As the world’s first application built on an EOS ecosphere, OracleChain needs to meet the demands of the Oracle (oracle machine) ecosystem by efficiently linking blockchain technology services with various real-life scenarios, thereby delving into this immense multibillion dollar valuation market. As a decentralized Oracle technology platform based on the EOS platform, the autonomous Proof-of-Reputation & Deposit mechanism is adopted and used as a fundamental service for other blockchain applications. In addition to Oracle services that provide real-world data to the blockchain, Oracle services that provide cross-chain data are also offered. Given that OracleChain can accomplish the functions of several prediction market applications, such as Augur and Gnosis, it can also support smart contract businesses that require high-frequency access to outside data in certain scenarios, such as Robo-Advisor. OracleChain will nurture and serve those blockchain applications that change the real world. Our mission is to “Link Data Link World,” with the aim of becoming the infrastructure linking the real world with the blockchain world. By achieving intra-chain and extra-chain data connectivities, we aspire to create a service provisioning platform that can most efficiently gain access to extra-chain data in the future blockchain world.

Chapter 1 Design Concept
1.1 Industry Background
According to whether an interaction exists between intra-chain and extra-chain information, the application scenarios of blockchain can be approximately categorized into two types.

The first type is similar to Bitcoin, a single currency system, which mainly supports the circulation of currency within a chain. Thus, the entire business process exists only within a blockchain, and the interaction with extra-chain information is not needed. Currently, the majority of public chain projects fall into this type. Confined in its system, participants generate and consume data within this blockchain only.

However, in the process of blockchain technology development, particularly the development of smart contract technology, the interaction of intra-chain and extra-chain data is required in many application scenarios. This interaction forms the second type of application scenarios that require extra-chain data.

For example, in the financial sector, the realization of financial contracts as smart contracts on the blockchain inevitably requires the use of information stored in external financial systems to determine the status of contracts. This model of integrating extra-chain business processes and intra-chain smart contracts requires a channel where intra-chain and extra-chain data can be connected. For those blockchain applications that aim to serve the real world, obtaining external data to trigger the logical judgment of smart contracts is necessary. Applications such as decentralized trading market systems, decentralized insurance systems, various prediction market systems, and instant compensation systems for flight delays fall into this type. These applications require an oracle machine to obtain real-world data to perform smart contracts.
If the EOS platform opens the possibility for an efficient blockchain, then OracleChain further strengthens it by providing extra-chain data for blockchain applications to bridge the data chasm separating the real world and the blockchain world and to break down data barriers among different blockchain applications. OracleChain will invigorate the [Suspicious link removed]munity, thereby generating more possibilities.

1.2 Innovation
Based on EOS Blockchain Platform
The EOS blockchain platform is designed based on a concept that has been universally verified and experimentally tested for a long time, representing the fundamental advancements of blockchain technology. The goals of the EOS blockchain platform are to support millions of users; to achieve free usage, easy upgrades, bug recovery, and low latency; and to integrate serial and parallel performances. With the excellent features of EOS, OracleChain can achieve a high throughput, efficiently provide Oracle data service, and ensure high processing capacity and low latency data services for blockchain applications, which make financial applications such as Robo-Advisor possible.

Participant Motivation and the Closed Loop of OCT
OracleChain will use an effective reward and penalty mechanism with the aim of stimulating data feeders to provide effective data feed service. All the data feeders, which regularly participate in data feed, will attain a high reputation and be rewarded with OracleChain Tokens (OCT). Conversely, irregular or fraudulent data feeders will have a low reputation and lose the OCT risk fund they deposited in the OracleChain platform. Through this double-effect mechanism, which we refer to as Proof-of-Reputation & Deposit (PoRD), OracleChain will effectively defend against hostile data feeders, which could affect the actual results of Oracle through malicious data feeds. Clients need to pay in OCT to have access to services, thereby achieving the closed-loop circulation of OCT within OracleChain.

Bridging the World
OracleChain will use data as a tool to connect the world and bridge the data chasm separating the real-world and blockchain applications, which will ensure connectivity between data in the real world and data in the blockchain world to promote the overall prosperity of the blockchain ecosystem.

A More Scientific Outlook on Data
OracleChain proposes the concept of “value of data” in blockchain. OracleChain also provides data service for blockchain applications and charges data consumers, thereby reflecting the value of data.

1.3 Mission
Our mission is to “Link Data Link World.” In view of the superior performance of the EOS blockchain platform, OracleChain positions itself as a service platform that connects intra-chain and extra-chain data, and provides public data services for large-scale commercial blockchain applications. Although the EOS project is still at its initial stage, it has already attracted considerable attention in the blockchain industry. OracleChain plans to take an active part in the establishment of the ecosphere, provide public oracle machine services, promote the landing of more applications, and ensure the common prosperity of the ecosphere.

The core objective of OracleChain is to become the infrastructure that links the real world and the blockchain world by introducing extra-chain data into blockchain to achieve data connectivity inside and outside the chain, and to build a service provisioning platform that can most efficiently gain access to extra-chain data in the future blockchain world.

Chapter 2 Technology Architecture
2.1 Platform Model

The OracleChain platform consists of two levels, namely, core and services. On the basis of the EOS blockchain infrastructure, the OracleChain core builds on the basic service and operation mechanism. The services level on top of the core transforms the Oracle platform into an application programming interface (API) to provide Oracle services.

