2017年11月30日星期四

Doctor Wang Visit Zheshang Securities, Promote the development of Blockchain Technology & Application

浙商证券01
In November 23, the scientist chief Wang Maolu of Shuqin Tech was invited by Zheshang Securities, making the technical sharing for the topic of Blockchain technology & application in the financial field.
浙商证券02

Doctor Wang started from the beginning of the first application — Bitcoin, then analysed the  principle and value of such technology. As the underlying technology of Bitcoin, Blockchain is a distributed ledger that based on Internet, and “Blockchain” is just a name.

浙商证券03

Wang Maolu also introduced the Blockchain industry, combined with the policies and standards of China’s blockchain development, there has the following features:

  • Distributed
Due to the use of distributed computing and storage, there is no centralized hardware or management organization. The rights and obligations of any node are all equal, and all the data blocks in the system are maintained by the whole network nodes.
  • Openess
The system is open, besides the encrypted information of the both transaction parties, all data of the blockchain is open to everyone. Anyone can check the blockchain data and related application through the open interface, so the whole system information is highly transparent.
  • Self-governing
Blockchain uses the consensus specification and protocol based on a set of transparent algorithm, which makes all nodes can exchange data in the free and secure environment, then changing the person’s trust to the machine’ trust.
  • Immutability
Creating immutable ledgers is one of the main value propositions for blockchains. Any centralized database can be corrupted and generally requires trust in a third party to keep the information accurate. Blockchains like Bitcoin keep the ledger in a perpetual state of forward momentum because millions of dollars worth of hashing power confirm new transactions that are recorded. To change the history of Bitcoin’s ledger would require controlling at least 51% of the hashing power. As well, the further back one tries to go on the ledger, the more expensive the attack will be. 
  • Anonymity
All the exchange between the nodes should follow a fixed algorithm, so the counterparties can create trust without the public identity, which is helpful for the accumulation of credit.
浙商证券04

Finally, Wang Maolu showed the core value of Blockchain— the digitization of the trust relationship. With the characteristics of Blockchain, it can automatically performs the process without the third party, and then to solve the involved trust problems effectively.

Free Recordkeeping

Zhejiang Shuqin Technology Co., Ltd was founded on 2016, is a blockchain based R&D and application service provider. Core team started the research of cryptocurrency and non-currency blockchain applications since 2013, and have made certain effort on the aspects such as blockchain infrastructure, consensus algorithms, digital assets exchange, trustworthy electronic certificate, etc. Based on the practical experiences and team experts, Shuqin tech has discovered a new way for blockchain technology to be applied on real user cases. Shuqin tech has developed an open middle tier, by fusion up the technical advances for blockchain and overcome the capacity issue of public blockchain we provided a “Blockchain+” technical solutions, and established a trustworthy electronic certificate service platform – Baoquan.com.

Gifts for You

NO.1:【Free Recordkeeping】

NO.2:【Sign up for rewards】

Step 1: Enter into Baoquan.com, then sign up as a member of Baoquan.com
Step 2: Enter into “Account”, Click the fourth icon “”, enter “73FK3F”, then you can own the cash coupon “¥88”as rewards.
Notice: This cash coupon can be used in the services of download TEC(Trustworthy Electronic Certificate), e-data attestation, socialized verify.


NO.3:【Free Blockchain Reports】
Subscribe WeChat 

1.png
Contact us : js@baoquan.com


For enterprises, the following table are showing the main services.
 
TEC
Baoquan Sig.png


For more detailed information, please contact email: js@baoquan.com

hiring

WHAT WE ARE SEEKING FOR:
<
/><
/> We are seeking Blockchain Developers for our China office. (The part-time technical consultant also be allowed)<
/><
/> THE ROLE: <
/></> These developers will develop Blockchain big data products and e-data attestation services as well as build our next generation of web applications. <
/><
/> WHAT YOU WILL DO:

  • Work on the most interesting and challenging problems in the Blockchain space.
  • Be a part of a Blockchain team committed to the advancing technology
  • Build reusable, modular code liaries for use across Blockchains product line.
  • Work on an industry-leading product with big data.
WHAT YOU WILL NEED:
  • The foremost quality for this or any position at Blockchain is integrity.
  • Experience working with Java, golang and relational databases.
  • Thrive on learning new technologies and dont believe in one-size-fits-all solutions.
  • Understand how all the pieces fit together (front-end, database, network layer, etc.) and how they impact the performance of your application.
  • Familiar with IBM Hyerledger, Ethereum, siacoin or bitcoin.
  • Strong attention to detail.
Our website:https://www.baoquan.com/?lang=en
Contact us: js@baoquan.com

