Huobi Group created the industry's first small animation series "Blockchain 100 Questions", which was jointly produced by Sina Technology.
Transform abstract blockchain concepts into 100 episodes of easy-to-understand 1-minute animations, each episode learns a knowledge point~
The original video link is as follows: http://tech.sina.com.cn/zt_d/blockchain_100/
4. Upstream of the blockchain industry chain - mining
23. What is mining?
Mining is the process of confirming transactions that occur in the Bitcoin system over a period of time and recording them on the blockchain to form new blocks. People who mine are called miners. Simply put, mining is the process of bookkeeping, miners are bookkeepers, and blockchain is the ledger. Bookkeeping is decentralized, that is, every miner has the right to bookkeeping. After obtaining the right to bookkeeping, he will receive a new bitcoin reward generated by the system. Mining is the process of producing bitcoins.
24. How to mine Bitcoin?
Every 10 minutes, the miners of the whole network jointly calculate a mathematical problem. Whoever calculates the answer first is equivalent to digging the block, and the miner will receive the newly generated bitcoin reward of the system. When Bitcoin was first born, it was possible to mine through the computer CPU. With the increase in the number of miners, the CPU can no longer mine Bitcoin. Everyone started mining with a mining machine, and at the same time they also had a bitcoin address and mining software. Now there are too many miners and too much computing power, it is difficult for individuals to buy mining machines to mine. You can join the mining pool, mine together, and then divide the bitcoin reward according to the computing power.
25. How do miners mine?
The main job of a miner is transaction confirmation and data packaging. To become a miner, you need to purchase a special computing device, download the mining software, and start mining.
26. What is a mining machine?
Professional equipment that competes for bookkeeping rights by running a large number of calculations to obtain new bitcoin rewards. Generally composed of mining chips, heat sinks and fans. Only a single calculation program is executed, which consumes a lot of power and competes with the miners in terms of computing power. In fact, it is a dedicated computer.
27. Evolutionary history of Bitcoin mining machines
Four stages: CPU mining, GPU mining, mining machine mining, mining pool mining.
28. What does the mine look like?
The place where mining machines are centrally managed, with temperature and humidity monitoring, dustproof and other measures. Also go to the noise!
29. How does the mining pool mine?
The mining pool breaks through the geographical restrictions, and combines the computing power of miners and mining farms around the world to mine together. The mining pool is responsible for information packaging, and the incoming mining farm computing power is responsible for competing for bookkeeping rights. The bitcoin rewards obtained by mining in the mining pool will be distributed according to the proportion of computing power contributed by each miner. At present, there are relatively large mining pools in the world: Fishpond, Antpool, Biwang, Guochi, and BITFURY.
30. What is computing power?
How many hash collisions (that is, the solution method) a mining machine can do per second is the representative of its computing power. The unit is HASH/S, which can be simply understood as computing power. The percentage of computing power represents the probability of successful competition for bookkeeping rights.
31. What is competitive bookkeeping?
The bookkeeping method of the Bitcoin system solves the problem of how to ensure the consistency of the ledger in the decentralized bookkeeping system. There is a centralized bookkeeping agency in the Bitcoin system, and each node has the right to bookkeeping. The miners who have obtained the accounting right are responsible for accounting and synchronizing the accounting information to the entire network.
5. Midstream of the blockchain industry chain - transaction
32. How to invest in blockchain assets?
There are many investment channels, on-site trading, OTC trading, centralized trading platform, decentralized trading platform. Investment methods include trend trading, hedging, and cross-platform moving.
33. How to invest in blockchain assets on the trading platform?
The most mainstream way to obtain blockchain assets when making purchases on trading platforms is on-site trading. The trading platform shields the transaction details, and does not know who the transaction party is or how many people, but the trading platform will record the pending order price and historical transaction records, and draw the K-line chart to facilitate traders to analyze the trend. such as Huobi.Pro
34. What is quantitative trading?
Also known as automated trading, it replaces human subjective judgments with advanced mathematical models and reduces the impact of investor sentiment fluctuations. Including cross-platform moving bricks, trend trading, hedging, etc. Cross-platform trading means that when the price difference between different target platforms reaches a certain amount, sell on a platform with a high price and buy on a platform with a low price. Trend trading is more complicated. Sell and buy signals are issued according to trend indicators. Hedging refers to simultaneously conducting two trades in opposite directions related to the market, which are equal to the amount of profit and loss, so as to achieve the effect of hedging risks.
35. How are blockchain assets traded over-the-counter?
It is also called OTC transaction. The user finds the counterparty by himself and does not match the transaction through the trading platform. The transaction price is determined by the two parties through negotiation, which can be negotiated in person or by telephone. There are also now OTC platforms for traders to choose counterparties. such as Localbitcoins and Huobi.pro
36. What is a decentralized trading platform?
不需要注册账户，使用个人数字资产账户即可参与交易，每笔交易都通过区块链进行，需要等待区块链的确认才算交易成功。不负责保管用户的资产和私钥等信息。一方面避免交易平台的道德信息，另一方面要求保管好自己的私钥。存在流动性低，交易处理速度慢等特点，目前交易量仅占全球数字资产交易总量0.03%。Huobi.pro上面有去中心化平台交易入口
37.币币交易是什么？
用一种区块链资产定价另一种区块链资产，比如说用比特币定价以太坊。会产生ETH/BTC交易对，该交易对的价格表示你需要用多少比特币可以买到一个以太坊。可以避开法定货币在中间进行交易，全球一半的区块链资产通过币币交易进行流传。交易平台有：Huobi.pro
六. 区块链产业链中游-存储
38.比特币钱包是干嘛的？
比特币钱包里存储着你的比特币信息，包括比特币地址，类似于你的银行卡账号，私钥，类似于银行卡密码，可以存储多个比特币地址和对应的独立私钥，比特币钱包的核心功能就是保护你的私钥。形态有PC或者手机钱包客户端，在线网页钱包，笔记本，大脑等都是比特币钱包，所以分散式存储都可以降低风险。
39.冷钱包 热钱包
按照私钥的存储方式分为冷钱包和热钱包，冷钱包指网络不能访问到你私钥的钱包，往往依靠冷设备确保比特币私钥安全性。如不联网的PC，写着私钥的小本本。热钱包是指互联网能够访问你私钥的钱包，在线钱包的形式，使用时，在不同平台设置不同密码，且开启二次认证。注意谁手握私钥谁才是比特币正真的主人。
40.全节点钱包，轻钱包
钱包可分为全节点钱包，轻钱包，中心化钱包。全节点钱包的代表是bitcoin-core核心钱包，需要同步所有区块链数据，占用很大内存，可以完全实现去中心化。轻钱包依赖比特币网络上其他全节点，仅同步和自己相关的数据，基本可以实现去中心化。中心化钱包不依赖比特币网络，所有的数据均从自己的中心化服务器获得，但交易效率很高，可以实时到账。你在交易平台注册的账号就是中心化钱包。
七. 区块链产业链中游-存储
41.比特币可以用于支付吗？
部分国家可以用于支付，比如说日本和德国大部分商家通过第三方机构间接接受比特币，用户使用比特币支付后，立刻通过第三方变换成法币，然后将法币交给商家。用比特币支付很简单，打开手机上的比特币钱包，扫描二维码，或者点击比特币地址跳转到PC客户端进行支付就可以。扫码后会显示比特币的实时汇率，双方确认后，再进行支付。