OracleChain Core
OracleChain Core provides Oracle, Outcome Tokens, and Data Feeder management and other basic services. OracleChain accomplishes the management of Oracle and Data Feeder on this level. Data Feeders read the data based on the requirements of Oracle and work with other Data Feeders to complete the Oracle answer. In particular, OracleChain introduces the reward and penalty mechanism “Reputation,” the penalty mechanism “Deposit,” and the reward mechanism “Oracle fees” to complete the data feed process and finally provide an answer to Oracle.

Data Feeders work together to complete an Oracle and share its benefit. Data Feeders can also discover abnormal Data Feeders and trigger the penalty mechanism through self-organizing methods. Meanwhile, a whistleblower can report any dishonest yet not easily detected behavior of Data Feeders.

OracleChain deliberately sets up a Presbyterian mechanism, which consists of the most prestigious Data Feeders in the network to form a final group of judges who adjudicate the malicious data feeds and reporting behavior, and trigger the penalty mechanism to prevent malicious Data Feeder organizations (which do not self-punish members of the organization) and malicious whistleblowers.

OracleChain Services
OracleChain Services provide external services, such as Oracle Platform, State Channels, and Services API. OracleChain implements the matching and billing of Oracle services in this layer, which establishes the infrastructure capability of OracleChain.

The Oracle platform will match Oracle demanders and Data Feeder organizations. Data Feeder organizations may be unconsolidated temporary organizations or organizations that provide professional services. Each Oracle will state the cost, required organization mode, and participation thresholds of Data Feeders. For example, a total of 100 highly prestigious Data Feeders will be needed, among which 80 feeders have to reach an agreement to complete a data feed. The Services API will be designed to be more generic, in line with the design concept of the EOS cross-chain and the need for easy and convenient development.

Oracle services can be used for any EOS application on the OracleChain Platform model. Whether for a high-frequency prediction market or low-frequency agricultural insurance, OracleChain services can be used to truly serve the blockchain technology in real life.

2.2 Data Feed Mechanism
In a traditional centralized system, data are usually obtained directly from a data source in the form of data input. This data source could be within the centralized system or from a third party where the operation trusts and depends on the data entered by the data source. The data source acts as an upright, unbiased judge because it could be a tightly controlled module within the system or is performed by an absolutely trusted third party, where the system works efficiently under the drive of the data source.

We consider the decentralized blockchain situation in depth. This simple question becomes complicated and will lead to various questions, such as “Who qualifies for the trust of all subjects on the blockchain and can function as the data source?” or “Who is qualified to determine the credibility of the participants?” The sustainability of credibility is also subject to doubt. However, after attaining higher authority, a participant who consistently followed the rules and gradually accumulated credit has the potential to do evil.

OracleChain proposes a data feed mechanism to assist the data collection and trust gaining processes of blockchain under the background of decentralization. OracleChain will use an effective reward and penalty mechanism with the aim of stimulating data feeders to provide effective data feed service. All the data feeders, which regularly participate in data feed, will attain a high reputation and be rewarded with OCT. Conversely, irregular data feeders will have a low reputation and lose the OCT risk fund they deposited in the OracleChain platform. Through this double-effect mechanism, which we refer to as PoRD, OracleChain will effectively defend against hostile data feeders, thereby affecting the actual results of Oracle through malicious data feeds. Clients need to pay in OCT to have access to services, thereby achieving the closed-loop circulation of OCT within OracleChain.

In the PoRD mechanism, each Oracle corresponds to a smart contract. Each Oracle will have a threshold for its Reputation and Deposit. Active feeders of the blockchain network can participate in the data feed service of the Oracle only if its Reputation and Deposit exceed its threshold. When specified conditions trigger an Oracle to enter the settlement phase, the smart contract that corresponds to the Oracle will determine well-intentioned data feeds and malicious data feeds by using its processing logic and parameter settings. Well-intentioned data feeds will be rewarded with increased reputation and OCT deposit, whereas malicious data feeds will be punished with a deduction from its reputation and OTC deposit. Thus, the double-effect mechanism can ensure that the data feed service of the entire system works properly.

2.3 Technological Advantages
The four technological advantages of the OracleChain Platform are efficiency, compatibility, participation, and convenience.

Efficiency
Fine-grained control of block data and good parallel processing optimization are achieved by the basic blockchain infrastructure. The architecture of OracleChain can support second-level validation time and powerful transaction throughput.

Compatibility
OracleChain can provide data services to the entire EOS ecosphere and ensure data transfer and connectivity of intra-chain and extra-chain data through the cross-chain mechanism of the basic blockchain infrastructure.

Participation
Users can participate in the global Oracle consensus system and OCT ecological operation through data feeds. Unique governance strategies will encourage feeders to comply with community rules and use the PoRD double-effect mechanism to ensure the normal operation of OracleChain.

Convenience
OracleChain can provide a more efficient and practical Services API for other blockchain applications to use Oracle services.

Chapter 3 Governance Architecture
Governance based on blockchain systems has always been a difficult issue. Whenever an upgrade is needed, a hard fork should be implemented, which usually leads to many arguments and discussions between all blockchain stakeholders. Even a simple approach like modifying any set of variables in the source code could become complicated, such as the debate over the size of the block and the Segregated Witness mechanism in the Bitcoin community, because no clear upgrade path exists. Achieving such an agreement becomes more difficult when the interests of end users and decision makers are inconsistent. In fact, some complicated governance decisions, such as fixing a single smart contract error in “The DAO,” could lead to complex problems, resulting in community fragmentation.