Shuqin Tech Cooperate with Hangzhou Bank:Annual Report on China’s Banking Industry

In November 21, Shuqin Tech and Hangzhou Bank jointly participated in the conference of “the information technology risk management in China’s banking industry”.
Hangzhou Bank took the report topic of “The research and application of Blockchain in the commercial banks”, described the four parts: research background, blockchain introduction, application in banks and prospect of commercial application. The experts expressed a strong interest and unanimously affirmed.

Before, Shuqin Tech had the application research in banking field with Hangzhou Bank, and developed the electronic recordkeeping platform that based on Blockchain. This platform can storage the key e-data during the banking business through blockchain technology, which has the superiority of immutability and traceability. Besides, by accessing to the Internet judicial expertise centre, to realize the closed loop of “recordkeeping-issuing”.

The platform has been formally launched in October, which will help banks to avoid operation risk and moral risk, then to realize the implementation of responsibility in the process of the dispute.

Free Recordkeeping

Zhejiang Shuqin Technology Co., Ltd was founded on 2016, is a blockchain based R&D and application service provider. Core team started the research of cryptocurrency and non-currency blockchain applications since 2013, and have made certain effort on the aspects such as blockchain infrastructure, consensus algorithms, digital assets exchange, trustworthy electronic certificate, etc. Based on the practical experiences and team experts, Shuqin tech has discovered a new way for blockchain technology to be applied on real user cases. Shuqin tech has developed an open middle tier, by fusion up the technical advances for blockchain and overcome the capacity issue of public blockchain we provided a “Blockchain+” technical solutions, and established a trustworthy electronic certificate service platform – Baoquan.com.

Gifts for You

NO.1:【Free Recordkeeping】

NO.2:【Sign up for rewards】

Step 1: Enter into Baoquan.com, then sign up as a member of Baoquan.com
Step 2: Enter into “Account”, Click the fourth icon “”, enter “73FK3F”, then you can own the cash coupon “¥88”as rewards.
Notice: This cash coupon can be used in the services of download TEC(Trustworthy Electronic Certificate), e-data attestation, socialized verify.


NO.3:【Free Blockchain Reports】
Subscribe WeChat 

1.png
Contact us : js@baoquan.com


For enterprises, the following table are showing the main services.
 
TEC
Baoquan Sig.png

For more detailed information, please contact email: js@baoquan.com
hiring

WHAT WE ARE SEEKING FOR:
<
/><
/> We are seeking Blockchain Developers for our China office. (The part-time technical consultant also be allowed)<
/><
/> THE ROLE: <
/></> These developers will develop Blockchain big data products and e-data attestation services as well as build our next generation of web applications. <
/><
/> WHAT YOU WILL DO:

  • Work on the most interesting and challenging problems in the Blockchain space.
  • Be a part of a Blockchain team committed to the advancing technology
  • Build reusable, modular code liaries for use across Blockchains product line.
  • Work on an industry-leading product with big data.
WHAT YOU WILL NEED:
  • The foremost quality for this or any position at Blockchain is integrity.
  • Experience working with Java, golang and relational databases.
  • Thrive on learning new technologies and dont believe in one-size-fits-all solutions.
  • Understand how all the pieces fit together (front-end, database, network layer, etc.) and how they impact the performance of your application.
  • Familiar with IBM Hyerledger, Ethereum, siacoin or bitcoin.
  • Strong attention to detail.
Our website:https://www.baoquan.com/?lang=en
Contact us: js@baoquan.com

Shuqin Tech Win A Prize in the “Internet+Traffic” Innovation and Entrepreneurship Competition

ETC创新创业大赛01

China “Internet + Traffic” innovation and entrepreneurship competition was held in Guangzhou higher education mega centre in November 23, 2017, co-sponsored by China traffic information center, Guangzhou transportation department, China traffic press and so on.

ETC创新创业大赛02

The main target for this competition is for the structural reforms, taking the new innovation as the development strategy, and in the view of globalization and internationalization, then to gather the “Internet + transportation” innovation resources, further consolidate the national transportation demonstration promotion platform.

