A cold atom is an atom whose type is an exact value equal to itself. This in contrast to a warm atom, whose type is a general aura. Cold atoms have a % prefix, for example %foo, %123, %0xdead.beef, etc.
Further Reading
- Atoms and Strings: A guide to atoms.
- Hoon School: Our guide to learning the Hoon programming language.
- “Hoon Syntax”: A Hoon School lesson that explains how atoms work.