[#btck-ChainParams-2constructor-005]
= xref:btck.adoc[btck]::xref:btck/ChainParams.adoc[ChainParams]::ChainParams
:relfileprefix: ../../
:mrdocs:

Constructs signet parameters from a custom challenge script&period;

== Synopsis

Declared in `&lt;kernel&sol;bitcoinkernel&lowbar;wrapper&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
explicit
ChainParams(std::span&lt;std::byte const&gt; signet&lowbar;challenge);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *signet&lowbar;challenge*
| The signet challenge script bytes&period;
|===


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