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A. What blockchain traceability projects are there in Sichuan?

Tracing is one of the important application scenarios of blockchain technology. For consumers, food safety is a major matter related to life and health, so we now have higher and higher requirements for food quality. Since blockchain technology is non-tamperable, it can record the entire life cycle of food, making us feel more confident about what we eat.

So what blockchain technology traceability platforms are there in Chengdu? The editor has collected information from many sources and collected the blockchain traceability platforms in Chengdu as follows:

Lianbo Technology’s XTrace traceability

According to the official website of Lianbo Technology, this product has Botai quality control and traceability reached cooperation. This project is a quality traceability system initiated by the Provincial Food Quality and Safety Collaborative Innovation Center of Xihua University. Lianbo Technology has added the blockchain bottom layer to its original traceability system, making all traceability information non-tamperable and easy to locate. , which improves the reliability and credibility of the traceability system. At present, the traceability system has been connected to famous upstream and downstream brands such as Wudongfeng, Dancheng, and Jixuan.

China Cyber ​​Security’s Xinlian Zhenpin

China Cybersecurity launched the “Xinlianzhen” product together with insurance companies, testing companies, e-commerce platforms and other institutions. "Product" has been implemented in agricultural products such as Chengdu kiwi fruit and tangerine, providing reliable traceability services for high-quality agricultural products.

Fertilizer traceability in Sichuan Rundi

Sichuan Rundi Agriculture Co., Ltd.’s application of blockchain traceability is mainly in pesticides and fertilizers. Using correct information sources or on-site sensors, now The non-central collection and processing of information on land production links has been realized.

Sichuan Zhenxuan Traceability

Sichuan Zhenxuan Traceability makes full use of Internet technology and the method of integrating ecological agriculture to break the traditional agricultural sales by building an online product base. concept, consumers can have a comprehensive understanding of the entire production process.

So these are probably the blockchain traceability platforms in Chengdu. I believe that blockchain traceability can develop better and better!

B. Which companies can develop blockchain virtual currency malls_Is blockchain virtual currency transactions legal?

Currently, the applications of blockchain are mainly in finance, medical, Forensic proofs, smart contracts, sharing economy, digital assets and other fields, and the development of virtual currency malls can be said to be the foundation of blockchain technology. At present, not many malls are developed using blockchain technology. To develop a virtual currency mall based on blockchain technology, you can refer to the plan of Yingtang Zhongchuang, which is the one where blockchain technology is widely used. A development company.

C. What does Chengdu Lianan do?

There are three ways to input audio, including audio collection following the video source, audio input and output capture and default device collection.

1. Follow the video source method

Following the video source refers to the video source signal (such as textsoftware, stream signal, blackmagic capture card) with embedded audio signals. After adding these signal sources, the audio signals will be automatically recognized by OBS and captured as the input audio signal source.

1. Audio and video files: When we add a "source" to a scene and select the "media source" method or "VLC video source", the audio signal will be automatically captured and displayed by the system. In "Mixer".

2. Stream signals: If we add stream signals such as rtmp and rtsp, when adding these stream signals, if the audio signal is embedded in the stream, the audio will be automatically captured by OBS and processed. Na is in the "mixer".

3.blackmagic capture card capture: This is a special case of capture card capture. After installing the latest blackmagic capture card driver, when adding a source in the "Source" window, there will be a "blackmagic device" option, as shown below:

We also recommend blackmagic capture cards Adding audio and video sources in this way can avoid the phenomenon of audio and video being out of sync. According to the test, if you add a blackmagic capture card using the method of "video capture device" + "audio input capture", it is easy for the sound and picture to be out of sync.

2. Audio input and output capture

Audio input and output capture means that OBS can input and output the audio signals of the device, and use these input or output audio signals as the input signals of OBS. These devices generally include the host's built-in speakers and microphones, external speakers and microphones, external sound cards, external video capture cards (embedded audio), etc.

In order to synchronize audio and video, external video capture cards generally add timestamps to the capture card. For such cards, be sure to check "Use device timestamp", otherwise an error message will appear. The audio and video are out of sync.

Audio output capture is actually equivalent to using the output signal as the input source of OBS. This is used in some special occasions, such as using audio virtual output.

3. Default device collection

Enter the Settings->Audio menu of OBS to set the default audio device.

The signal source of the audio default device is the same as the second audio input and output device. The biggest differences are two points:

1. The number of supports is different

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There is no limit to the number of audio input and output devices added, but when adding audio sources through the default acquisition method, 2 output devices can be added and 3 input devices can be added.

2. The audio display position is different

UsedThe audio source added by the default device collection method has nothing to do with the scene. When switching scenes, the audio will not be cut off. However, the audio source added using the "Follow Video Source" and "Audio Input and Output Capture" methods is related to a certain It is bundled with a specific scene. After the scene is switched, the audio source will be cut off. Therefore, when there are multiple audio signals, we need to plan how to add audio in advance to avoid accidents.

Since the default device collection method supports a limited number of audio sources, if you need to support more channels during work, you can copy several audio sources in multiple scenes

D. Which companies are relatively mature in developing blockchain technology

Shandong Bianke Information Technology Co., Ltd. is a software development company with excellent technology.

