The Irwin Canonical Corpus — Instrument Register (v1.2, 2026)

This version (v1.2) updates the enumeration of canonical instruments comprising the Irwin Canonical Corpus. No canonical instrument content has been modified.No definitions, scope limits, classifications, models, boundary statements, or licenses have been altered. This update corrects instrument ordering, terminology alignment, and inclusion to accurately reflect the canonical corpus as publicly archived. All instruments listed are designated closed and are fully subject to the Irwin Canonical Corpus Freeze Declaration (2026). This register is declarative and enumerative only. It does not introduce theory, interpretation, application, or authority.