These docs are under active development and cover the v0.20 Kobicha security model.
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§2.3

Comparison

§2.3.1 Equality

Two GUIDs are equal if and only if their 16-byte binary representations are identical.

GUID comparison MUST be performed on the binary representation, not on string representations.

ⓘ Informative
Byte-for-byte comparison of the binary form avoids case sensitivity and brace-presence issues that would arise from comparing string representations.

§2.3.2 Ordering

This specification does not define a total ordering for GUIDs. Specifications that require an ordered GUID collection MUST define their ordering convention explicitly.