ETC创新创业大赛03

Shuqin Tech won the third prize in the competition, and the developing project is for the Blockchain-based ETC.

ETC创新创业大赛04

There are three highlights that showing as the following: REST architecture has the high scalability features to support for platform development; Based on the big data risk analysis system, it can effectively control the risks of ETC use; By using blockchain technology, data tracking can be ensured, then to form the trust mechanism for the future development.

Free Recordkeeping

Zhejiang Shuqin Technology Co., Ltd was founded on 2016, is a blockchain based R&D and application service provider. Core team started the research of cryptocurrency and non-currency blockchain applications since 2013, and have made certain effort on the aspects such as blockchain infrastructure, consensus algorithms, digital assets exchange, trustworthy electronic certificate, etc. Based on the practical experiences and team experts, Shuqin tech has discovered a new way for blockchain technology to be applied on real user cases. Shuqin tech has developed an open middle tier, by fusion up the technical advances for blockchain and overcome the capacity issue of public blockchain we provided a “Blockchain+” technical solutions, and established a trustworthy electronic certificate service platform – Baoquan.com.

Gifts for You

NO.1:【Free Recordkeeping】

NO.2:【Sign up for rewards】

Step 1: Enter into Baoquan.com, then sign up as a member of Baoquan.com
Step 2: Enter into “Account”, Click the fourth icon “”, enter “73FK3F”, then you can own the cash coupon “¥88”as rewards.
Notice: This cash coupon can be used in the services of download TEC(Trustworthy Electronic Certificate), e-data attestation, socialized verify.

NO.3:【Free Blockchain Reports】
Subscribe WeChat 
1.png
Contact us : js@baoquan.com


For enterprises, the following table are showing the main services.
 
TEC
Baoquan Sig.png
For more detailed information, please contact email: js@baoquan.com
hiring

WHAT WE ARE SEEKING FOR:
<
/><
/> We are seeking Blockchain Developers for our China office. (The part-time technical consultant also be allowed)<
/><
/> THE ROLE: <
/></> These developers will develop Blockchain big data products and e-data attestation services as well as build our next generation of web applications. <
/><
/> WHAT YOU WILL DO:
  • Work on the most interesting and challenging problems in the Blockchain space.
  • Be a part of a Blockchain team committed to the advancing technology
  • Build reusable, modular code liaries for use across Blockchains product line.
  • Work on an industry-leading product with big data.
WHAT YOU WILL NEED:
  • The foremost quality for this or any position at Blockchain is integrity.
  • Experience working with Java, golang and relational databases.
  • Thrive on learning new technologies and dont believe in one-size-fits-all solutions.
  • Understand how all the pieces fit together (front-end, database, network layer, etc.) and how they impact the performance of your application.
  • Familiar with IBM Hyerledger, Ethereum, siacoin or bitcoin.
  • Strong attention to detail.
Our website:https://www.baoquan.com/?lang=en
Contact us: js@baoquan.com

2017年11月15日星期三

Data Security & Utilization Guide to Blockchain

value exchange_utilization of data

The blockchain is a structured list that saves data in a form similar to a distributed database. Using blockchain can provide higher security compared to storing all data in a central database. In the data storage and management aspect, damage from attacks on a database can be prevented. Moreover, since the blockchain has an openness attribute, it can provide transparency in data when applied to an area requiring the disclosure of data. Due to such strengths, it can be utilized in diverse areas including the financial sector and the Internet of Things (IoT) environment and its applications are expected to expand.

Taking healthcare industry as an example,

Healthcare companies are particularly interested in the transaction data of Blockchains, which store the history of all transactions that have been settled previously to new transactions. This unique characteristic of Blockchain allows users within the network to see which transactions were settled by accessing one single transaction.

While payment settlement will be one of the core operations of the health care Blockchain, major operations will revolve around the protection of data. Thus, it is likely that healthcare companies will replace traditional transactional data with client data, allowing institutions and other relevant parties to access past client data on the Blockchain.

“How valuable would it be to have the full history of an individual’s health? What if every vital sign that has been recorded, all of the medicines taken, information associated with every doctor’s visit, illness, operation and more could be efficiently and accurately captured? The quality and coordination of care would be expected to rise, and the costs and risks likely to fall,” researchers added.

