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

Handle a new chain tip being connected.

== Synopsis

Declared in `<node/kernel_notifications.h>`

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

== Return Value

An interrupt result; Interrupted when the configured stop height is reached.

[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.
| *index*
| The block index of the new tip.
| *verification_progress*
| Estimated fraction of chain verification completed.
|===


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