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    brianliu

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    以下为 8 月 26 日- 9 月 8 日项目进展双周报,包含#项目开发进展#、#社区动态更新#两项内容,供社区成员们查看,感谢大家对我们一直以来的热切关注!

    项目进展双周报(8/26-9/8)

    项目开发进展

    • Ultrain 内核

    1. UDP协议应用层封装以及惩罚交易化完成基本功能开发及测试;

    2. 矿工奖励迁移至主网,增加主网出块以及奖励支出监控;

    3. 设计资源交易所,方便资源流转,帮助资源合理配置;

    4. 客户端工具增加支持多钱包联合完成交易签署功能;

    5. 主网节点完成功能更新,开源代码库发布v2.1.0源码更新。

    • Ultrain 产品生态

    1. 币安DEX与Ultrain主网完成功能对接,完成测试后开放充提币操作;

    2. 数字资产发行平台完成基础功能和框架开发, 准备进行DAPP开发;

    3. 社交化电商首期项目启动,完成需求确认,开发进行中。

    • Ultrain 开发者套件

    1. UltrainOne发布2.4版,支持UGAS余额查询与转账,优化APP服务接口请求效率及钱包创建、DAPP使用流程,添加可视化进度的热更新功能;

    2. 更新U3测试用例及开发者文档,添加updateauth接口,支持用户自主修改私钥。

    社区动态更新

    • Ultrain祝全体社区成员中秋佳节快乐,阖家团圆!

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    • Ultrain首席架构师在线解读“代码开源”

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    北京时间8月26日晚9点,为帮助大家更加清晰地了解Ultrain代码开源的意义和众多知识点,Ultrain超脑链首席架构师沈宇峰针对「代码开源」进行了一场中英文社区同步的AMA(Ask Me Anything)活动,一一解答此前收集精选的几大社区成员们关于代码开源的问题,戳此处代码开源意味着什么?超脑链首架在线解读答疑了解详读本次AMA活动实录(中英文对照)。

    • 超脑链首席密码学家详解「零知识证明与隐私保护」

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    9月2日晚9点,为帮助大家能更清晰地了解Ultrain零知识证明和隐私保护的众多细节,Ultrain超脑链首席密码学家Husen王虎森于Ultrain海内外社区展开了一场有关「零知识证明与隐私保护 」的线上AMA(Ask Me Anything)活动,戳此处超脑链首席密码学家详解:零知识证明与隐私保护了解本次AMA活动实录(中英文对照)。

    • Emma受“光芒”时尚社区采访,解读自身蜕变

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    众所周知,Ultrain联合创始人Emma是名副其实的“跨界”女王,曾有多次成功转型经历。近日,Emma与美团副总裁朱文倩等著名互联网圈女性共同受著名时尚社区“光芒”采访,表达自己对互联网行业的看法,并解读自身蜕变。详情请戳互联网女子图鉴 | 我觉得自己从来没有这样年轻过

    • 公链的商业突破:Emma对话前CoinDesk亚洲战略编辑

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    9月9日晚9点,Ultrain联合创始人Emma与前CoinDesk亚洲战略编辑田川共同进行了一场有关「公链的商业突破」的深度英文直播对话,Emma在直播中重点分析了目前公链的生态格局,介绍了Ultrain目前的战略,并初步透露了部分尚未正式公开的商业合作进展,内容干货满满,感兴趣的你一定不要错过。

    以上便是 Ultrain 8 月 26 日至 9 月 8 日的项目进展,敬请期待此后的更多精彩内容!

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  • B
    brianliu

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    继此前获得中华人民共和国国家版权局软件著作权后,Ultrain超脑链独立开发的「 超脑基础公链软件V1.0」再次经由浙江省软件行业协会评估,被认定符合《进一步鼓励软件产业和集成电路产业发展的若干政策》和《软件产品评估标准》有关规定,荣获《软件产品证书》。

    《软件产品评估标准》是由相关软件行业协会、企业、评价机构基于市场和行业发展需要而共同制定的,有利于发挥行业自律和示范作用,促进软件和信息技术服务业持续健康快速发展,促进软件产品的规范化生产和销售。本标准依据国家对软件产业发展的相关文件,结合软件产品研制的实践,以及软件行业协会服务企业的成功经验,对软件产品的总体、生产、文档、评估、评估机构以及监督提出了规范性要求,为从事软件开发和服务企业提供了软件产品管理规范。

    经认定符合以上各规定的企业,才能获得《软件产品证书》。此证书是Ultrain雄厚技术实力的有力进一步背书,它代表着国家权威机构对于我司在企业资质、科技创新、自主研发能力等方方面面的认可,也让我司自助独立研发的软件成果获得了独立的知识产权,对于日后法律保护、税收、技术发展等多方面起到了深远的作用。

    此后,Ultrain将继续载誉前行,不断进行技术创新,提高企业核心竞争力,持续为用户提供行业领先的产品与服务,也请大家拭目以待。

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    brianliu

    Ultrain超脑链已于近期完成网络环境的优化,并从即日起正式启用新域名ultrain.info,将io后缀切换为info后缀,该规则适用于所有二级域名。与此同时,API服务接口也由ultrain.services迁移到ultrain.info下(详见开发者文档 https://doc.ultrain.info/#/docs-cn/developer/environment?id=节点信息)。原域名仍可正常访问,将自动跳转为新域名。

    Ultrain超脑链将持续努力为大家提供更加安全、稳定、快速的访问服务,感谢您一直以来的支持!

    posted in 资讯 read more
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    brianliu

    替代文字

    9月9日晚9点,Ultrain联合创始人Emma与前CoinDesk亚洲战略编辑田川共同进行了一场有关「公链的商业突破」的深度英文直播对话,Emma在直播中重点分析了目前公链的生态格局,介绍了Ultrain目前的战略,并初步透露了部分尚未正式公开的商业合作进展,内容干货满满,感兴趣的你一定不要错过。

    以下为本次直播实录整理👇

    1

    Q:你如何评价当今的区块链行业?

    A:在我看来,这个行业还处在非常早期的阶段。每个人对这个行业的看法都不一致,如果你问人们什么是区块链,每个人都会基于自己的个人背景给出不一样的答案。而我们Ultrain是一个公链3.0项目,我们的愿景和目标是通过区块链技术真正赋能这个社会,让更多的人使用这项技术。

    2

    Q:你提到Ultrain是一个公链公司,但很多人认为公链应该由社区维护而不是由中心化的公司来运营,对此你怎么看?

    A:我认为,对于公链来说,能真正实现商业的变革,让区块链技术像其它技术一样给社会商业模式带来巨大的改变,这一点非常重要。我的合伙人们都是来自阿里巴巴、蚂蚁金服的技术骨干,他们都曾为私有链或联盟链服务,之所以要离开随即开始在Ultrain创业,是因为他们相信公链才是区块链技术的未来,他们想让公链技术更加安全、有效率,这非常难,但我认为我们已经实现了。在我们眼里,去中心化的精神非常重要,只有真正去中心化的区块链技术才能实现最低的信任成本,赋能众多行业。

    我一直都很敬佩这个行业的一些领军者,比如Vitalik。最近我在柏林听了Vitalik的一场圆桌讨论,圆桌的主题就是如何定义成功?Vitalik相信以太坊能成功的一大要素或者说标准就是更多的人使用,更多组织机构去使用他们的技术,而Joseph Lubin表示区块链可以实现全球协作这样的一个美好愿景。我非常同意他们的观点和愿景,然后如何到达那一步也许是我们最需要关心的。

    我认为,最终,就像你说的,公链应该是完全去中心化,不被任何组织架构所限制的;但是由于我们还在非常早期的阶段,大众不知道什么是区块链,也不知道区块链能产生什么价值,这时候,是需要一些领头羊(早期贡献者)去推动的,需要这些人去告诉大众这项技术究竟能够为社会带来哪些改变。

    我们相信区块链能带来真正的价值,并一直在努力实现这项技术的商业落地突破。对于以后的事,谁也不敢妄加定论。或许我们就是冲在前线的将士,为这项事业鞠躬尽瘁,不管结果如何,这个行业都需要我们去奋力拼搏。有段时间互联网+非常火,“互联网+”和“+互联网”是非常不同的,类比与此,也许联盟链可以很好的实现“+区块链”的场景,如银行见结算优化,供应链条中某些环节的优化,等等,而我们认为和私有链和联盟链相比,只有公链能真正能实现“区块链+”,它能为商业模式带来彻底的变革,为众多用户场景创造全新的解决方案,去优化某个场景的体验,给用户解决一个刚需的痛点,成为爆款应用。

    大多数互联网的应用都在解决用户场景问题,作为一个应用的创始人,你必须要先思考想解决什么场景中的一个刚需的问题,再思考新技术可以为你的应用带来怎样的变革,最好这个场景是一个绝对的痛点,并且是高频的需求。很多人说DeFi是区块链的杀手级应用,我不否认这点,但是我们的市场同样非常关心交易和消费场景,比如电子商务、在线媒体娱乐消费,和找到其他类似的场景。

    3

    Q:你认为哪些上线了Ultrain或是即将上线Ultrain的DApp会是杀手级应用?