The most significant cause of these problems is the lack of clarity and transparency in the definition of the decision process for protocol upgrade or modification. To address this problem, OracleChain takes its own management as part of its community consensus. The Oracle mechanism provided by OracleChain is used to make the negotiation process as effective and transparent as possible. Moreover, the consensus mechanism could be defined by multiple variables, which determine the function of the system or the modification of a certain parameter of the system, such as the basic cost of using Oracle services.

The basic understanding of community governance is that the governance strategy is to hand over authority to the highly prestigious feeders (users) on the OracleChain network. That is, different levels of governance activities require feeders to reach different levels of reputation to participate such that users will have different effects on the OracleChain based on different reputation levels. Feeders on the higest level can be granted limited and supervised permissions to freeze accounts, update defective applications, and even propose changes to underlying protocols.

OracleChain users can learn how to improve the protocol effectively by setting the to-be-negotiated variables as Oracle and by voting at all levels in the entire community. The governance strategy of OracleChain can prompt feeders to abide by the data feed rules in the community and maintain a high reputation to have a powerful voice in community governance. By building an Oracle for potential problems, we can help the community agree on which version of code to use. Each user will select the optimization measures, but a simple default strategy will maximize its value. By virtue of the rational decision of each user, many users will provide the correct direction for the entire OracleChain community.

Chapter 4 Implementation and Iteration
4.1 Development Roadmap
OracleChain officially launched its roadshow in China in June 2017. The first demo system is expected to start at the end of the year. The official system will be launched in July 2018. During the entire R&D process, the OracleChain team will closely track the development progress of the EOS project and advance the project synchronously.

4.2 Ecosphere Establishment
OracleChain positions itself as an essential link that connects intra-chain and extra-chain data in the EOS ecosystem and cultivates more advance applications based on it. The prosperity of an ecosystem depends on more active participation from many talents. Therefore, 10% of the OCT allocation scheme is the community promotion fund. The fund will be used to support several community activities, such as hackathons, to foster more developers. By organizing these activities, we also hope to find excellent ideas and teams, develop more blockchain applications around the database services of OracleChain, and promote the overall prosperity of the ecosystem actively.

Chapter 5 Application
5.1 Prediction Market
OracleChain can be applied in the prediction market. Prediction market applications based on OracleChain basic services will provide unique value discovery for local and global economies. In terms of blockchain, two projects, namely, Augur and Gnosis, connect intra-chain and extra-chain data. These projects use the prediction market structure, which indicates that a series of processes, such as community votes, can be used to generate fair data on the blockchain to import an extra-chain data into a chain. The prediction market structure can fully support scenarios that are low in interaction with extra-chain data, such as a smart contract on betting on the outcome of a football match. However, for scenarios where the frequencies are high, high requirements are proposed for the real-time performances of intra-chain and extra-chain data channels. OracleChain can support not only the low-frequency prediction market operation in the traditional manner but also the offline capturing of extra-chain data in real-time by multiple feeders and selecting an outcome from the feeding data provided by feeders and synchronizing it to the blockchain. In an EOS blockchain ecosphere with various application scenarios, an efficient strategy is needed to replace the inefficient offline supervision. To solve this problem, OracleChain will ensure a real-time and accurate service of the connectivity of intra-chain and extra-chain data through the self-governing structure of the PoRD mechanism.

5.2 Insurance Market
OracleChain can be used to organize the price and income of agricultural products of decentralized insurance markets in response to the national call to serve agriculture-related issues.

In the traditional insurance industry, insurance companies assume the intermediary status of absorbing and consuming risks. The emergence of blockchain has made large-scale mutual insurances possible. However, such self-organizing insurance schemes are beset by efficiency and risk levels, and they are difficult to generalize. OracleChain provides an alternative, particularly with respect to the prices of and income from agricultural products.

On June 1, 2017, the General Office of the Central Committee of the Communist Party of China and the General Office of the State Council issued “the suggestions on accelerating the establishment of the policy system to promote new agricultural business entities” (hereinafter referred to as “the suggestions”). The suggestions propose that we should actively conduct pilot projects, such as weather index insurance, agricultural product prices and income insurance, “insurance + futures,” farmland water conservancy facilities insurance, and loan guarantee insurance. In terms of agricultural product prices, which are a type of concentrated risk, insurance companies cannot easily use the traditional “space + time” risk-sharing model to reduce their own risks. Insurance companies can only use the “time” risk-sharing model. However, finding a corresponding risk distribution agency is difficult.

OracleChain can develop various types of smart insurances designated for agricultural product prices, which directly connect insurers and the insured. The purchase and compensation method based on smart contracts will significantly reduce the cost of insurance and directly apportion the concentrated risk of insurance companies to the individual risk takers.

5.3 Robo-Advisor
A blockchain machine has many application scenarios. Before smart contracts can truly automatically execute business logic in real life, its primary job is to access external data and use the automatic function of smart contracts based on the blockchain to execute business logic in place of traditional methods of human involvement. Robo-Advisor refers to a virtual robot that is based on the financial needs of customers, algorithms, and products, and performs the financial advisor services previously provided by human beings. In the blockchain, the functions of Robo-Advisor are accomplished mainly through smart contracts. Through the Oracle smart contract mechanism, OracleChain can be used to detect and process the price of intra-chain and extra-chain investment objectives, which can be used to establish the decentralized Robo-Advisor. Investment objectives can be either traditional financial targets or blockchain assets.

