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⑴ What virtual currencies can be invested in

A new generation of Bitcoin - the birth of the Bitcoin era

General background: the financial application of blockchain technology Come to extremely high investment value

The 2018 China International Big Data Industry Expo opened in Guiyang City, Guizhou Province on the 26th. It was pointed out at the meeting that my country will vigorously develop the digital economy in the future and deeply implement the big data and cloud computing development action plan. In-depth study of blockchain technology and applications. Especially its application in the financial field has become the focus of both the technology and financial circles.

1. The value of blockchain lies in its ability to perfectly solve the current pain points of the financial industry:

Today’s asset securitization, insurance, supply chain finance, commodity trading, asset custody, etc. In many financial scenarios, due to the large number of participants, high cost of credit assessment, and low settlement efficiency of intermediaries, traditional financial service methods are difficult to effectively solve long-standing problems in the industry, such as information asymmetry, complex and redundant processes, and information verification costs. Advanced core pain points.

2. Why blockchain can solve the above pain points:

Blockchain technology integrates many basic technologies such as distributed accounting, non-tampering, and built-in contracts to build a A mechanism to build trust at lower cost. Financial applications based on blockchain technology can realize the ability of all market participants to obtain all transaction information and asset ownership records in the market without distinction, effectively solving the problem of information asymmetry; smart contract embedding reduces the error rate in the payment and settlement process. It simplifies the process and improves efficiency; at the same time, based on transparent information and a new trust mechanism between the parties, there is no need to spend manpower, material resources, and financial resources to confirm information, which will greatly reduce the cost of trust between institutions and thus reduce financial services. Prices and Transaction Costs.

3. The application of blockchain technology in the financial field mainly includes the following aspects:

① Digital currency

Among them, Bitcoin is the most famous. Based on Bitcoin, a large number of other types of decentralized digital currencies have been derived. Such as: Bit Prosperity.

② Payment settlement

Compared with the traditional payment system, blockchain payment can directly conduct end-to-end payments for both parties to the transaction without resorting to the banking system, improving speed and reducing costs. can be greatly improved.

③ Digital bills

④ Bank credit management: The advantage of blockchain is that it can rely on program algorithms to automatically record credit-related information and store it on every computer in the blockchain network. On the computer, the information is transparent, cannot be tampered with, and the cost of use is low.

⑤ Proof of Equity and Exchange Securities Trading

Major financial institutions and exchanges in Europe and the United States are exploring the application research of building a next-generation financial asset trading platform based on blockchain technology.

4. Blockchain development prospects

The depth and breadth of the combination of blockchain technology and the financial field are far from saturated, and the application prospects are broad. Future development of blockchain technologyTechnology that takes the alliance chain as the entry point will have the most vitality and will have a significant effect and far-reaching impact on the transformation of the pain points of the traditional financial industry.

In response to the good investment prospects of blockchain, domestic companies Alibaba, JD.com, and the Internet have all entered the industry. Financial scenario applications based on blockchain technology not only bring us security and convenience, but also provide us with a broader investment space. The rise and skyrocketing prices of digital currencies represented by Bitcoin (Bitcoin was about 2 cents when it was first listed in 2009, and its current price is about 7,300 US dollars!) is the best proof that people with a keen sense of smell have made huge profits from it. .

The concept and technical implementation of the new generation of Bitcoin Shengshi Coin

Abstract: This is a Bitcoin developed by Satoshi Nakamoto, with improvements and additions such as double-layer rewards. Control network—also known as the masternode network, an encrypted digital currency with many new functions. It also includes anonymous payment (Bit Shengshi) to improve interchangeability, and instant payment function docking (p2p mall) to achieve instant transaction confirmation without relying on central authority.

1. Introduction

In 2009, Satoshi Nakamoto proposed the concept of Bitcoin. Since then, Bitcoin has rapidly spread in mainstream applications and commercial uses, becoming the first A digital currency that attracts a large number of users is a milestone in the history of digital currency. However, looking at the situation of Bitcoin reception from the perspective of completing transactions, we can find an important problem, which is that the Bitcoin block takes too long to confirm transactions, and traditional payment companies have figured out how to enable buyers and sellers to achieve zero confirmation of Bitcoin transactions. solution, but this solution usually involves using a trusted third party to complete the transaction outside of the agreement.

Bitcoin provides pseudonymous transactions, realizing a one-to-one transaction relationship between the sender and the recipient, and can forever record transactions that have occurred on the entire network. It is well known in academia that Bitcoin offers only a low level of privacy, and despite this shortcoming, many still trust the transaction history recorded on the blockchain.