    A:我认为如果我们真正想要实现变革,就必须和一些传统和互联网行业的领军企业合作,比如说在奢侈品行业、时尚单品行业。打个比方,我现在手里拿着的这双鞋就来自YOHO!的UFO频道,是国内第一潮牌媒体零售平台Yoho!的一个C2C交易产品,上面每一双鞋都带有一个专属的NFC芯片。现在球鞋交易在国内非常热门,很多鞋都有非常高的收藏价值。我手里这双鞋当时买下的价格是400美元左右,如今可能已经更高了。我从这个平台上买下这双鞋,只要用手机打开app扫一扫这个NFC芯片,就可以看到这双鞋的鉴定记录甚至鉴定视频,所有信息都是记载在我们的公链上的,以此来保证这双鞋是正品,与此同时链上还记载了整双鞋的生命周期,所有流转记录都被永久记录了下来。对于买家来说,整双鞋的流转过程记载在链上这一点非常重要,他们可以从源头开始追溯它的可靠性。

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    除了给用户带来真正的益处之外,我们的区块链技术也带给企业非常大的帮助。YOHO!有货是一个国内领先的潮牌商品平台,他们非常希望知道每双球鞋的主人是谁、以及哪些人对于同一批单品有相同的爱好。在今天的互联网世界,获客成本是相当高昂的,但YOHO!却可以通过我们的区块链技术去获取这些重要的数据,获取一双鞋多次流转后其他平台用户的流量,并得到精准的用户群体的关系网络,因此他们会很乐于去使用我们的技术进行变革和进一步更深入的合作。

    4

    Q:那这些用户意识到了区块链技术的作用吗?

    A:有些人知道,有些人不知道。但我认为他们并不是说非要明白这一点。我们经常会说区块链最大的阻碍就是很能难让用户理解加密数字存证是什么,让他们去注册和使用。我们会根据场合通过巧妙的设计最大程度降低最终C端用户的入门门槛和感知。我们公司有来自阿里非常资深的产品经理,其实我们要做的是做一个好的产品,用户只需要觉得方便,有趣,并不需要知道是用了什么技术,越复杂的技术,理应带来是用户越简单的感知。

    打个我们很快上线场景的比方,是和国内最大的进口化妆品品牌渠道拥有者合作的。如果你在我们开发的应用上购入一支口红,并通过社交网站分享给了其他人,倘若对方也购入,你就会获得一定的积分,并同时成为这个平台的一个分销渠道。这种关系是建立在区块链上的,这个激励体系也完全是由区块链自动形成的,所有规则都会被写入智能合约。

    然而你作为用户,并不需要知道这一切是由区块链技术达成的,你只需要知道你获得了一些有用的积分,可以通过它去兑换其它好东西、或是把它转换为金钱。我们目前正在对接的企业客户有各种各样的商家巨头,从球鞋到化妆品,从红酒到奢侈品。这些企业都会用我们的技术去创造一种全新的用户参与模式和客户忠诚度计划管理系统。

    如果你想要使用我们的技术,就需要支付我们服务费,从而让自己的应用跑在我们链上。就像YOHO!的UFO这个球鞋交易平台,它是我们的客户,支付服务费以使用我们的算力。而有意思的是比如该化妆品公司是我们的B2B客户,他会付我们服务费运行相关体量的应用,而如果你是他们客户,在这个平台上买了一双口红,你其实也同时创建了一个我们链上的资产钱包,所以事实上我们叫这个为B2B2C模型。我们通过自己独特的强大的行业资源优势,可以通过这样的模式快速扩张。当然,核心是我们在发展的每一步都在为我们的客户,和他们的最终C端用户,提供一种新的价值。

    5

    Q:你们和行业领导企业合作的战略是什么?

    A:首先,我们是真正为这个生态体系创造了价值的。我们可以为每个用户创造钱包,所以我们可以通过和这些优秀企业合作,自然而然地扩大我们的用户群体。我们现在合作的最小的企业也是拥有上百万用户,大部分都是6千万到上亿用户的规模,这也就是我为什么说我们今天要讲的如何破局,我们会有自己的思考。我们只会和每个细分行业的龙头企业合作,这些企业在自己的垂直领域里已经是佼佼者,并会一直持续地运维下去。我们会去探索哪些企业运转环节上可以对他们起到帮助,并会和他们一起打造独一无二的DApp。

    我想强调的是这当然不是简单的事!是很难的事情。需要有资源认识这些创始人们,并有商业理解力所以人家会听你讲,征求和尊重你的意见,认可这是一件有价值的事;再要说服每个企业的相关部门的负责人,让他们也看到这样的价值并且愿意配合和尝试;再要头脑风暴出一个足够具体的场景去实施一种尝试;再有我们能提供技术支持能力和快速落地的开发对接能力,无数的中间协调环节。所以大家会理解为什么我们也会选择行业龙头去合作了,而幸运的是,这中间每一个所需的流程的资源和能力我们都具备,不论过程多么艰辛,但是路径非常清晰。所以我们只需努力去做到,并为行业树立标杆。

    就像我前面说的,目前我们仅在消费领域合作的就有四种类型的产品,包括酒类、奢侈品、潮流艺术品、进口化妆品等。这些商品的价值都非常高,这时它们的真实可靠性就非常重要。我们并不单单和电商公司合作,同时也和许多传统的大品牌公司合作,对于它们来说,要融入移动互联网世界,本身就需要对自己的系统进行升级换代,实现很多改变,那为何不继续和区块链结合?区块链融合移动互联网,实现更优的CRM系统,可以让这些企业更加了解他们的客户,并与其达成更紧密的关系。我曾经和许多人聊过这个话题,我从未听过一个人说“我不想要这个,我不感兴趣”,大家都说“哇,这非常有意思,我要怎么才能做到”。有些企业的规模很大,业务非常复杂,我就需要和他们的创始人、CTO、市场团队等等人员进行交涉,共同达成合作。但是我没有见过任何我身边的创始人朋友直接和我说,Emma这个我不感兴趣。我认为这是一个非常好的现象。

    很多人即便是身处我们行业内,也不相信这项技术有真实的应用价值,90%的人则只相信数字货币和数字货币衍生一些金融属性应用的力量,但我们不一样,一直以来我们都坚信区块链本身对真正商业社会或者说用户每天生活场景衣食住行需求优化的价值。我们认为只有当这项技术产生真正的对社会有用的价值,而不再只是供于投机,我们这个市场才能长久地存在、壮大。

    对于任何技术来说,最重要的就是让更多的人使用它,发挥它的实用性价值。我们的企业客户也有他们的用户,他们的用户也将使用我们,而这其中大量的收入将归于我们的共享信任计算节点们,他们将因提供了算力而受益颇丰。顺便提一句,我们现在已经有400名共享信任节点,今年年底前我们的目标是实现1000个。我们是真正的去中心化公链,每条单链的TPS达到1000,并可进行无限水平扩容,已经解决了去中心化、安全性和效率并存的问题,并为了配合商业落地需求做了大量的链上组建如隐私证明,搜索等等。我们的技术可以说是非常扎实的,并且在技术支持上是非常给力的,可以为企业提供非常好的个性化支持和开发指导。

    我再举个小型合作伙伴的例子,我们目前正在和一个国内最大的宠物社区之一“狗狗去哪儿”合作,他们已经有大几百万活跃用户,在北京有多家线下高端宠物酒店生活中心。它和我们合作开发了一个“流浪宝贝”项目,它是专门为被遗弃的动物们打造的平台,可以提供在线领养、或是在线捐赠服务,我们的区块链技术保证了每笔捐赠的透明性,从而为小动物们提供了帮助。而因为狗狗去哪儿和萌兽派自己拥有完整的用户,社区,电商线下服务场地和能力,从而才可以实现全链条资金流转的透明的可能。因为他们创始人在行业内10年以上的从业经验,也深深被我们为流浪动物救助带来的新的可能性所打动,愿意投入资源和人力物力一起尝试这个创新的领域。

    我们希望通过区块链技术为社会创造积极的影响,也希望让更多流浪动物们免于无家可归的困境,同时也让大家看到这项技术的正面作用。而不仅仅是赌博,游戏,和很多高风险的应用。当我和海外最大的动物救助慈善组织沟通我们可以慰他们带来的变革时,连最保守的德国人都非常喜悦,因为解决了传统慈善救助不透明的痛点,他们大力支持愿意快速配合落地。我们很快可能会把此应用落地到一家全球比较有影响力的动物救助组织当中去,这对整个行业都将是一个震撼。

    6

    Q:你们到年底前有什么目标吗?比如希望达到多少DApp在链上?

