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

The previous transaction id spent by this input (PSBTv2).

== Synopsis

Declared in `<psbt.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:Txid.adoc[Txid] prev_txid;
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