区块链合约交易源码,区块链合约玩法
近年来，区块链技术及其应用越来越受到大家的关注，其中，区块链合约交易源码及其玩法也是一个热门话题。那么，今天就让我们来深入了解一下区块链合约交易源码及其玩法吧！
首先，让我们来看看区块链合约交易源码是什么？简单来说，区块链合约交易源码就是一种特殊的编程语言，它以智能合约的形式存在，可以替代传统的中心化交易系统，提供更加安全可靠的交易环境。
其次，我们来看看区块链合约玩法有哪些？其实，这种玩法有很多，比如投票，投资，游戏，拍卖等等。投票玩法就是通过智能合约来实现公平的投票，而投资玩法则是通过智能合约来实现安全可靠的投资；游戏玩法则是通过智能合约来实现更加真实的游戏；拍卖玩法则是通过智能合约来实现公平的拍卖。
最后，我们还可以看到，区块链合约交易源码及其玩法为我们带来了更多的便利，比如安全可靠的交易环境，公平的投票，安全可靠的投资，更加真实的游戏，公平的拍卖等等。因此，区块链合约交易源码及其玩法正在成为当今世界最具潜力的技术之一，未来它将给我们带来更多惊喜。
请查看相关英文文档
① What currency is aBey
aBey blockchain technology is developed by two artificial intelligence students from the Department of Computer Science, School of Mathematics and Information, Western University of Timisoara, Romania. PhD: Independent research project of Ciprian Pungila & Vorel Negru. A blockchain solution that adopts constant light block technology and multi-layer programming and expansion. aBey’s blockchain size has always remained the same, its size is only 50 active blocks. aBey blockchain technology is suitable for using electronic currency to conduct large-volume transactions in e-commerce systems, and is multi-layered, scalable, secure and programmable.
A brief analysis of aBey blockchain technology
② When did the second contract scam come out
In 2013.
In 2013, 19-year-old Vitalik Buterin first mentioned the idea of Ethereum in a book titled Ethereum White Paper, the Next Generation of Intelligent Connection and Decentralized Application Platforms. Subsequently in 2014, the algorithm of Ethereum and The agreement was officially implemented and US$150 million was raised. The system itself was finally completed on July 30, 2015.
Ethereum started planning almost in 2013, and the project began to be implemented in 2015. Before this, there were many digital currencies on the market that imitated Bitcoin. They made various modifications based on the Bitcoin code. In this way, a new blockchain application had to be developed, a new chain had to be redeployed, and then Developing applications on this chain is very difficult. Simply using a POW consensus mechanism is a huge maintenance workload.
③ What is the name of EOS coin in Chinese?
Hello questioner, it is called EOS coin, which is a token based on Ethereum.
EOS Coin
EOS (Chinese name: EOS, English name: EOS, abbreviation: EOS) is an Ethereum-based token released for the EOS.io blockchain system. It is a new blockchain architecture developed by Blockone Company, aiming to achieve performance expansion of distributed applications. The goal of the EOS project is to implement a blockchain architecture that supports applications similar to an operating system. The architecture provides accounts, authentication, databases, asynchronous communications, and program scheduling across hundreds of CPUs or clusters. The final form of this technology is a blockchain architecture that can support millions of transactions per second without paying usage fees for ordinary users.
Function of EOS token
The current form of EOS crypto currency is an ERC 20 smart contract token on the Ethereum blockchain. The EOS ERC 20 token will be officially launched on the EOS blockchain1: 1 Exchange the cryptocurrencies available in the EOS system. The EOS system is expected to be released in August 2017Test network, EOS blockchain main network is expected to take 1 year to go online. The following application scenarios are introduced when the EOS blockchain is officially launched.
EOS cryptocurrency has three main application scenarios: bandwidth and log storage (hard disk); computing and computing reserve (CPU); and state storage (RAM).
Both types of components, both transient and long-term, consume bandwidth and computation. The blockchain system will maintain logs of all messages, and these logs will be downloaded and stored by all full nodes. Through log information, the state of all applications can be reconstructed.
EOS cryptocurrency application scenarios can be explained specifically as:
Receiver payment: Customers purchase specific products from this business, and the sales revenue of these products will be used to pay business costs to avoid customers directly using Blockchain payments also do not limit or prevent businesses from determining monetization strategies for their products.
Delegation capabilities: If a blockchain is developed using the EOS software system, and its tokens are held by a holder, he may not need to immediately consume all or part of the available bandwidth, such a holder can Choose to give or rent unused bandwidth to others.
Separate transaction costs from token value: If the application owner holds a corresponding number of tokens, the application can continue to run with a fixed state and bandwidth usage. Developers and users are not affected by price fluctuations in the token market and therefore are not price dependent.
Block Reward: Every time a block is generated, the EOS.IO system rewards the block generator with a new token. The system may be configured to cap the rewards received by block producers so that total annual growth in the token supply does not exceed 5%.
Community Benefit Applications: Users can choose from 3 community benefit applications, also known as smart contracts. These smart contracts will collect tokens based on the proportion of votes each application receives from token holders. An elected application or smart contract can be elected by a newly elected application or token holder's smart contract. substitute.
What are the technical advantages of EOS?