    A:我们最初的目标是希望实现100个DApp在链上跑,但是我必须要强调的一点是,DApp的数量并不是最关键的,关键在于这个DApp是否优质。如果一个DApp足够优秀,可以获得上百万的用户,那么它一个DApp就胜过100个DApp,最关键的就在于它能在自己的业务场景里做到多好。我们未必会在现在币圈行业里面去选择我们的DApp,我们会找到好的应用场景,帮助他插上区块链的翅膀,大家一定看过我们行业目前DApp报告,我也无需多评。要破局就一定要走不同的道路。

    7

    Q:如果大家想要使用Ultrain的DApp,要通过什么样的方式呢?

    A:大家可以下载我们的UltrainOneAPP,在APP页面内使用我们链上的这些DApp。因为我们刚刚结束映射,9月底十月初到年底前我们将会有一大批全新的DApp上线,希望大家耐心等待这些应用的诞生,到那时大家就能明白,Ultrain到底是一个怎么样的公链,我们如何为这个行业带来新的价值。

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  • B
    brianliu

    替代文字

    At 9:00 pm on September 2nd, the Chief Cryptologist Husen Wang of Ultrain launched an online AMA (Ask Me Anything) event in the community of Ultrain, so that everyone can be clearer understanding of the details of Ultrain's zero-knowledge proof and privacy protection.

    1.Q: The integration betweenzero-knowledge-proof and existing commercial pain points?
    A: zero-knowledge-proof can be applied with manyscenarios.
    In public chain, companies or individuals arewilling to store data digest as proof-of-existence, rather than submitting theplaintext directly, for the reason that the public chain as a publiclyaccessible database will bring huge Risk of data leakage, which may be thecompany's products, volume, cash flow, location, or personal information suchas purchase records, time and amount, preference.
    For example, if WalMart uses public chain forsettlement or simple provenance, it can save a lot of cost and improvecredibility compared with federated chain such as IBM hyperledger, but withoutprivacy protection, all WalMart's daily comercial activities will be completelyexposed to competitors. Taking wine as an example, the number of registrationson blockchain is basically same with the quantity of purchased ones, andcompetitors can very easily identify which wines are selling well. If thesettlement is also done online, the transaction amount and profit margin can becalculated, and then the detailed cash flow with the upper and lower supplychains. These are all simple data analysis techniques.
    The zero-knowledge-proof can greatlyalleviate the above problems. It not only protects the product details, butalso the cash flow of all transactions.

    2.Q: We are now searching, shopping, and eventalking about the APP records, how to solve the data privacy issues?
    A: At present, using the Internet these days,those who have no awareness of privacy protection, is basically streaking. Allbehaviors are accurately monitored by major service providers such asGoogle/Facebook/Alibaba/Tencent, and even small apps can steal the behaviorsand tendencies of various users. All of this is to better understand the user,accurately push the advertisments, but also bring about data abuse, tracking,leackage, or even political use and misguidance.
    The reason for this phenomenon is that thegoverments is not clear about the privacy regulations and implementation. Forexample, on Android phones, some powerful application vendors require usershave to grant certain permissions such as contacts and photos, read and writeaccess. The cost of data theft and monitor is too low, which makes it difficultto enforce a standardized user authorization access system.
    However, in China, as the domestic systembecoming in line with foreign countries, and domestic manufacturers aregradually moving abroad, they may gradually become more standardized, and mayrequire more standardized use and acquisition of user information. For example,it is required that user information can only be obtained and retained in aminimal amount, cannot be shared without permission.
    ··

    3.Q: What are the advantages of the Ultrain'szero-knowledge-proof system? How do you achieve true anonymity and privacyprotection?
    A: The Ultrain zero-knowledge-proof system hasfour main advantages: low-cost package around serveral thounds usd per year(Ethereum is about 6 usd per transaction), which can easily support anybusiness development kit, one-click proof verification, support for ERC20 ,ERC721 and other templates. Users basically only need to clearly definethe business logic, and can easily use it without knowing any technical detailof zero-knowledge-proof. It now supports the user's personal data, such asproof of product information (such as the jewels, shoes, medical records,etc.), the anonymous transfer of assets (can be used to achieve cash flowtransfer scenarios, such as Auction).

    4.Q: Does the Ultrain zksnark have an example,how small can the proof size be?
    A: We showed two scenarios on github, namelyjewelry and cash flow.Https://github.com/wanghs09/zkp9ff2b8d9/wikiYou can go to our related website to see andask questions.The proof size is about 256 bytes.

    If you have more questions about zero-knowledge proof and privacy protection, you can add ultra-in customer service to submit the questions and ask the project team to find out more about Ultrain.

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  • B
    brianliu

    alt text

    9月2日晚9点,Ultrain超脑链首席密码学家Husen王虎森于Ultrain海内外社区展开了一场有关「零知识证明与隐私保护 」的线上AMA(Ask Me Anything)活动,以便大家能更清晰地了解Ultrain零知识证明和隐私保护的众多细节。

    以下为本次AMA活动实录整理(中英文对照)

    供社区成员参考了解👇

    1

    Q:零知识证明和现存商业痛点的契合点有哪些?

    A:零知识证明可以与诸多场景结合,比如区块链上,企业或者个人会乐意把数据通过存证的方式传上来,而不是直接提交明文,就是担心公链作为公开访问的数据库会带来巨大的数据泄露风险。这里泄露的可能是,公司的业务量、业务对象、现金流,个人的消费对象、消费金额、位置等一切日常行为。

    比如沃尔玛假如采用公链做结算或者简单的溯源,虽然可以大量节省自建联盟链的成本、提高公信力,但是没有隐私保护的话,所有沃尔玛的日常商品的流量将完全暴露给竞争对手,比如其中葡萄酒的登记数量就基本等效于进货量,竞争对手可以非常简单地识别出哪种葡萄酒销量好。假如做链上结算的话,交易金额和利润率也可以推算出来,进而可以推出详细的跟上下供应链的现金流。这些都是简单的脱敏技术解决不了的。

    零知识证明可以极大缓解上述问题,让跟区块链的结合不再有上述担忧,它不仅可以保护交易对象,还能保护交易的现金流。

    Q: The integration betweenzero-knowledge-proof and existing commercial pain points?

    A: zero-knowledge-proof can be applied with manyscenarios.

    In public chain, companies or individuals arewilling to store data digest as proof-of-existence, rather than submitting theplaintext directly, for the reason that the public chain as a publiclyaccessible database will bring huge Risk of data leakage, which may be thecompany's products, volume, cash flow, location, or personal information suchas purchase records, time and amount, preference.

    For example, if WalMart uses public chain forsettlement or simple provenance, it can save a lot of cost and improvecredibility compared with federated chain such as IBM hyperledger, but withoutprivacy protection, all WalMart's daily comercial activities will be completelyexposed to competitors. Taking wine as an example, the number of registrationson blockchain is basically same with the quantity of purchased ones, andcompetitors can very easily identify which wines are selling well. If thesettlement is also done online, the transaction amount and profit margin can becalculated, and then the detailed cash flow with the upper and lower supplychains. These are all simple data analysis techniques.

    The zero-knowledge-proof can greatlyalleviate the above problems. It not only protects the product details, butalso the cash flow of all transactions.

    2

    Q:我们现在搜索的,购物的,甚至说的话都被APP记录监听,怎么解决有关数据隐私方面的问题?

    A:目前国内的互联网,对于没有隐私保护意识的人,基本就相当于裸奔,一切行为都被各大BAT厂商精确监控,甚至小的app也能窃取到各种用户的行为和倾向。这一切都是为了更好了解用户,精准推送广告或者其他变现。

    这种现象的原因,一方面是国家对隐私的本身法规的制定和实施不太明确,比如在安卓手机上,有些强势的应用厂商要求用户必须在开启某些权限才能使用,比如通讯录和照片的读写访问。在国内用户的数据窃取实施成本过低,作恶代价也低,导致规范的用户授权访问体系很难建立起来。在苹果系统下,这种情况会好些。

    不过随着国内制度与国外接轨,以及国内厂商逐渐走向国外,也有可能会逐渐变得更规范,可能需要更规范的用户信息利用和获取方式。比如,规定只能最小化地获取和保留用户信息,假如需要的话,不是靠窃取,而是通过多个厂商协同计算的方式得到用户画像。

    Q: We are now searching, shopping, and eventalking about the APP records, how to solve the data privacy issues?

