We are extremely proud to announce that DxChain (DX) is now available on KuCoin Exchange. Supported trading pairs include DX/BTC and DX/ETH.

DxChain Team is deeply grateful for your warm and unwavering support! Now, we are running a series of DX bounty events in the next two weeks with total 55,000,000 DX prize pool for all participants! Welcome to join the trading competition and experience the DxChain product — DxBox.

Ready for the event combo? Here we go!


【Event 1】DxBox Testing Event (for first 3,000 participants)

First 3,000 participant can get the reward by finishing the event!
Time: Mar 25 — Apr 7, 2019

Rule:

1. Register DxBox (+2,000 points)

a) Start the activity “DxBox Testing Event” with @DxChainBot (t.me/DxChainBot).

b) Register the DxBox using your email address.

c) No registration needed if you’ve finished the last activity.

2. Upload a file to DxChain (+2,000 points)

a) Upload files (picture, music, document…) to DxBox.

b) Only the file uploaded during the event will be counted.

c) You can get the reward only once, uploading files repeatedly will not be counted.

3. Sign up with KuCoin (+20,000 points)

a) Finish Step 1 & 2 is required.

b) Sign up with KuCoin (https://www.kucoin.com/).

c) Send the screenshot of your account back to @DxChainBot (t.me/DxChainBot) and pass the authorization check.

d) The reward will be issued within 7 days after the activity ends.


【Event 2】YouTube Influencer Activity
Time: Mar 25 — Apr 7, 2019

Rule:

1. Finish the step 1 & 2 of【Event 2】is required.
2. Create and publish a video on Youtube to share your review about DxBox.



【Event 3】Twitter + Telegram Activity
Time: Mar 25 — Apr 7, 2019

Rule:

1. Telegram Bounty (+1,000 points per friend)
a) Get your referral link from @dxchainbot (http://t.me/DxChainBot) and share it with your friends.

b) The score will be added to your balance once your friends join the group first time by your referral link.

c) The maximum reward you can earn by referring friends is 50,000 points.

2. Twitter Bounty (+3,000 points)
a) Start the Twitter task, follow @dxchainnetwork on Twitter.

b) Retweet the designated content.

c) Send back your retweet link to @DxChainBot (http://t.me/DxChainBot).

d) Your score will be updated within 1 day.






JOIN NOW!

大家早上好哇，新的一天新的quiz！

Thanks for supporting!!

 

Morning! New Day New QUIZ!

亲爱的社区成员们，

DxChain项目成立至今，每一步脚印、每一个里程碑、每一次技术版本更新都离不开社区成员的大力支持及鼓励。我们坚信优质社区是项目发展不可或缺的助力之一。

目前，DxChain已顺利发布Testnet 2.0，在原有Testnet的基础上大幅提升了底层性能，并完美实现了智能合约的应用。Mainnet Beta上线在即，为了社区健康茁壮地发展，让更多全球用户了解DxChain独创的“三链合一”技术架构以及我们解决区块链存储与计算问题的愿景，DxChain正式启动“DX社区大使”计划！

在DxChain全球10w社区成员中，我们万里挑一，pick最有能量的你占据DxChain社区未来发展的核心C位，为DxChain项目提供持续、积极的贡献，为技术社区的壮大添砖加瓦，与DxChain一同更高效地打造最优社群！

申请传送门：

https://www.wjx.cn/jq/39962305.aspx

https://forms.gle/FVZ6FNX8vfjmHKFNA


要求：
1. 认同DxChain的愿景和价值理念，了解DxChain核心技术以及项目进展；
2. 有准备、有能力、有动力来加深对DxChain的认识，扩大DxChain在全球区块链行业的影响力；
3. 对区块链行业有一定的理解与思考；
4. 参选前请确保能够坚持在任至少一个季度，并保持活跃（中途退出、失联或未完成职责将无法获得相应奖励）
* 若参选者在任期间对DxChain品牌造成负面影响（发布垃圾信息、散布不实言论、甚至其他违法言行等），DxChain团队有权撤销其管理官职位及奖励。

职责：
1. 协助进行DxChain官方电报群管理（解答用户疑问，保持群内氛围活跃，维护群内容等）；
2. 在DxChain官方电报群内发起话题并参与讨论；
3. 关注、转发、点赞并评论DxChain社交媒体上的材料及内容；
4. 及时分享DxChain项目的进展、规划、新闻等内容至社交媒体平台及社区；
5. 每月向社区提交管理员工作小结，分享心得与体会。

