[#txindex-02-HASH_PREFIX_SIZE]
= xref:txindex-02.adoc[txindex]::HASH&lowbar;PREFIX&lowbar;SIZE
:relfileprefix: ../
:mrdocs:

Number of leading txid&hyphen;hash bytes kept in a hashed txindex key&period;

== Synopsis

Declared in `&lt;index&sol;txindex&lowbar;key&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
constexpr int HASH&lowbar;PREFIX&lowbar;SIZE = &lcub;5&rcub;;
----


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