    A: At present, using the Internet these days,those who have no awareness of privacy protection, is basically streaking. Allbehaviors are accurately monitored by major service providers such asGoogle/Facebook/Alibaba/Tencent, and even small apps can steal the behaviorsand tendencies of various users. All of this is to better understand the user,accurately push the advertisments, but also bring about data abuse, tracking,leackage, or even political use and misguidance.

    The reason for this phenomenon is that thegoverments is not clear about the privacy regulations and implementation. Forexample, on Android phones, some powerful application vendors require usershave to grant certain permissions such as contacts and photos, read and writeaccess. The cost of data theft and monitor is too low, which makes it difficultto enforce a standardized user authorization access system.

    However, in China, as the domestic systembecoming in line with foreign countries, and domestic manufacturers aregradually moving abroad, they may gradually become more standardized, and mayrequire more standardized use and acquisition of user information. For example,it is required that user information can only be obtained and retained in aminimal amount, cannot be shared without permission.

    3

    Q:超脑的零知识证明系统的优势是什么?是如何实现真正的匿名和保护隐私的?

    A: 超脑的零知识证明系统,主要是有四大优势:低成本的套餐机制(以太坊大概45元/笔),可轻松支持任意业务的开发套件,一键完成证明验证,支持存证、ERC20、ERC721等模版。

    用户基本只需要清晰定义业务逻辑,不需要了解任何零知识证明的技术细节,即可轻松使用。现在支持用户的个人数据,比如存证信息的证明(比如存证的珠宝、球鞋、医疗数据的各种特征),链上资产的发行和转移(可以用于实现丰富的现金流转移场景,比如拍卖、转账)。

    Q: What are the advantages of the Ultrain'szero-knowledge-proof system? How do you achieve true anonymity and privacyprotection?

    A: The Ultrain zero-knowledge-proof system hasfour main advantages: low-cost package around serveral thounds usd per year(Ethereum is about 6 usd per transaction), which can easily support anybusiness development kit, one-click proof verification, support for ERC20 ,ERC721 and other templates.

    Users basically only need to clearly definethe business logic, and can easily use it without knowing any technical detailof zero-knowledge-proof. It now supports the user's personal data, such asproof of product information (such as the jewels, shoes, medical records,etc.), the anonymous transfer of assets (can be used to achieve cash flowtransfer scenarios, such as Auction).

    4

    Q:超脑的zksnark有例子吗,proofsize能做到多小?

    A: 我们在github展示了两个场景,分别是珠宝和现金流。
    https://github.com/wanghs09/zkp9ff2b8d9/wiki
    可以到我们的相关网站看和提问。
    proofsize大概256字节。

    Q: Does the Ultrain zksnark have an example,how small can the proof size be?

    A: We showed two scenarios on github, namelyjewelry and cash flow.
    Https://github.com/wanghs09/zkp9ff2b8d9/wiki
    You can go to our related website to see andask questions.
    The proof size is about 256 bytes.

    若大家有更多关于零知识证明与隐私保护的问题,可添加客服微信号(ultra-in),将疑问提交,由项目团队进行解答,了解更多关于Ultrain的详细信息。

    posted in 资讯 read more
  • B
    brianliu

    替代文字

    Following is the biweekly report on the progress of the project from August 12th — August 25th, which contains two items: project development progress and community dynamic update. It is for the community members to check. Thank you for your attention.

    Technology Update from Ultrain (8/12–8/25)

    Ultrain’s Core Technology

    1. Test the UDP protocol application layer package development completion version using the test network scale;

    2. Assembling the evidence of evil punishment into a transaction and broadcasting it to the whole network to realize the punishment transaction;

    3. Improve the package purchase process and optimize the processing logic such as resource expiration and re-purchase;

    4. Increase the transfer mechanism of the package resource to facilitate the flow of chain resources;

    5. Research and test state storage expansion solutions to support system scalability.

    Ultrain’s Ecosystem

    1. The Binanace DEX trading competition opened the deposit/withdraw function and connected to the Ultrain mainnet

    2. The digital asset issuance platform completes access to the main net of ValueLedger (UIP06) and AssetLedger (UIP09), and completes the soft wallet signature and Private Key, Mnemonic support;

    3. Main net enterprise data migrate to adapt to the main net mapping work.

    Ultrain Developer Kit

    1. UltrainOne iterative development version 2.4, add contract call and bulk transfer wallet interface for third-party applications, enhance WebView function, solve H5 call native camera album and rollback and other issues;

    2. Development and release of the DAPP market in the developer portal, and the first batch of superstars on the line to win the outstanding DAPP.

    Ultrain’s Latest Community & Event Update

    Ultrain collides with ChainIDE to build a developer’s ecological prosperity!

    替代文字

    On August 10th, the “Superstar Project” jointly organized by Ultrain and Mars Finance, the ChainIDE project developed by Nanjing Pure White Matrix won the top prize. ChainIDE has a grand vision and goal plan. In the past three weeks, it has compiled nearly 100,000 smart contracts. Combined with Ultrain, it will bring better development experience to the developers around the world. Bringing a wave of developer traffic to Ultrain to thrive on the ecosystem.

    In addition, after perfecting the one-click deployment, ChainIDE will effectively spread this tool to the university blockchain education, and combine Ultrain to make a significant contribution to the blockchain education. In the future, ChainIDE will help more developers to achieve more high-quality blockchain application on the Ultrain to help the real economy. The two sides will accelerate the process of commercialization of the blockchain, bringing convenience to developers and bringing new dawn to the future of the blockchain.

    Encrypted Three Kingdoms game is about to land on Ultrain to create a killer DAPP

    On August 10th, the DApp Developer Contest held by Ultrain and Mars Finance, the DApp game project from New York, USA, encrypted the Three Kingdoms won the second place in 15 projects. It will also be expected In early September, it officially cooperated with Ultrain and landed on the Ultrain main net to sell in-game assets. The combination of the encryption of the Three Kingdoms project and the Ultrain will hopefully create a killer DApp, break the cognitive barriers of blockchain games for ordinary users, further develop the blockchain game, and further develop the blockchain.

    替代文字

    The Wandering Baby DApp test version has been released, the official version will be online soon.

    替代文字

    The third winner of the Superstar Program DApp Developer Contest was the “Wandering Baby” project. Its founder, Li Chen, is also the founder of “Where is the dog?” “Where is the dog?” APP is the platform for the quality of the pets, and the first city life consumption guide platform for pet owners. It provides pet owners with travel information such as the suburban hotels in the dining parks where dogs can enter and exit. At present, there are 3 million deep pet users, which is the largest pet community in China. Its next-line pet service store, “Meng Beast”, is China’s first one-stop pet life service center. It is located next to the East Fourth Ring Road in Beijing and covers an area of 5,000 square meters. It has also developed five chain stores. The national chain will be laid out in the year. Both will help the stray baby to drain.

    “Wandering Baby” is a love donation platform designed for stray animals with open transparency through blockchain. In “Wandering Baby”, not only the information of each dog has been on the Ultrain chain, but also traceable, support for real identity identification, each dog has an independent guardian, guardian identity and guardianship relationship are also on the chain , can be traced. In addition, each dog has a separate account, the donation is recorded in the token form, the guardian manages the private key, and is responsible for the daily expenses of his account. All the accounts and consumption records are linked up in real time and can be tracked in real time.

    Li Chen is very strange to the blockchain technology, but in the process of docking with the Ultrain team, she felt the strong support of the technology development provided by the Ultrain team. In just two weeks, this DApp beta has been fully online. This DApp beta has been completed. During the testing process, the platform has received a lot of donations from caring people. The official version of “Wandering Baby” will also be available in mid-September, so stay tuned. At that time, everyone is welcome to participate in the joint love, to help the homeless vagrant baby.

    Ultrain won the software copyright of the National Copyright Administration of the People’s Republic of China!

    替代文字

    On August 6th, the “Ultrain Basic Public Chain Software V1.0” independently developed by Ultrain Team successfully obtained the software copyright of the National Copyright Administration of the People’s Republic of China. Computer software copyright refers to the exclusive rights of software developers or other rights holders to software works in accordance with the provisions of the relevant copyright laws. Ultrain obtained this copyright, which truly marks the recognition and affirmation of Ultrain’s public chain technology by the national authorities, and is deeply protected by relevant laws and regulations.

    Ultrain‘s code is fully open source!