The future of the data security, whether or not is based on blockchains as an important tool must embrace the holistic safety philosophy that is the main gist. When developed a communication system first, and then the security system or a transaction mechanism first, and then the security system, Shuqin Tech are actually accepting the thought that these systems should be developed with zero security to start with. And we have developed an open middle tier, by fusion up the technical advances for blockchain and overcome the capacity issue of public blockchain we provided a “Blockchain+” technical solutions, and established a trustworthy electronic certificate service platform – Baoquan.com.

Gifts for You

NO.1:【Free Recordkeeping】

NO.2:【Sign up for rewards】

Step 1: Enter into Baoquan.com, then sign up as a member of Baoquan.com
Step 2: Enter into “Account”, Click the fourth icon “”, enter “73FK3F”, then you can own the cash coupon “¥88”as rewards.
Notice: This cash coupon can be used in the services of download TEC(Trustworthy Electronic Certificate), e-data attestation, socialized verify.


NO.3:【Free Blockchain Reports】
Subscribe WeChat 

1.png
Contact us : js@baoquan.com


For enterprises, the following table are showing the main services.
 
TEC
Baoquan Sig.png


For more detailed information, please contact email: js@baoquan.com

hiring

WHAT WE ARE SEEKING FOR:
<
/><
/> We are seeking Blockchain Developers for our China office. (The part-time technical consultant also be allowed)<
/><
/> THE ROLE: <
/></> These developers will develop Blockchain big data products and e-data attestation services as well as build our next generation of web applications. <
/><
/> WHAT YOU WILL DO:

  • Work on the most interesting and challenging problems in the Blockchain space.
  • Be a part of a Blockchain team committed to the advancing technology
  • Build reusable, modular code liaries for use across Blockchains product line.
  • Work on an industry-leading product with big data.
WHAT YOU WILL NEED:
  • The foremost quality for this or any position at Blockchain is integrity.
  • Experience working with Java, golang and relational databases.
  • Thrive on learning new technologies and dont believe in one-size-fits-all solutions.
  • Understand how all the pieces fit together (front-end, database, network layer, etc.) and how they impact the performance of your application.
  • Familiar with IBM Hyerledger, Ethereum, siacoin or bitcoin.
  • Strong attention to detail.
Our website:https://www.baoquan.com/?lang=en
Contact us: js@baoquan.com



2017年11月14日星期二

11 Universities That Offer Blockchain Courses

The increasing demand for blockchain skills from various sectors makes blockchain an attractive subject and urges universities to add blockchain to their course list. To this end, several universities have already launched blockchain courses. We have put together a list of universities where you can learn about blockchain technology and Bitcoin, and make yourself more marketable in the eyes of potential employers.

Universities That Offer Blockchain Courses

1.     Tsing Hua University– China

Tsinghua

In 2017 Tsing Hua University started offering courses: beyond the cognitive basis of discipline. This course will be a comprehensive story for Blockchain principle, teaching by doctor teacher of Tsing Hua. It aims to help students to establish the overall distributed world outlook. The syllabus will involve the quantum delocalization ontology and the path integral method, mathematical category theory, computer system theory and legal framework of distributed computer, at the same time, as a distributed world outlook and innovative application, Blockchain would have a very detailed explanation.

2.   New York University (NYU) – USA

NewYork U.jpg
In 2014 New York University started offering blockchain classes, the first course opened was “The Law and Business of Bitcoin and Other Cryptocurrencies.” This course is still available and explains Bitcoin and other alternative payments mechanisms. NYU students can also sign up for “Digital Currency: Revolution in Money and Payments?” This course introduces participants to digital currencies and emerging mobile payment systems.

3.   Duke University – USA

Duke U.jpg
Duke University, situated in Durham County of North Carolina, also offers blockchain courses. Its pioneer cryptocurrency course “Innovation, Disruption and Cryptoventures” does not simply explore transactions in Bitcoin. The idea of the course is to understand a disruptive technology and to assess its implications on how business will be conducted in the future.

4.   Princeton University – USA

Princeton U.jpg
New Jersey’s Princeton University offers a blockchain related course called “Bitcoin and Cryptocurrency Technologies.” This online course offered via Coursera and addresses important questions about Bitcoin. If you are interested in knowing answers to following questions, we recommend considering it: How does Bitcoin work? What makes Bitcoin different? How secure are your Bitcoins? How anonymous are Bitcoin users? What determines the price of Bitcoins? Can cryptocurrencies be regulated? What might the future hold?

