Bitcoin trading PHP source code

1. Sorry
you can't modify this
because this source code records the development process of bitcoin along the way, the problems encountered in the mining process and the mining difficulty
there is open source code to mine, so no one can change it

2. As a reminder, bitcoin has been exploited to the end. The principle of bitcoin program determines that the longer the generation interval is, the longer the time to generate a bitcoin may have exceeded its value. After all, we have to consider the power consumption and time of the mining computer. Although bitcoin is still very popular, it's a bit late to start now, and it's unlikely to make money.

3. Open source software, see: https://github.com/bitcoin/bitcoin/

4. In recent years, blockchain digital assets represented by bitcoin have become popular all over the world. Financial institutions, technology companies, investment companies and other participants at home and abroad have invested a lot of human, material and technical resources in the research, development, design, testing and promotion of blockchain digital assets. In order to realize the main characteristics of "four can and three can't" of blockchain digital assets, we can build the core technology system of digital assets by relying on 11 technologies of security technology, transaction technology and trusted guarantee technology. First of all, security technology is used to ensure the fluidity, storability, controllable anonymity, unforgeability, non repeatable transaction and non repudiation of blockchain digital assets. digital currency security technology mainly includes basic security technology, data security technology and transaction security technology. Basic security technology includes encryption and decryption technology and security chip technology. Encryption and decryption technology is mainly used in currency generation, secret transmission, identity verification and other aspects of digital assets. The establishment of a perfect encryption and decryption algorithm system is the core and foundation of the digital assets system, which needs to be customized and designed by the national password management organization. Security chip technology is mainly divided into terminal security mole technology and smart card chip technology. Digital assets can be traded in the form of mobile terminal based on terminal security mole. As the carrier of secure storage and encryption and decryption operation, terminal security mole can provide effective basic security protection for digital assets. Digital asset system trading platform blockchain technology research and development of data security technology, including data security transmission technology and secure storage technology. Data security transmission technology transmits digital asset information through ciphertext + MAC / ciphertext + hash to ensure the confidentiality, security and non tamperability of data information; Data security storage technology stores digital currency information by means of encryption storage, access control, security monitoring, etc., to ensure the integrity, confidentiality and controllability of data information
transaction security technology includes anonymous technology, identity authentication technology, anti plicate transaction technology and anti-counterfeiting technology. Anonymity technology realizes controllable anonymity of digital assets through blind signature (including blind parameter signature, weak blind signature, strong blind signature, etc.) and zero knowledge proof; The identity authentication technology verifies the user's identity through the authentication center to ensure the validity of the digital asset trader's identity; The anti plicate transaction technology ensures that digital assets are not reused by means of digital signature, serial number and time stamp; Anti counterfeiting technology ensures the authenticity of digital assets and transactions by means of encryption and decryption, digital signature and identity authentication. Secondly, the online transaction and offline transaction of digital assets are realized by transaction technology. Digital asset trading technology mainly includes online trading technology and offline trading technology. As a legal currency, digital assets should not be rejected by any unit or indivial, and can be traded online or offline. Online transaction technology realizes online transaction of digital assets through online device interaction technology, online data transmission technology and online transaction processing; The off-line transaction technology realizes the off-line transaction of digital assets through the off-line device interaction technology, off-line data transmission technology and off-line transaction processing technology. Finally, trusted guarantee technology is used to provide a safe and reliable application environment for the issuance, circulation and transaction of digital assets in blockchain. Digital asset trustworthiness assurance technology mainly refers to trusted service management technology. Based on trusted service management platform (TSM), it ensures the security and trustworthiness of digital asset security mole and application data, and provides security chip (SE) and application life cycle management function for digital asset participants. Trusted service management technology can provide application registration, application download, security authentication, authentication management, security evaluation, trusted loading and other services for digital assets, which can effectively ensure the security and credibility of digital assets system
what is blockchain? Blockchain technology, also known as distributed ledger technology, is an Internet database technology, which is characterized by decentralization, openness and transparency, so that everyone can participate in database records. Blockchain technology development blockchain technology development what is a blockchain system? Blockchain system is a database system with integrity. The data written into the system will be automatically copied to the nodes of the blockchain, which can achieve transactional data preservation, support the management and development of databases in various instries, and be proced in combination with various needs. 294.497 billion US dollars, or 2.60%. This week, five new projects entered the top 100, namely FST, ZB, Wix, wax and MXM. On August 11, the price of bitcoin was $11523.58, up 3.20% from last week, and Ethereum was $216.09, down 3.86% from last week. The 24-hour turnover of this week increased by 2.63% over the same period last week; Among the top 100 projects, the total market value and average market value of currency projects increased significantly, and the classification composition of global blockchain assets top 100 projects was stable.

5. And this: https://github.com/bitcoin/bitcoin

6. Bitcoin is a kind of virtual currency in the form of P2P. Point to point transmission means a decentralized payment system. Bitcoin does not rely on specific currency institutions to issue. It is generated through a large number of calculations of specific algorithms. Bitcoin economy uses a distributed database composed of many nodes in the whole
P2P network to confirm and record all transactions
bitcoin trading is carried out through bitcoin trading platform. At present, the better bitcoin trading platforms in China are okcoin, bitcoin China, fire coin network, 796 trading network, etc. the capital of each company is different. Okcoin is based on technology, and fire coin network pays more attention to user experience, But in terms of professionalism, okcoin is relatively good.

7. It's impossible

8. This is a more professional thing. It's better to find a more professional person to solve it, but generally those who know the technology can solve it
there are also many virtual currency trading platforms in China. It is necessary to choose large platforms to invest in virtual currency, and it is better not to play on some small platforms, as they may make money and run away at any time
the major counterfeit currency platforms in China include Xigu, bitage, jucoin, etc. There are five well-known bitcoin trading platforms in China.

9.

In addition to the complete implementation of bitcoin's core protocol, bitcoin node software also includes an optional but important function mole -- Wallet:

you can regard the wallet as a safe to store all your keys and addresses, and also encapsulate many technical concepts and details of bitcoin, So that it can be understood and accepted by people other than geeks. Therefore, bitcoin enables node wallet by default. If you want to disable the wallet function, for example, you can set the disablewallet option in the configuration file:

disablewallet = 1

the wallet mole will track all address related transactions managed by it, so it can update the balance information of the wallet in time. This function is very important because there is no concept of account in bitcoin. Bitcoin is e-cash scattered among transactions. If there is no wallet to help track transactions related to our address, it is difficult to figure out how many bitcoins we hold in total

Many RPC calls provided by

nodes are implemented by wallet mole. For example, when we call the getnewaddress command, the wallet mole generates the key and address and automatically adds them to the wallet, so its related transactions will automatically affect the balance of the wallet. Similarly, when we call getbalance, the wallet mole will collect the bitcoin on all addresses and return the total amount

the above content is extracted from: bitcoin development course