课程介绍
投资社交
搭建用户价值投资平台，**社交功能活跃用户在区块链上 的投资、交易，分享和交流投资项目，如创建投资规则与分成协议，实现作品众筹等。
综合概述
千锋基于区块链底层技术，提供智能合约定制开发服务，并 可实现对应区块 链应用的落地。根据您不同的业务需求，编写贴合所需应用场景的智能合约，并能**智能合约构建出执行一定商业逻辑的区块链应 用。助您快速部署智能合约，更加便捷地开发基于区块链的应用。
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千锋互联区块链数字币系统(数字货币交易系统)是由极乐软件自主研发、基于区块链技术、专门面向数字货币交易场所的综合性平台系统。
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系统定位于数字货币 的发行、管理、交易等一系列流程，在完整支持比特币交易体系的基础上，进一步完善数字货币交易机制，包含区块链查询与管理功能，并从增强安全 防护级别、杠杆金融交易体系、平台推广运营机制等方面，不断优化核心功能，提高产品的综合功能优势。
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系统交易形式，支持 币币交易，法币交易，合约交易，场外自由交易。
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平台稳定高效的系统 架构，多重加密方式，匠心打造服务一体化的交易平台系统。
教学师资
杰夫-加里克：比特币将提供新的功能和特性
以下为翻译内容：
Jeff Garzik could be considered one of the guardians of bitcoin. When we caught up with him, he had just finished working with others to stop a network-wide event – a DDoS attack that exploited some stray code in the reference bitcoin client (Bitcoind) to target certain parts of the cryptocurrency’s distributed infrastructure.
杰夫-加里克被视为比特币的守护者之一。我们采访他的时候，他刚刚和别人合力阻止了一场网络级事件——利用比特币客户端（Bitcoind）的某些漏洞代码，针对这种加密货币的分布式基础设施的特定部分发动的一场DDos攻击。
He became one of the core developers of the Bitcoin protocol after he began working on the project during its early days. He was involved in many of the early forum discussions with the mysterious Satoshi, and even exchanged a private email or two with him.
比特币诞生之初，杰夫-加里克开始为这个项目工作后，就成了比特币协议的核心开发人员。他和神秘的中本聪参加了许多早期的论坛讨论，甚至和中本聪交换了一两个私人Email地址。
CoinDesk caught up with him to talk about Satoshi, the open source development community, and where the protocol is headed. So, does Garzik see the need for any new features in Bitcoin?
CoinDesk**近对他进行了一次采访，谈到了中本聪、开源程序开发社区和比特币协议未来的方向。并问到，加里克看出比特币需要增加哪些新特征了吗？
“Recurring payments,” he says emphatically. Bitcoin is great if I want to send you some bitcoins once. But if I want to pay regularly for a subscription to, say, an online service, or for regularly updated content, it’s flawed. “Bitcoin is a push model where you push payments to someone else, but it isn’t in the protocol that you pay someone on a regular basis. That needs to be filled in.”
“重复付款。”他强调说。如果我希望给你发送一次比特币，系统是能出色完成任务。可是，假设我希望为了订阅（比方说，一种网络服务或是周期性更 新的内容）而周期性付款，它就有缺陷了。“比特币采用的是一种推动模式，在这种模式中，你将付款主动推给某人。但是，比特币协议中不包括你周期性付款给某 人的部分。这是协议需要补充的内容。”
Another must-have for Garzik is what he calls “transaction lifetime determinism” – the retrieval of bitcoin payments from limbo. Transactions on the bitcoin network have to be mined in a block, and the network calls for those transactions to be confirmed. The general recommendation is six confirmations (one per block), but in practice, the number of transactions required by a party is variable.
另一件加里克必须去做的事，就是他所说的“交易生命周期判断论”——从未定状态中检索比特币付款。比特币网络的交易必须从某个块中挖掘出来，网络要求这些交易被验证。通常推荐的是6次验证（每个块一次），但事实上，当事人请求的交易次数是变化的。
"I don’t think it’s likely that the second generation will produce any useful, viable long-term cryptocurrency, but I do think that all this experimentation will absolutely inform the Bitcoin ecosystem." said Garzik.
“我认为第二代比特币协议不太可能制造出任何有用的、长期可行的加密货币，但我确实认为所有这类实验绝对要告知整个比特币生态系统。”加里克说。
If a transaction isn’t confirmed, it becomes stuck in the network, and you need an expert to help you recover those funds. “A user always needs to know what is going on with their money. If it isn’t confirming after a set period of time, it should just kick the transaction out of the system rather than just sitting around for weeks and months.”
如果一笔交易未**验证，它会阻塞在网络中，你需要一名专家来帮你恢复这些资金。“用户总是想知道他们的钱发生了什么状况。如果某笔交易经过一段时间后仍然未**验证，它应该被立即逐出系统，而不是被闲置在网络中，一搁就是几周、几月。
"Bitcoin activists and evangelists like me have a bunch of answers. It’s borderless, it’s irreversible, and there’s low risk of fraud. Nonetheless, it’s difficult to get on the radar of your average person." said Garzik.
“像我这样的比特币活动家和推广者有很多答案。比特币是无国界的，是不可逆的，欺诈风险较低。此外，比特币还让普通人难以被跟踪。”加里克说。
Features like these should go into the core protocol, but there are plenty of other features that Garzik wants to see layered on top of the network, without affecting the core protocol.
这些特征应该加入核心协议，但加里克希望看到很多构建在这个网络上而不影响核心协议的其他特征。
Coloured coins is one. Garzik wrote one of the first implementations of this, called Smartcoin. This concept enables attributes to be assigned to a coin, so that it can become a token for ownership. They could be used for everything from exchanging ownership of physical assets, to marking stocks, bonds, and options.
有色比特币就是其中的一个。加里克已经编写了这种新特性的首个实现代码，并称之为Smartcoin。这一概念能够给一枚比特币加入标识特征，这样它就能成为一种所有权的象征。有色比特币能够在很多场合派上用场，从交易实体资产所有权到标识股票、债券和期权交易。
“There are zero modifications needed to support coloured coins today,” he says. “Bitcoin wouldn’t need to be upgraded.”
“现在，让系统支持有色比特币不需要对协议作任何修改。”加里克说，“比特币（客户端）不需要更新。”
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