My English is not perfect, so for a better understanding of the problem, after the English description I posted the Russian version of this text because most of the developers are Russian

I decided not to supplement the previous report #45, but to create a new one to highlight the problem. There are many similar methods that allow you to stop the network

To Reproduce
Shut down the netwo

BTC 检查点（CheckPoint）调研报告

BTC源码

BTC官方源码是C++写的，但是有一个官方认可的全节点是golang写的，叫btcd。

此调研报告是基于btcd源码的调研。毕竟golang的源码可读性高太多了，C++短期一下子可能搞不明白。

BTCD检查点的实现

检查点的组织结构

检查点的实现源码文件叫checkpoints.go,在blockchain目录下。

CheckPoint被描述为一个块高度和块Hash的二元组结构体:

type Checkpoint struct {
	Height int32
	Hash   *chainhash.Hash
}

该结构体对象出现在BlockChain结构体中，为该类的一个属性，从目录结构和代码组织结构上看，CheckPoin