal this contract from your computer.

Blockchain also has some interesting properties. For example, a block chain can be divided into two at will, or several can be combined into one, etc.

3. Blockchain is transparent, which means that everyone abides by this algorithm and there is no special agreement in private. So, if you believe in this algorithm, it means you believe in me and believe that I didn't do anything fishy. I will not secretly do anything in the contract to make you suffer losses.

This is a beautiful place theoretically and mathematically.

In the third block, let’s take a look at the uses of blockchain

1. Bitcoin is a cryptocurrency, and the Ethereum currency that everyone uses now is also a cryptocurrency. Of course, you can make another one based on it, either Zhang three coins or Li four coins. As for whether it can replace the currency of the future, this is doubtful.

2. Financing, we used to divide financing into three stages: the first stage is to get a loan from the bank. If you want to open a restaurant, you need to mortgage something. The second stage is that you issue some stocks and I sell 10% of the stocks, so that I can obtain part of the funds.

The third stage is actually crowdfunding. For example, if I want to write a book, it may cost 50,000 yuan for the publishing house to publish it. If any of you can give me 50 yuan at the beginning, I will use it in the future. Once the book is written, give everyone a copy. You will get the book, and of course I will publish it. But there is a problem. For example, I sell this book for 100 yuan and you get it for 50 yuan. What if my book sells very well, assuming I sell 100,000 copies, but you don’t seem to benefit from me? what to do?

Is there a fairer way to measure everyone's contribution? One way is to issue a cryptocurrency (ICO). When the business we do becomes bigger in the future, you can benefit from it.

3. Smart contract, for example, sign a contract. In the future, the smart contract can become like this. All the nodes in the middle are determined when the contract is signed, such as building or decorating a house for you. , your payment must be given to me at any stage of the decoration. If you accept it, no problem, the payment will be automatically given to me.

You can even sign with my supplier, which means that as soon as my money arrives in my account, I will give it to my supplier immediately. This will save a lot in the futureThe issue of triangular debt includes the issue of arrears to migrant workers.

Blockchain can also be used for property registration, car registration, etc. Of course, another great use is gambling. In fact, gambling is the most willing to adopt new technologies because it is closely related to money.

After talking about the benefits of blockchain, let’s take a look at the technology and existing problems of blockchain.

Today’s blockchain is basically the second generation and the first generation. It is the Bitcoin generation. It has many problems. It is not a platform, but is actually a specific application.

The second generation is represented by Ethereum. It is a platform on which you can issue your own coins, and it removes the concept of mining machines, so its transaction costs will be much lower. . The reason why ICOs are everywhere today is because with Ethereum, you can issue coins. Unlike in the past with Bitcoin, you had to completely copy its formula and copy it again. Today you are on Ethereum. , it is easy to issue your own currency, just like you can easily make your App on the Android operating system today.

There are three problems with Bitcoin transactions

1. The transaction delay is very long. I have asked people who specialize in Bitcoin transactions and the delivery time ranges from two hours to two hours. Days wait, so it is very inconvenient for you to use it to launder money. After the RMB is converted into US dollars, it may fall by 20% in two days, and you will lose 20% of your money.

2. It cannot be distributed. Like Bitcoin, a few people in the early days took away a lot of its shares, so how to distribute it in the future is also a problem. No one understands it clearly, so it is difficult to use it as a currency. a currency. Because if it really becomes a currency that everyone uses, it will be equivalent to the first few people taking away a large part of the world's property.

3. Transaction costs are high. For example, a cup of coffee at Starbucks in the United States costs $2.50 on average. You usually pay money at the counter, and the transaction time is only one minute. If you want to use Bitcoin, you have to wait two hours before you can get your coffee, and the transaction costs are extremely high, the electricity bill alone is $20. In other words, if you pay $2.50 for coffee, the transaction cost of electricity is $20, so this is unrealistic.

Blockchain has high risks. This risk is not only a technical risk, but also a policy risk. In fact, this is also an opportunity. Whoever solves this problem will get the opportunity. Its transaction costs are also very high, so whoever can develop new underlying technologies and reduce this transaction cost will make a lot of profits in the future.

Some people say it is the next generation of the Internet. I don’t agree with this, but it will definitely be a supplement to the Internet. Some people say whether it can subvert the central bank, but this is not certain, because there is no reason why the central bank or these big banks cannot do this themselves, so those who expect it to subvert the central bank may be too happy too early.

