[#KeyFingerprint]
= KeyFingerprint
:mrdocs:

The first four bytes of a key identifier, used as a BIP32 parent fingerprint&period;

== Synopsis

Declared in `&lt;pubkey&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
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using KeyFingerprint = std::array&lt;unsigned char, 4&gt;;
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