diff --git a/studio.el b/studio.el
index dfc40f0..0094509 100644
--- a/studio.el
+++ b/studio.el
@@ -53,8 +53,23 @@ fn handle_config(method: String, body: String) -> String {
 }
 
 fn dharma_registry() -> String {
+    // COMPILED IDENTITY, not state (2026-08-09). soul_principal had no producer at
+    // all — the #132 gate flagged it as a dead read and the registry reported an
+    // empty principal under a heading that says "Principal Covenant v1". The value
+    // was never missing: it is declared in soul.el's cgi block, and as of the
+    // codegen fix it is compiled into the binary and loaded at startup.
+    //
+    // Read it from the compiled constant rather than the state store. The design is
+    // explicit that this identity is "not modifiable by any runtime mechanism
+    // including environment variables, configuration files, or API calls" — so
+    // publishing it into state (the cheap fix) would have recreated exactly the
+    // mutable copy it forbids. cgi_principal() is read-only and has no setter.
+    //
+    // cgi_id keeps its state read deliberately: the RUNTIME instance id is a
+    // different fact from the compiled dharma_id, and conflating them would hide
+    // the case where a binary runs under an id its declaration never claimed.
     let cgi_id: String = state_get("soul_cgi_id")
-    let principal: String = state_get("soul_principal")
+    let principal: String = cgi_principal()
     return "{\"registry\":[{\"cgi\":\"" + cgi_id + "\","
         + "\"principal\":\"" + principal + "\","
         + "\"covenant\":\"Principal Covenant v1\","
diff --git a/vendor/el-runtime/v1.0.0-20260501/el_runtime.c b/vendor/el-runtime/v1.0.0-20260501/el_runtime.c
index 67d829e..5c074f2 100644
--- a/vendor/el-runtime/v1.0.0-20260501/el_runtime.c
+++ b/vendor/el-runtime/v1.0.0-20260501/el_runtime.c
@@ -5634,6 +5634,25 @@ void el_cgi_init(el_val_t name, el_val_t dharma_id, el_val_t principal,
 }
 
 
+/* ── Compiled-identity accessors (2026-08-09) ─────────────────────────────────
+ * el_cgi_init loads the declaration into these globals at startup and printed
+ * them, and NOTHING read them back out — no accessor existed, and el_cgi_init
+ * writes no state. So a binary carried its declared identity and every consumer
+ * still read it from the mutable state store, which is exactly what IDPROTO
+ * claims 1-2 forbid ("not modifiable by any runtime mechanism including
+ * environment variables, configuration files, or API calls").
+ *
+ * These are READ-ONLY on purpose. There is deliberately no setter: publishing
+ * the values into the state store would have been one line and would have
+ * recreated the mutable copy the design prohibits. A caller can read the
+ * compiled identity; nothing can change it after el_cgi_init.
+ */
+el_val_t cgi_name(void)      { return EL_STR(_el_cgi_name      ? _el_cgi_name      : ""); }
+el_val_t cgi_dharma_id(void) { return EL_STR(_el_cgi_dharma_id ? _el_cgi_dharma_id : ""); }
+el_val_t cgi_principal(void) { return EL_STR(_el_cgi_principal ? _el_cgi_principal : ""); }
+el_val_t cgi_network(void)   { return EL_STR(_el_cgi_network   ? _el_cgi_network   : ""); }
+el_val_t cgi_engram(void)    { return EL_STR(_el_cgi_engram    ? _el_cgi_engram    : ""); }
+
 /* ── Batch 3: Engram in-process graph store ──────────────────────────────── */
 /*
  * Single global EngramStore allocated lazily on first call. All node and
diff --git a/vendor/el-runtime/v1.0.0-20260501/el_runtime.h b/vendor/el-runtime/v1.0.0-20260501/el_runtime.h
index dfb22da..349bbce 100644
--- a/vendor/el-runtime/v1.0.0-20260501/el_runtime.h
+++ b/vendor/el-runtime/v1.0.0-20260501/el_runtime.h
@@ -782,6 +782,14 @@ el_val_t trace_span_start(el_val_t name);
 el_val_t trace_span_end(el_val_t span_handle);
 el_val_t emit_event(el_val_t name, el_val_t duration_ms);
 
+/* Compiled-identity accessors — read-only by design (2026-08-09). */
+el_val_t cgi_name(void);
+el_val_t cgi_dharma_id(void);
+el_val_t cgi_principal(void);
+el_val_t cgi_network(void);
+el_val_t cgi_engram(void);
+
 #ifdef __cplusplus
 }
+
 #endif