Perhaps in the end it was these large financial institutions in the past that used the blockchain to update themselves.

Talk in the vernacular and get useful information!

Literally, blockchain is blocks and chains, and some relationship between them. It is essentially a distributed accounting method and a network database system that cannot be tampered with.

The current development directions include digital currency, payment, smart contracts, defi finance, web3 and so on. It is still in the initial stage of development and is a back-end technology. Most projects are still speculating and financing.

Today's Afghanistan may be the best proof of the value of Bitcoin, and there is no problem with value storage

Blockchain is not just a technology, it is a way of trust transfer, value The way it is delivered may have huge potential in the future.

Keywords: block, chain, database, ledger, Afghanistan, currency speculation, value, technology, market

First, what is a blockchain? Blocks and chains are an accounting method and a form of network data storage.

Literally speaking, blockchain refers to blocks and chains. This block actually records the transaction records of the entire network, or the execution process result data of smart contracts, etc.

Every once in a while, the entire network will produce a block. This block records all transfer data, and the blocks need to be connected by some kind of "chain".

This chain is an encryption algorithm. Some information of the previous block is used to calculate and obtain some information of the next block. They are linked together. The latter block can trace back the previous block and needs to be modified. The next block must modify the previous block, all the way to the first block. Regarding the details of these issues, I have written many articles before. If you are interested, you can go back and take a look.

Blockchain is actually an accounting method, or a database storage method. Please pay attention to what I say below. The whole process is the operating mechanism of blockchain.

Each node in the entire network has the same status and runs the same program. This program is used to collect, encapsulate and package all transaction record data records that occurred in the entire network within a period of time. Then broadcast it to the entire network

Let’s take Bitcoin as an example. Once this packaging and encapsulation is completed, you can obtain the right to produce the block. A certain amount of Bitcoin can be issued every time a block is produced. Since the nodes in the entire network run the same program, there is no center to control everyone. Therefore, the currency issued is irrevocable and cannot be changed.

How to decide who has the right to make a block? This requires the use of the so-called consensus mechanism, which is to establish a rule and use who produces the block as the benchmark to solve the problem of network consistency. The mainstream consensus mechanisms include POW mechanism and POS mechanism. Proof of work and proofof stake. Proof of work, who has done more work, and proof of equity, who has staked more assets

Pow means that everyone calculates a difficult mathematical problem together, and whoever calculates it will win. Has the right to produce blocks. Pos means that everyone takes out their family assets as mortgage, and whoever mortgages more. It is possible to be selected as a block producing node.

The essence of this approach is that you have to pay a certain price and receive a certificate of investment, which essentially builds a kind of trust.

When all these tasks are completed, a block can be produced, and the block will be connected to the previous block one by one. This is the entire block sequence. Note that the entire blockchain world will produce many blocks, connected to one chain after another, but everyone only recognizes the longest chain, and short chains will be discarded.

To put it simply, each network node uses a program to package transactions within a period of time, and then connects the transaction blocks one after another and saves them in each node, but an encryption algorithm will be used in the process. Ensure that node information is not leaked, ensure that user information is encrypted, and ensure that the information in the block is not hacked or tampered with

Second, the block The current development of the chain, various projects and significance, at this stage are more about currency speculation, and there is no problem with value storage.

Blockchain has been developing for twelve or three years since the Bitcoin white paper in 2008. It has also experienced various evolutions and developments.

For example, now it has gone from being able to issue currency in a distributed way to now having huge functional expansion. The landmark event is the birth of the Ethereum smart contract.

I have explained many times that a smart contract is an automated contract signed by two or three parties. It will be automatically executed as long as the conditions are met. It is essentially a program with infinite possibilities and the judge in the blockchain world. Various functions can be input into the program, and the program exists. Blockchain has become rich and colorful.

Current blockchain applications mainly include the following aspects: smart contracts, payments, cross-chain assets, oracles, defi, web3 storage, etc. I will briefly mention two. Let’s take an example and talk about its commercial application.

For example, defi applications are quite popular on Ethereum now. Defi is decentralized finance. Abbreviation for decentralized finance.

What does it probably mean? It is to move all financial-related businesses in real life, such as mortgages, insurances, and loans, onto the blockchain.