5.   Stanford University – USA

Stanford U.jpg
Stanford University offers a special course about blockchain called Bitcoin Engineering. It focuses on studying how to produce Bitcoin-enabled applications. You will be able to get a grasp of a well-developed introduction to Bitcoin as well as Bitcoin enabled computing.

6.   University of California-Berkeley – USA

California U.jpg
This university offers an open-source undergraduate cryptocurrency course for their students. At the same time, Berkeley students run organisation organises crypto meetups and host talks, developer tutorials, workshops and more. Moreover, the organisationbuilds side projects and conducts research using cutting-edge blockchain and crypto technologies.

7.   Cyprus’ University of Nicosia – Cyprus

Nicosia U.jpg
University of Nicosia is the largest independent university of Cyprus and it offers the first Master of Science degree in Digital Currency available online. The first course in the degree “Introduction to Digital Currencies” is offered for free as an open enrolment MOOC course to anyone interested in learning about the fundamental principles of digital currency. It is taught by renowned Bitcoin experts Andreas Antonopoulos and Antonis Polemitis and includes 12 live online sessions.

8.  University of Cumbria – UK

Cumbria U.jpg
This university launched a free Master-level online course that focuses on the future of money. During the course, students reportedly explore the assumption somewhat prevalent in the Bitcoin community that money is best understood as an asset with an intrinsic value.

9.  IT University of Copenhagen – Denmark

Copenhagen U.jpg
15-18 August 2017, IT University of Copenhagen is organising Blockchain Summer School. This first ever blockchain summer school will focus on educating students in the blockchain technology to be able to develop solutions within three focal industries. The participants will learn how blockchain technology is disrupting existing business models and will gain insights in paradigmatic changes occurring from economic, organisational and computer science viewpoints.

10.  Blockchain University – USA

Blockchain University situated in California combines robust academic instruction led by the most influential minds in the blockchain ecosystem with solution oriented design thinking and hands-on training. The university offers blockchain technology education for developers, managers and entrepreneurs.

11.  B9 Lab Academy – UK

B9 Lab Academy offers blockchain courses for technical executives and analysts. The courses are aimed at experienced technical stakeholders introducing everything needed to understand the technology, smart contracts  and both technical and social frameworks relating to the technology.

Free Recordkeeping

Zhejiang Shuqin Technology Co., Ltd was founded on 2016, is a blockchain based R&D and application service provider. Core team started the research of cryptocurrency and non-currency blockchain applications since 2013, and have made certain effort on the aspects such as blockchain infrastructure, consensus algorithms, digital assets exchange, trustworthy electronic certificate, etc. Based on the practical experiences and team experts, Shuqin tech has discovered a new way for blockchain technology to be applied on real user cases. Shuqin tech has developed an open middle tier, by fusion up the technical advances for blockchain and overcome the capacity issue of public blockchain we provided a “Blockchain+” technical solutions, and established a trustworthy electronic certificate service platform – Baoquan.com.

Gifts for You

NO.1:【Free Recordkeeping】

NO.2:【Sign up for rewards】

Step 1: Enter into Baoquan.com, then sign up as a member of Baoquan.com
Step 2: Enter into “Account”, Click the fourth icon “”, enter “73FK3F”, then you can own the cash coupon “¥88”as rewards.
Notice: This cash coupon can be used in the services of download TEC(Trustworthy Electronic Certificate), e-data attestation, socialized verify.


NO.3:【Free Blockchain Reports】
Subscribe WeChat 

1.png
Contact us : js@baoquan.com


For enterprises, the following table are showing the main services.
TEC
Baoquan Sig.png

For more detailed information, please contact email: js@baoquan.com
hiring

WHAT WE ARE SEEKING FOR:
<
/><
/> We are seeking Blockchain Developers for our China office. (The part-time technical consultant also be allowed)<
/><
/> THE ROLE: <
/></> These developers will develop Blockchain big data products and e-data attestation services as well as build our next generation of web applications. <
/><
/> WHAT YOU WILL DO:

  • Work on the most interesting and challenging problems in the Blockchain space.
  • Be a part of a Blockchain team committed to the advancing technology
  • Build reusable, modular code liaries for use across Blockchains product line.
  • Work on an industry-leading product with big data.
WHAT YOU WILL NEED:
  • The foremost quality for this or any position at Blockchain is integrity.
  • Experience working with Java, golang and relational databases.
  • Thrive on learning new technologies and dont believe in one-size-fits-all solutions.
  • Understand how all the pieces fit together (front-end, database, network layer, etc.) and how they impact the performance of your application.
  • Familiar with IBM Hyerledger, Ethereum, siacoin or bitcoin.
  • Strong attention to detail.
Our website:https://www.baoquan.com/?lang=en
Contact us: js@baoquan.com

Hangzhou Marathon: Shuqin Tech Close to The Dream on Feet

杭马01

November 5, 2017, when the day is slightly bright, the whole city is in a deep sleep, but a place in Hangzhou, a group dressed in beautifully to the same place——Hangzhou Huanglong Sports Center. Then Hangzhou marathon officially started with the shot in Huanglong Sports Centre Plaza.

There are five members from Shuqin Tech participated in the half marathon and mini marathon. As the most beautiful track in China, all the participants finished the schedule safely and successfully. Matathon is not only for a sport, but also for a kind of spirit, which comes down in one continuous line with self-improvement and forge ahead.

杭马02

This autumn, which is the most beautiful autumn in Hangzhou, together with the partners in Shuqin Tech. “Running can keep our mind clearer, and then put into work in the short time ”, the vice president Gao Shan of Shuqin Tech said. And this is the sixth year participate in such activity. There also have some partners first experience the competition event. What a wonderful day! The beautiful scenery, busy runners and running scenes have sunk deeply into their memory, which merely strengthens their mind to participate in the next year.

杭马03

Burning, Everybody! Keep up with the pace, let’s face the challenge once more, and then overcome ourselves again and again!

Free Recordkeeping

Zhejiang Shuqin Technology Co., Ltd was founded on 2016, is a blockchain based R&D and application service provider. Core team started the research of cryptocurrency and non-currency blockchain applications since 2013, and have made certain effort on the aspects such as blockchain infrastructure, consensus algorithms, digital assets exchange, trustworthy electronic certificate, etc. Based on the practical experiences and team experts, Shuqin tech has discovered a new way for blockchain technology to be applied on real user cases. Shuqin tech has developed an open middle tier, by fusion up the technical advances for blockchain and overcome the capacity issue of public blockchain we provided a “Blockchain+” technical solutions, and established a trustworthy electronic certificate service platform – Baoquan.com.

Gifts for You

NO.1:【Free Recordkeeping】

NO.2:【Sign up for rewards】

Step 1: Enter into Baoquan.com, then sign up as a member of Baoquan.com
Step 2: Enter into “Account”, Click the fourth icon “”, enter “73FK3F”, then you can own the cash coupon “¥88”as rewards.
Notice: This cash coupon can be used in the services of download TEC(Trustworthy Electronic Certificate), e-data attestation, socialized verify.


NO.3:【Free Blockchain Reports】
Subscribe WeChat 

1.png
Contact us : js@baoquan.com


For enterprises, the following table are showing the main services.
 
TEC
Baoquan Sig.png

For more detailed information, please contact email: js@baoquan.com
hiring

WHAT WE ARE SEEKING FOR:
<
/><
/> We are seeking Blockchain Developers for our China office. (The part-time technical consultant also be allowed)<
/><
/> THE ROLE: <
/></> These developers will develop Blockchain big data products and e-data attestation services as well as build our next generation of web applications. <
/><
/> WHAT YOU WILL DO:

  • Work on the most interesting and challenging problems in the Blockchain space.
  • Be a part of a Blockchain team committed to the advancing technology
  • Build reusable, modular code liaries for use across Blockchains product line.
  • Work on an industry-leading product with big data.
WHAT YOU WILL NEED:
  • The foremost quality for this or any position at Blockchain is integrity.
  • Experience working with Java, golang and relational databases.
  • Thrive on learning new technologies and dont believe in one-size-fits-all solutions.
  • Understand how all the pieces fit together (front-end, database, network layer, etc.) and how they impact the performance of your application.
  • Familiar with IBM Hyerledger, Ethereum, siacoin or bitcoin.
  • Strong attention to detail.
Our website:https://www.baoquan.com/?lang=en
Contact us: js@baoquan.com