1. EOS creates a developer-friendly blockchain underlying platform, a blockchain-like operating system with powerful performance that can support multiple applications running at the same time and multiple programming languages. Developers who develop dApps provide underlying modules to lower the development threshold, just like Microsoft's Windows. Do you think Microsoft is worth the money?
2. EOS solves the problems of latency and data throughput through parallel chains and DPOS. EOS can achieve millions of transactions per second, while currently Bitcoin’s is 7 transactions per second, and Ethereum’s is 30-40 transactions. This super capability of EOS beats Bitcoin and Ethereum. Such as the recent CryptoKitties| Collect and breed digital cats! This particularly popular ETH game, just one game accounts for about 15% of ETH’s throughput. If seven or eight similar games are launched at the same time, ETH will probably fail. It’s scary to think about it. ETH, which cannot expand bandwidth, will have great challenges in throughput, and EOS can solve the above problems.
④ What is EOS
EOS has four different meanings, as follows:
1. EOS: electronic and electrical
Electrical Electrical Over Stress (EOS) is a common cause of damage to components. Its manifestation is that overvoltage or overcurrent generates a large amount of heat energy, which causes the internal temperature of the component to be too high and damages the component (often called burnout). A common way to damage electronic devices is caused by pulses in electrical systems.
2. EOS: Embedded Operating System
Embedded Operating System (Embedded Operating System, referred to as: EOS) refers to the operating system used for embedded systems. The embedded operating system is a widely used system software, which usually includes hardware-related underlying driver software, system kernel, device driver interface, communication protocol, graphical interface, standardized browser, etc.
The embedded operating system is responsible for the allocation of all software and hardware resources, task scheduling, control and coordination of concurrent activities of the embedded system. It must embody the characteristics of the system in which it is located, and be able to achieve the functions required by the system by loading and unloading certain modules.
3. EOS: SDH-based Ethernet
POS (Packet Over SDH, SDH-based packet switching) and EOS are two different implementation methods for SDH networks to carry IP services. . POS technology appeared earlier, and EoS appeared later, with some technological evolutions.
The main difference with POS is that the Ethernet frame is first encapsulated and then mapped to the VC (virtual container) of SDH/SONET, and then the information is processed according to the SDH cross-mapping system.
4. EOS: Blockchain
EOS can be understood as Enterprise Operation System, a blockchain operating system designed for commercial distributed applications. EOS is a new blockchain architecture introduced to achieve performance expansion of distributed applications. Note that it is not a currency like Bitcoin and Ethereum, but a token released based on the EOS software project, called Blockchain 3.0.
(4) Extended reading of blockchain second contract code:
Characteristics of blockchain (EOS)
1. EOS is somewhat similar to Microsoft's Windows platform. By creating a developer-friendly blockchain underlying platform, it supports multiple applications running at the same time and provides underlying templates for developing dAPPs.
2.EOS solves the problems of latency and data throughput through parallel chains and DPOS. EOS can handle thousands of transactions per second, while Bitcoin has about 7 transactions per second and Ethereum has 30-40 transactions per second;< /p>
3. EOS has no handling fees and has a wider general audience. To develop dApps on EOS, the network and computing resources required are allocated according to the proportion of EOS owned by the developer. When you own EOS, it is equivalent to owning computer resources. With the development of DAPP, you can lease the EOS in your hand to others. From this point alone, EOS also has extensive value.
⑤ What is EOS
EOS is Enterprise Operation System in English. EOS has two meanings. It can refer to the EOS.IO software, or it can refer to the Token used on the EOS platform. ). EOS.IO is a platform software developed by its founding team Block.one. It builds the underlying technical architecture of a blockchain, similar to the operating system in the blockchain, enabling more developers to quickly build on the EOS.IO platform. Conveniently build distributed application software (DAPP). EOS is like Windows in PCs, Android and iOS in mobile phones, and is the basic platform in the blockchain. EOS token is the value carrier in the EOS platform. It is an important tool for obtaining network resources and users' voting, and connects various roles in the EOS ecosystem.
⑥ What currency is eos
Blockchain currency.
EOS coin is a blockchain operating system designed for commercial distributed applications. EOS is a new blockchain architecture introduced to achieve performance expansion of distributed applications. It is Called Blockchain 3.0. E0S has considerable investment value and has basically gained consensus in the currency circle. It can also be said to be the troika of virtual currencies.
(6) Blockchain second contract code extended reading:
Notes:
Blockchain The technology is still in an early stage. Not only has a unified technical standard not yet been formed, but various technical solutions are still developing rapidly. However, the scalability of blockchain technology has not been tested in large-scale practice, and it is still mainly in the prototype design stage. Therefore, in a relatively short period of time in the future, there will still be problems with the blockchain’s uploading speed, and it will not be able to meet large-scale commercial applications for the time being.
There are bubbles in various virtual currencies on the market, and investment must be cautious: virtual currency itself is not a real currency. Although virtual currency uses the source technology of blockchain, it is neither endorsed by national power. It has no actual use value.
⑦ 108 knowledge points for getting started with blockchain
1. What is blockchain
Combine the information of multiple transactions and the information indicating the block Information packaged together, the verified package is the block.
Each block stores the hash value of the previous block, creating a relationship between blocks, that is to say, a chain. Together they are called blockchain.
