Development of blockchain reputation platform
blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies. Blockchain is an important concept of bitcoin. It is essentially a decentralized database. At the same time, as the underlying technology of bitcoin, it is a series of data blocks generated by using cryptographic methods. Each data block contains a batch of information about bitcoin network transactions, Used to verify the validity of its information (anti-counterfeiting) and generate the next block
if such technology wants to be put into application, the biggest problem is the "Impossible Triangle problem"
that is, scalability, decentralization and security cannot be achieved at the same time, and only two of them can be achieved
most of the existing public chain projects in the market are difficult to put into use on a large scale
how many stages is the blockchain divided into&# 8194;
there are 1.0, 2.0 and 3.0 blockchains, and the digital currency dominated by bitcoin is blockchain 1.0; The smart contract platform centered on Ethernet is blockchain 2.0; The application scenario and platform of high-performance blockchain is blockchain 3.0. The simple conclusion is that 1.0 is mining and currency speculation; 2.0 is ICO and currency; 3.0 is the implementation of the project. The real landing projects are still far away from us. Most projects take stage 2.0 as the entry point of instry solutions. The combination of blockchain and instry enables blockchain to be applied in a certain instry&# 8194;
how to be a qualified blockchain project&# 8194; potential blockchain projects have different evaluation standards and different periods. The main reason for the outbreak of digital currency in 2017 is the promotion of ICO and Ethernet smart contract. In the past, projects that could meet these two conditions were considered good. Now, the measurement standard of projects is: & (1) There are application scenarios. The project itself has team, goal and real scene application. Because some teams or enterprises are not suitable for blockchain applications, it is a rather crude way to establish a connection between them&# 8194;&# 8194;&# 8194;&# 8194;&# 8194; (2) the multi parties involved in the blockchain can generate transactions (3) blockchain has a large number of communities and users. In conclusion, good blockchain projects can be applied refer to the case of Henan keoo Information Technology Co., Ltd
as for platform development, blockchain technology is not mature in China, but many enterprises have invested in research and development. For the specific development scheme of virtual currency platform, you can refer to Yingtang Zhongchuang, which has done more in the application and development of blockchain.
Python learning path
the first stage is Python foundation and Linux database. This is the beginning stage of python, and also an important stage to help students lay a good foundation. You need to master Python basic syntax rules and variables, logic control, built-in data structure, file operation, advanced functions, moles, common standard library moles, functions, exception handling, MySQL use, coroutine and other knowledge points
learning objectives: master basic Python syntax and basic programming ability; Master the basic operation commands of Linux, master the advanced content of MySQL, and complete the projects of bank ATM system, English Chinese dictionary, lyrics parser, etc
the second stage is full web stack. In this part, you need to master HTML, CSS, JavaScript, jQuery, bootstrap, web development foundation, Vue, flag views, flag template, database operation, flag configuration and other knowledge
learning objectives: master the web front-end technology content, master the web back-end framework, skillfully use flash, tornado, Django, and complete the data monitoring background project
The third stage is data analysis + artificial intelligence. This part is mainly to learn the knowledge points related to crawler. You need to master the knowledge of data capture, data extraction, data storage, crawler concurrency, dynamic web page capture, scrapy framework, distributed crawler, crawler attack and defense, data structure, algorithm, etclearning objective: to master crawler, data acquisition, data organization and algorithm advanced and artificial intelligence technology. It can complete crawler attack and defense, image mosaic, movie recommendation system, earthquake prediction, artificial intelligence project and other stage projects
The fourth stage is advanced. This is a python advanced knowledge point. You need to learn project development process, deployment, high concurrency, performance tuning, go language foundation, blockchain introction, etclearning objectives: master the technology of automatic operation and maintenance and blockchain development, and complete the automatic operation and maintenance projects, blockchain and other projects
according to the python learning roadmap above, you can basically become a qualified Python development engineer. Of course, if you want to quickly become the elite talents of enterprises, you need good teachers to guide you, and you need more projects to accumulate practical experience
self learning itself is very difficult, and learning step by step is sure to be comprehensive and solid. If you want to learn which part, you can skip the targeted learning mole you don't need for the time being, and watch more different videos. Systematic learning usually takes 5-6 months
Blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies
IPFs is a new hypermedia transport protocol based on content addressing, distributed and peer-to-peer
From the above description, they have many similar characteristics. However, IPFs is not a blockchain project, and it does not issue money, so it can not realize the value circulation to the third party's trust
IPFs (inter planar file system) is a kind of hypermedia transmission protocol based on content addressing, versioning and peer-to-peer, which integrates P2P network technology, BitTorrent transmission technology, GIT version control, self certified file system and other technologies, and is a new generation of communication protocol benchmarked with HTTP
filecoin is a decentralized storage network, which is the incentive layer of IPFs. Filecoin puts forward an incentive mechanism, that is, to use the storage proof to mine, so as to reward the storage miners to provide better quality storage services, and at the same time, to reward the miners with better incentive network or better response performance in the retrieval market
IPFs Chinese community focuses on the field of IPFs vertically, and strives to provide objective and third-party IPFs, filecoin, mining and other latest information, so as to jointly promote the development of IPFs related applications and establish a good IPFs ecosystem
The operation oflava blockchain is based on lava Firestone, a consensus mechanism based on proof of capacity (POC). Lava blockchain condenses strong consensus value from global storage space and becomes a trust infrastructure for distributed social cooperation. But lava does not stop here: benefiting from the increasingly mature cross chain communication technology and the growing scale of content addressable distributed storage network, lava can realize the feedback of trust value to decentralized storage applications that can realize social value< br />