Based on the achievements of Satoshi Nakamoto, BitProsperity is an encrypted digital currency with the purpose of protecting privacy. We have made a series of improvements based on the concept of Bitcoin, resulting in a decentralized and anonymous encrypted digital currency that supports tamper-proof real-time transactions and can provide services for the Bitcoin network. Peer-to-peer secondary network for service rewards.

2. Master Node Network

Full nodes are servers running on the p2p network, allowing small nodes to use them to accept dynamic changes from the entire network. These full nodes require significant traffic and other resources that consume significant costs, and as a result, a steady downward trend in the number of these nodes on the Bitcoin network will be observed over a period of time, adding an additional 40 seconds to the block broadcast time. . To solve this problem, many solutions have been proposed, such as the introduction of a new reward program developed by Microsoft and the Bitnodes incentive program.

Figure 6: Mining reward model

⑵Station B released the Ethereum version of NFT-"Cheers UP" series for overseas users

According to relevant media reports on April 28, Bilibili authorized the release of the "Cheers UP" series of NFTs for overseas users. , this series includes 10,000 avatar NFTs released on Ethereum, which may be the first batch of Ethereum version NFTs from major domestic Internet companies.

The "Cheers UP" series of NFTs are released by the crypto-native culture and content platform "CryptoNatty", with members from "Base Labs". Base Labs is an innovation-led team dedicated to blockchain and Natty application technologies.

Official insiders close to Bilibili revealed that the NFT was released by Bilibili’s authorized partners and was not released directly by Bilibili. CryptoNatty’s official website shows that CryptoNatty has been authorized by Bilibili to issue “Cheers UP” NFT.

The service agreement information provided on the website shows that the "CryptoNatty" team may be located in Singapore. As Singapore gradually incorporates cryptocurrency into the regulatory system, it is gradually becoming the center of Asia's encryption field, with a large number of NFT and Web3 companies located here.

CryptoNatty tweeted: "We will release a new series of Cheers UP PFP that represents Bilibili community culture, because 'Bilibili Cheers' is the company's iconic slogan."

According to Bili According to Bili’s official company introduction, Bilibili is an iconic brand and leading video community whose mission is to enrich the daily lives of China’s young generation. It provides a full range of video content to meet the diverse interests and preferences of users, and has built a fairly large community around culturally pursuing users, high-quality content, talented content creators, and the strong emotional bonds between them. .

The "Cheers UP" NFT series is representative of Bilibili community culture. The "Cheers" image in the NFT series comes from the "Cheers - ( - )つロ" emoticon, and its original source comes from the video [Touhou]⑨ and the introduction of beer carried when the UP main projection disappears, and later formed a barrage After being widely spread, the craze appeared in the title bar suffix of the homepage and was officially recognized. "Bilibili Cheers" eventually became Bilibili's signature slogan. The “Little TV” image is Bilibili’s official IP.

The “Cheers UP” series is based on Ethereum

Will be launched on OpenSea

The CryptoNatty website shows that there are a total of 10,000 NFTs in the "Cheers UP" series. All characters are generated through procedures and are divided into multiple levels according to their rarity. Each image has unique characteristics, including different items held in hand, Face, clothes, skin color and headgear. Stored on the Ethereum blockchain as ERC-721 tokens and hosted on IPFS.

Since it is created based on the Ethereum ecosystem, this series of NFTs will be launched on OpenSea, the world's largest NFT trading platform.

How can I get it?

Its official website shows that in addition to the 233 NFTs reserved by the team, the remaining 9,767 are for wallet addresses verified by the lottery, each priced at 0.12 ETH, which is approximately US$340.

The whitelist for "Cheers UP" is now open for registration. In order to avoid bots and scalpers, they will announce the winning list and screening rules later. Selected users will be able to mint "Cheers UP" directly from the official website.

The maximum minting amount per address will be announced on May 8, 2022.

It should be noted that the official website emphasizes that it wants to give Cheers more space and autonomous community. Currently, the project will release first-hand information at the official website address and official Discord channel, but there are no official Facebook and Instagram accounts.

In order to lay out the metaverse, Bilibili has previously launched digital collections

In December last year, during a conference call after the release of the third quarter financial report, Bilibili CEO Chen Rui expressed his views on the "metaverse". Universe” expresses a related attitude. He believes: "If you start to lay out or enter the metaverse now, it is too late. Because the various elements contained in the metaverse need to be built over a long period of time." At that time, Bilibili was testing the "high-energy chain" related to the metaverse business. ".

