[#XOnlyPubKey-2constructor-051]
= xref:XOnlyPubKey.adoc[XOnlyPubKey]::XOnlyPubKey
:relfileprefix: ../
:mrdocs:

Construct an x‐only pubkey from exactly 32 bytes.

== Synopsis

Declared in `<pubkey.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
constexpr
explicit
XOnlyPubKey(std::span<unsigned char const> bytes);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *bytes*
| The 32‐byte x coordinate.
|===


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