This field is very popular now, and the reason is simple. It is very suitable for blockchain. As I said, a smart contract on the blockchain is a contract. If the contract conditions are met, execution can be automatically triggered.

In the past you might have gone to the bankApplying for a loan can be very troublesome, requiring various signatures and various verifications, and the bank may not be open on weekends and nights

The blockchain network operates 24 hours a day. If you want to run various assets on it and do various mortgage transactions, you only need to click and there is a software terminal.

Of course, the real assets will be frozen in the process and mapped to virtual assets. After the transaction is completed, they will be exchanged for real assets. Cross-chain technology and oracle technology may also be used in this process, which I have written in detail in other articles.

It roughly means cutting off banks through decentralization, and direct point-to-point transactions. The security of transactions is guaranteed by blockchain technology, code and cryptography.

There is also the current web3 storage class. For example, the leading project fil. His vision is to take out all the scattered hard drives. Break all the data and information that need to be stored on the network into small pieces

and then distribute them to the entire network. When we want to use network data in the future, we no longer need large network database or server. In this way, Internet giants cannot charge high service fees. There is no way to maintain a monopoly.

If you want to obtain stored information, just take a taxi online like dd. You pay for a taxi, so that information on the Internet can flow freely. Costs will drop significantly.

Of course, these visions are grand and huge, and the current blockchain development is still in its early stages. There are still some technical difficulties to be overcome and some underlying systems to be established, but there is no problem in this direction.

The original digital asset projects like Bitcoin have now been proven to be very safe. Just like this situation in Afghanistan, the first thing that comes to my mind is Bitcoin. He is the first violent and unplunderable asset.

Your house may be occupied and blown up, and your gold may be robbed. And if you have Bitcoin, it's much easier. He can't snatch this thing away, because the mnemonic phrase and private key are in your mind, and he doesn't even know whether you have this thing in your mind. If you want to pass it on to your child, just ask him to memorize the key and mnemonic phrase.

It is precisely because we are now in a stage of financing and bubbles that all the news you see on the Internet is still speculation.

Also, this thing is a back-end technology. For example, Guangdong Province already has blockchain invoices. For example, there are already some blockchain apps for judicial certification, but for the front-end For you, you can't feel it. There is an extra string of hash codes on the invoice, can you tell the difference?

This is why when it comes to blockchain now, everyone is speculating on coins, but in fact it has certain applications and future technical logic.

Third, it is essentially a mechanism of trust.Exploration of value transfer methods and social governance methods.

What is the essential value of blockchain? The most important thing is that it is a way of credit transfer. Because there is enough credit, real-life assets and property values ​​can be spread on the Internet in the form of information codes.

Mainly in these aspects.

First, before Bitcoin, people did not know how to protect a piece of information, because information on the Internet can actually be copied. Bitcoin solves the problem of uniqueness of information assets. With scarcity, there is value in transactions and storage.

The second is decentralization and disintermediation. We used to do everything. All require some kind of intermediary. For example, when you borrow money, a bank acts as an intermediary, and when you buy a house, various institutions and real estate agencies act as intermediaries.

You cannot buy or sell directly. Because you don't have enough credit. We usually come to find a third party, but the third party is usually made up of people and may also do evil.

For example, the master who could whip five lightning whips a while ago. If he calls you all kinds of names at the beginning, you may be frightened. You won't know he is a liar until he is punched and lying straight there. This is human credit, which is unreliable

Blockchain ensures credit through code, cryptography, and consensus mechanisms. We no longer need a powerful third party. Note that this third party will often become a monopoly boss.

The third is to reduce the cost of coordination, communication and entry barriers.

If we want to become richer, we need to trade in the market. And transactions require coordination and division of labor. Essentially, the companies and organizations we work for are intermediaries.

You have to integrate your resources through this kind of intermediary, transform your labor force, your brainpower, and your ingenuity into final products and sell them on the market.

The smart contract technology of blockchain technology can break up these contracts in a decentralized manner. People in the market can combine freely to establish a new type of organization that is completely transparent and cannot tamper with the rules, which is a blockchain autonomous organization. The future of this kind of organization may be more promising than that of ordinary joint-stock companies.

You can join or quit an organization at will, and the trust between you and others has been resolved. You can cooperate with others and sign smart contracts to complete joint collaboration and complete a certain product. We no longer have to worry about some big capitalist taking advantage of everyone and getting the bulk of the profits.

