[#node-KernelNotifications-blockTip]
= xref:node.adoc[node]::xref:node/KernelNotifications.adoc[KernelNotifications]::blockTip
:relfileprefix: ../../
:mrdocs:

Handle a new chain tip being connected&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
&lsqb;&lsqb;nodiscard, requires&lowbar;capability(0x7f2e33c63488)&rsqb;&rsqb;
virtual
xref:kernel/InterruptResult.adoc[kernel::InterruptResult]
blockTip(
    xref:SynchronizationState.adoc[SynchronizationState] state,
    xref:CBlockIndex.adoc[CBlockIndex] const& index,
    double verification&lowbar;progress) override;
----

== Return Value

An interrupt result&semi; Interrupted when the configured stop height is reached&period;

[NOTE]
====
The return value https://en.cppreference.com/cpp/language/attributes/nodiscard[should not be discarded^].
====
== Parameters

[cols="1,4"]
|===
| Name| Description
| *state*
| The current synchronization state&period;
| *index*
| The block index of the new tip&period;
| *verification&lowbar;progress*
| Estimated fraction of chain verification completed&period;
|===


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