At the special meeting of the 5th session of the 13th Shanghai CPPCC this year, Chen Rui reiterated the view that Metaverse is "not a product, but actually an industrial concept." He also proposed that the metaverse is a virtual world and a wave of technological innovation. It can also enhance reality - making the real worldThe work and life experience are more efficient, and costs can also be saved.

"The Metaverse is definitely the future." Qingdian, a digital collectibles player, said. And NFT, which has a lower threshold, has become a "stepping stone to the metaverse."

The ability to confirm digital assets and free flow are the two main charms of NFT. Station B regards NFT as the basis for building and realizing the metaverse, and has already made plans for this. When we check the digital collection sales calendar of Bilibili, we can also find that Bilibili released "Gede", "Biyile'Tiger", and "Cheers" on January 5th, January 24th, and March 24th of this year respectively. 2022” Three batches of digital collection avatars. Among them, "Cheers 2022" has the largest number, reaching 7,767.

"Cheers 2022" is closest to the launch of the "Cheers UP" series. On March 24, Station B launched a series of digital collections called "Cheers 2022", limited to 10,000 pieces, of which 7,767 are for users and 2,233 are reserved by the issuer. On March 30, the official account of Bilibili "Bilibili Digital Collection" also released a video to introduce and promote "Cheers 2022".

The video shows that this series of NFTs are consistent with the current mainstream avatar NFTs, with a variety of unique appearances, clothing, expressions and other elements.

Station B actively participates in the construction of the Metaverse and the layout of NFT, but it has always had a more cautious attitude towards this. The official emphasized: "We have always carried out the digital collection business strictly and prudently, and resolutely oppose all forms of digital collection speculation."

Due to the risk of speculation in digital collections, Station B has set strict subscription requirements Conditions: You must be over 14 years old to own. In April, the "transfer" function commonly used by major manufacturers was launched, which stipulates that users can transfer digital collections to real-name users free of charge after holding them for 30 days, and recipients can transfer them again after holding them for 30 days, restricting circulation.

But no matter what, Bilibili seems to have been at the forefront of the new NFT gameplay of major manufacturers. In January this year, when the official certification account of Bilibili announced that its first digital art avatar, "Geve Virtue", was officially open for registration, some media believed that this news meant that Bilibili would join the wave of domestic technology giants issuing digital collections. The first NFT for young people may be coming. The release of the "Cheers UP" series of NFTs this time, according to Jiemian News, may be the first batch of Ethereum version NFTs from major domestic Internet companies.

Affected by market news, on the last trading day of April,Bilibili's closing price rose by more than 9.7%.

⑶ What is the meaning of "block" in blockchain?

"Blockchain is equivalent to this ledger, and a block is equivalent to a page of this ledger. A block The information carried in it is the transaction content recorded on this page. The blockchain is piece by piece, and each piece is filled with transaction records. When connected together, a chain is the blockchain."

< p> Taking Bitcoin as an example, there is a "computing power competition" about every ten minutes to compete for the right to keep accounts. It's like saying that your computing power is awesome and you can calculate more, just like your muscles are stronger and you can beat better. Everyone obeys you and lets you keep this account, that is, write a block to the general ledger of the blockchain ( Note that it is not the rights of the content in the block). However, it should be noted that computing power can only determine the probability of winning the competition. It's like saying that there are a total of several lottery tickets. Those with more computing power can buy more to increase the probability of winning. However, those who buy more may not necessarily win in the end.

Blockchain is a chain of data blocks guaranteed by such computing power. Starting from the first block, each block collects data according to certain rules, and then attaches a value to the data so that the result of the formed data block after similar one-way function calculation falls within a certain range. By estimating the computing power of the entire network and controlling the size of the result range, we ensure that data blocks that meet the requirements can be found within a long enough time. This calculation result will be included in the next block, and the chained data structure formed in this way is called a blockchain.

Each small ledger is called a block, and each different blockchain protocol (generating different cryptocurrencies) will specify the size of each block (originally Bitcoin is 1M) and the ledger composition area Blocks form a linked list, and the header of the block contains the hash value of the previous block. This is the blockchain. In this way, no one can modify the content or exchange the order at will. If you do this, it means you need to recalculate all special numbers.