    On August 15th, Ultrain announced the official opening of 100% node source code, fully empowering blockchain developers. Technology open source is of great significance to the blockchain industry. Since the project was launched, Ultrain has become the highest performance and the only public service provider in the global blockchain 3.0 project. It is also the world’s first public chain 3.0 project on the main net. A large number of people at home and abroad expressed their high recognition of Ultrain technology and expressed their expectation for the open source of Ultrain code. As the world’s leading commercial chain, Ultrain has always insisted on the open and inclusive spirit of the blockchain, and has always been user-friendly, taking open source as one of its own. With this comprehensive contribution source code, we are committed to better serve developers, promote overall ecological prosperity, and promote the industry to flourish.

    See all code:

    Https://github.com/ultrain-os/ultrain-core-production

    If you have any valuable suggestions about the code, please feel free to interact with us on our official GitHub and your suggestions will help us to grow better.

    See the official GitHub link:

    Https://github.com/ultrain-os

    Emma gave a speech to the students of Yabuli Youth and spoke at the 5G Forum.

    替代文字

    This summer, Ultrain Co-founder Emma once again was invited to participate in Yabuli, and with all of you here, focus on new topics and seek new developments. On the evening of August 16, Emma was invited to be a youth lecturer of youth partners, giving lectures to hundreds of young students of Yabuli youth volunteers, telling how to become interesting, responsible and entrepreneurial young people, and answering them one by one. A series of questions on career choices received enthusiastic response from the students present.

    替代文字

    On August 17, at the opening ceremony of the 2019 Yabuli Forum Summer, Emma was invited to participate in the “Frontier Science and Technology Forum: 5G New World”, and the founding partner of Beijing Xingen Investment Management Co., Ltd. Zeng Qiang, Guest Yaxin Technology Tian Shunning, Chairman of the Board of Directors/Broadband Capital, and Lan Weilun, General Manager of Twitter Greater China, discussed the new 5G field.

    替代文字

    Emma discussed new opportunities for new technologies

    替代文字

    On August 21st, Ultrain Co-founder Emma was invited by Mars Finance to sponsor the topic “Values and Opportunities Brought by the New Technology and New Model for the Internet Industry”. It was organized at the POW’ER Conference of Mars Finance. People can participate in the discussion. Emma and the senior vice president of the temple library Lei Zhonghui, YOHO! founder & CEO Mars Liang Chao, music comic game co-founder and CTO Guan Hao and other friends have conducted in-depth exchanges.

    Ultrain CEO Guo at the Mars POW’ER Conference to discuss open finance

    On August 21st, Ultrain Co-founder & CEO Guo Rui was also invited to attend the POWer’s Conference on Mars Finance. “When we talk about open finance, what are we talking about?” In the big fire debate, with the host of Mars Finance, co-founder Shang Silin, guest BHEX founder Ju Jianhua, BiKi founder and CEO Li Xiandong, JEX founder and CEO Chen Xin, QuarkChain chief business officer Du Ting, DREP Foundation co-founder Xu Xiaolong conducted an in-depth discussion.

    替代文字

    Great results from overseas communities recently

    In order to expand the influence in overseas communities, Ultrain is deploying a global community ambassador program. Participants from Nigeria, Philippine, Turkey, India, Germany, Indonesia and other countries have signed up to compete. In addition, the Korean community ended the Ultrain App download event with an increase of nearly 1,000 overseas users for Ultrain. This week, Ultrain’s content reading in the Korean community reached 11,000+. In the future, more people will become Ultrain fans, follow us, support us!

    The above is the progress report of Ultrain from Aug 12th to Aug 25th, looking forward to more exciting contents after that!

    posted in News read more
  • B
    brianliu

    alt text
    以下为 8 月 12 日- 8 月 25 日项目进展双周报,包含#项目开发进展#、#社区动态更新#两项内容,供社区成员们查看,感谢大家对我们一直以来的热切关注!

    项目进展双周报(8/12-8/25)

    项目开发进展

    • Ultrain 内核

    1. 使用测试网规模测试UDP协议应用层封装开发完成版本;

    2. 将作恶惩罚证据组装为交易并广播至全网,实现处罚交易化;

    3. 完善套餐购买流程,优化资源到期、重新购买等处理逻辑;

    4. 增加套餐资源转让授权机制,方便链资源流转;

    5. 调研测试状态存储扩展方案,以支持系统可扩展性提升。

    • Ultrain 产品生态

    1. 币安DEX交易大赛充币/提币业务对接至Ultrain主链,并准备DEX工具开源工作;
    2. 数字资产发行平台完成对ValueLedger(UIP06)和AssetLedger(UIP09)接入主网,并完成软钱包签名及PrivateKey, Mnemonic支持;
    3. 主网企业数据迁移以适配主网映射工作。

    • Ultrain 开发者套件

    1. UltrainOne迭代开发2.4版,为第三方应用添加合约调用与批量转账的钱包接口,增强WebView功能,解决H5调用原生相机相册及回退等多个问题;

    2. 开发者门户中DAPP市场的开发及发布,上线首批若干个超星计划获奖优秀DAPP。

    社区动态更新

    • Ultrain与ChainIDE激情碰撞,共建开发者生态繁荣

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    8月10日,Ultrain超脑链和火星财经联合举办的“超星计划”中,南京纯白矩阵开发的ChainIDE项目拔得头筹。ChainIDE拥有宏大的愿景和目标规划,在3周时间里已经共计编译了接近10万份智能合约,它与Ultrain相结合,将会给全球的开发者带来更好的链上开发体验,同时会给Ultrain带来一波圈外的开发者流量,从而繁荣生态体系。

    此外,ChainIDE在完善一键部署后,会将这个工具有效地传播到大学区块链教育当中,结合Ultrain,为区块链的教育事业做出巨大贡献。未来,ChainIDE将会助力更多的开发者在超脑链上实现更多优质区块链落地应用,助力实体经济发展。双方将加速区块链商业化的进程,为开发者带来便捷,也为区块链的未来带来新的曙光。详情请见🔎Ultrain与ChainIDE激情碰撞,共建开发者生态繁荣

    • 加密三国志游戏即将登陆超脑链,打造杀手级DAPP

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    8月10日,Ultrain超脑链和火星财经联合举办的DApp开发者大赛上,来自美国纽约的DApp游戏项目加密三国志力压群雄,在15个项目中斩获第二名宝座,它也将预计将在9月初和Ultrain进行正式合作,登陆Ultrain主网,进行游戏内资产销售。加密三国志项目与超脑链的结合,将有望共同打造杀手级DApp,打破普通用户对于区块链游戏的认知障碍,让区块链游戏的发展更进一步,让区块链的发展更进一步。详情请见🔎加密三国志游戏即将登陆超脑链,打造杀手级DAPP

    • 流浪宝贝DApp测试版已发行,正式版即将上线

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    “超星计划”DApp开发者大赛的第三名获奖得主为「流浪宝贝」项目。其创始人李晨同样是「狗狗去哪儿」创始人。「狗狗去哪儿」APP是主打优质养宠生活方式的平台,也是国内首个服务于宠物主的城市生活消费指南平台,为宠物主提供全国带狗可以出入的餐饮公园近郊酒店等出行信息,目前已有300万深度养宠用户,是中国第一大宠物社区。其旗下线下一站式宠物服务实体店「萌兽派」则是中国首家一站式宠物生活服务中心,位于北京东四环旁,占地5000平,还已发展5家连锁店,未来三年将布局全国连锁。二者都将为流浪宝贝进行助力引流。

    「流浪宝贝」是一款借助区块链公开透明性,专为流浪动物打造的爱心捐助平台。在「流浪宝贝」里,不仅每一只狗狗的来历信息均已上Ultrain链,可追溯,支持真实身份鉴定,每只狗狗还有独立的监护人,监护人身份及监护关系也均已上链,可追溯。除此之外,每只狗狗还有独立的账户,捐赠以代币形式记录在链,监护人代为管理私钥,负责其账户的日常支出,所有入账及消费记录统统上链,可实时追踪。

    李晨本身对区块链技术非常陌生,但在跟超脑链团队对接的过程当中,她感受到了超脑链团队给予的技术开发上的大力支持。短短的两星期,此DApp测试版就已完全上线。此DApp测试版已经完成,在测试的过程当中,平台已经收到了大量的爱心人士捐助。「流浪宝贝」的正式版本也将预计于九月中旬面世,敬请大家期待。届时也欢迎大家参与共同献爱心,以己之力帮助无家可归的流浪宝贝们。详情请见🔎当区块链遇到宠物救助,让每个它都不再流浪

    • 超脑链荣获中华人民共和国国家版权局软件著作权!

