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当我们在看Etherscan的时候,到底在看什么?
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没错！这篇就是给新手看的，区块链数据应用的自助指南！（建议PC阅读）
---这是十四君的第四篇原创文--
伴随上周爱死机的NFT事件，WEB3的世界里基建（与用户认知）严重薄弱的缺点，俨然成了众多爱好者想要深入的阻碍(实在被mint后NFT在哪里问烦了）。
所以如果你有以下这些疑惑，那么本文就是适合你的路引！
从交易所导出到我自己的钱包，到账了吗？ mintNFT的交易完成了，那我的资产在哪里？ 都说链上数据公开，如何提取无聊猿的全量持有用户？ 听说链上有各种奇特的套利机器人，他们在哪？
链上数据依据其所在的公链不同，几乎都会有各自的区块链浏览器。而Etherscan.io 就是以太坊的入口
本文从背景数据出发，解读块/交易/地址的详细信息含义，结合Etherscan的拓展统计信息案例，希望能帮助大家进一步打开web3的大门！
1. Etherscan能做什么？
以太坊中一切交互均公开，使用交易哈希（交易ID）即可查看一切相关活动，包含代币、智能合约以及钱包地址。
虽然Etherscan无需注册，但也可以创建个人账号，以便使用其附加功能。例如，为队列交易、访问开发者工具和创建数据源设置提醒通知。
这就好比，你如果发现了马斯克的地址，那么可以监听到他的每一笔交易走向。
2. Etherscan不能做什么？
Etherscan他并未开通以太坊钱包功能或存储私钥服务。所以，你也无法只用它来开展交易。如果你想要交易或存储加密货币，就需要加密货币钱包，如Trust Wallet、MetaMask、Math Wallet或是币安链钱包。
结合钱包管理私钥之下，才可使用Etherscan的便捷合约操作功能，执行一些基础的合约函数调用交易的发起。例如上周的爱死机NFT的mint交易详情可见：当奈飞的NFT忘记了web2的业务安全
3. Etherscan都有什么？
主要分3大类
基础性的规范数据查询入口 进阶性的常用数据统计分析 开发者用的定制化接口服务
3.1 公共基础信息
我们知道，所谓区块链是将若干笔交易执行后打包成块，发布并记录账本的技术，所谓合约是交易中利用备注区域携带了定制的代码，从而可以在虚拟机中执行代码逻辑。记录下每笔交易的原始信息，就可以逐个回放从而还原全部过程。
这涉及到公共信息的三个部分：交易，区块，地址。也就是下图中3个区域
而中间夹着的就是最常用的基本信息：
3.2 交易详情里有什么？
咱们任意选择一个最新的交易点进去，大多数数据都是一目了然的。
就像一个快递的整个生命周期：
快递单号是多少（Transaction Hash） 投递是否成功（Status） 对方什么时候收到（Timestamp） 从哪儿来from，到哪儿去to 被哪个快递员打包（block） 信封内有什么（value+input data) 邮费是多少（Transaction Fee）
值得注意的是，to地址可以是合约，可以是用户的地址（EOA），也可以是0x0 |
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