2. What is Bitcoin
The concept of Bitcoin was proposed by Satoshi Nakamoto in 2009, with a total number of 21 million. The Bitcoin chain generates a block approximately every 10 minutes, and this block is mined by miners for 10 minutes. As a reward to miners, a certain number of Bitcoins will be issued to miners, but this certain number is halved every four years. Now it's 12.5. If this continues, all Bitcoins will be available in 2040.
3. What is Ethereum
The biggest difference between Ethereum and Bitcoin is the smart contract. This allows developers to develop and run various applications on it.
4. Distributed ledger
It is a database that is shared, replicated and synchronized among network members. To put it bluntly, all users on the blockchain have accounting functions and the content is consistent, which ensures that the data cannot be tampered with.
5. What is quasi-anonymity?
I believe everyone has a wallet, and the wallet address (a string of characters) used to send transactions is quasi-anonymity.
6. What is open transparency/traceability
The blockchain stores all data from history to the present, anyone can view it, and can also view any data in history.
7. What is tamper-proof
Historical data and current transaction data cannot be tampered with. The data is stored in the block on the chain and has a hash value. If the block information is modified, its hash value will also change, and the hash values of all blocks following it must also be modified to form a new chain. At the same time, the main chain is still conducting transactions to generate blocks. The modified chain must always generate blocks synchronously with the main chain to ensure that the length of the chain is the same. The cost is too high, just to modify a piece of data.
8. What is anti-DDoS attack
DDoS: Hackers control many people’s computers or mobile phones and allow them to access a website at the same time. Since the bandwidth of the server is limited, a large amount of traffic The influx of data may cause the website to fail to function properly, resulting in losses. However, the blockchain is distributed and there is no central server. If one node fails, other nodes will not be affected. Theoretically, if more than 51% of the nodes are attacked, problems will occur.
9. Definition of the main chain
Taking Bitcoin as an example, at a certain point in time, two miners dig out a block at the same time, and then the next six miners are mined first.The chain of blocks is the main chain
10. Single chain/multi-chain
Single chain refers to the data structure that handles everything on one chain. The core essence of the multi-chain structure is composed of public chain + N sub-chains. There is only one, but in theory there can be countless sub-chains, and each sub-chain can run one or more DAPP systems
11. Public chain/alliance chain/private chain
Public Chain: Everyone can participate in the blockchain
Alliance chain: Only alliance members are allowed to participate in accounting and query
Private chain: Writing and viewing permissions are only controlled by one person In the hands of the organization.
12. Consensus layer, data layer, etc.
There are six overall structures of the blockchain: data layer, network layer, consensus layer, incentive layer, contract layer, and application layer. Data layer: a layer that records data, belonging to the underlying technology; network layer: a structure for building a blockchain network, which determines how users are organized. Consensus layer: Provides a set of rules to allow everyone to reach agreement on the information received and stored. Incentive layer: Design incentive policies to encourage users to participate in the blockchain ecosystem; Contract layer: Generally referred to as "smart contracts", it is a set of contract systems that can be automatically executed and written according to their own needs. Application layer: Applications on the blockchain, similar to mobile apps. Former Distributed Storage R&D Center
13. Timestamp
The timestamp refers to January 1, 1970 Day 0 hours 0 minutes 0 seconds 0... The total number of seconds from the current time to now, or the total number of nanoseconds and other very large numbers. Each block is generated with a timestamp indicating when the block was generated.
14. Block/block header/block body
Block is the basic unit of blockchain, and block header and block body are components of blockchain. The information contained in the block header includes the hash of the previous block, the hash of this block, timestamp, etc. The block body is the detailed data in the block.
15. Merkle tree
Merkle tree, also called binary tree, is a data structure for storing data. The bottom layer is the original data contained in all blocks, and the upper layer is each The hash value of a block, the hash of this layer is combined in pairs to generate a new hash value, forming a new layer, and then upwards layer by layer, until a hash value is generated. Such a structure can be used to quickly compare large amounts of data, and you can quickly find the bottom-level historical data you want without downloading all the data.
16. What is expansion?
The size of a Bitcoin block is about 1M and can save 4,000 transaction records. The purpose of expansion is to make the block larger, so as to ensure theSave more data.
17. What is a chain?
Each block will save the hash of the previous block, creating a relationship between the blocks. This relationship is a chain. Data such as block transaction records and status changes are stored through this chain.
18. Block height
This is not the height mentioned in terms of distance. It refers to the total number of blocks between the block and the first block on the chain. This height indicates which block it is, and is just for identification purposes.
19. Fork
Two blocks were generated at the same time (the transaction information in the block is the same, but the hash value of the block is different), and then in Two chains are forked from these two blocks. Whoever generates 6 blocks from these two links first will be the main chain, and the other chain will be discarded.
20. Ghost Protocol
Mining pools with high computing power can easily generate blocks faster than mining machines with low computing power, resulting in most of the blocks on the blockchain being generated by these mining pools with high computing power. However, the blocks generated by mining machines with low computing power are not stored on the chain because they are slow, and these blocks will be invalid.
The ghost protocol allows blocks that should be invalidated to remain on the chain for a short time, and can also be used as part of the proof of work
. In this way, miners with small computing power will contribute more to the main chain, and large mining pools will not be able to monopolize the confirmation of new blocks.
21. Orphan block
As mentioned before, orphan blocks are blocks generated at the same time. One of them forms a chain, and the other does not form a chain. Then this block that does not form a chain is called an orphan block.
