A key whose value is a binary number that uniquely identifies static code.
- macOS 10.6+
The value is a
CFData object. This identifier can be used to recognize this specific code in the future. This identifier is tied to the current version of the code, unlike the
k identifier, which remains stable across developer-approved updates. The algorithm used for the
k identifier may change over time. However, the identifier remains stable for existing, signed code.