区块链中的侧链是什么？

阿呆：小星，最近见你一改往日朴素的风格，衣着光鲜靓丽的很，在哪里发财了呀。

Xiao Xiao Xing, as soon as you've changed your style, you're very handsome and rich.

小星：还好还好啦，最近傍上大款了，大树底下好乘凉呀。

Xiao Xiao Xing: It's all right. We've got a lot of money in the evening. It's so cool under the big tree.

阿呆：哪个大款，不会是被包养了吧，哈哈……

Ace: Which one of the big ones is not being raised. Ha-ha-ha-ha-ha-ha-ha-ha-ha-ha-ha-ha-ha-ha-ha-ha-ha-ha-ha-ha-ha-ha-ha-ha-ha.

小星：说什么呢，我是那样的人吗，我给BTC当马仔，嗯，马仔这个名字不好听，我给BTC做“侧链”。

Xiaoxing: What do you mean, I'm that kind of person? I'm a horseman for BTC, and, uh, the name's a bad one, and I'm making BTC's side chain.

1.侧链是做什么

What's the side chain for ?

阿呆：马仔就马仔，叫什么“侧链”，你这个马仔能给BTC做什么呢？

AB: The pony is the pony. What's the side chain? What can you do for BTC?

小星：为BTC提供的服务呀，主要给它做“抵押贷款服务”，扩展BTC的业务范围和影响力。

Star: Services provided to BTC, mainly as a “mortgage service”, expanding the scope and impact of BTC operations.

阿呆：“抵押贷款服务”，这个怎么个玩法？

What kind of game is this?

小星：其实就是一个资产转移啦，你把BTC抵押给我，我给对应价值的小星币，简称XB，你就可以使用XB来做其他的事情，如果你把XB还给我，我就把BTC又还给你。

X: It's a transfer of assets. You mortgage the BTC to me. I give the corresponding value to the XB, so you can use the XB to do other things. If you give the XB back to me, I give the BTC back to you.

2.侧链与BTC服务过程

2. Side chain and BTC service

阿呆：听着有点意思，但是我还是不明白怎么回事，你给详细说一下。

CA: Sounds interesting, but I still don't see what's going on. Just give me some details.

小星：听我慢慢说，我的一个重要功能是支付验证(SPV)证明，BTC跟XB是一个对称的双向锚定，BTC和XB是相互独立的。步骤是这样的：

STAR: Listen to me slowly, one of my important functions is to pay certification (SPV) that BTC and XB are symmetrical two-way anchors, and BTC and XB are independent. Here's the step:

小星：我与比特币的枝搭关系可以看下图

Star: I can see the picture with the bitcoin branch.

小星：强调一下，BTC和XB转移资产是真实发生的，可不是打白条。当然，不只我一个可以为BTC做马仔，还有很多其他的马仔，如果某一个马仔出问题，是不能影响到其他的马樱游仔的。

Star: To emphasize that the BTC and XB transfer of assets is real, not white. Of course, I'm not the only one who can be a pony for BTC, there are many other ponies who, if something goes wrong with one horse, can't affect the others.

3.为什么需侧链

3. Why do you need a side chain

阿呆：小星你不就是跟BTC进行互换吗？为啥要用你呀。

DUDE: Aren't you just swapping with BTC? Why do you need it?

小星：这你就不懂了吧，我的XB币是跟BTC绑定的，你用BTC转账干啥的，转账慢，等半天，手续费还贵，你用我XB就不一样了呀，我可以做到转账快还没有手续费，不需要了，又可以换回BTC，我还可以提供更多便捷服务呀。

X: You don't understand. My XB is tied to BTC. What do you do with BTC transfers, slow transfers, half-day waits, extra fees?

小星：阿呆，你知道不，BTC的规则已经相对固定，很难在上面做太大的修改，修改会导致分叉，想要在比特币平台上做创新或扩展是比较困难的呀。

Star: DUDE: You know, BTC rules are relatively fixed, it's hard to change them too much, they can lead to a fork, and it's more difficult to innovate or expand on the Bitcoin platform.

阿呆：小星，说的你功能这么好，为啥不独立，非得给BTC当什么马仔呀，自己玩多开心呀，还不受BTC限制。

AB: Star, why don't you say you're so good? Why don't you be a horseboy for BTC? You're not bound by BTC.

4.侧链为啥要依附

4. Why are the flank chains attached to ?

小星：叹气一下，我一个新生的代币XB币，要人没人，要名气没名气，想要让人信我，得走多少路呀，还不一定走的通。

Star: Sigh, I'm a new-born token XB. I don't want anyone, I want to be famous, I want to be trusted, I have to go a lot of ways, I don't have to go.

阿呆：瞅你那损样，别人确实不敢信。

Assassin: Look at you. People do not believe you.

小星：嘿嘿一笑，但我傍上BTC，给他当马仔就不一样了呀，我与BTC挂钩，用脊搭销BTC作为储备来发行XB币，可以完成XB币的价值认可，是不是有点像金本位呀。

Star: Hey smile, but it's not the same for me to be a pony in the evening of BTC. I'm connected to BTC, and I'm using a spin-off BTC as a reserve to issue XB notes, so I can do the value recognition of XB. Is it a bit like a gold standard?

阿呆：这倒是， 你小子脑袋瓜灵活呀。

AB: That's true, you're so smart.

小星：哈哈……

Star: Ha-ha-ha.

小结

summing up