22. Uncle block
The orphan block mentioned above, through the ghost protocol, makes it part of the proof of work, then it will not be discarded and will be saved in the main chain superior. This block is the next
23 replay attack
The hacker resends the message that has been sent to the server. Sometimes this can deceive the server into responding multiple times.
24. Directed acyclic graph
Also called data set DAG (directed acyclic graph), DAG is an ideal multi-chain data structure. Most of the blockchains mentioned now are single chains, that is, one block is connected to another block, and DAG is multiple blocks connected. The advantage is that several blocks can be generated at the same time, so the network can process a large number of transactions at the same time, and the throughput will definitely increase. However, there are many shortcomings and it is currently in the research stage.
25. What is mining
The mining process is to perform a series of conversion, connection and hash operations on the above six fields, and continue to try the random numbers one by one, and finally successfully find a random number that meets the conditions: after hashing The value after the hash operation is smaller than the hash value of the preset difficulty value. Then, the mining is successful. The node can broadcast the block to neighboring nodes. The neighboring nodes receive the block and perform the same operations on the above six fields. operation, verify compliance, and then broadcast it to other nodes. Other nodes also use the same algorithm to verify. If 51% of the nodes in the entire network are successfully verified, the block is truly "mined" successfully. , each node adds this block to the end of the previous block, deletes the list in the block that is the same as its own record, and repeats the above process again. Another thing to mention is that regardless of whether the mining is successful or not, each node will pre-record the reward of 50 Bitcoins and the handling fees of all transactions (total input-total output) in the first item of the transaction list (this is " The most fundamental purpose of "mining" is also the fundamental reason to ensure the long-term stable operation of the blockchain), the output address is the address of this node, but if the mining is unsuccessful, the transaction will be invalidated without any reward. Moreover, this transaction called "production transaction" does not participate in the "mining" calculation.
26. Mining machines/mines
Mining machines are computers with various configurations, and computing power is the biggest difference between them. A place where mining machines are concentrated in one place is a mining farm
27. Mining pool
Miners unite to form a team, and the computer group under this team is a mining pool. Mining rewards are distributed based on your own computing power contribution.
28. Mining difficulty and computing power
Mining difficulty is to ensure that the interval between generating blocks is stable within a certain short time, such as Bitcoin is issued in 10 minutes
p>Block 1. The computing power is the configuration of the mining machine.
29. Verification
When verification in the blockchain is a confirmation of the legality of the transaction, each node will verify the transaction once when the transaction message is propagated between nodes. Whether the transaction is legal. For example, verify whether the syntax of the transaction is correct, whether the transaction amount is greater than 0, whether the entered transaction amount is reasonable, etc. After passing the verification, it will be packaged and handed over to the miners for mining.
30. Transaction broadcast
The node sends information to other nodes through the network.
31. Mining fees
For the blockchain to work non-stop like a perpetual motion machine, miners need to maintain the system. Therefore, the miners must be given favorable fees to make it sustainable.
32. Transaction confirmation
When a transaction occurs, the block recording the transaction will be confirmed for the first time and will beEach block on the chain after this block is reconfirmed: when the number of confirmations reaches 6 or more, the transaction is generally considered to be relatively safe and difficult to tamper with.
33. Double transaction
That is, I have 10 yuan, I use the 10 yuan to buy a pack of cigarettes, and then instantly use the 10 yuan that has not yet been paid. Bought another cup of coffee. So when verifying the transaction, you need to confirm whether the 10 yuan has been spent.
34. UTXO unspent transaction output
It is a data structure containing transaction data and execution code, which can be understood as digital currency that exists but has not yet been consumed.
35. Transactions per second TPS
That is throughput, tps refers to the number of transactions the system can process per second.
36. Wallet
Similar to Alipay, it is used to store digital currencies, and blockchain technology is more secure.
37. Cold wallet/hot wallet
A cold wallet is an offline wallet. The principle is to store it locally and use QR code communication to prevent the private key from touching the Internet. A hot wallet is an online wallet. The principle is to encrypt the private key and store it on the server. When it is needed, it is downloaded from the server and decrypted on the browser side.
38. Software Wallet/Hardware Wallet
A software wallet is a computer program. Generally speaking, a software wallet is a program that interacts with the blockchain and allows users to receive, store, and send digital currencies and can store multiple keys. Hardware wallets are smart devices that specialize in handling digital currencies.
39. Airdrop
The project sends digital currency to each user’s wallet address.
40. Mapping
Mapping is related to the issuance of blockchain currency and is a mapping between chains. For example, there are some blockchain companies that have not completed the development of the chain in the early stage. They rely on Ethereum to issue their own currency. The issuance and transactions of the early currency are all operated on Ethereum. With the development of the company, the company's own chain development has been completed. The company wants to map all the previous information on Ethereum to its own chain. This process is mapping.
41. Position
Refers to the ratio of the investor’s actual investment to the actual investment funds
42. Full position
All funds are bought Enter Bitcoin
43. Reduce the position
Sell some of the Bitcoins, but not all of them
44. Heavy positions
Compared with Bitcoin, Bitcoin accounts for a large share of funds
45. Short position
Compared with Bitcoin, the share of funds is larger
46. Short position
Sell all the Bitcoins you hold and convert them all into funds.
