[#ChainCode-begin-0a]
= xref:ChainCode.adoc[ChainCode]::begin
:relfileprefix: ../
:mrdocs:

Returns a pointer to the first byte of the blob.

== Synopsis

Declared in `<uint256.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
constexpr
unsigned char*
begin();
----

== Return Value

A pointer to the first byte of the blob.


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