5.4 Sports Bidding
OracleChain can provide a decentralized data organization and processing scheme for sports bidding. Gnosis reports that the online global sports bidding market is large. The amount of gambling fees in regulated markets is at least billions of US dollars, whereas some estimates indicate that unregulated markets are 10 times larger than regulated markets. Despite considerable opportunities, companies and governments have been slow to innovate under existing models. Existing applications running in isolated data and pools of liquidity have limited accessibility and take a long time to promote new products to the market. Moreover, with the centralization of services, users will encounter additional risks, such as theft or other failures, and unexpected problems in payment.

The main obstacles to this centralized sports bidding service are data isolation and poor accessibility. Without an open, fair, and transparent access mechanism for the markets, products cannot provide a platform model that promotes innovation, yet it can be undermined.

OracleChain operates on an open platform, and the organization of all the bidding results is decentralized, fair, unbiased, and transparent. In this manner, old and new participants can safely obtain operational returns on the same platform, such as increasing liquidity, which translates to better odds.

References
[1] S. Nakamoto, “Bitcoin: A peer-to-peer electronic cash system,” 2008.
[2] block.one,“EOS.IO Technical White Paper”, 2017.
[3] block.one(赵微、谭智勇、宋承根@OracleChain，梓岑@YOYOW译),“EOS.IO Technical White Paper(EOS白皮书-中文版)”, 2017.
[4] V. Buterin, “Ethereum: A next-generation smart contract and decentralized application platform,” 2014.
[5] Consensys, A Visit to the Oracle, 2016.
[6] J. Peterson and J. Krug, “Augur: A decentralized, open-source platform for prediction markets,” 2014.

First published in Chinese on June 22, 2017
Translated into English on Nov 7, 2017

We are OracleChain team. We are both the EOSIO block producer candidate and the builder of the EOS oracle service infrastructure. We believe that a candidate should be judged more based on what he/she currently does than what he/she claims to be doing.



As the world’s first application built on an EOS ecosphere, OracleChain needs to meet the demands of the Oracle (oracle machine) ecosystem by efficiently linking blockchain technology services with various real-life scenarios, thereby delving into this immense tens of billions of dollars valuation market. As a decentralized Oracle technology platform based on the EOS platform, the autonomous Proof-of-Reputation & Deposit mechanism is adopted and used as a fundamental service for other blockchain applications. In addition to Oracle services that provide real-world data to the blockchain, Oracle services that provide cross-chain data are also offered. Given that OracleChain can accomplish the functions of several prediction market applications, such as Augur and Gnosis, OracleChain can also support smart contract businesses that require high-frequency access to outside data in certain scenarios, such as Robo-Advisor. OracleChain will nurture and serve those blockchain applications that change the real world. Our mission is to “Link Data, Link World,” with the aim of becoming the infrastructure linking the real world with the blockchain world. By achieving intra-chain and extra-chain data connectivity, we aspire to create a service provisioning platform that can most efficiently gain access to extra-chain data in the future blockchain world.

This report is trying to answer the questions outlined by @eosgo in their BP candidates criteria post.

1.PUBLIC PRESENCE: A public website URL and at least one social media account.
Official website: https://oraclechain.io/index-en
Steemit: https://steemit.com/@oraclechain
Telegram: https://t.me/OracleChainChat
Sina weibo: https://weibo.com/u/6347445425
Twitter： https://twitter.com/Oracle_Chain
Reddit: https://www.reddit.com/user/Oracle_Chain
Wechat official account: OracleChain

2.ID ON STEEMIT: Links to the following ID information, all posted to the Steem blockchain (either in one post or multiple):

Official block producer candidate name.
OracleChain
Location of company headquarters.
Beijing China
Expected location of servers.
China, Hong Kong, Japan, Canada, etc.(multiple locations)
Type of servers (cloud, bare metal, etc).
Cloud Machine or Physical Machine（IDC）
Current employee list and pictures of at least 67% of staff.
The OracleChain team is a professional blockchain R&D and operations team. The team includes the top team of experts in China’s blockchain. Currently we have 19 full-time employees.



Wei Zhao(Harvey老狼) CEO Cofounder
Mr. Zhao began accessing Bitcoin and participated in a number of [Suspicious link removed]munity projects (Peercoin, Factom, BitShares) since 2011, and has extensive experience in the blockchain industry. Returning from Singapore in 2016, he won the second place in the “Shanghai Wanxiang-Deloitte Blockchain Programming Marathon” and the second place in the “Mercedes-Benz Technology Marathon”. Prior to the establishment of OracleChain project, he worked as a blockchain technologist at a former technology company.



Zhiyong Tan Chief Scientist Cofounder
Mr. Tan is a PhD in cryptography and information security at Tsinghua University. He has 16 years of experience in the IT field. He has 7 years of experience in the science and technology department of the state-owned large-scale commercial bank in China. He was the technical director of the national 863 fund and 115 fund project in the field of safety, and the Ministry of Industry and Information Technology Drafter of the Blockchain — Reference Architecture, a reviewer for the Journal of Supercomputing SCI in the United States. It has applied for 71 patents in the blockchain field, of which 47 are the first inventors.



Chenggen Song CTO Cofounder
Mr. Song is a Ph.D. in cryptography from Peking University and has long been engaged in cryptography and blockchain R&D in Central Universities. As the person in charge, he has undertaken many national cryptography projects and participated in a number of major national science and technology projects as technical supervisors. Participated in the drafting of a number of national information security and cryptography standards. He is also open source project GMSSL cryptographic algorithm provider.