47. Stop loss
After obtaining a certain profit, sell the Bitcoin held to keep the profit
48. Stop loss
After losses reach a certain level, sell the Bitcoins you hold to prevent further losses
49. Bull market
Prices continue to rise and the outlook is optimistic
50. Bear market
Prices continue to fall, and the outlook is bleak
51. Long (long)
The buyer believes that the currency price will rise in the future, buys the currency, and waits for the currency price After rising, sell at a high price to take profits
52. Short position (short selling)
The seller believes that the currency price will fall in the future, and sells the currency he holds (or borrows it from the trading platform) (coin) sell, wait for the price of the currency to fall, buy at a low price to take profits
53. Open a position
Buy virtual currencies such as Bitcoin
54 . Cover the position
Buy Bitcoin and other virtual currencies in batches, for example: buy 1 BTC first, and then buy 1 BTC later
55. Full position
All funds are purchased at one time to buy a certain virtual currency
56. Rebound
When the currency price falls, the price rebounds and adjusts because it falls too fast
57 .Consolidation (sideways)
The price fluctuation is small and the currency price is stable
58. Yin fall
The currency price declines slowly
59. Diving (waterfall)
The currency price fell rapidly and to a large extent
60. Cutting meat
After buying Bitcoin, the currency price fell, as Avoid expanding losses and selling Bitcoin at a loss. Or after borrowing the currency to go short, the currency price rises, and you buy Bitcoin at a loss
61. Hold on
Expect the currency price to rise, but unexpectedly the currency price falls after buying; or expect the currency price fell, but unexpectedly, after selling, the currency price rose
62. Unwinding
After buying Bitcoin, the currency price fell, causing a temporary book loss, but then the currency price rebounded and the loss was reversed For profit
63. Ta Kong
After selling Bitcoin because of the bearish market outlook, the price of the currency continued to rise. I was unable to buy it in time, so I failed to make a profit
64. Overbought
< p> The currency price continues to rise to a certain height, the buyer's power is basically exhausted, and the currency price is about to fall65. Oversold
The currency price continues to fall to a certain low, and the seller's power is basically exhausted When exhausted, the currency price is about to rise
66. Lure bulls
The currency price has been consolidating for a long time, and it is more likely to fall. Most of the short sellers have sold Bitcoin, and suddenly the short sellers will sell the currency. The price was raised, inducing bulls to think that the price of the currency would rise and buy one after another. As a result, the bears suppressed the price of the currency and locked up the bulls
67. Lure shorts
Bulls buy Bitcoin After the currency, they deliberately suppressed the price of the currency, making short sellers think that the price of the currency will fall, and they sold them one after another. As a result, they fell into the trap of the bulls
68. What is NFT
The full name of NFT is "Non-Fungible Tokens", which is non-fungible tokens. Simply put, it is an inseparable copyright certificate on the blockchain. It is mainly used for the confirmation, transfer and exchange of digital assets. The difference between digital currency is that it is unique and indivisible. In essence, it is a unique digital asset.
69. What is the Metaverse
The Metaverse is a collection of virtual time and space, consisting of a series of augmented reality (AR), virtual reality (VR) and the Internet (Internet) Composed of digital currency, which carries the function of value transfer in this world.
70. What is DeFi
DeFi, the full name is Decentralized Finance, which is "decentralized finance" or "distributed finance". "Decentralized finance", as opposed to traditional centralized finance, refers to various financial applications based on open decentralized networks. The goal is to establish a multi-level financial system based on blockchain technology and cryptocurrency. As a basis, re-create and improve the existing financial system
71. Who is Satoshi Nakamoto?
72. Bitcoin is different from Q Coin
Bitcoin is a decentralized digital asset with no issuing entity. Q Coin is an electronic currency issued by Tencent. It is similar to electronic points, but it is not actually a currency. Q Coin requires a centralized issuing institution. Q Coin can only be recognized and used because of the credit endorsement of Tencent. The scope of use is also limited to Tencent's games and services. The value of Q coins is entirely based on people's trust in Tencent.
Bitcoin failedIt is issued by a centralized institution, but it is widely recognized around the world because Bitcoin can self-certify its credibility. The issuance and circulation of Bitcoin are jointly accounted for by miners across the entire network, and no central institution is needed to ensure that no one can tamper with it. Ledger.
73. What is a mining machine?
Taking Bitcoin as an example, a Bitcoin mining machine is a professional equipment that competes for accounting rights by running a large amount of calculations to obtain new Bitcoin rewards. It is generally composed of a mining chip, a heat sink and a fan, and only performs A single calculation program consumes a lot of power. Mining is actually a competition between miners for computing power. Miners with more computing power have a greater probability of mining Bitcoin. As the computing power of the entire network increases, it becomes increasingly difficult to mine bits with traditional equipment (CPU, GPU), and people have developed chips specifically for mining. The chip is the core part of the mining machine. The operation of the chip will generate a large amount of heat. In order to dissipate heat, Bitcoin mining machines are generally equipped with heat sinks and fans. Users download Bitcoin mining software on their computers, use the software to assign tasks to each mining machine, and then start mining. Each currency has a different algorithm and requires different mining machines.