加分项：
1. 将DxChain官方内容翻译成不同语言并分享至社区；
2. 制作关于DxChain的原创内容（文章、视频、表情包等）；
3. 建立并管理200-300人的多语种线上社区（视具体社区发展需求）；
4. 为DxChain全球社区发展提供有价值的创意与建议。

奖励及权益：
1. 在任期间任何社区活动奖励积分膨胀2倍；
2. 额外通证奖励；
3. DxChain专属精美礼品；
4. 率先获得最新项目资讯以及技术进展；
5. 有机会与DxChain工程师进行线上技术交流；
6. 有机会优先参与DxChain线下见面会；
7. 更多神秘权益。


由于相关法律制约，以下地区用户将无法参与本次“DX社区大使”计划：
美国，加拿大，新西兰，泰国，巴尔干半岛，白俄罗斯，缅甸，科特迪瓦，古巴，刚果民主共和国，伊朗，伊拉克，利比里亚，朝鲜，苏丹，叙利亚，津巴布韦，中非共和国，克里米亚，黎巴嫩，利比亚，索马里，南苏达，委内瑞拉，也门，阿尔巴尼亚，波斯尼亚和黑塞哥维那，科索沃，马其顿，摩尔多瓦，塞尔维亚，布隆迪，柬埔寨，埃塞俄比亚，几内亚比绍，阿富汗，吉尔吉斯斯坦，老挝，马拉维，马来西亚，马里，莫桑比克，斯里兰卡，坦桑尼亚，东帝汶，特立尼达和多巴哥，突尼斯，土库曼斯坦，乌干达和乌兹别克斯坦。


免责声明：
1. DxChain官方保留本活动最终解释权；
2. DxChain团队保留单方面对本次活动包括奖项设置、评选标准、奖项等规则进行调整的权利；
3. 请密切关注DxChain发布的相关公告，注意甄别虚假消息、钓鱼网站、钓鱼邮件、克隆账号等。DxChain对用户因个人轻信虚假消息所产生的一切损失免责；
4. 涉及违反法律法规、活动规则、侵犯他人利益等行为将被取消参与资格；
5. 如对本次活动有问题请联系 marketing@dxchain.com。

Dear DxChain Community,

Since the establishment of the DxChain project, the growing global community witnessed every step, every milestone, and every technical version update we’ve made so far. We can’t make it without the kind support and encouragement of DxChain community members. DxChain Team believes that the decentralized community is indispensable for project development and can promote DxChain to new markets and stages in countries worldwide.

April 2019, DxChain Testnet 2.0 has been launched successfully, which has greatly improved the infrastructure performance based on the Testnet 1.0 and perfectly implemented the smart contract. Currently, Mainnet Beta is around the corner, in order to help the community grow sturdy and spread the DxChain’s innovative “Chains-on-chain” technology architecture and vision which solving blockchain storage and computing problems, DxChain Community Ambassador Program is coming!

From more than 100,000 community members, we will pick the most energetic and talented members to help create a better DxChain Community! Fat rewards are waiting for you!

Click here to apply: https://forms.gle/FVZ6FNX8vfjmHKFNA


Requirement:
1. Acknowledge DxChain’s vision and concept, understand DxChain’s core technology and project progress;
2. Willing to help expand DxChain’s influence all over the world;
3. Have an understanding and thinking of blockchain;
4. Make sure you can be incumbent for at least 3 months and keep active (you will not get rewards if you quit, out of touch or fail to complete your duties)
* The ambassador could be disqualified and will not receive any rewards if he/she made a negative impact on the project (e.g. promotes violence against or directly attacks or threaten other people in the group).


Responsibilities:
1. Help official admins to manage the Telegram group (e.g. answer questions from fans, keep the group active, report spams, ads, scams or NSFW messages);
2. Create fresh topics to encourage fans to discuss in telegram group;
3. Follow, re-post, like and comment on the content on DxChain social media platforms;
4. Help promote community events and project updates through social media platforms and in the community;
5. Submit weekly reports and monthly summaries to share with DxChain community.


A Plus:
1. Translate and spread DxChain official content in your language and make influences in your country/networks;
2. Make original content (video, article or memes) for DxChain Project;
3. Create 200–300 members DxChain online group on required platforms (depends on the community development);
4. Provide creative ideas and suggestions for the development of the global community.


Rewards and benefits:
1. Earn two times reward for community events during your tenure;
2. Earn extra DX token rewards;
3. Get DxChain delicate gifts;
4. Get the latest project news and technology progress in advance;
5. Have the opportunity to conduct online technical discussions with DxChain engineers;
6. Have the opportunity to participate in the DxChain offline meetups;
7. More mysterious rights.