So the Bitcoin blockchain is essentially a big social experiment, through the consensus mechanism, the decentralized decision-making method, and the distributed signing of smart contracts. Gradually and completely change the original appearance of our society. Restore the original nature of the market economy, point-to-point, direct communication between peopleThe ideal of ease.

To summarize. Blockchain is a block of information connected together through an encryption algorithm. It is essentially an accounting method and a network data structure

Through decentralization, you can do finance, storage, and decentralize many things, but now it is still very In the initial stage, most projects are still in the stage of speculation, financing and concept development.

The value storage capability of the blockchain has been proven to be problem-free, very safe, and cannot be plundered by violence.

The essence of blockchain solves the problem of credit intermediary, and at the same time can reduce the cost for people to work together, lower the threshold for enterprise entry, improve social efficiency, make social transactions larger, and allow We are richer.

I recommend the book linked below, it is easy to understand. Like You Pump tells the history of the birth of blockchain, the underlying technical logic of blockchain, and some mainstream projects. Learn some knowledge about blockchain, feel more at ease, and no longer worry about whether it is a scam.

❷ How to develop blockchain mobile wallet app software

Rely on third-party platforms

Clear your own needs and understand the code , familiar with the development process

Complete APP development process

Early stage of APP development

Developing mobile APP requires understanding of product positioning

Determine the requirements for developing APP Need to position the APP. To develop and produce an APP software, you need to first understand the needs of the Bizhenlan App application market. This is a hard standard

Evaluation

Try to be as detailed as possible about the overall situation of the project , evaluate whether the APP development project can be completed within the specified time limit, and evaluate whether the required functions can be realized. This is a crucial point for whether a mobile APP can ultimately survive under the strategic direction of the enterprise. During the APP development process

Determine the prototype of the APP

Including user experience design (UX), the interaction logic of the APP interface, and the general status of the implementation of the APP function points

< p>Unique UI design

Have a clear positioning of the APP and build an APP prototype. Start UI design and design the user interface. The user interface is where APP users interact with your APP. It should be simple and beautiful. , the principle of convenience can bring a higher experience to users. A complete APP needs an idea that attracts users' attention, which requires developers to have unique insights in creative planning

Excellent sample display

The display effect of high-quality samples is In order to allow enterprises to visually see the prototype of an APP, this also saves a lot of time and energy in later code development.

Native code development

After UI design and sample presentation, officially enter the APPThe development phase of the code. At this stage, all early display effects are realized and developed natively through the APP code.

Deeply study what you don’t understand about APP development

The technology of APP development and customization is constantly being renovated and developed. APP developers will often encounter new problems during the development process. The functional requirements for APP development must not only be integrated with the existing functional system, but also make the newly developed APP functions unique.

Understand the system compatibility of the APP

When developing mobile APPs, you must know that the styles, layouts and navigation of Android and iOS are very different, which requires matching every aspect of creating an APP project. operating system to satisfy users. At the same time, for Apple apps, it requires applications designed and developed specifically for the operating system.

Developing mobile APPs requires continuous testing

Customized APPs require continuous optimization and testing, instead of getting the results after one or two APP production tests, directly putting the undeveloped and perfect The launch of APP software is irresponsible to the company and to users.

After the APP development is completed

Product testing is launched

After the code development is completed, it enters the stage of testing and later launch. This is a gradual process. After all bug testing is completed and it is confirmed that there are no bugs, it can be launched on the Apple market and Android market.

Project delivery is completed

After the APP development and testing is online, the source code, documentation, and operation documents will be delivered to Party A in accordance with the provisions of the contract.

Online operation and promotion

After a successful launch, the APP can develop the number of users through the company's own operation and promotion, making it stand out in the industry. Of course, if there are bugs later, or updates can provide follow-up services. Only by constantly advancing with the times in operation and promotion, and maintaining and updating can the APP survive forever.

❸ What is the current market price of BTT currency? What software can trade BTT currency?