74. What is quantitative trading?
Quantitative trading, sometimes also called automated trading, refers to the use of advanced mathematical models to replace human subjective judgments, which greatly reduces the impact of investor sentiment fluctuations and avoids extreme fanaticism or pessimism in the market. make irrational investment decisions. There are many types of quantitative trading, including cross-platform trading, trend trading, hedging, etc. Cross-platform trading means that when the price difference between different target platforms reaches a certain amount, sell on the platform with a higher price and buy on the platform with a lower price.
75. Blockchain asset over-the-counter trading
Over-the-counter trading is also called OTC trading. Users need to find their own counterparties and do not need to match the transaction. The transaction price is determined by negotiation between the two parties. The two parties can fully communicate through face-to-face negotiation or telephone communication.
76. What is a timestamp?
The blockchain ensures that each block is connected sequentially through timestamps. Timestamps enable every piece of data on the blockchain to have a time stamp. Simply put, timestamps prove when something happened on the blockchain and cannot be tampered with by anyone.
77. What is a blockchain fork?
Upgrading software in a centralized system is very simple, just click "Upgrade" in the app store. However, in decentralized systems such as blockchain, "upgrading" is not that simple, and a disagreement may even cause a blockchain fork. Simply put, a fork refers to a disagreement when the blockchain is "upgraded", resulting in a fork in the blockchain. Because there is no centralized organization, every code upgrade of digital assets such as Bitcoin needs to be unanimously recognized by the Bitcoin community. If the Bitcoin community cannot reach an agreement, the blockchain will be very difficult to achieve.Split ends may form.
78. Soft fork and hard fork
Hard fork means that when the Bitcoin code changes, the old nodes refuse to accept the blocks created by the new nodes. Blocks that do not comply with the original rules will be ignored, and miners will follow the original rules and create new blocks after the last block they verified. A soft fork means that old nodes are not aware of the changes to the Bitcoin code and continue to accept blocks created by new nodes. Miners may work on blocks they have no understanding of, or validation of. Both soft forks and hard forks are "backwards compatible" to ensure that new nodes can verify the blockchain from scratch. Backward compatibility means that new software accepts data or code generated by old software. For example, Windows 10 can run Windows XP applications. Soft forks can also be "forward compatible".
79. Classification and application of blockchain projects
Judging from the current mainstream blockchain projects, blockchain projects mainly fall into four categories: Category 1: Currency; The second category: platform category; the third category: application category; the fourth category: asset tokenization.
80. USDT against the US dollar
USDT is Tether USD, a token launched by Tether that is against the US dollar (USD). 1USDT=1 US dollar, users can use USDT and USD for 1:1 exchange at any time. Tether implements a 1:1 reserve guarantee system, that is, each USDT token will have a reserve guarantee of 1 US dollar, which supports the stability of the USDT price. The unit price of a certain digital asset is USDT, which is equivalent to its unit price in US dollars (USD).
81. Altcoins and alternative coins
Altcoins refer to blockchain assets that use the Bitcoin code as a template and make some modifications to its underlying technology blockchain, among which Those with technological innovations or improvements are also called alternative coins. Because the Bitcoin code is open source, the cost of plagiarism in Bitcoin is very low. You can even generate a brand new blockchain by simply copying the Bitcoin code and modifying some parameters.
82. Three major exchanges
Binance: https://accounts.binancezh.ac/zh-CN
Okex: https://www .ouyi.top/
Huobi: https://www.huobi.af/zh-cn
83. Market software
Mytoken: http: //www.mytoken.com/
Non-small account: https://www.feixiaohao.co/
84. Information website
Babbitt: https://www.8btc.cn
Golden Finance: http://www. jinse.com/
Coin World News: http://www.bishijie.com
85. Blockchain Browser
BTC: https:/ /btc.com/
ETH: https://etherscan.io/
BCH: https://blockchair.com/bitcoin-cash/blocks
LTC: http://www.qukuai.com/search/ltc
ETC: https://gastracker.io/
86. Wallet
Imtoken: https://imatoken.net/
Bitpie: https://bitpie.com/
87. Decentralized Exchange
uniswap : https://uniswap.org
88. NFT Exchange
Opensea: https://opensea.io
Super Rare: https://superrare.com/
89. Ladder
Bring your own, buy a reliable ladder
90. Platform currency
The digital currency issued by the platform is used to deduct handling fees, transactions, etc.
91. Bull market, bear market
Bull market: rising market
< p> Bear market: falling market92. Blockchain 1.0
A currency trading system based on distributed ledgers, represented by Bitcoin
93. Block Chain 2.0
The contract blockchain technology represented by Ethereum (smart contract) is 2.0
94. Blockchain 3.0
In the era of intelligent Internet of Things, Beyond the financial sector, providing decentralization for various industriessolutions
95. Smart Contract
Smart Contract is a computer protocol designed to spread, verify or execute contracts in an information-based way. Simply put, in advance Set up an electronic contract, and once both parties confirm it, the contract will be automatically executed.
96. What is a token?
The token economy is an economic system with Token as the only reference standard, which is equivalent to a pass. If you own Token, you have rights and interests, and you have the right to speak.
