第一个区块链小程序诞生：帮你把协议写上区块链 别人无法篡改文| leon
来源| 橙皮书（ID：taixu_huanjing）
也许是特殊的发展时期，现在的区块链项目大都飘在空中，声称要解决的问题听起来都似懂非懂。所以，每次看到一个能解决具体问题的项目，不管这个问题多小，我都会由衷的开心。不久前把一封信保存到以太坊上，让它无法被删除，就是一例。
昨晚我都准备睡觉了，收到朋友发来的一个小程序，“小协议”，嗯，好名字。朋友还附了一句话，“这个区块链小程序很赞啊”。
我试了下小协议，越用越兴奋，睡意全无，思绪从这个小程序飘散开去，合同到底是什么？什么合同是有法律效应的？为什么法律这么规定？谁制定的法律？
我们把思绪拉回来……小协议解决的什么问题呢？在微信上怎么签一份有法律效应的协议。
小协议给出的方案非常轻巧：输入协议的标题和内容，选择是否加密存储协议内容，支付3块多的服务费，这份协议就生成了，然后微信发送给乙方，乙方同意之后，这份协议就会被写入以太坊网络，无法篡改，坚如磐石。
按小协议自己声称的：只需使用3分钟，你就能创建一份不可篡改的协议，微信唯一ID和区块链技术，保证内容真实可信，双方身份可靠。资深律师合作，随时提供电子证据保全。
保存在区块链上，协议肯定是没法改动了，但是怎么判断协议双方身份的真实性呢？小协议借了一把微信的力，在把协议内容记上以太坊的时候，同时附加了一个根据双方微信ID和会话秘钥生成的签名。
具体解释是这样，小协议会读取甲方和乙方的微信ID，这个是固定的身份标识，背后通常绑定了很多个人核心信息，安全性高，也很好验证。
另外，会话秘钥是指甲方创建协议和乙方确认协议时，根据当时的时间戳，在微信系统内生成的一次记录值，这秘钥是可变的，只和本次会话挂钩。小协议把这四个数值总和起来，用md5加密，生成的签名一并写入以太坊。
验证的方法很简单，根据法律规定，可以在必要时刻找微信拿到这四个数值，重新加密算一次，如果和区块链上的内容一致，这份协议就是真的。
解释起来很复杂，但是小协议在前端的使用体验很流畅简明，你不需要自己购买以太坊去支付，直接微信支付人民币就好，小协议会自己在后台用以太坊帮你写入数据。全部过程都在微信里完成，场景也很符合，毕竟，签合同不就是一个沟通的过程嘛。
一份有法律效应的协议，除了要自身硬，不可篡改且能验明身份，还需要得到现有法律的支持，不然出了纠纷，没法找法院解决问题，这个协议的意义就不大了。
国内对电子协议是有专门立法的，但是在具体执行上，还有一些领域不太认，尤其是涉及到大额交易时。
不过，法律一直是走在变化后面的，新技术总是得走在法律前面，等到大家都开始这么做了之后，立法才会跟上。
小协议现阶段可能更适合不那么正式的场合，比如朋友或者恋人之间的协议。比如我昨晚就签了这么一份协议。
小协议有了一个不错的开端，但是接下来要怎么走，还有很多问题。尝鲜是很容易的，用户会为了什么而回来呢？
最后，对我个人触动最大的一点是，之前我一直认为，区块链会大幅降低价值传递的成本，但是生活中哪来那么多价值传递和交易呢？小协议点醒了我，区块链大幅降低的，不只是价值传递的成本，更是达成协议的成本。而达成协议在生活中可是无处不在的。
HRTechChina：
达成协议的场合，大家想到了吗？未来签订劳务合同很有可能也会应用区块链技术。人力资源行业与区块链的联系真是越来越紧密了。
什么是区块链，HRTechChina网站上有很多区块链的普及文章和内容介绍，您可以点击这里访问"HR区块链" 详细了解。
每一项新技术诞生，我们必须看看我们可以用其解决哪些实际问题？所以我们特别发起了这次5月25日人力资源区块链的论坛，邀请了区块链中的超级大咖与行业应用的实践者们，一起给大家分享交流区块链在人力资源中的场景和应用，以及未来的机会和挑战。
How Blockchain will Impact HR and The World of Work
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详情请点击这里
2018 HRTech China Annual Conference Successfully Ended on April 20th
HRTech China Annual Conference was successfully held in Shanghai Four Seasons Hotel last Friday, hosted by HRTech China and collaborated with SAP and SAP SuccessFactors as our strategic partner, and other great partners like Kingdee, FESCO, JD Enterprise Procurement Platform, WAIFUXIN(SFSCTech), GaiaWorks, KNX Kennaikesa, RenYun HRSSC, eQianBao(Tsign), ZESTLearning Zhuanwei, Yi Road Software, JingTeng Tech, FLY HOVER, Fadada, Pailixiang, LiangGongGuan, Umianbao, NACSHR as our sponsors.
