这个签名块文件存储相应的签名文件的数字签名。

This signature block file stores the digital signature of the corresponding signature file.

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这样一来，一个节点可以计算一个块的散列值；将较小的签名转移到对等节点，该节点也可以计算散列值，然后对两者进行比较。

In this way, a node computes a hash of a block; transfers the much smaller signature to the peer node, which also calculates the hash; and then compares them.

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与签名文件相关联的签名程序块文件，它存储了用于签名JAR文件的公共签名。

The signature block file associated with the signature file stores the public signature used to sign the JAR file.

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