Regulations allow everyone in the world to build blocks. Everyone who creates a new block (finds this special number - the SHA256 value has 30 zeros) can get a reward. For the people (miners) who create the new block:

1. No Sender information, no signature required

2. Each new block will add new virtual (encrypted) currency to the entire currency

3. The process of creating a new block is also called For "mining": it requires a lot of work and can inject new currency into the entire economy

4. The job of mining is to: accept transaction information, build blocks, broadcast blocks, and then Get new money as a reward

For each miner, each block is like a small lottery, and everyone is trying to guess the numbers quickly until one lucky person finds a special number. If the hash value of the entire block has many zeros at the beginning, you will be rewarded. I remember there was a Zhihu answererTo give a vivid metaphor, the blockchain is like a king who has a beautiful and beautiful daughter (Block). Many young people are eagerly looking forward to it, and the king’s method is to give a rare question for all the young people to calculate ( Learning changes life), whoever calculates quickly (may also be lucky in the process of calculating hash value) will be able to embrace the beauty.

For users who want to use this system to receive and pay, they do not You need to listen to all transactions, and you only need to listen to the blocks broadcast by the miners, and then update them to the blockchain you save.

A "block" can also be imagined as a box, a block There were some digital currencies and a small note inside. The small note recorded the only transaction information that occurred within these ten minutes, for example - "Little A transferred 100 yuan to Little B"; of course, This information must have been encrypted to ensure that only Little A and Little B (through the keys in their hands) have the ability to decipher the real content inside.

After this magical block was created, it was quickly buried underground. As for where it was buried? No one does not know that it is possible to find (find an effective proof of work) only after all the computer nodes participate together and dig deep. Obviously, this is an event with a huge workload and random results. However, for the computer node, once the block is dug out from the ground, he will obtain the valuable digital currency in the block, as well as the tip paid by Little A in the process of "Little A transferred 100 yuan to Little B" . At the same time, for this node, only he has the right to actually record the contents of the small note. This is an honor, while other nodes can only use its copy, a copy that is no longer blessed by digital currency. . Of course, there are some other very special features of this magical block.

The process by which computer nodes can dig out blocks from the ground is called "mining". As I just said, this is a job. It’s something that involves huge amounts of money, a lot of luck, but huge returns. A node from Zhangheng Road, Pudong New Area, Shanghai, China suddenly jumped out and said excitedly: "I dug the block! The small notes inside are all valid! The reward is mine!". Although the Zhang Heng Road node has obtained the digital currency at this moment, for other computer nodes, because there are other interests involved, they will not choose to believe what the Zhang Heng Road node says by default; based on the mutual distrust of strange nodes In principle, they took the block (copy) so-called mined by Zhang Henglu node and began to verify whether the information on the small note in the block was true and valid, etc. In the blockchain world, nodes verify the accuracy of information on small notes, or indirectly or directly determine whether the node that successfully mined the block is lying. (How to define the authenticity and validity of small note information will be explained later, so I won’t go into details here). During the verification process, each node will directly express its recognition (accuracy) and attitude towards the Zhang Heng Road node through the following two actions: stop half or even 80% of the mining process;The block (copy) successfully mined by Zhang Henglu node is appended to the end of its own blockchain. You may be a little confused: if you stop, you may have performed 80% of the mining activities, so wouldn’t 80% of the previous work have been in vain? ! Then, what the hell is at the end of the blockchain? Regarding the first confusion. I want to say that what you said is absolutely correct, but there is no way. The reality is so cruel. Even if you have done 80% of the work, you have to give up. This 80% of the work can almost be regarded as wasted work and an absolute waste of money and labor. . The second confusion is, what is the blockchain and the end of the blockchain? This is not explained clearly in advance, but you can simply imagine: blocks are periodically generated and mined, and a computer node may have executed "take blocks from others" N times in advance - > The process of "verifying the validity of small notes" must have already stored N blocks on its own node, and these blocks will be neatly arranged in a chain in chronological order. Yes, this chain is the blockchain you have always thought of. If you still don't understand, it doesn't matter. There will be many opportunities to study in depth later in the article.

Enter the microscopic world of the block to find out what the small note is, its origin and its lifelong mission: when initiating a transaction, initiate The person will receive a small note, and he needs to write the transaction record on the paper, such as "Stealing transfer of 40 yuan to Zhang San". Miraculously, the moment you finish writing, the transaction record will be automatically formatted on the back of the note to include at least two important fields: "input value" and "output value"; "input value" is In order to record the valid source of digital currency, the "output value" records the object to which the digital currency is sent. The note just created was immediately marked as an "unconfirmed" note. A small piece of paper that successfully mines a block from the ground and is eventually connected to the blockchain will initially be marked as "valid." If this valid small note is used as the input value of other transactions, then this valid small note will soon be marked as "invalid". For various reasons, blocks are disconnected and discarded from the chain. The small slips of paper that were once marked as "valid" in this block will be re-marked as "unconfirmed". There is no concept of account balance in the blockchain. The digital assets you really own are actually a piece of transaction information; you can know the balance in your digital wallet through simple addition and subtraction operations. The above 1, 2, and 3 are just the knowledge points forcefully instilled in you at the beginning of the conclusion. Some of the descriptions may be a bit confusing and make you feel confused. Only by understanding the overall blockchain can you have a more comprehensive understanding. Therein lies the mystery.