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    8月6日,Ultrain超脑链团队自主研发的“超脑基础公链软件V1.0”成功获得中华人民共和国国家版权局软件著作权。计算机软件著作权是指软件的开发者或者其他权利人依据有关著作权法律的规定,对于软件作品所享有的各项专有权利。Ultrain获得此项著作权,真正标志着Ultrain公链技术荣获国家权威机构认可与肯定,并深受相关法律法规保护。

    • Ultrain超脑链代码全面开源!

    8月15日,Ultrain超脑链宣布正式开放100%节点源代码,全面赋能区块链开发者。技术开源对于区块链产业来说具有重大深刻的意义。自项目上线以来,Ultrain已成为全球区块链3.0项目中性能最高、同时唯一能对外提供商业服务的公链,也是全球首家上线主网的公链3.0项目。大量海内外人士对Ultrain技术表达了极高认可,并对Ultrain代码开源表示期待。作为全球领先的商业公链,Ultrain自始至终坚持区块链开放、包容精神,并一直以用户友好为先,把开源作为己任之一。此次全面贡献源代码,我们致力于更好地为开发者服务,促进整体生态繁荣,推动行业蓬勃发展。详情请见🔎Ultrain超脑链代码全面开源,开创崭新公链时代

    所有源代码请见👇
    https://github.com/ultrain-os/ultrain-core-production
    若您有任何关于源代码的宝贵建议,欢迎在我们的官方GitHub上与我们进行互动,您的建议定能帮助我们更好地发展。

    官方GitHub链接请见👇
    https://github.com/ultrain-os

    • Emma担任亚布力青春讲师为广大学生演讲,并于5G论坛发言

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    今年夏季,Ultrain超脑链联合创始人Emma再次代表Ultrain受邀走进亚布力,与在座各位重磅来宾聚焦新课题,共谋新发展。8月16日晚,Emma受邀成为青春合伙人青春讲师,为亚布力青年志愿者数百位大学生演讲,讲述如何成为有趣、负责任、富有创业精神的年轻人,并一一解答了他们在创业、职业选择上的一系列问题,得到了在场大学生的热烈反响。

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    8月17日,2019亚布力论坛夏季高峰会开幕式上,Emma受邀参加了“前沿科技论坛:5G新世界”论坛,与主持人北京鑫根投资管理有限公司创始合伙人曾强、嘉宾亚信科技董事长/宽带资本董事长田溯宁、Twitter大中华区总经理蓝伟纶等人共同探讨了5G新领域。详情请见🔎Emma担任亚布力青春讲师为广大学生演讲并在5G论坛发言

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    • Emma携消费文娱大咖,共同探讨新技术为产业带来的新机会

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    8月21日,Ultrain超脑链联合创始人Emma被火星财经特邀为“新技术新模式为互联网产业带来的价值和机会”议题发起人,于火星财经POW'ER大会中组织了一场充满干货、鲜有人能够参与的探讨。Emma与寺库高级副总裁雷中辉、YOHO!创始人&CEO Mars梁超、乐逗游戏联合创始人兼CTO关嵩等好友进行了深度交流。本期内容干货满满,欢迎点击详情阅读🔎Emma携消费文娱大咖探讨新技术为产业带来的新机会

    • 超脑链郭睿于火星POW'ER大会详谈开放式金融

    8月21日,Ultrain超脑链联合创始人&CEO郭睿也受邀出席了火星财经POW'ER大会,在《当我们在谈论开放式金融的时候,我们在谈论什么?》炉火大辩论中,与主持人火星财经联合发起人商思林、嘉宾BHEX创始人巨建华、BiKi创始人兼首席执行官李显东、JEX创始人兼首席执行官陈欣、QuarkChain首席商务官杜挺、DREP基金会联合创始人徐小龙进行了深度探讨。详情请见🔎直击火星POW'ER大会,超脑链郭睿详谈开放式金融

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    • 近期海外社区巨大成果

    为了扩大在海外社区的影响力,Ultrain正在部署全球社区大使计划,已有包括尼日利亚、菲律宾、土耳其、印度、德国、印尼等多个国家地区的参与者踊跃报名参与竞争;此外,韩国社区第一轮Ultrain App下载活动结束,为Ultrain增加了近1000的海外用户,本周Ultrain在韩国社区的内容阅读量也达到了11000+。未来将会有更多的人们成为Ultrain粉丝,关注我们,支持我们,敬请期待!

    以上便是 Ultrain 8 月 12 日至 8 月 25 日的项目进展,敬请期待此后的更多精彩内容!

    posted in 资讯 read more
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    brianliu

    北京时间8月26日晚9点,Ultrain超脑链首席架构师沈宇峰针对「代码开源」进行了一场中英文社区同步的AMA(Ask Me Anything)活动,一一解答此前收集精选的几大社区成员们关于代码开源的问题,以帮助大家更加清晰地了解Ultrain代码开源的意义和众多知识点。

    以下为本次AMA活动实录整理(中英文对照)

    供社区成员参考了解👇

    1

    Q:超脑侧链的架构具体是怎样的?

    A:主要的架构可以看这张图:

    The overall multi-chainarchitecture diagram is like this:

    alt text

    alt text

    具体的 DApp 是跑在特定的侧链上的,然后主链只是负责管理这些侧链;一个大概的流程是有企业需要用区块链来改造他的业务逻辑,那他通过购买质押一定数量的 UGAS来创造一条属于他的侧链;然后我们主链收到这个请求之后,会把一定的矿工机器调度过去组成这样的侧链;然后这个企业就可以独有的使用这条侧链上所有的计算/存储/带宽资源了;然后这个企业所质押的UGAS 会缓慢的释放给这条侧链上的出块的矿工,作为对他们提供计算资源的奖励。

    DApps are running on specific shard-chain, and the main-chain ismanaging all the Shard-chains; and the general lifecycle of the shard-chain islike: some enterprise wants to rework some of their business using blockchaintechnology; so he acquires and deposits a certain amount of UGAS on themain-chain and requests an exclusive shard-chain. Main-chain locks up thedeposit and then summons and assigns a certain number of miner machines to forma new shard-chain. The enterprise can exclusively use all thecomputation/storage/network resource of that shard-chain; And the depositedUGAS from the enterprise is slowed released to the miners of the shard-chain asthe reward for their contribution of hardware resource.

    当然我们也有共享链,小的DApp开发者可以按需购买这条链的部分的资源来满足他的需求;

    And also we have the non-exclusive, or shared shard-chain, wheresmall Dapp developers can buy portions of the overall resource accordingly totheir needs and also pays UGAS in proportion.

    然后在每条侧链上提供计算资源的矿工不是一成不变的;每个矿工都是定期的在不同的侧链上流转的,这样就大大降低了矿工联合在某条侧链上作恶的可能性,提高了链的安全性;

    One important feature of the design is that miners don’t stay onone particular shard-chain permanently, instead they are rotated to differentshard-chains now-and-then, so the chance that miners collude together to attacka particular shard-chain is extremely low if not practically impossible, so theover all security of the whole Ultrain network is very high.

    多链架构的详细设计可以看我们的黄皮书:

    https://ultrain.io/downloads/Ultrain 网络的多链架构.pdf

    The detailed design can be found at

    https://ultrain.io/downloads/Ultrain’s Multi-chain architecture - revised.pdf

    2

    Q:共识机制和主链一样吗?和主链的交互怎么进行?

    A:主链和侧链是用同样的共识机制叫做 R-POS. 这个是我们自己研发的共识机制,首先他是基于 PoS 的,所有用UGAS做了staking 的账号都能成为出块委员会成员,然后每一次出块我们都用一个基于 VRF 的随机数算法选出这轮出块的候选人,然后整个委员会成员对这个些候选人进行投票,最终确定这轮的出块者;选中的出块者能拿到这轮的出块奖励;现在我们在单条链的情况下能做到大概~1000 的 TPS 和~10秒左右的确认时间;

    The consensus algorithms are the same on both main/shard-chains,which is called R-POS. It is an original innovative consensus algorithm createdand implemented by the Ultrain team. First of all, it is a Proof-of-Stakealgorithm, any one can become the member of block producing committee bystaking a certain amount of UGAS; and during each round of block production,VRF-based random number is used to select a few block producing candidates fromthe committee, then the rest of the committee vote on the candidates to reachconsensus on one block producer for that round. The voted block producerdecides the block to be produced and earns the block reward. Currently forsinge-chain, we can reach about ~1000 TPS and about ~10 seconds confirmationtime.