OracleChain Team
Other team members include:
Decai Zeng: Blockchain Development
Lian Chen: Blockchain Development
Yuanbin Shao: Blockchain Development
Yanan Wang: Blockchain Development
Tengfei Niu: Blockchain Development
Congzhen Yang: Blockchain Development
Wenfeng Cai: Blockchain Product Manager
Jinpeng Lu: Android/IOS Development
Weiwei Shi: Android/IOS Development
Cheng Ji: Front-end development/UI design
Yufang Guo: Front-end development/UI design
Xueting Huang: Game Art / Game Planning
Andy : Game Art / Game Planning
Wenyu Zhang: Community Operation
Po Hu: Community Operation
Li Guo: HR/Team Administration
3.TECH SPECS: Estimate of technical specifications and total expenditure for resources by June 3, 2018 — posted to Steem blockchain. Check mark given for any estimate, modesty encouraged by permanent Steem record. Quality and accuracy of effort will be judged by the EOS community.
Now OracleChain is the testnet block producer node, and we adopt the DigitalOcean cloud machine with the server approach like:
12core CPU(Intel Xeon ProcessorE5–2650 v4)/48GB DDR4/320G SSD
When the EOSIO mainnet is running， we will adopt the cloud machine with the follow basic configuration like：
（1 host, 1 standby）x1.32xlarge/64 core/1024GiB Meory/10TBSSD (We use the AWS cloud server as an example. Actually, other cloud host services or IDC servers may also be used.)
Of course, we will be prepared to make specific adjustments as needed, and the adjustment details will be based on the recommendations of Block.One and on the needs of the EOSIO mainnet. In the future, depending on the maturity of the IPFS technology, IPFS blockchain data storage solutions may also be adopted.

4.SCALING PLAN: Estimated scaling plan for hardware after June 3, 2018 — posted to Steem blockchain. Rough outlines receive a check mark, open review gauges the effort.
After June 3, 2018， we will adopt the cloud machine with the follow corresponded configuration with the actual payload, the typical scaling plan is(1 host, 1 standby)：
x1.32xlarge/128核/1952GiB Meory/50TBSSD (We use the AWS cloud server as an example. Actually, other cloud host services or IDC servers may also be used.)
We also prepared a physical machine（IDC）plan, which is just like(1 host, 1 standby):
4 * Intel Xeon ProcessorE7–4820 v4 2.00 GHz/10C/25M/115W processors；
8 * 12 DIMM memory board；
64 * 32GB/DDR4/ 2400MHz/ECC/REG/2RANK memory；
24* 3.5 SAS3.0/SATA3.0 Drive Backplane；
14 * Intel/SSD/DC/S4500 Series(3.8TB,2.5inch SATA 6Gb/s ,3D Nand,TLC)；
Support 4* X16+4* X8；
2+2 920W Redundant power supply；
2 * Standard gigabit network interfaces。
We are negotiating technical cooperation with cloud service providers. It is possible that we will adopt a more optimized solution than the above two solutions in the future.

5.COMMUNITY BENEFIT: Community benefit project outline, only for projects expected to be public by June 3, 2018 — posted to Steem blockchain.
Some of our specific contributions made to the EOS ecology include:
1). Now the OracleChain team has developed PocketEOS, an EOS wallet application that can actually run on the EOSIO test network. It plans to open source the wallet application code in May 2018 to support EOS ecological construction. At the same time, we also released the first Dapp name “有问币答(Ask your question with your token)” which is fully operational on EOS smart contracts.



2). Currently, OracleChain is also a block producer of the EOS official testnet. The OracleChain team will actively cooperate with various debugging, operation and maintenance tasks of the EOSIO official testnet, and further enhance the ability to operate and maintain the EOSIO mainnet block producer node.
The EOSIO official testnet block producer node information is:
Node Name: OracleChain
URL/IP Information: 159.89.197.162, port: 8888/9876
Contact: Issay
You can contact us on Telegram Issay(OracleChain) found in: EOSIO BlockPros (link: https://t.me/EOSPros)



3). The OracleChain team, as an early researcher of EOS technology and a continuing promoter of EOS technology in China, started the series of EOS blockchain development practice reports from July 2017. The EOS Compilation and Testing Guideline has been published by the OracleChain team. Five issues(1 https://oraclechain.io/files/eos-1.pdf , 2 https://oraclechain.io/files/eos-2.pdf , 3 https://oraclechain.io/files/eos-3.pdf , 4 https://oraclechain.io/files/eos-4.pdf , 5
https://oraclechain.io/files/eos-5.pdf ) have been issued so far, which has effectively promoted and popularized of EOS technology in China.



4). The OracleChain team has been propagating EOS in China to promote smart contract development and explore decentralized business models. A series of “Linking Dapp Times — Blockchain Technology Salon Offline Meetup Nationwide” activities have been held. The event was held in four cities in China, namely Beijing, Shanghai, Shenzhen and Chengdu. These activities invited the local EOS project development team in the event cities to actively participate in and promoted the popularization of EOS Ecology in China.



