Ethereum node service

1. blockchain pet game

ether clown is a blockchain pet cultivation game launched by IAC advertising platform, which combines with pet entertainment to make money easily, and at the same time combines with blockchain technology to ensure the interests of players. Experience the fun of raising, working, earning and reselling, beautiful pictures, rich experience and happy income! Make a real game, let players get a more comfortable experience, with the game this well-known proct form, the human into the era of full intelligence
ether clown is a digital collection, a non-standard digital currency (ether currency, etc.), which is based on blockchain and can never be changed. It can be verified by a third-party platform to clearly query the relevant data information! Cryptoclow is a digital and collectable blockchain game based on Ethereum blockchain. Using ether money to adopt clowns can not only resell them, but also use them to breed a new generation of clowns with strange shapes. It can also cultivate them to work and earn money, making the digital collection of clowns more sustainable and playable# Ethereum clown#

2. What is blockchain service

blockchain service refers to the use of data generated by blockchain to provide a series of operation services such as search query, task submission, etc. based on blockchain

at present, in the field of blockchain, only the block browsers of major public chains can be called blockchain services, as well as some public chain derivative applications: Certificate Deposit Factom, digital identity uport, etc

these applications all have one characteristic, based on the existing public chain, play and strengthen the existing functions of the public chain, so that the public chain can provide better blockchain services for everyone

in other words, if we want to develop a blockchain service-oriented application, we generally mean to develop an application on the public chain



how to build blockchain service

blockchain service refers to the development of public chain applications according to the infrastructure provided by the public chain, and the operation of applications to provide services

for example, smart contract is used to develop public chain applications on Ethereum and run on Ethereum nodes to provide effective services to the public. On bitcoin, we can provide some deposit services with the limited functions of bitcoin

blockchain developers should establish effective channels to collect current blockchain deficiencies and make targeted improvements. This process is called improvement proposals: bitcoin isolation witness (composed of a series of BIPS) is a good example

application layer developers can feed back the problems found in the process of using IP to developers, forming a virtuous circle

and the IP process should not be limited to the technical field, but should go deep into the business layer



blockchain services. JPG

a prediction of public chain infrastructure
most countries in the world support bitcoin payment, but there are still a large number of businesses who do not know how to build bitcoin server wallets. They need to spend a lot of effort to study the deployment and even optimization of public chain wallets, but they do not even have enough technicians to deploy and configure them. On the other hand, leveldb, the official version of bitcoin / Ethereum / metaworld wallet, is actually very unfriendly to the server and is not suitable for the server application at all

a large technology platform should focus on optimizing all kinds of wallets and turning them into a stable and scalable version of the server, which is far more useful than providing blockchain technology stack

it is hoped that in the near future there will be a cloud computing platform to provide bitcoin / Ethereum / Yuanjie and other public chain full node services, and users only need to pay to use them

the next development direction of the public chain in the future is definitely light wallet (mobile terminal) technology, offline payment technology, public chain application development, cloud computing platform to provide simple and easy-to-use public chain full node instance service, exclusive full node service that every ordinary person can buy, using light payment / offline payment and other means to separate the master and public private key pairs, The light wallet provides transaction signature, and the whole node is only responsible for verifying and sending transactions, so as to achieve a perfect user level proct.

3. Note that Ethereum is 2.0 now. As of 13:57 on the 4th, the current deposit contract address of Ethereum 2.0 has received 1000098eth, and 31252 addresses have completed the mortgage of 32eth. With the increasing number of mortgage, the annual yield of mortgage will graally decrease. After the mortgage amount reaches 1 million eth, the current annualized yield is about 15.7%. Zhongyuan, a well-known exchange, has taken the lead in opening the mining channel of eth2.0 verification node, and then launched qeth. Users can invest their own eth in verification node mining and exchange qeth to obtain liquidity, and then participate in mining. Compared with the disadvantages of eth2.0, qeth has too many things: the liquidity is guaranteed, the user does not have to bear the technical cost, the threshold of participation does not need 32 eth as low as 0.1eth, the nodes are maintained by the platform, and the income is distributed according to eth2.0.

4. Yes, but it is better to use overseas servers. In addition, the server configuration should be medium or above.

5. Generally speaking, undefined index is the exact writing problem in the process of writing. Notice generally prompts for errors that are not directly related to the execution of code, but don't forget that notice sometimes returns some rendant error information

6. How many account addresses can an Ethereum node have at most
A: generally, there is only one account address, otherwise there will be an error! Blockchain itself is unique. If there are multiple account addresses on one node, it violates the fundamental principle of blockchain!

7. I plan to start a series to talk about architecture. My previous experience is mainly in the area of Internet architecture. Recently, I am sorting out and analyzing the architecture of bitcoin, Ethereum and EOS, so I am going to write a series of articles to talk about the understanding of Internet architecture and blockchain architecture. It will be divided into four articles: 1. Internet proct architecture, 2. Bitcoin architecture analysis, 3. Ethereum architecture analysis, 4. EOS architecture analysis
there is no central server in Ethereum. Instead, there are many equal nodes connected by P2P protocol, which store all the data in many nodes. When a user initiates a transaction, the transaction will be broadcast out through P2P protocol. The miner node verifies, packages and further broadcasts the transaction to the whole network. After confirmation in the blockchain, the operation is considered to be unchangeable
in the articles on blockchain on the Internet, the two words distributed and decentralized are mentioned, sometimes slightly different, sometimes mixed. The author thinks that if we want to distinguish accurately, the distributed system emphasizes that multiple components work together by sending messages, and the decentralized system emphasizes that there is no central node to control the operation of the whole system. Therefore, we think that Ethereum is both decentralized and distributed, or running a decentralized program on a distributed platform.

8. There is no problem at all, but relatively speaking, we must buy some reliable ones, because we must pay attention to them.

9. < UL >

try to set your TCP / IP protocol to automatic acquisition state. Method: right click Network Neighborhood - properties - right click & quot; Local connection & quot; Properties - double click & quot; Internet Protocol TCP / IP & quot- IPX is the bottom layer protocol of NetWare. It is only responsible for the movement of data in the network. It does not guarantee the success of data transmission, nor does it provide error correction