[#txindex-02-BlockHashKey-block_hash]
= xref:txindex-02.adoc[txindex]::xref:txindex-02/BlockHashKey.adoc[BlockHashKey]::block_hash
:relfileprefix: ../../
:mrdocs:

Hash of the block to look up.

== Synopsis

Declared in `<index/txindex_key.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:uint256.adoc[uint256] block_hash;
----


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