Where to trade BTT currency, where to check the price of BTT currency, as of March 2022 At 3:45 pm on the 9th, the price of BTT coin was 0.01026 yuan, the highest price in history was 0.01433 US dollars, and the lowest price was 0.00014 Miiwa Takamoto. Many people want to know where this coin can be traded. Follow below Let’s take a look together. I hope this article can be helpful to you.
1.SLP Coin Wallet
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ALPHA Coin Wallet app download provides investors with professional digital currency asset management services and has the world's top financial risk control operation team to bring you an extremely safe trading environment. The mnemonics for the ALPHA coin wallet blockchain transaction software are all held by the user, so transactions can be conducted with confidence. If you are interested, download the ALPHA coin wallet!
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3.OP Coin Wallet
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4. OKT wallet
OKT wallet app download, with a professional and reliable risk control operation team, supports instant deposit of thousands of mainstream digital currencies Get transactions without any handling fees, extremely fast currency transactions. The OKT wallet blockchain trading software also has multiple encryption systems to fully protect users’ financial security. If you are interested, download the OKT wallet!
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5.ROSE Wallet
ROSE Wallet app download, OasisNetwork is a digital currency built on the Cosmos ecosystem, which is safe and reliable. ROSE wallet virtual asset trading platform allows you to easily check the prices of major currencies on your mobile phone at any time. Friends who are interested should come to ROSE wallet now to have a look!
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6.Btok Android version
Btokapp Android version download provides the most comprehensive blockchain market information content for global digital currency investors to understand The real-time market prices of various virtual currencies rise and fall, and you can receive digital currency red envelopes for free. The Btok Android version of the virtual currency market software can also chat securely with other investors and has powerful blockchain encryption technology. Come download the Btok Android version and give it a try!
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7.AE coin wallet
AE coin wallet app download, has the world's leading digital asset management and control technology, supports hundreds of mainstream digital currencies Secure transaction deposits and withdrawals without any handling fees, making cross-chain exchanges more convenient. AE Coin Wallet's secure currency trading software also has a dedicated decentralized trading environment, and you can feel more confident by holding your own keys. If you are interested, download the AE coin wallet!
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8.MAN coin wallet
MAN coin wallet app download, creating a more secure digital currency storage and transaction environment for global currency investors, supporting A large number of mainstream digital tokens including BTC, ETH, and MANInstant cross-chain exchange. MAN coin wallet virtual asset management software has an exclusive asset cold wallet, and the assets do not touch the Internet. If you are interested, download the MAN coin wallet!
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❹ Zihang talks about currency: A novice in the currency circle doesn’t even know what “blockchain” is

First of all, I believe everyone must have heard of Bitcoin before learning about blockchain, right? Because we all know that the first people to hold Bitcoin made money!

But one point of view is wrong: What point of view? Many people believe that Bitcoin is the blockchain. In fact, Bitcoin is just a type of blockchain asset, and it is the earliest blockchain asset. The concept of blockchain comes from Bitcoin. The reason why Bitcoin can be so arrogant and exist independently without relying on any organizational structure is because the bottom layer is supported by blockchain technology.

Just like our mobile phones can run, the bottom layer is supported by Android or ios system. So what kind of technology is blockchain? Why is it so powerful? Can make Bitcoin so valuable! The English name of blockchain is block chain, and block means block. You can imagine that if you fall or bump into something, you may have bruises, right? The blocks in the blockchain contain some The data block of transaction information, something, may have a bruise, right? The block in the blockchain contains some data blocks of transaction information, and the chain in the blockchain connects the data blocks. , this is like a big accountTherefore, anyone who uses this blockchain ledger can directly query any transaction information arranged in order, and it is difficult to tamper with. So how does it do it?

Let’s give a simple example based on local materials: There are now a total of 100 readers, who are linked through the Internet to form a blockchain network system. Please pay attention! We are not reading this article now, but a blockchain network system. In this system, I ask one of the people, say this person is called panda, to borrow 10 yuan, and then panda transfers the 10 yuan to me in the network system. Then my account or wallet increased by 10 yuan. As for panda, who lent money to Bibi, his account lost 10 yuan. After this transaction is completed, other people in our blockchain network system, after seeing it, will take a small notebook and record the matter. My account will increase by 10 yuan, and panda's account will decrease by 10 yuan.