On HRTech China Annual Conference, we have welcomed over 1,400 Human Resource professionals and executives coming from nearly 30 main cities of the Greater China Region such as Beijing, Shanghai, Shenzhen, Guangzhou, Hangzhou, Jiangsu, Hubei, Hunan, Chongqing, HongKong, Taiwan etc. And most of the audience is from 500 fortune company, internet and technology giants (Alibaba, Jingdong, Tencent, Baidu, Meituan, Didi, Huawei etc.) and nearly 50% are HR manager, Director, VP, CHRO or CEO.
HRTechChina invited about 30 HR executives and experts to share the latest research results and insights from human resources technology, demonstrate the most cutting-edge technology products and solutions, and discuss how technology can deeply change the human resource industry and how can we better leverage technology. We were honored to connect our great speakers, who are all the leading figures in Human resource industry in China; our attendees, who are already or come to be the future human resource experts; with the HRTech Vendors and experts, who are continuously using technology to provide better products and solutions; and they together to become the strong force in HRTech in China and push the industry to the next level!
During the conference, HRTech China announced the winners of 2018 HRTech Geek Awards and distributed the trophies to the outstanding HR executives and Vendors and companies. The mission of HRTech Geek Awards is to encourage the application of HR technology in better serving people and company; or the HRTech Providers who are continuously improving the technical level to create better solution or products. We have received 79 applications and the final winners are SAP SuccessFactors; Kingdee; FESCO; PingAn Group; WAIFUXIN(SFSCTech); FLY HOVER; RenYun HRSSC for their ultimate pursuit and exploration in technology and constant attempt in providing great products and service. Congratulation to them all!
The conference smoothly concluded at 5:00 PM. 2018 HRTech China Annual Conference was highly praised by our guests and widely acclaimed by the audience, and has become one of the most significant events in human resource industry in China. As we can see, human resource technology develops very fast, while the innovation and sustainable development will be the following issue of this industry. Just as Mr. Wu Ying, President of e-China Alliance and Chairman of China Capital Group said in the opening speech:“President Xi mentioned that technology、talent、economic development is bounded up together. The development of human resource technology has fit the theme.” HRTech China will always remain our intention—People first, Technology second and continue to disseminate the idea of technology empower and unleash people.
At last, We would like to express our heartfelt gratitude to all speakers for their active involvement and sharing, all sponsors for their generous sponsorship, all partners for their continuous support and all attendees for their enthusiastic participation, all volunteers for their efforts. HRTech China conference cannot succeed without any of you. We will continue serving all the members through high-quality events. Please stay tuned for the upcoming events! Look forward to meeting you soon at HRTech China Annual Conference& Exposition in Shanghai this November!
Click here to read the report of 420 HRTech Annual Conference in Chinese. http://www.hrtechchina.com/21437.html
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