Bitcoin has a completely distributed architecture, without any single trusted entity.

比特币的结构是完全分散式的，没有任何可信实体。

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Certificate Authoriaty (ca) : certificate Authority (ca) is a trusted entity that issues digital certificates for use by other parties.

Certificate Authoriaty (ca)：认证机构(Certificate Authority, ca)是发布数字证书供其他方使用的受信任实体。

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For such a trusted entity, the hash value and signature are calculated and shipped as part of the their AIX installables and stored in TSD on the destination system.

对于这样的可信实体，对应的散列值和签名是作为其AIX可安装文件的一部分进行计算和分发的，并存储在目标系统上的TSD中。

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