That’s not right, then what are you doing when you are full and have nothing to do? Why should we record these small and medium-sized "bad things"? It’s because the network system will pay wages to those who participate in recording. As long as she records it once, the system will automatically reward tokens that are common in the network system. As long as there is money, everyone is willing to do anything. In reality, there are actually countless individuals in a blockchain system, which means that our group not only has only 13 people, but they don’t know each other yet, but they can all communicate with each other on the system chain and record them in the blockchain in order. For this transaction in the network, if one day I want to default on the debt and no longer plan to pay back 10 yuan to panda, then I must convince more than 51% of the people in the blockchain network system to delete this record or tamper.

If it were replaced by real-world computing power, it would be almost impossible and would require huge costs. This is the characteristic of blockchain technology - decentralized collaboration, transaction data is difficult to tamper with, and transaction information is transparent and queryable. Its main function is to solve two problems that are difficult to solve on the Internet - one is trust and the other is value transfer.

The so-called trust, according to the above scenario, is that I may default on the loan and take the money and run away; the value transfer is: my borrowing account should increase by 10 yuan, while the panda account becomes -10 Yuan money exchange. Then we may have questions again, isn't Alipay and WeChat payment solved now? Wouldn’t it be enough to just confirm the account and transfer the money directly and send a red envelope? Yes, Alibaba and Tencent exist based on solving these two problems. but! Thinking about it from another perspective, if a mere blockchain technology can solve these two problems now, can huge and complex institutions like Alibaba and Tencent be abandoned?

Rebuilding a new network system to apply it to more fields is on the way.

Because, the final conclusion is: this technology builds the value of Bitcoin, then this technical logic can also be used in many other fields. Maybe one day you will be happy to discover - Huh? I am now using a product from a certain blockchain technology company! ? Just like many years ago, one day you unknowingly used QQ and started to learn to watch videos and play games online. Having said that, what does it mean that Bitcoin is an early asset of the blockchain? Why does it add value? According to the scenario mentioned above, the so-called tokens are the tokens issued by the system to everyone in the group by participating in accounting. These tokens are blockchain assets. (The behavior of everyone participating in bookkeeping is commonly known as mining.) Bitcoin itself is the value token of the Bitcoin blockchain network system

Then why is it Will it add value? Because its quantity is limited, the number of issuances is determined at one time from the beginning of the establishment of the network system and will never be issued additionally.

So, in the future, the more people participate in accounting in a certain blockchain network, the number of people who get it will gradually decrease, and value-added will become inevitable. This is like Alibaba's early stocks. After the Alipay application is launched, the more people participate in using it, the more it is needed, and Alibaba's stocks will inevitably increase in value.

Of course, there are currently many projects applying blockchain technology, but most of them have not found a landing scenario. However, the more people believe that a project created using blockchain technology will be used in the future. If necessary, the price of the tokens of this project will be pushed up. Therefore, there are far more investment opportunities in blockchain assets than in the ordinary stock market. If you invest in a value project, then it may skyrocket to over 130,000 per Bitcoin a few years ago, to a little over 40,000 now. In other words, you don’t need to consider any investment opportunities in other varieties. A few years ago, if you bought Bitcoin with your eyes closed and then ignored it and just went about your own business, the return on this investment would be 100 times in one year.

Profit! How much is that right? The opportunities in this industry are far more than these. Almost all currencies will have the opportunity to rise or fall sharply, but this range of rise and fall is not like the 10% daily limit in stocks. Blockchain assets disappear from trading around the world 24 hours a day, and It is T+0, and there is no limit on the increase or decrease. The price of any variety is completely affected by the limit on the increase or decrease and the pursuit of funds. Most varieties have experienced an increase of more than 100% throughout the year. High This kind of investment opportunity is also difficult to find in other markets.

The currency circle is like Tai Chi. Only when a person is in a state of tranquility can he feel the opponent's strength and intention in the push hand for the first time. What I felt at the time was that only by clearing myself could I receive information to the greatest extent and fastest, and make correct judgments and responses. currencyThe same is true for circles.

This material is for learning reference only and does not constitute buying or selling advice. Buy and sell based on it at your own risk!

❺ How much does it cost to develop an APP for the SMCC shared chain blockchain system?

This type of software is the same as a regular APP. It still charges based on the difficulty of developing functions, but mobile phones are suitable for There are fewer matching models, and the price of individual adaptations will be relatively low, but overall the price is about the same as that of Android.

