Resolving the Expression Grammar

The implementation sprint resolved a collision. The existing IoV Spec already used tilde depth as canonical hierarchy:

Using one leading tilde for an application would falsely make it a Level 1 protocol. The solution was enclosed notation:

~<registered expression>~

So ~~~Cortisol is the canonical facet, while ~Cortisol Checker~ is the registered application that resolves to a handler. The enclosing tildes are delimiters, not hierarchy depth.

This distinction also separates the new operational ecosystem from the existing Spec. The Spec defines the grammar and conformance contract. The Expression Registry stores versions, handlers, policies, and lifecycle state. The Foundation displays published expressions. The handler executes them.

The correction preserves the old paper as historical thinking while giving Word Wallet Web a precise interoperable language.

The live IoV Spec API is the canonical machine-readable source for the hierarchy and registered-expression contract.