[#btck_chain_parameters_create_signet]
= btck_chain_parameters_create_signet
:mrdocs:

Create a signet chain parameters struct with a user‐provided challenge.

== Synopsis

Declared in `<kernel/bitcoinkernel.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[nodiscard]]
xref:btck_ChainParameters-0f.adoc[btck_ChainParameters]*
btck_chain_parameters_create_signet(
    void const* challenge,
    size_t challenge_len);
----

== Return Value

An allocated chain parameters opaque struct.

[NOTE]
====
The return value https://en.cppreference.com/cpp/language/attributes/nodiscard[should not be discarded^].
====
== Parameters

[cols="1,4"]
|===
| Name| Description
| *challenge* [in]
| The signet challenge value. Blocks must satisfy it in order to be valid.
| *challenge_len* [in]
| The length of the signet challenge.
|===


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