1. The quotation can only be made based on the labor and cycle cost assessment of the APP development workload;

2. It is recommended to sort out the requirements document first, or communicate with the APP development company you contacted. Good detail requirements;

3. Qihuipeigui Network can control the development cost and development cycle to a low;

4. Generally, companies develop frequently, and almost every Each APP will have different versions;

Summary: Find a development company with similar needs, so that there will be a lot of room for negotiation in the cycle and cost specified in the APP development book.

❻ Solana launches blockchain mobile phone Saga and Android open source software built-in Web3.0 Dapp store

Anatoly Yakovenko, co-founder and CEO of public chain Solana, today (24th) Earlier at a press conference in New York, it was officially announced that the Android phone Saga will be launched with Web3 as the core. At the same time, it was also officially announced that the Android open source software Solana Mobile Stack is available, which can develop native Android web3 applications on Solana. .

The Solana Mobile Stack on the app will include a Web3 dapp store, seed vault, and a secure escrow protocol for mobile devices: helping to sign transactions instantly while keeping private keys with wallets, apps, and Android operating systems separation, as well as integrating Android’s Solana Pay to facilitate QR code-based on-chain payments.

Saga is priced at US$1,000 and is open for pre-order from now on (a deposit of US$100 is required). It is expected to be shipped in the first quarter of 2023. However, according to official instructions, Saga is currently only available in the United States, the European Union and Open for use in the UK. It is reported that the device has a 6.67-inch OLED display, 512GB of storage space, 12GB RAM, and the latest Snapdragon 8+Gen1 mobile platform.

Yakovenko said: This is what I fundamentally think the industry needs to do. After 13 years of Bitcoin survival, we didn’t see any crypto features at Apple developer conferences…so I think it’s time for crypto to evolve to mobile devices.

FTX executionChief Sam Bankman-Fried (SBF) was also invited to attend the event. During his conversation with Yakovenko, he said that in most countries, most visits in people’s daily lives are conducted through mobile phones, but currently Cryptocurrency products are not very accessible on mobile devices.

"I can now use cryptocurrency for 1% of my purchases...but I prefer to pay with a mobile device. Having a device with a hardware wallet that supports web3 is super powerful."

for SMS provides US$10 million in development funds

Officials stated that Saga has received support from the Solana ecosystem, including: FTX, Phantom, Oracle, Magic Eden... will all cooperate with Solana Mobile Stack (SMS); the official also stated A $10 million developer fund will be provided for people building applications on SMS. Solana Labs Chief Operating Officer Raj Gokal said: Builders are coming and their quality is higher than before. They are ready for the next generation of user growth.

Analysts judge that Saga, which focuses on bringing more Web3 services to mobile devices, can expand the coverage of the Solana ecosystem to a mainstream audience and drive the development of more blockchains to join the ranks. , it may be possible to compete with traditional technology giants such as Apple and Microsoft one day in the future.

❼ What are the blockchain scenario application projects?

According to the latest data, developing an app probably costs tens of thousands to millions.

There are many factors to consider when developing an Android app software. If it is an APP with simple but not comprehensive functions and few customer requirements, you only need to ask the artist to modify the front-end UI page to a certain extent, which can be completed in as little as one or two days, and the cost will be several thousand yuan.

To develop a complete Android app, a simple one requires tens of thousands, and a complex one requires tens or millions. Android is not more difficult than IOS, and many teams can contract it.

(7) Blockchain Android extended reading:

Software maintenance

1. Delete the useless installation package apk in time after installing the App

Mobile phones and personal computers are very similar and have many similarities in maintenance methods. Nowadays, many ROMs that have been improved by mobile phone manufacturers are very considerate. Generally, after installing an App, you will be reminded whether to delete the installation package. If there is no other use, you can delete it immediately. If the mobile phone does not have this function, you can also delete it manually. .

2. Clear the cache regularly

Long-term use of social applications will generate a lot of cache, and the application itself will not delete it. Over a long period of time, a lot of cache will be accumulated, occupying storage space and causing lag, so you can use your phone device toDelete the clear cache function in the application management in settings. You can also use a system maintenance app that has the function of cleaning up junk. You can also uninstall and reinstall it.

3. Close unused programs promptly when using them

Although the Android system will automatically end some processes when memory is tight, in actual applications, you should have the awareness to prepare for a rainy day. , usually just end the currently unused apps on the multi-tasking interface to release the current running memory of the phone, which not only helps the phone run efficiently, but also prevents the traffic from being wasted when its background software is running.