共识和公证人

Question

我一直在努力理解共识和公证人的概念，有一些问题：

• 是否所有节点/参与者都需要进行验证协商一致，以确保事务输入、输出是有效的？它是否类似于验证比特币的输入交易？
• 当涉及到一个国家的唯一继承者(也就是防止双重支出)时，唯一共识是必须的，而通过使用唯一性共识，公证服务是必需的？
• (这让我感到困惑)在包含验证和非验证公证人的公证服务中，验证公证员的做法是否与验证所有事务的验证共识相同(可以追溯到每个州的初始阶段以检查签名和正确性)，这就是为什么称为验证公证服务的原因吗？
• 这两个公证服务是否都会在本地存储映射，以检查拟议事务的消耗状态？如果是，我怎样才能看到地图的细节？

谢谢，干杯，

Answer 1

• 不是的。只有参与给定事务的参与者，再加上事务的公证，才能验证给定的事务。这是Corda隐私优先方法的核心，在这种方法中，交易信息只在需要知道的基础上分配。

- Yes, each transaction is assigned to a specific notary service (there may be several on the network), and the notary ensures that there are no double-spends.
- That's correct. The non-verifying notary simply checks that the transaction's inputs haven't already been spent. The verifying notary also "walks the chain" to ensure that the transaction is valid. You have a choice between using a non-verifying and a verifying notary for each transaction, depending on how much information you wish to disclose.
- Both types of notaries store the information about which states have been spent locally. Only the notary itself can see the details of this map, by checking the NODE\_NOTARY\_COMMIT\_LOG in its H2 database.

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