[#interfaces-BlockInfo-file_number]
= xref:interfaces.adoc[interfaces]::xref:interfaces/BlockInfo.adoc[BlockInfo]::file_number
:relfileprefix: ../../
:mrdocs:

Index of the block file on disk that stores this block.

== Synopsis

Declared in `<kernel/chain.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int file_number = ‐1;
----


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