Due to legal constraints, participation in this event is restricted in the following countries and regions: The United States of America (USA), Balkans, Belarus, Burma, Cote D’Ivoire, Cuba, Democratic Republic of Congo, Iran, Iraq, Liberia, North Korea, Sudan, Syria, Zimbabwe, Central African Republic, Crimea, Lebanon, Libya, Somalia, South Sudan, Venezuela, Yemen, Albania, Bosnia & Herzegovina, Kosovo, Macedonia, Moldova, Serbia, Burundi, Canada, Cambodia, Ethiopia, Guinea-Bissau, Afghanistan, Kyrgyzstan, Laos, Malawi, Malaysia, Mali, Mozambique, New Zealand, Sri Lanka, Tanzania, Thailand, Timor-Leste, Trinidad & Tobago, Tunisia, Turkmenistan, Uganda, and Uzbekistan.


Disclaimer:
1. DxChain reserve the right of final explanation for the activity;
2. The DxChain team reserves the right to unilaterally adjust the rules, including awards, ranking criteria and other rules;
3. Please pay close attention to the official announcements by DxChain, be aware of screening fake news, phishing websites/emails, and cloning accounts. DxChain is excused from all losses incurred by users;
4. Acts involving violations of laws, regulations, rules of activity, and interests of others will be disqualified;
5. Please contact marketing@dxchain.com if you have any questions about this event.


Original Post: https://blog.dxchain.com/dxchain-community-ambassador-program/

2018年12月底，DxChain Testnet顺利完成了开发和测试。短暂新年假期后，版本名为Alps Mountains的测试链及SDK于2019年1月7日正式发布。

这是继2018年9月底发布的Testnet Beta - Andes Mountains 后，DxChain项目研发的又一重要里程碑！此次发布再次证明了DxChain研发团队如期交付产品，并按计划实现其所承诺的区块链存储的能力。

同时，随着DxChain测试链一起发布的，还有DxChainPy SDK及首款区块链云存储产品 - DxBox。测试链应用产品及SDK的发布，标志着DxChain将能够为区块链开发者、研究者及各行业合作伙伴们提供安全的去中心化数据存储及文件管理解决方案。

https://v.qq.com/x/page/v0827yvnvkg.html


Alps Mountains关键技术突破

在上一次发布的Testnet Beta (Andes Mountains) 版本中，DxChain实现了数据存储链的基本功能，包括交易、文件存储、区块浏览器及产品的规模化测试。在Testnet Beta发布后的3个月中，DxChain研发团队继续专注于数据存储链的功能开发。此次发布的DxChain Testnet与之前版本相比，其产品功能及性能都有了极大提高，其中关键的技术突破包括：

1）实现对不同交易类型存储合约的完全支持：在此次版本中，DxChain测试网能够支持三种类型的存储合约相关交易，包括：签订合约，修改合约及存储证明。目前，链上所有节点都将可以作为存储委托方或存储供应商参与到分布式的存储服务中。

2）确定最终的存储证明共识算法方案：在上一次发布中，DxChain已经初步实现了通过引入并优化Merkle trees算法完成存储证明。在此次版本中，通过大量测试和优化，我们确定了最终的存储证明和存储纠删码算法方案。目前，有效的验证者可在无需拥有原数据文件的情况下，通过存储校验，从而实现海量文件在极短时间内的校验完成，极大提高了系统效率及可靠性。因此，当前版本的测试网可在确保数据一致性的同时，显著降低数据冗余。

3）实现存储委托方对供应商的自动选择：我们设计了高效可靠的供应商自动选择算法以满足不同条件下对供应商的选择需求。算法会综合考虑存储供应商候选人的存储费用、存储可靠性、网络带宽条件等，从而挑选出与委托方特定需求相匹配的最佳供应商。

4）实现稳定的存储合约交互过程：在此次版本中，我们还重点优化了存储合约协商和修订的交互协议，最终实现了在正常及异常通讯场景中协议稳定度和效率的大幅提升。

5）实现有效的隐私保护：DxChain测试网在数据加密过程中使用了先加密、再分片的算法，从而极大增加了信息安全，以实现对用户隐私的保护。同时，通过应用公钥和私钥签名技术，用户存储在DxChain测试网上的数据也能得到所有权保护。