    侧链和主链的交互主要是通过轻客户端的技术来实现的;轻客户端的意思就是比方说我有主链和侧链 A, 那我主链上保存了侧链 A 上所有块的块头信息,因为块头信息相比整个块信息数据量要小很多,所以说主链是A链的“轻”客户端;(如果我们把链A的所有块信息存在主链上,那主链就变成了链A 的一个全节点,或者叫做“重”客户端) 同样的链 A 也是主链的“轻”客户端;

    The interaction between main/shard-chains are mainly based on thetechniques called “light-weight client” or just light client. Let me try toexplain the idea of light client. Suppose we have main chain and one shardchain called chain A; All the blockheader information for chain A are stored on main chain, because the size ofblock header is much smaller than the size of whole block, so we call that mainchain is the “light-weight” client of chain A (suppose we save all the blockhistory of chain A on main chain, then main chain is a full-node orheave-weight client of chain A). And also vice versa we also make chain A to bea “light client” of the main chain.

    那么有了轻客户端,就可以安全的验证很多跨链的事情,比方说我有个账号 xyz 想从主链往侧链上转 100 个UGAS, 那他首先需要在主链上把这100 个UGAS转到特定的银行账号里面锁定起来,然后我们才能在侧链上把这 100UGAS 发出来;那侧链怎么知道XYZ 在主链上把这 100个UGAS 已经锁定到特定的银行账号了能?这个时候就要借助轻客户端功能了,因为侧链 A 是主链的轻客户端,他保存有主链的所有的块头信息,他能通过这些块头信息来验证(具体是通过merkle proof方式)XYZ 确实在主链上存了100UGAS到特定的银行账号了,这个都是靠密码学来保证的,那在侧链上就可以把这 100UGAS发出来了;所以所有的主侧链之间的交互都是基于这个轻客户端的机制来实现的;

    With the weapon of light client, we can now safely do manycross-chain verifications; for example, say that I have an account XYZ thatwants to transfer 100 UGAS from main chain to chain A. First of all XYZ needsto deposit the 100UGAS onto a certain main chain account/contract and locks itup, then we can release the 100 UGAS on chain A. now the question is how canchain A safely know that the 100 UGAS has been locked up on main chain? here iswhere light client comes to help; because chain A is the light client of mainchain, he keeps all the block header information of main chain, so by usingthese block headers (plus merkle proof techniques) chain A cancryptographically verify that XYZ has indeed deposited 100 UGAS on main chainand then the according 100 UGAS can safely be released on chain A. Basicallyall the interaction between main/shard chains are relying on this light-clientmechanism.

    3

    Q:代码开源的话,别人直接fork,重新成立一条新链,0成本,如果他们再降低商户的上链运营成本,会让超脑原链造成什么样的影响?

    A:首先如果这个事情发生了,那说明他们认可超脑的技术,市面上有那么多开源的公链,他们选择了fork我们的话,我觉得对我们技术团队来说是非常正面的肯定:)而且从技术团队的角度来看,我们做的都是链的基础技术,比方说共识,p2p, 多链架构这些,这些都是平台性质的技术,并不局限于超脑链,而且我们的license 是 MIT License,是非常宽松的协议,基本上你可以拿这个开源代码做任何你想要的事;我们获益于开源社区,也很愿意回馈社区;Happy hacking!

    First of all if this indeed happens, it means they appreciate theexcellency of Ultrain’s technology. There are so many choices of open-sourcedpublic chain projects and by choosing forking Ultrain’s code, it is a verypositive acknowledgement of Ultrain team’ technical capability. And from our perspective, the various technical components of thewhole Ultrain project like consensus, multi-chain architecture design, p2p andetc are actually project-agonistic and not necessarily be confined to the“Ultrain chain”; and our license is MIT License, which has very littlerestriction and essentially you can take the code and do anything you want. Webenefit a lot from the open-source community so we are more than willing tocontribute to the open-source community. Happy hacking!

    其次类似的分叉链的做法在很多公链上都发生过,比方说 btc 和 ltc/doge/bch 这些,eth 和 etc ; eos 的话也有eosforce 这些;但是似乎很少有分叉链做的比原始链更好的例子。

    Forked chains are actually very common, like BTC vs LTC/DOGE/BCH;Ethereum vs ETC; and also like EOS vs EOSForce; but honestly speaking we rarelysee that the forked chain can do significantly better than the original chain.

    具体到你说的这个例子,我觉得现在公链之间的竞争是非常多维度的,从底层技术,到工程实现,技术社区,市场推广,企业合作,团队实力等等,我觉得不存在说单一因素比方说降低了链运营成本就能够在竞争中胜出;简单的说,公链市场还没有说充分竞争到了就只剩下商户成本这一单一决胜因素的时候

    As for the specific question, I think now the competition betweendifferent public chain projects are along many different dimensions, liketechnical capability, engineering realization, community building, marketing,business development, core team building etc. I don’t think one single factorlike lowering the on-chain operation cost can win the competitionsingle-handedly.

    4

    Q:代码开源后,如果有bug的话,会不会被黑客利用?

    A:首先是程序都会有bug, bitcoin在最开始的时候也出过整数溢出漏洞被凭空造出了很多的币,后来是中本聪做了硬分叉来修复的;以太坊也出现过 The Dao 事件后来分叉出了 ETC;cosmos 就在不久前也出现了validator解绑定的bug; 我们在开源前也找了业内实力比较强的安全审计公司(慢雾,知道创宇)等做了安全审计;在代码开源后,我们也时刻监控着网络的运行状况,如果有bug出现我们也会及时的响应。

    我们的开源代码在这里,欢迎大家来查找bug, 多提意见。

    https://github.com/ultrain-os/ultrain-core-production

    First of all, no software is without bugs. Like in the earlyhistory of Bitcoin there is integer overflow bug that creates billions ofbitcoins from vain and it was fixed by an emergency hard-fork; For Ethereumthere is the famous The Dao exploit that results in the forked ETC fromEtehreum; And also remember just recently for Cosmos there is the validatorunstaking bug; For Ultrain, before open-source we have our code audited byvarious blockchain security companies like SlowMist and KnownSec; And we keepconstant monitoring of the network status and do our best to respond to any emergencybug. Our code repo is here and welcome for bug-hunting.

    https://github.com/ultrain-os/ultrain-core-production

    5

    Q:技术开源对于超脑链的意义是什么?

    A:最大的意思是证明我们不是个中心化的系统,我们确实是完全去中心化的一个公链系统;代码不会说谎;所有人都可以自由下载编译代码来运行我们的节点,自由的加入到我们超脑网络来提供计算资源从而获取奖励。

    The most significant meaning is that it proves that the Ultrainnetwork is truly a fully decentralized public blockchain network. The code doesnot lie. Everyone can freely download and compile the code to build and run aUltrain node, and freely join the Ultrain network to contribute hardwareresource and earn reward.

    6

    Q:如何落地应用?目前应用情况如何?

    A:除了公链技术开发之外,我们最大的资源投入就是推动企业应用落地了;目前我们已经有一些优秀的落地案例比方说和国内第一潮牌电商 YOHO!有货的潮牌鞋的验真和溯源上链,目前为止已经有数十万的鞋子的信息已经落在我们的链上了;另外我们最近举办的超星开发者大赛也孵化出了一批优秀的DAPP应用,其中比方说获得第二名的“加密三国”也会在9月份登陆我们主网,各位游戏玩家都可以关注下;

    This year we have put tremendous effort and resource intolaunching enterprise level application on our blockchain network; For example,we have collaborated with YOHO!, which is the biggest collectible sneakerssellers in China, for putting their sneakers’ authentication information ontoour blockchain for the buyers to trace; Several hundreds of thousands sneakersinformation have been recorded on chain up until now; And our recent super-novahackathon has also incubated many creative Dapps, e.g. the second place winnerCryptoSanguo will launch on our mainnet in Sep. Stay tuned if you areinterested in games and crypto assets.

    之前由于我们的UGAS还是以太坊上的erc20代币,只有交易所买卖的单一功能,并不能在主网上流通,极大的限制了应用在我们主网上的使用场景;现在我们已经开启了erc20代币到主网币的映射,预计9.15 号前完成映射,之后ugas就全在我们主网上流通和使用了,到时候之前在主网上因为ugas结算问题被压抑的应用场景都会爆发出来,真正的在我们主网上大规模落地应用起来。

    Historically our token UGAS is an ERC20 token issued on Ethereumso it only has limited functionality like trading in exchange and can’t beactually used on our mainnet, which suppressed a lot of practical applicationscenarios to happen on our mainnet; Now that we have officially started ourERC20 -> Mainnet UGAS migration process and it is estimated all the tokenswill be mapped to Ultrain mainnet before 9.15; and after that we expect a lotof applications with practical use cases will emerge and run freely on ourmainnet with the support of native UGAS.