Big data is the means of production, AI is the new productivity, and blockchain is the new production relationship. Big data refers to a collection of data that cannot be captured, managed and processed within a certain time range using conventional software tools. It is a massive, high-growth and high-volume data set that requires new processing models to have stronger decision-making power, insight discovery and process optimization capabilities. Diverse information assets. Simply understood, big data is massive data accumulated over a long period of time and cannot be obtained in the short term. Blockchain can be used as a way to obtain big data, but it cannot replace big data. Big data is only used as a medium running in the blockchain and has no absolute technical performance, so the two cannot be confused. (A simple understanding of production relations is labor exchange and consumption relations. The core lies in productivity, and the core of productivity lies in production tools)
ICO, Initial Coin Offering, initial public token issuance, is the first step in the blockchain digital currency industry. Crowdfunding. It is the most popular topic and investment trend in 2017, and the country launched a regulatory plan on September 4. Speaking of ICO, people will think of IPO, and the two are fundamentally different.
99. Five characteristics of digital currency
The first characteristic: decentralization
The second characteristic: having open source code
The third feature: independent electronic wallet
The fourth feature: constant issuance
The fifth feature: global circulation
100. What is decentralization?
It has no issuer, does not belong to any institution or country, and is a publicly issued currency designed, developed and stored on the Internet by Internet network experts.
100. What is measurement (scarcity)?
Once the total amount of issuance is set, it is permanently fixed, cannot be changed, cannot be over-issued at will, and is subject to global Internet supervision. Because the difficulty of mining and mining changes over time, the longer the time, the greater the difficulty of mining, and the fewer coins are mined, so it is scarce.
101. What is open source code?
Use alphanumeric groupsThe finished product is stored on the Internet, and anyone can check out the source code of its design. Everyone can participate, mine it, and make it open to the world.
102. What is anonymous transaction? Private wallet private?
Everyone can register and download the wallet online without real-name authentication. It is completely composed of encrypted digital codes. It can be sent and traded globally in real-time point-to-point without resorting to banks or any institutions. It cannot be traced by anyone without my authorization. ,Inquire.
A contract transaction refers to an agreement between a buyer and seller to receive a certain amount of an asset at a specified price at a certain time in the future. The objects of contract trading are standardized contracts formulated by the exchange. The exchange stipulates standardized information such as commodity type, transaction time, quantity, etc. A contract represents the rights and obligations of the buyer and seller.
105. Digital Currency Industry Chain
Chip manufacturers, mining machine manufacturers, and mining machine agents mine and export to exchanges for retail investors to speculate in coins< /p>
106. Who is Erben?
Erben: Digital Currency Value Investor
Investment style: Steady
Building a community: Erben’s Miscellaneous Talks (High Quality Price Investment Community)
p>
107. Two investment strategies
Combining long and short term, focusing on price investment, no contracts, no short-term play
Reasonable layout, scientific operation, prudent and conservative, making periodic money
108. Two books?
Welcome currency friends and seek common development
⑧ What countries’ currencies are close to 100 times the RMB
Nuggets.com
What are the 100 times coins? Taking stock of the top ten hundred-fold coins in 2020
Answered on 2022-04-04
”
Before answering this question, the editor of the currency circle will first tell you what a hundred-fold coin is ?A hundred-fold coin means that the currency price has increased a hundred times from the initial fundraising stage to a certain point in time, and a hundred-fold increase in the currency price means that the market value of the currency price has also increased a hundred times. In other words, a hundred-fold coin has always been the dream of investors. After understanding the meaning of 100-fold coins, let’s get back to the topic, what are 100-fold coins? Below, the editor of the currency circle will give you an inventory of the top ten 100-fold coins in 2020 for investors’ reference.
Inventory of 2020 Top Ten Hundred-fold Coins
1.ETH-Ethereum
The market value of Ethereum is US$48.59 billion, with a total circulation of 112 million.The 24-hour trading volume was US$7.904 billion.
Ethereum (English: Ethereum) is an open source public blockchain platform with smart contract functions. It provides a decentralized virtual machine (called the Ethereum Virtual Machine) through its dedicated cryptocurrency Ether (also known as "Ether") to process peer-to-peer contracts. The concept of Ethereum was first proposed by programmer Vitalik Buterin between 2013 and 2014 after being inspired by Bitcoin. It roughly means "the next generation of cryptocurrency and decentralized application platform" and was crowdfunded through ICO in 2014. to start developing. As of June 2018, Ethereum is the second-largest cryptocurrency by market capitalization. Ethereum is also known as the "second-generation blockchain platform", second only to Bitcoin.
2.
The virtual currency Ripple (XRP) was proposed by Ryan Fugger in 2004. Later, RippleLabs took over the operation and issuance. Compared with Bitcoin, which was released only in 2009 by Satoshi Nakamoto, Ripple can be said to be the beginning. Very early. Ripple is the world's first open payment network. Through this payment network, you can transfer any currency, including US dollars, euros, RMB, Japanese yen or Bitcoin. It is simple, easy and fast, and the transaction is confirmed within a few seconds. Complete, the transaction fees are almost zero, and there are no so-called inter-bank, long-distance and cross-border payment fees. Ripple is an open source peer-to-peer payment network that allows you to easily, cheaply and securely transfer your money to anyone on the Internet, no matter where he is in the world. Because Ripple is a p2p software, there is no manipulation and anyone can create a ripple account.
3.LINK
LINK has a market value of US$6.537 billion, a total circulation of 350 million, and a 24-hour transaction volume of US$2.027 billion.