Related media reports are as follows:：
Linking Dapp Times — Blockchain Technology Salon Offline Meetup (Beijing Station) ended successfully, Dapp’s Golden Times looks forward to your joining
http://www.jinse.com/news/blockchain/118517.html
Linking Dapp Times — Blockchain Technology Salon Offline Meetup (Shanghai Station) ended successfully to help the prosperity and development of Dapp Ecology
http://www.jinse.com/blockchain/138136.html
Linking Dapp Times — Blockchain Technology Salon Offline Meetup (Shenzhen Station) ended successfully to welcome the industry’s next Dapp Times
http://www.jinse.com/blockchain/148043.html
Linking Dapp Times — Blockchain Technology Salon Offline Meetup (Chengdu Station) ended successfully with EOS to greet Great Dapp Times
http://www.jinse.com/blockchain/174881.html

5). The OracleChain team will host the EOS blockchain hackathon in Beijing(expected city), China, in May 2018, encouraging more EOS developers, especially EOS Dapp developers, to get more exposure opportunities, tap outstanding projects, and promote EOS ecologically fast landing.



6). The OracleChain team will work with the freeCodeCamp Chinese community (link: https://www.freecodecamp.cn/) to cultivate and develop the EOS development community. The freeCodeCamp is the open source project on GitHub with the maximum stars (link:https://github.com/freeCodeCamp/), covering more than 160 countries, more than 2000 cities, and about 2 million developers (of which about 120,000 developers in China community). The OracleChain team will continue to deepen cooperation with the freeCodeCamp Chinese community and its operator BlockGeek in the future. With its existing developer community and organizational model, it will nurture and incubate more EOS developer communities globally.



7). EOS developer training has always been an important element in the EOS developer’s plan. In view of this, the OracleChain team will deepen cooperation with freeCodeCamp Chinese community and its operator BlockGeek and plans to conduct blockchain training in Beijing, Shenzhen, Shanghai, Suzhou, Chengdu, Hangzhou, etc., and follow-up. We will also develop online and gamified courses and train more EOS developer.

. We established the OracleChain Lab to explore smart contract development and decentralized application business models, and to incubate third-party Dapp projects. At present, several Dapp projects that we hatch will be brought to market simultaneously when PocketEOS is officially launched.

9). The OracleChain team also organized a blockchain high-end technology salon and continued to export the core blockchain technology to China’s blockchain projects and enterprises. The three themes that have been held so far are “Smart Contract Security https://oraclechain.io/files/salon-1.pdf “ and “Cryptographic attacks in privacy protection https://oraclechain.io/files/salon-2.pdf “ and “The most powerful tool in the blockchain — consensus”.


10). The OracleChain team has a strong background in information and system security and is working hard to provide a security solution for the EOS ecosystem, especially the EOSIO block producer node.

We always think that when we look at a candidate who claims to do something in the future, we still need to look at what he has done. All of the above work that we described and already done will continue to be carried out by the OracleChain team. In the future，OracleChain will continue to actively participate in the EOS community’s various tasks which includes improving and optimizing EOS development documentation, promoting the development of EOS wallet and browser, support for EOS start-up projects, organizing various types of event to propagate EOS projects, etc. And we will work with our partners to incubate more EOS developers, establish more local EOS technical communities in China. We hope to cooperate with global EOS developers and community participants to build EOS Ecosystem.

6.TELEGRAM+TESTNET: Listing of Telegram and Test-net node names for community testnet participation.
Telegram： https://t.me/OracleChainChat
Node name： OracleChain
Email address： contact@oraclechain.io

我们是OracleChain团队. 我们既是EOS出块节点（超级节点）的竞选者，同时也是EOS预言机底层基础设施的建设者。

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https://t.me/OracleChainChatCN

OracleChain（欧链）作为全球第一个直面EOS区块链生态Oracle（预言机）需求的基础应用，将区块链技术服务和现实生活中的多种需求场景直接高效对接，深耕这个百亿美金估值的巨大市场。OracleChain是一个以EOS平台为基础的去中心化Oracle技术平台，采用自主的PoRD机制，将现实世界数据引入区块链，并将此作为基础设施为其他区块链应用提供服务。OracleChain将在区块链内提供现实世界数据的Oracle服务，同时还可以提供跨链数据的Oracle服务。基于OracleChain除了能实现Augur、Gnosis等预测市场（Prediction Market）应用的功能之外，还能支撑对链外数据有更高频率访问需求的智能合约业务，比如智能投顾等场景。OracleChain将改变当前区块链应用的开发模式，建立全新的生态圈，服务于真正能改变现实世界的区块链应用。OracleChain的使命是“让世界与区块链互联”，立志成为链接现实世界与区块链世界的基础设施，通过把外部数据引入区块链来实现链内链外的数据互通，OracleChain将是未来区块链世界中最高效的获取链外数据的服务提供平台。
以下的报告主要为了回答@eosgo在EOS出块节点竞选者信息披露要求中所关心的问题。

1.PUBLIC PRESENCE: A public website URL and at least one social media account.
项目官网: https://oraclechain.io/index-en
Steemit: https://steemit.com/@oraclechain
Telegram: https://t.me/OracleChainChat
新浪微博官微: https://weibo.com/u/6347445425
Twitter： https://twitter.com/Oracle_Chain
Reddit: https://www.reddit.com/user/Oracle_Chain
项目官方微信号: OracleChain

2.ID ON STEEMIT: Links to the following ID information, all posted to the Steem blockchain (either in one post or multiple):

