[#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.

== Synopsis

Declared in `<kernel/notifications_interface.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
virtual
void
headerTip(
    xref:SynchronizationState.adoc[SynchronizationState] state,
    int64_t height,
    int64_t timestamp,
    bool presync);
----

== Parameters

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


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