[#node-BlockMap]
= xref:node.adoc[node]::BlockMap
:relfileprefix: ../
:mrdocs:

Map from block hash to its in‐memory block index entry.

== Synopsis

Declared in `<node/blockstorage.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
using BlockMap = std::unordered_map<uint256, CBlockIndex, BlockHasher>;
----


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