[#Chainstate-m_from_snapshot_blockhash]
= xref:Chainstate.adoc[Chainstate]::m_from_snapshot_blockhash
:relfileprefix: ../
:mrdocs:

The blockhash which is the base of the snapshot this chainstate was created from.

== Synopsis

Declared in `<validation.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
std::optional<uint256> const m_from_snapshot_blockhash;
----

== Description

std::nullopt if this chainstate was not created from a snapshot.


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