[Blockchain Exchange]

Blockchain technology application research and development, exchange wallet system app development Blockchain technology is actually a new type of Internet. Why is it said to be a subversion of the Internet? Because the Internet solves the problem of information transmission, and the blockchain solves the problem of value transmission. Yuanzhongrui Blockchain System Development Blockchain has many value transfers, such as distributed ledgers, decentralized trust, smart contracts, etc. So what kind of society will it build in the future?

The answer is: a distributed business and self-disciplined society. The first characteristic of blockchain is decentralization; no third-party intervention is required to realize person-to-person, point-to-point transactions and interactions.

Second, the information cannot be tampered with; once the data information is written into the block, it cannot be changed or revoked.

Third, openness and transparency; within a very short period of time, the block information will be copied to all blocks in the network to achieve data synchronization across the entire network, and each node can trace back all past transactions of both parties. information.

Fourth, collective maintenance; in the entire blockchain network, all roles jointly maintain the reliability and security of the entire blockchain information.

Fifth, reliable database; only by mastering 51% of the nodes in the entire system can the blockchain information be tampered with. This is obviously impossible because there are many participants in the entire system and so many nodes are mastered. The cost is extremely high and it is impossible to achieve.

The characteristics of blockchain bring great opportunities to the financial industry. Using it to transform internal application scenarios in the industry can bring three main benefits:

< P>1) Reduce costs: Communication costs: Centralized trading markets generally require the participation and coordination of multiple parties such as central settlement systems, securities companies, exchanges, and banks. The coordination costs are very high. Through the signature encryption next to the blockchain source, etc. Technology allows information to be shared and reduces coordination costs; operating costs: reducing labor and paper vouchers, improving automation through smart contracts, and centralized coordination also bring very high operating costs.

2) Improving efficiency: The settlement cycle is very fast. When the financial transactions realized through blockchain technology are confirmed, the actual process is to combine clearing, settlement and auditing.The process of calculation. The openness, transparency and non-tamperability of the blockchain can save traces of operations, allow supervision records and audit traces to be retained, and facilitate supervision and auditing.

3) Reduce risks: The transaction confirmation on the chain completes the clearing and calculation, greatly reducing transaction risks. Blockchain technology application research and development, exchange wallet system app development

E. Sichuan Is Ferry Blockchain Technology Co., Ltd. legal?

It is legal. Sichuan Ferry Blockchain Technology Co., Ltd. is affiliated to Hujia Venture Capital Management Co., Ltd. and is a company focusing on the research and development of blockchain technology. The company was established on June 10, 2019. The company's operating status is continuing. Apply for a three-in-one business license from the industrial and commercial department where the company is located, and obtain a legal business license.

F. Have you avoided all the 5 ways to get money?

Have you avoided all the 5 ways to get money?

The first pit: prepaid recharge

How about "Big discount for new store opening, 20% off for recharge of 1,000, 50% off for recharge of 5,000, 10,000 for fracture..." How about it, doesn't it sound great? Familiar? Yes, this pitfall is: prepaid recharge. Among the top ten hot spots for consumer rights protection in 2017 and 2018 by the China Consumer Association, complaints about prepaid recharges have long been in the top five, and are particularly prevalent in beauty salons and gyms.

The second pit: consumer loans

In March 2019, Suzhou Lezhan Apartment was acquired by Bee Village Network Technology Company due to the break in the "rental loan" capital chain; in July 2019 , the capital chain of Nanjing Yuheng Apartment was broken; in August 2019, Lejia Apartment collapsed suddenly. In October 2019, a large number of Web English stores were closed, employees were dismissed, student tuition fees were not refundable, and rumors of "running away" and "bankruptcy" were rampant.

If the gym is simply a prepaid stored value, even if consumers cannot recover their losses, they can bite the bullet and regard it as a lesson learned. But those who took out loans for consumption were really in tears: Not only could they not attend classes, they could not live in a house, they had not got their money back, and they had to repay the loans on time. If you are unable to repay the loan, it will not only affect your credit record, but you may also encounter violent collection, making it even more difficult.

The third pit: speculating on shoes, speculating on blind boxes, speculating on Lo skirts

In July 2019, a post-90s guy named "Liu Biscuit" who entered the field of speculating on shoes was found guilty of "speculating". "Shoes" ran away with tens of millions of dollars in debt; in September 2019, the highest premium for blind boxes was nearly 40 times, and XX people spent 700,000 yuan a year to buy blind boxes; in October 2019, the price of LO skirts increased from 1,000 yuan to 30,000 yuan, compared with The profits of "shoe speculation" are even more terrifying...

The fourth pit: air currency, blockchain concept

First run in 2019: digital wallet MoreToken takes investors before the Spring Festival More than one billion funds "ran away". On June 10, 2019, the official website of the cryptocurrency financial wallet project TokenStore was inaccessible and the APP wallet could not be used. Billions of dollars in funding""Disappeared from the world." In September 2019, Walden Block Dog, which mainly focused on blockchain pets, completely collapsed. The platform made 23 billion in money and ran away.

