chg-12 reproduction
Public source retained with the related article. Generated results, dependency directories, runtime storage, secrets, and oversized binary artifacts are intentionally excluded.
README
# CHG-12 stored-data reproduction
This deterministic PHP fixture demonstrates the mechanism in “Stored Data Is a
Caller You Cannot Find with Code Search.”
It proves four synthetic cases:
- the current canonical value hydrates;
- one historical lowercase value fails under strict enum hydration;
- a bounded compatibility reader accepts and canonicalizes that value; and
- the compatibility reader still rejects an unknown value.
Run:
```sh
php experiment.php
```
The fixture models parser behavior. It is not a private schema, database
backfill, affected-row inventory, or production incident replay.