[#CPubKey-RecoverCompact]
= xref:CPubKey.adoc[CPubKey]::RecoverCompact
:relfileprefix: ../
:mrdocs:

Recover a public key from a compact signature.

== Synopsis

Declared in `<pubkey.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool
RecoverCompact(
    xref:uint256.adoc[uint256] const& hash,
    std::vector<unsigned char> const& vchSig);
----

== Return Value

true if a public key was recovered into this object.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *hash*
| The 32‐byte message hash that was signed.
| *vchSig*
| The compact signature to recover from.
|===


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