[#CCoinsViewCache-m_block_hash]
= xref:CCoinsViewCache.adoc[CCoinsViewCache]::m&lowbar;block&lowbar;hash
:relfileprefix: ../
:mrdocs:

Make mutable so that we can &quot;fill the cache&quot; even from Get&hyphen;methods declared as &quot;const&quot;&period;

== Synopsis

Declared in `&lt;coins&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
mutable
xref:uint256.adoc[uint256] m&lowbar;block&lowbar;hash;
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