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

Read the blockhash of the snapshot base block that was used to construct the chainstate.

== Synopsis

Declared in `<node/utxo_snapshot.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[requires_capability(0x7f2e40e75210)]]
std::optional<uint256>
ReadSnapshotBaseBlockhash(xref:fs/path.adoc[fs::path] chaindir);
----

== Return Value

The snapshot base blockhash, or std::nullopt if it is absent.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *chaindir*
| The chainstate directory to read the base blockhash from.
|===


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