[#kernel-Notifications-headerTip]
= xref:kernel.adoc[kernel]::xref:kernel/Notifications.adoc[Notifications]::headerTip
:relfileprefix: ../../
:mrdocs:

Notifies that a new block header has been received during header sync&period;

== Synopsis

Declared in `&lt;kernel&sol;notifications&lowbar;interface&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
virtual
void
headerTip(
    xref:SynchronizationState.adoc[SynchronizationState] state,
    int64&lowbar;t height,
    int64&lowbar;t timestamp,
    bool presync);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *state*
| Current synchronization state of the node&period;
| *height*
| Height of the new header tip&period;
| *timestamp*
| Block time of the new header tip&period;
| *presync*
| Whether the header was seen during the presynchronization phase&period;
|===


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