    7

    Q:代码开源后,矿工如何挖矿?如何保证矿工的收益和资产安全性?

    A:首先我们最终希望看到的场景是:矿工首先获得一定的ugas, 然后通过钱包操作在主网上抵押获得矿工资格;然后他下载ultrain的代码,编译出一个ultrain的节点程序,然后在他的家庭PC 电脑上运行这个节点程序就能加入我们的超脑网络提供算力并获得出块奖励了;

    Ultimately what I want to see happening islike: interested miner first acquires a certain amount of UGAS; he can use walletto stake the UGAS to become a qualified miner of the Ultrain network; Then hedownloads the source code and build a Ultrain node program. Then on his home PChe can run this node program to join the Ultrain network to contribute hishardware resource to the network and earn rewards.

    代码开源是达到上述终极目标的一个必要条件,但还不是充分条件;主要的问题是普通矿工用户是不懂代码的,甚至是不懂机器和节点程序的日常维护的;我们现在看到的现状还是大部分的矿工都希望通云矿机的形式来来参与进来,这样对他们来说省心省力,不用担心机器维护不当和节点程序运行异常所带来的收益损失,以及潜在的黑客入侵带来的资产安全问题;

    Open sourcing is a necessary but notsufficient condition for reaching the abovementioned goal; the key problem weare facing is that most interested and potential miners have no technicalbackground, they don’t know the code, and don’t know hardware maintenance. Andmost of the potential miners we have talked to are more interested in choosingthe cloud-mining option, in which all the machines are hosted on (different)clouds and maintained by professionals, so they don’t have to worry about theeconomical loss caused by like machine misbehavior or node program exceptions,and also don’t have to worry about asset stealth because their PC gets hacked.

    所以总的来说,现状是如果你不希望担心太多,那云挖矿比较适合你;如果你有技术背景又热衷于DIY,那用实体矿机挖矿也可以;

    In summary, if you want worry-free thencloud-mining suits you better; and if you have strong technical background anddon’t mind getting your hands dirty, then home PC mining will be fun for you.

    最后从我们技术理想来看,我们会在节点程序的易用性和稳定性上持续投入,希望最终小白用户也能够轻松的在家庭电脑上“一键挖矿”;只有这样,才能够真正的实现我们构建完全去中心化网络的初心。

    But to realize the ideal, we will keepimproving the whole experience of setup and running the mining node, make iteasy to use and more robust and ultimately everyone can just one click to mineon their home computer; and only then we can say we have fully realized theideal of making Ultrain a permission-less and decentralized blockchain network.

    8

    Q:如何对接开发者?提交bug的github地址是什么?

    A:可以先访问我们的开发者网站https://developer.ultrain.io来熟悉我们的链环境和开发工具,也可以在我们的社群里面直接找我们的工作人员;

    可以到 https://github.com/ultrain-os/ultrain-core-production 来提 issue,后续我们也会开启bug bounty program。

    You can visit our developerportal at https://developer.ultrain.io to get yourself familiar with our chainenvironment and the related dev tools. Or you can directlyu reach to our staffthrough various community IMs.

    For filing bugs, you cancrate issues at

    https://github.com/ultrain-os/ultrain-core-production

    and also we will launch bugbounty program soon.

    若大家仍有其它代码开源相关问题,可添加客服微信号(ultra-in),将疑问提交,等待项目团队进行解答,了解更多Ultrain相关信息。

    posted in 资讯 read more
  • B
    brianliu

    你居住的小区里,有多少条流浪猫狗?

    据不完全统计,2014年,全国宠物数量已高达1亿,并在以每年30%的速度持续增长。

    然而,在各色宠物愈加受人追捧的今天,全世界近5年流浪狗却达到了2亿,其中中国流浪狗则高达4000万。

    流浪动物的生存现状到底是怎样的呢?

    它们的生存之艰难,面临的重重绝境,往往是我们所无法想象的。

    因此,如何更好地照顾流浪动物,让人类与狗狗和谐相处,成为了亟待我们思考和解决的问题。

    alt text

    「狗狗去哪儿」的创始人李晨一直在致力于解决动物相关问题。「狗狗去哪儿」APP于2014年开始运营,是主打优质养宠生活方式的平台,也是国内首个服务于宠物主的城市生活消费指南平台,为宠物主提供全国带狗可以出入的餐饮公园近郊酒店等出行信息。「狗狗去哪儿」目前已有300万深度养宠用户,是中国第一大宠物社区。

    其旗下线下一站式宠物服务实体店「萌兽派」则是中国首家一站式宠物生活服务中心,位于北京东四环旁,占地5000平,是集宠物酒店式寄养,洗美,商超,室内泳池,萌宠影院,咖啡厅,摄影棚于一体的新型宠物服务中心,受到全球媒体的高度关注,英国BBC,日本NHK等各国主流媒体都对其进行过深度报道。目前除了萌兽派总店,在北京已发展5家连锁店,未来三年将布局全国连锁,发展为国内最具影响力的线下服务品牌之一。

    李晨介绍道,中国有大量的流浪动物,流浪动物救助一直是一个很大的痛点,大家一直在寻求一个更好的办法去解决这个问题。而狗狗去哪儿和萌兽派在中国有非常扎实的宠物社区基础,并有着现成的优质基础设施。狗狗去哪儿平台已经上线了完整的有宠人士/爱宠人士的社区+电商+社交(如约遛狗)+宠物信息档案功能,萌兽派则有着很好的线下生活中心,解决了线下宠物包括生活、寄养等等问题。

    她表示,自己从事宠物行业创业近十年,但是此前未曾听说过区块链技术,而在超脑链联合创始人Emma给她进行了大量的科普后,她认为通过区块链技术可以很好地整合目前自身平台上的资源,服务于救助流浪动物这样一件非常有意义的事情,愿意投入大量的精力、贡献出场地,结合Ultrain超脑链,去做一项有意义的救助流浪动物的好事,于是便与超脑链合作开发了一款「流浪宝贝」DApp。

    「流浪宝贝」是一款借助区块链公开透明性,专为流浪动物打造的爱心捐助平台。作为一款优质的DApp,它也当之无愧地获得了Ultrain超脑链“超星计划”DApp开发者大赛的季军宝座。

    在「流浪宝贝」里,不仅每一只狗狗的来历信息均已上Ultrain链,可追溯,支持真实身份鉴定,每只狗狗还有独立的监护人,监护人身份及监护关系也均已上链,可追溯。

    除此之外,每只狗狗还有独立的账户,捐赠以代币形式记录在链,监护人代为管理私钥,负责其账户的日常支出,所有入账及消费记录统统上链,可实时追踪。

    alt text

    提到平台未来的愿景和后期打算,创始人李晨这样说道:希望未来通过「流浪宝贝」平台审核的流浪宝贝们,都可以在平台上得到更多捐款,从而过上更有质量的生活。同时也希望在救助流浪动物的同时,通过直播和线上互动,满足当代都市人群云养宠的情感需求。

    当得到救助的流浪动物越来越多,平台也将通过募捐建立线下的流浪动物之家,让大家可以在现实中与动物们进行接触,以志愿者的身份,切实参与到流浪动物的救助中。

    alt text

    以上为流浪宝贝平台测试版目前上线的动物

    正式版上线后将有更多动物登录平台

    李晨本身对区块链技术非常陌生,但在跟超脑链团队对接的过程当中,她感受到了超脑链团队给予的技术开发上的大力支持。短短的两星期,此DApp测试版就已完全上线。此DApp测试版已经完成,在测试的过程当中,平台已经收到了大量的爱心人士捐助。

    「流浪宝贝」的正式版本也将预计于九月中旬面世,敬请大家期待。届时也欢迎大家参与共同献爱心,以己之力帮助无家可归的流浪宝贝们。

    在超脑链“超星计划”DApp开发者大赛的决赛现场,李晨还留下了一句让在座所有人印象深刻的话语:“似乎所有的DApp在提到自己的优势时,都希望通过区块链实现怎样的数据增长,而我们所希望看到的,却是数据的降低,希望通过区块链技术,减少流浪动物的数量,给更多的流浪动物一个温暖的家,让整个社会更加充满爱心,充满正能量。”她同时也表示非常期待让区块链技术在整个宠物云收养行业里发扬光大,为社会贡献一份温暖的力量。
    捐赠完成后可进行分享

    我们相信,一个真正优质的DApp,一定能够为这个社会带来真正有价值的赋能,一如「流浪宝贝」为所有流浪动物所作出的贡献一样。Ultrain也将持续助力这样优秀的落地应用,最大化释放区块链技术的能量,让世界因此而更加美好。

    posted in 资讯 read more