[#PSBTInput-sha256_preimages]
= xref:PSBTInput.adoc[PSBTInput]::sha256_preimages
:relfileprefix: ../
:mrdocs:

SHA256 preimages keyed by their hash.

== Synopsis

Declared in `<psbt.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
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std::map<uint256, std::vector<unsigned char>> sha256_preimages;
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