官方出块节点竞选者名字
OracleChain
公司总部的位置
Beijing China
预期的服务器位置
中国，香港，日本，加拿大等（会选择其中一个或多个地点来部署）
服务器类型（云，裸机等）
云主机或者IDC物理主机
目前员工名单和至少67％的员工照片.
OracleChain团队是一个专业的区块链研发和运营团队，团队中包括中国区块链顶级的专家队伍。目前我们已经有19位全职员工。
people_1.png
赵微(Harvey老狼) CEO 联合创始人
2011年开始接触比特币，参与多项区块链社区项目(Peercoin、Factom、BitShares)，作为BitShares中国社区核心人员维护全球1/23出块节点，具有丰富的区块链行业经验。2016年从新加坡回国，当年获“上海万向德勤区块链编程马拉松”第二名和“梅赛德斯-奔驰科技马拉松”第二名。

people_2.png
谭智勇 首席科学家 联合创始人
清华大学密码学与信息安全博士，15年IT领 域工作经验，7年国有大型商业银行总行科技部门工作经验，曾为安全领域国家863 基金和115基金项目的技术主管，工信部《区块链 参考架构》技术标准起草人，美国 Journal of Supercomputing SCI杂志审稿人。已申请区块链领域专利71项，其中 47项为第一发明人。

people_3.png
宋承根 CTO联合创始人
北京大学密码学博士，长期在中央高校从事密码学和区块链研发工作。曾作为负责人承担多项国家密码专项，以技术主管身份参加多项国家重大科技专项。参与多项国家信息安全、密码标准起草工作。开源项目GMSSL密码算法提供者。

OracleChain团队
团队合影_m.jpg
其他团队成员包括：
曾德才 区块链开发
陈炼 区块链开发
邵元斌 区块链开发
王亚南 区块链开发
牛腾飞 区块链开发
杨从圳 区块链开发
蔡文锋 区块链产品经理
卢金鹏 安卓/IOS开发
师巍巍 安卓/IOS开发
纪成 前端开发/ UI设计
郭玉芳 前端开发/ UI设计
黄雪婷 游戏美术/游戏策划
安迪 游戏美术/游戏策划
张文玉 社区运营
胡泊 社区运营
郭莉 人力行政

3.TECH SPECS: Estimate of technical specifications and total expenditure for resources by June 3, 2018 - posted to Steem blockchain. Check mark given for any estimate, modesty encouraged by permanent Steem record. Quality and accuracy of effort will be judged by the EOS community.
现在OracleChain是EOS 官方testnet的出块节点，我们采用DigitalOcean云主机服务器，目前的配置如下：:
12核CPU(Intel Xeon ProcessorE5-2650 v4)/48GB DDR4/320G SSD
当EOS主机运行时，我们将规划采用具有以下基本配置的云主机配置（主备各1台）：
x1.32xlarge/64核/1024GiB内存/10TBSSD (我们以AWS云主机服务为例，实际也可能采用相应的其他cloud主机服务)
当然，我们会准备根据需要进行具体调整，调整细节将基于Block.One的建议和基于EOS主网上线时的具体需求。未来视IPFS技术的成熟程度也可能采用IPFS区块链数据存储方案。

4.SCALING PLAN: Estimated scaling plan for hardware after June 3, 2018 - posted to Steem blockchain. Rough outlines receive a check mark, open review gauges the effort.
2018年6月3日后，我们将采用与实际有效负载相符的云机，典型的扩展方案为（主备各1台）：
x1.32xlarge/128核/1952GiB内存/50TBSSD (我们以AWS云主机服务为例，实际也可能采用相应的其他cloud主机服务)
当然，我们还准备了一套IDC物理主机的部署方案，初步的硬件部署计划为（主备各1台）：
4颗Intel Xeon ProcessorE7-4820 v4 2.00 GHz/10C/25M/115W 处理器；
8个12 DIMM 内存板；
64条32GB/DDR4/ 2400MHz/ECC/REG/2RANK内存；
24* 3.5 SAS3.0/SATA3.0背板；
14块Intel/SSD/DC/S4500 Series(3.8TB,2.5寸 SATA 6Gb/s ,3D Nand,TLC)；
支持4* X16+4* X8；
920W 2+2冗余电源；
标配2个千兆网络接口。
我们目前正在和云服务商洽谈技术合作，不排除之后采用比以上两个方案更优化的方案。

5.COMMUNITY BENEFIT: Community benefit project outline, only for projects expected to be public by June 3, 2018 - posted to Steem blockchain.
目前我们所做的一些具体的对EOS生态的贡献包括：
1). 目前OracleChain团队已经开发出实际可以在EOS测试网络上运行的EOS钱包应用PocketEOS，并计划在2018年5月对钱包应用代码开源，支持EOS生态建设。同时还发布了第一款完全运行在EOS智能合约上的Dapp“有问币答”。
PE_m.jpg

2). 目前OracleChain也是EOS测试公网的出块节点（Block Producer），OracleChain团队将积极配合EOS测试公网的各种调试和运维工作，也进一步提升自己运维EOS生产节点的能力。
测试公网出块节点的信息如下：
节点名称：OracleChain
URL/IP信息: 159.89.197.162, port: 8888/9876
联系人：Issay
电报：Issay(OracleChain) found in: EOS BlockPros (link: https://t.me/EOSPros)
testnet-bp_m.jpg

3). OracleChain团队作为EOS技术的早期研究者和EOS技术在中国的持续推广者，从2017年7月开始，OracleChain团队就公开了一系列EOS区块链开发实践报告：《EOS编译、测试系列指南》，截止目前已经发布了五期(一：https://oraclechain.io/files/eos-1.pdf 、二：https://oraclechain.io/files/eos-2.pdf 、三：https://oraclechain.io/files/eos-3.pdf 、四：https://oraclechain.io/files/eos-4.pdf 、五：https://oraclechain.io/files/eos-5.pdf )，有力地推动了EOS技术在中国的宣传和普及。
EOS编译、测试系列指南_m.png