6）优化文件上传过程：相较于上一次的发布，本次版本在文件上传的效率和性能方面提升显著：算法执行效率提升54%，内存占用减少60%。



DxChain Testnet应用产品隆重登场

除了DxChain Testnet的功能增加、算法优化及性能提升以外，我们还更新了DxChain Testnet区块浏览器，并发布了DxChainPy SDK工具，及一款全新的应用产品DxBox - 首款去中心化的区块链云存储产品。


在此次发布中，我们优化了DxChain Testnet浏览器，并增加了与测试链新功能对应的浏览器功能。例如，新浏览器能够支持所有类型的合约及交易转账详细信息的查询，包括文件合约ID，初始设置，当前状态查询等。

目前，用户可在新浏览器中找到四种不同类型的存储合约状态：
(1) 进行中 (Ongoing) ，表示该存储合约处于从初始化到终结之间的有效使用期限内；
(2) 已验证 (Verified) ，表示该合约已通过链上验证，且存储供应商已获得相应酬劳；
(3) 空闲 (Vacant) ，表示该合约已创建成功，但存储委托方尚未上传任何文件，因此存储供应商无需提交存储校验；
(4) 失败 (Failed) ，表示存储供应商在合约过期前无法提交有效的存储校验。



DxChainPy是使用Python对DxChain API进行封装的工具包，是DxChain对外发布的首个SDK版本。目前，全球开发者都可以通过DxChainPy查询到一系列DxChain存储链的信息，包括：网络状态，共识信息，钱包余额，矿工状态，存储供应商和委托方的设置及详细信息等。

此外，DxChainPy能支持文件上传、下载及删除等基础功能。这意味着，通过调用DxChain API，区块链开发者将能查询到DxChain Testnet的链上数据信息，并通过其提供的交易和文件上传/下载功能创建自己的区块链应用。

更多关于DxChainPy SDK的信息，敬请访问DxChain官方Github账号 (https://dxchainapidoc.readthedocs.io/en/latest/index.html)。



与DxChainPy SDK同时发布的，还有一款全新的区块链应用产品 - DxBox。

DxBox是基于DxChain Testnet研发的首款去中心化的区块链云存储产品。目前，DxBox可以为全球用户提供安全的、具隐私保护的区块链云存储服务。

根据DxChain的系统设计，以DX通证为基础的经济激励机制被用来鼓励更多节点成为存储矿工，利用其闲置的存储算力为存储委托方提供去中心化的存储服务，并由此赚取相应的收益。鉴于目前所有测试节点都是由DxChain项目组创建和维护，我们将为DxChain社区及支持者提供免费的DxBox体验资格，并赠送 5 TB 的免费区块链云存储体验空间（有效期详情敬请关注DxChain社区公告）。

Thank you all for your interests in DxChain! We are aware of more than 140,000 supporters all over the world who would like to participate in this project. Thanks to everyone for being so patient and supportive!

We have been working hard to ensure a fair public sale process. Please stay tuned to the future updates and announcement about the public sale details.


NOTICE
1) There is and will be NO “Pre-sale”. We haven’t released any public sale plans before. Be aware of scammers.
2) We will NOT cancel public sale.
3) We will NOT run a dutch auction and will NOT encourage a gas war situation.
4) DxChain’s authorized admins will NEVER ask anyone to send ETH to any wallets. Don’t give your ETH away in private message.


TIMELINE
All people around the world who want to participate in the public sale will have to pass the KYC. The KYC process will start on Monday 2018/07/09 12:00:00 pm PST time, and will last for 2–3 weeks. More details and instructions about how to participate will be released very soon.

* You have to join at least one of the official DxChain Global Telegram Groups to be able to participate in the KYC.

Public sale will start in either late July or early August, depending on the KYC progress.


WHITELISTING
We have been working incredibly hard to explore directions that would allow broader participation, however we cannot guarantee allocations for all supporters due to the growing interest in DxChain and limited token supply for public sale.

A probabilistic approach will be used to make the token distribution as fair as possible, and a whitelist score system will be designed to provide supporters who really care and contribute to DxChain community more opportunities to get involved in the public sale.

Detailed information will be announced very soon, please stay tuned. Some of our official channels include:

Telegram News Channel (look for the pinned post): https://t.me/dxchainchannel
Telegram Groups (look for the pinned post)
DxChain Global — New (more than 40K members) : https://t.me/dxchain
DxChain Global (almost 100K members): https://t.me/dxchain1
Twitter (almost 27K subscribers): https://twitter.com/DxChainNetwork
Website (watch out for fake spellings): https://www.dxchain.com/

With regards to DxChain:
A Decentralized Big Data and Machine Learning Network Powered by a Computing-Centric Blockchain.