LINK is an ERC20 standardized token based on the Ethereum blockchain, used to pay Chainlink node operators to retrieve data from off-chain data, format data into a blockchain-readable format, and perform off-chain computing and guaranteed uptime. Chainlink tokens are used as part of running nodes to protect against bad actors.
4.BSV-Bitcoin SV
Bitcoin SV has a market value of US$3.901 billion, a total circulation of 18.2716 million, and a 24-hour transaction volume of US$1.227 billion.
The "SV" in BSV (Bitcoin Satoshi Vision) is the abbreviation of Satoshi Vision (Satoshi Vision), which aims to realize the original vision of large-scale on-chain expansion and become a global peer-to-peerPoint electronic cash and value data transmission network. BCHSV, which will become the alternative chain in the hard fork. His direction was supported by Craig Wright. The BCHSV chain will use and follow the original specifications outlined by Satoshi Nakamoto in the Bitcoin white paper, hence the name SV or "Satoshi Vision." As evidenced by the controversial hard fork, the only practical difference between BCHSV and BCHABC is that SV will have a larger block size for the network, at 128MB.
5.LTC-Litecoin
The market value of Litecoin is US$3.655 billion, the total circulation is 63.997 million, and the 24-hour transaction volume is US$1.783 billion.
Litecoin, also known as Latiao, first evolved from the code of Bitcoin. It mainly improved the speed of block confirmation. It was also a powerful tool in the currency circle. Its market value once entered the top five in the currency circle. However, few people are still using Litecoin to make bricks. After all, erc20’s USDT is more convenient. There is even Tron-based USDT with almost no handling fees and faster confirmation.
Full text introduction On August 13, the FBI announced that it had intercepted "the largest cryptocurrency in history" related to the Palestinian Islamic Resistance Movement-Hamas, which also made the term cryptocurrency enter the mainstream In people’s eyes, most people have heard of the term cryptocurrency because of Bitcoin, but they know nothing about the meaning of cryptocurrency
6. ADA-ADA Coin
ADA Coin market value 35.7 billion US dollars, the total circulation volume is 25.927 billion US dollars, and the 24-hour transaction volume is 253 million US dollars.
ADA, known as ADA in Chinese, is the product of the Cardano project. The Cardano project was launched in 2015. The name comes from the 16th-century Italian mathematician Gerolamo Cardano. Cardano is a doctor, astrologer, philosopher and gambler. He used astrology to predict the day of his death and is said to have committed suicide on the same day. Ada is named after the 19th-century British aristocrat Ada Levea, who is known as the first programmer in human history.
7.BNB-Binance Coin
Binance Coin has a market value of US$3.465 billion, a total circulation of 149 million, and a 24-hour transaction volume of US$490 million.
BNB is the token of the Binance platform, with a total amount of 200 million. Through long-term holding, you can obtain dividends from the growth of the platform, or it can also be used for discounts or exemptions on handling fees in the short term. At the same time, the platform will regularly conduct BNB A certain amount of repurchases will support the continued rise in currency prices. At present, it seems that BNB is relatively successful. The currency price trend has always outperformed the mainstream. It was also the first currency to hit new highs in the IEO bull market last year. The platform pioneered the IEO. The currency model is still being imitated by many platforms.
8.EOS-Yozi Coin
The market value of Yuzu Coin is US$3.155 billion, the total circulation volume is 934 million US dollars, and the 24-hour transaction volume is US$2.927 billion.
EOS is an operating system-like blockchain architecture platform developed under the leadership of blockchain wizard BM (Daniel Larimer), aiming to achieve performance expansion of distributed applications. EOS provides accounts, authentication, databases, asynchronous communication, and program scheduling on hundreds of CPUs or clusters. The final form of this technology is a blockchain architecture that can support millions of transactions per second without paying usage fees for ordinary users.
9.
Tezos is a self-healing blockchain that can upgrade itself over time. Stakeholders can vote on amendments to the agreement and are not limited to any elements of consensus on the proposal. Just like Ethereum, Tezos supports smart contracts and provides a platform for others to build decentralized applications (Dapps) on top of it. It is characterized by supporting smart contracts, having its own smart contract language, and for the first time proposing code-made transactions and network consensus mechanisms that are mathematically proven to solve the current thorny network upgrade and fork problem.
10.
Stellar is a new payment system similar to Ripple recently launched by Mt-Gox and McCaleb, the original founder of Ripple. Joyce King, executive director of the Stellar Development Foundation, said Stellar will serve as a bridge between fiat currencies and digital currencies, which is key for digital currencies to be adopted by mainstream users. This new platform is a decentralized gateway for transfers between digital currencies and fiat currencies.
Through the above introduction, I believe everyone has an understanding of the 100x coin. The most basic feature of the 100x coin is the low issuance price. After all, only when the issuance price is low, the probability of the price increasing a hundred times in the future will be relatively high, but no matter which one you choose When investing in currencies, the editors of the currency circle would like to remind investors that they must have a certain understanding of the trend and market of currencies, so that investors will not choose unreliable currencies. If you want to know more relevant knowledge, you can follow the currency circle. The editor of the currency circle will continue to update relevant reports in the future!
This site’s statement: The content of this article comes from the currency circle. If there is any infringement, please contact us and we will deal with it promptly.
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