[#txindex-02-BlockSeqKey-block_seq]
= xref:txindex-02.adoc[txindex]::xref:txindex-02/BlockSeqKey.adoc[BlockSeqKey]::block_seq
:relfileprefix: ../../
:mrdocs:

Sequence number of the block to look up.

== Synopsis

Declared in `<index/txindex_key.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
uint32_t block_seq = {0};
----


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