The fifth pit: The bank also brought Sun to step on the thunder< /p>

In June 2019, China Merchants Bank sold the "Qianduan" APP on an agency basis and paid 1.4 billion overdue. China Merchants Bank, known as the "King of Retail", always gives people the impression of being safe and sound. But no one has Thinking about it, such a "low-yield" investment product with less than 6% was promoted and endorsed by China Merchants Bank, which turned out to be shocking.

In fact, since 2016, China Merchants Bank has Advertisements began to hang in the lobby, and the staff promoted performance tasks vigorously, and even helped customers download software step by step. Investors all thought that what they purchased was financial management from China Merchants Bank, and even if they did not protect their capital, they would not suffer too much loss, right? But They didn’t expect that Qianduan, which they registered and used, was actually a P2P platform. P2P’s failure and sudden thunderstorms are nothing new. Until now, China Merchants Bank and Qianduan are still pushing each other, and all the projects they have invested in are The payment is delayed, and the payment deadline cannot be clarified. The overdue amount reaches 1.4 billion yuan, involving 9,000 people.

G. Which blockchain company development platform is the best

Bubi ( Beijing) Network Technology Co., Ltd. ranks first in blockchain technology.
Blockchain technology is engaged in the design and research and development of blockchain application products (DAPP), researching blockchain protocols, smart contracts, authority management, Operating mechanism and underlying implementation, etc.;
Track changes in the underlying technology of the blockchain, continuously learn and propose optimized solutions; solve various online problems, and complete other R&D project goals within the organization;.
Education Required ratio: 81.8% for bachelor's degree, 6.4% for any education, 5.9% for junior college, 5.6% for master's degree, 0.22% for doctorate, and 0.07% for technical secondary school. Which one requires the most experience? 3-5 years account for 41.1%, 5 years -10 years accounted for 21.4%, 1-3 years accounted for 19.0%, no experience limit accounted for 14.3%, fresh graduates accounted for 2.4%, and more than 10 years accounted for 1.9%

H. Where to develop blockchain in Chengdu The company is relatively reliable

I personally think that there is no reliable technology in terms of blockchain development. It just depends on what kind of R&D technology team you choose. Even if you choose a better R&D technology team , it may not be able to realize the blockchain technology you require. Different industries and fields have different technical indicators, not to mention this complex new technology. Another point is to make the R&D technical team agree with the industry thinking you need to apply, otherwise the development It is impossible for the products that come out to meet your requirements. We focus on the implementation of the professional field of blockchain technology. The project has been in progress for more than a year and has not been successful. The difficulty is that overturning the traditional model will involve a large chain of interests, so it must It is a process that slowly penetrates.

It depends on what kind of development you choose to do

Whether the R&D team agrees with your thinking

Whether there is any prospect for implementation? Is the direction beautiful?

I. Who is the founder of AtoS and where is its headquarters?

AtoS (ATOS) is a decentralized financial processing solution based on blockchain. Its goal is to build a global free currency circulation system through blockchain and distributed ledger technology. This system allows each user to conduct international financial transactions freely. Atomic Link has a five-layer architecture: data layer, collection layer, consensus layer, contract layer, and application layer. The data layer uses distributed ledger technology to realize currency issuance, payment, exchange and other operations; the network layer uses peer-to-peer network implemented by P2P network protocol; the consensus layer is based on POD and BFT consensus algorithms; the contract layer uses genesis contracts and multi-language Smart contracts carry out the issuance and management of currencies, optimize the virtual machine, support Turing Complete, and use an introspection mechanism to avoid deadlocks in Turing Complete; the application layer is friendly to many types of terminals, making it convenient for developers to Develop applications based on Atomic Chain. Through a decentralized autonomous model, we will build a diversified financial circulation network to enhance the liquidity, security, and universality of currency. As a currency unit in the win-win ecosystem, ATOS aims to become a universal currency for global international transactions. As an open system, Atomic Chain allows users to develop various independent DAPPs based on the Atomic Chain API and create personalized application scenarios.

There will be new breakthroughs in Atomic Chain technology. Since Bitcoin's oligarchic mining pools hold more than 51% of the computing power, there is a risk of attacks from the Bitcoin network, so it is difficult for Bitcoin to become a country's foreign exchange reserve. Atomic Link incorporates a more decentralized POD algorithm. The so-called POD algorithm is the algorithm first named by our Atomic Link. This algorithm is implemented on IOTA (the top 10 cryptocurrency), but it is not officially named. It is Power The abbreviation of Of Device. There is 0 handling fee for transactions, but you need to process two transactions for the entire network before trading. In this way, the more people we use, the more computing power we have, and the faster the transfer speed will be. Each user is a node, so our TPS has no upper limit, far exceeding Bitcoin's only 7TPS, Ethereum's only 15TPS, and EOS's million TPS... and there is 0 handling fee, no mining required. There are no mining pools, so why bother with the mining pool controlling 51% of the computing power of the entire network? It will always be highly decentralized. Using DAG (directed acyclic graph) can process a large amount of on-chain data in parallel, which can perfectly solve the problem of slow TPS of Bitcoin transaction speed