4). OracleChain团队一直持续在全国范围内推广EOS将在全国范围内推广智能合约开发以及探索去中心化业务模式，举行了一系列的“链接Dapp时代 区块链线下技术沙龙全国行”活动，目前已经在中国四个城市举办了这个活动，分别是北京、上海、深圳、成都。这些活动都会积极邀请活动城市当地的EOS项目开发团队参与，积极推动和促进EOS生态在中国的普及。
Dapp活动_m.jpg
相关媒体报道链接如下：
链接Dapp时代-区块链线下技术沙龙全国行（北京站）圆满落幕 Dapp的黄金时代期待您的加入
http://www.jinse.com/news/blockchain/118517.html
链接Dapp时代-区块链线下技术沙龙全国行（上海站）圆满落幕 共同助力Dapp生态繁荣发展
http://www.jinse.com/blockchain/138136.html
链接Dapp时代-区块链线下技术沙龙全国行（深圳站）圆满落幕 共同迎接行业下一个风口Dapp时代
http://www.jinse.com/blockchain/148043.html
链接Dapp时代-区块链线下技术沙龙全国行（成都站）圆满落幕 与EOS一起迎接Dapp时代
http://www.jinse.com/blockchain/174881.html

5). OracleChain团队将在2018年5月在中国北京举办EOS区块链黑客马拉松，鼓励更多的EOS开发者，尤其是EOS Dapp开发者得到更多展示的机会，挖掘优秀项目，推动EOS生态快速落地。
hackthon_m.png

6). OracleChain团队将会与freeCodeCamp中国社区(link: https://www.freecodecamp.cn/ )合作，努力培养和发展EOS开发社区。 freeCodeCamp是GitHub上star第一的开源项目（link:https://github.com/freeCodeCamp/ ），覆盖全球160多个国家、2000多个城市、约200万开发者（其中中国区开发者约12万）。OracleChain团队未来将持续深化与freeCodeCamp中国社区及其运营方BlockGeek展开合作，借助其已有的开发者社群和组织模式，在全球范围内培育孵化更多EOS开发者社群，助力EOS开发生态良性发展。
fcc.png

7). EOS开发者培训一直是开发者计划中的重要元素，EOS开发者目前处于严重紧缺的状态，且有一定的从业门槛。鉴于此，OracleChain团队将深化和freeCodeCamp中国社区及其运营方BlockGeek的合作，拟在北京、深圳、上海、苏州、成都、杭州等地开展区块链培训，后续也会开发在线及游戏化的课程，培养更多EOS开发人才。

. 我们成立了OracleChain Lab（欧链实验室）开展对智能合约开发框架和去中心化业务模式的探索，并对第三方Dapp项目进行孵化。目前我们孵化的几个Dapp项目会在PocketEOS正式上线的时候，同步推向市场。

9). OracleChain团队更是组织了区块链高端技术沙龙，持续向中国的区块链项目和企业输出最核心的区块链技术，目前已经举办的三期主题分别是“智能合约安全 https://oraclechain.io/files/salon-1.pdf ”、“隐私保护中的密码学攻击 https://oraclechain.io/files/salon-2.pdf ”和“区块链最强大的工具—共识”，推动区块链核心技术的进展。
saloon.png

10). OracleChain团队拥有资深的信息和系统安全背景，正在着力为EOS生态、尤其是EOS出块节点提供完备的安全解决方案。

我们认为在看一个候选人声称未来会做什么的时候还是需要看看他目前都做了些什么。所有以上我们描述和已经做的工作，OracleChain团队都会持续地进行。未来OracleChain将更加积极参与EOS社区的各项工作：包括为EOS生态贡献代码、持续完善优化EOS开发者文档、持续推进EOS钱包和浏览器的开发、扶持EOS初创项目、举办各类活动布道EOS项目，并与合作伙伴一起培训孵化更多EOS开发者、在中国建立更多当地EOS技术社群等，与全球EOS开发者和社区参与者共建EOS大生态。

6.TELEGRAM+TESTNET: Listing of Telegram and Test-net node names for community testnet participation.
节点名称： OracleChain
电子邮箱：contact@oraclechain.io

Project introduction:

As the world’s first application built on the EOS ecosphere, OracleChain is based on the EOS blockchain technology and provides both real-world data and cross-chain data to the blockchain. We also accomplished the effective connection between data service providers and data consumers on the blockchain. As a builder of EOS oracle machines and other infrastructure, we are also one of the block producer candidates.
Product introducation:
As a decentralized Oracle Machine technology platform which based on the EOS, OracleChain adopted an autonomous PoRD mechanism to bring real-world data into the blockchain area and use this as an infrastructure to provide services for other blockchain applications. In addition, we have also developed the world's first digital wallet application PocketEOS that runs on the EOS network currently. It will interface with the numerous Dapp applications on EOS, allowing users to enter the blockchain 3.0 era directly.

Contact us:
Email：contact@oraclechain.io
Website: https://oraclechain.io
Telegram English Channel: https://t.me/OracleChainChat
Telegram Chinese Channel: https://t.me/OracleChainChatCN
Twitter： https://twitter.com/Oracle_Chain

Hey, folks! We're world’s first application built on an EOS ecosphere. you are welcomed to join our telegram group:t.me/OracleChainChat for more information!