Block capacity, when Bitcoin was created, or stipulated in the source code, the block capacity was 1M. The reason why it was originally designed as 1M was to prevent DOS attacks. On the other hand, when Satoshi Nakamoto created the blockchain, the capacity was 32M, but he changed the block capacity through an inconspicuous Commit with a description of "Clear up".It became 1M. In order to prevent the blockchain volume from growing too fast, it added some mystery to the issue of block capacity. A capacity of 1M means that the maximum number of transactions that Bitcoin can process is about 2,400 (486,882 is very close to the size of block 1,034.39).

Blockchain, to put it bluntly, is a small notebook for distributed accounting, a tool for accounting, and is based on the technology of cryptography. Once the data is traded Recorded on the blockchain, the data cannot be tampered with or denied. The Internet is the transmission of value, and the blockchain is the transmission of trust. Under the premise of blockchain technology as a credit endorsement, each node in the blockchain changes from a single center to a unified multi-center with multiple parties participating. Transaction transmission can be realized without the participation of third-party institutions, and efficiency is improved.

⑷ Who knows what Binance does?

Binance is the world’s top blockchain company and has created Exchange, Labs, Launchpad, and Blockchain Charity Foundation (BCF). The blockchain ecosystem including , Info, Academy and Trust Wallet has a lot of functions anyway.

⑸ Which blockchain digital currency is the most popular and worth doing now

Bitcoin, Ethereum, Bitcoin Cash, EOS, Ripple, etc. are relatively mainstream digital currencies and can be appropriately Investment and trading are risky, so invest with caution. You can search online for places like Huobi, Binance, OK, and Dobi trading platforms that can trade Bitcoin. These are relatively large trading platforms. Invest in mainstream digital currencies. Don’t invest in altcoins or air coins. Generally, there are operation guides on the platform

⑹ The secret of Radarcoin scam: What kind of scam is Radarcoin?

In China, there are two pyramid schemes under the banner of digital currency. The organization has developed relatively large. One is OneCoin and the other is RadarCoin. They are known as the two most outstanding twins among MLM coins. They are the two flags that carry the capital disk fraud and the two yardsticks for testing the IQ of buyers. As the saying goes, I have Vika on my left, radar on my right, and 3M on my chest. No matter how many people you choose, I will never look back.

To be honest, after seeing so many MLM coins, I have to say that the current Radar coins are actually well packaged, at least much better than OneCoin. Opening its official website, we can find , the MLM promoter still put a lot of thought into the design of the official website. From his design and layout, at least it is not comparable to other MLM coins with a design fee of 100 yuan. The website template of Radar Coin is at least not comparable. It cost one or two thousand, but it was different. It looked grand and stylish.

The scammer still worked hard

Then when we look back at his good brother OneCoin, we can find that OneCoin’s web design level is still at the level of the previous century.Ji, there is no flat style or dynamic interaction at all. This is a typical 100-yuan forum. It is really irritating. You have obviously defrauded so much money, but you are not willing to spend 100 yuan to decorate the facade.

The strong copycat style design of OneCoin

There is no harm without comparison. People who suddenly feel that they are deceived by Radar Coin can understand. After all, they have good looks, but People who have been fooled by OneCoin are really at a loss for words. Of course, appearances are appearances, and no matter how beautiful Radarcoin’s appearance is, it can’t hide its inner nastiness and ugliness.
Radar Coin is not only a pyramid scheme, but also an extremely concealed pyramid scheme. Its concept is also rubbish. If it is a global payment, what kind of trading currency will it use? And the cost of trading coins will also rise and fall. No one has ever done it. The transaction fees of the payment platform will rise and fall. It is a garbage platform that sells coins. Every time it rises, they make money. The previous people stored it in the background and then stretched it all at once. Then after a period of time, more people entered the market. Just selling a lot of people who were fooled into it made this garbage platform make a lot of money, and there was more money to play with everyone, what kind of real garbage currency. It's all bullshit.

⑺ What blockchain technology application development platforms are currently available in China

The so-called blockchain technology, referred to as BT (Blockchain technology), is also called distributed ledger technology. An Internet database technology characterized by decentralization, openness and transparency, allowing everyone to participate in database records.