Blockchain data list
the relationship between blockchain and big data is not very big. The main purpose of big data is to manage massive data, and the core of blockchain is to achieve high security and high reliability of data without centralized intermediary accounting
therefore, blockchain and big data do not conflict with or replace each other. They are completely different solutions for data in different scenarios.
At present, there are few blockchain Unicorn companies, and the development of blockchain is still in its infancy, which needs a long-term development process
if you want to do blockchain development related technologies and problems, including customized development, you can communicate with each other< br />
The relevant certificates can be issued online for the data of blockchain storage and network forensics through easysaving. Through the record number on the certificate, the blockchain query can be concted directly through the official website of easysaving and relevant arbitration commission, including the preservation subject, preservation time stamp, Guangzhou Internet court evidence number, blockchain hash value and other relevant information
a method and device for writing business data to the blockchain system. Alibaba Group Holding Co., Ltd. is in trial; Cn107368259a
a method and device for business processing. Alibaba Group Holding Co., Ltd; Cn107341702a
a blockchain system, data storage method, and device, which is approved by Alibaba Group Holding Co., Ltd; Cn107018125a
a data storage method, a data query method and a device for Alibaba Group Holding Co., Ltd; Cn107862215a
an authentication method, a block chain based authentication data processing method and equipment are being examined by Alibaba Group Holding Co., Ltd; Cn107257340a
a method and device for business acceptance and consensus: Alibaba Group Holding Co., Ltd; Cn107395659a
a method and device for business verification in Alibaba Group Holding Co., Ltd; Cn107040585a
a method and device for communication between blockchain nodes. Alibaba Group Holding Co., Ltd; Cn107592292a
multi blockchain network data processing method, device and server, China Alibaba Group Holding Co., Ltd; Cn107453896a
a method and device for data storage and query based on blockchain, approved by Alibaba Group Holding Co., Ltd; Cn107239479a
et al
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. In fact, the original English version of bitcoin white paper [1] does not use the word blockchain, but uses the word chain of blocks. In the earliest Chinese translation of bitcoin white paper [2], chain of blocks was translated into blockchain. This is the earliest time when the Chinese word "blockchain" appeared.
Blockchain is a kind of chain data structure that combines data blocks in order according to the time sequence, and it can't be tampered and forged by cryptography. In a broad sense, blockchain technology is a new distributed infrastructure and computing paradigm, which uses blockchain data structure to verify and store data, uses distributed node consensus algorithm to generate and update data, uses cryptography to ensure the security of data transmission and access, and uses intelligent contract composed of automated script code to program and operate data< br />
In the 10th century, when Arabs and Portuguese sailed to the south of the equator in the 15th century, they noticed these two cloud like objects in the southern sky, which were called "Cape of good hope clouds". Portuguese navigator Magellan first described them accurately when he sailed around the world in 1521, and later named them after him. The big cloud is called the big Magellanic nebula, or LMC for short; The small cloud is called wheat cloud (SMC); Collectively known as Magellanic Cloud. In 1912, American astronomer Leavitt discovered the relationship between the circumference of the Cepheid variable of the wheat cloud. Herzpolon and Shapley then determined the distance of the wheat cloud, becoming the first confirmed extragalactic galaxy. The distance of big wheat cloud is 160000 light years, and that of wheat cloud is 190000 light years. They are 50000 light years apart in space. Large and small clouds are among the most recent galaxies, which enables us to analyze their member celestial bodies carefully. Therefore, they are important astronomical observation objects and important sources of galactic astrophysical data