diff --git a/README.md b/README.md
index 23dc7cbb..0fd2a96d 100644
--- a/README.md
+++ b/README.md
@@ -138,7 +138,7 @@ What exists now is enough to evaluate the thesis:
 - heartbeat, sleep, memory, and Persona-state machinery inherited from live
   VoidBot lessons
 - Hands, Eyes, Soul, Mind, Continuity, and Substrate Gate receipt families
-- a Proprioception whitepaper mapping Epiphany's body, owners, invariants, and
+- a Modeling whitepaper mapping Epiphany's body, owners, invariants, and
   cut lines
 - an investor brief tying Epiphany to the Bifrost-first proof loop
 
diff --git a/docs/README.md b/docs/README.md
index 12f12d7d..89773fd1 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -8,7 +8,7 @@ outside the working notes.
 - [Epiphany investor brief](./epiphany_investor_brief.md): one-page value
   summary for investors, partners, and design-partner conversations.
 - [Epiphany Body whitepaper](./epiphany_body_whitepaper.tex): source TeX for
-  the Proprioception architecture overview.
+  the Modeling architecture overview.
 - [Epiphany Body whitepaper PDF](./epiphany_body_whitepaper.pdf): compiled
   whitepaper for sharing.
 
diff --git a/docs/epiphany_investor_brief.md b/docs/epiphany_investor_brief.md
index f4f4e751..58b59f36 100644
--- a/docs/epiphany_investor_brief.md
+++ b/docs/epiphany_investor_brief.md
@@ -50,7 +50,7 @@ Epiphany is already more than a pitch deck. The current repo contains:
   contract surfaces
 - local operator commands for status, coordinator runs, smoke checks, and
   CultMesh/Verse context
-- a Proprioception whitepaper that maps the body, owners, inputs, outputs,
+- a Modeling whitepaper that maps the body, owners, inputs, outputs,
   invariants, bridges, and current cut line
 
 The key architectural move is extraction: Epiphany began as a Codex-derived
diff --git a/epiphany-core/src/coordinator_launch_context.rs b/epiphany-core/src/coordinator_launch_context.rs
index cadc2704..6c478e88 100644
--- a/epiphany-core/src/coordinator_launch_context.rs
+++ b/epiphany-core/src/coordinator_launch_context.rs
@@ -297,13 +297,13 @@ pub fn append_modeling_work_loop_telemetry_context(
         telemetry.telemetry_id = format!("{}-soul-{}", telemetry.telemetry_id, state.revision);
         telemetry.produced_at_utc = Utc::now().to_rfc3339_opts(SecondsFormat::Secs, true);
         telemetry.source_stage = "hands+soul".to_string();
-        telemetry.target_stages = vec!["proprioception".to_string()];
+        telemetry.target_stages = vec!["modeling".to_string()];
         telemetry.soul_receipt_ids = soul_receipts
             .iter()
             .map(|receipt| receipt.id.clone())
             .collect();
         telemetry.summary = format!(
-            "{} Soul acceptance telemetry attached for Proprioception model update.",
+            "{} Soul acceptance telemetry attached for Modeling model update.",
             telemetry.summary
         );
         write_epiphany_cultmesh_work_loop_telemetry(&store, telemetry.clone()).map_err(
@@ -315,9 +315,9 @@ pub fn append_modeling_work_loop_telemetry_context(
             },
         )?;
     }
-    context.push_str("\n\n<proprioception_work_loop_telemetry>\n");
+    context.push_str("\n\n<modeling_work_loop_telemetry>\n");
     context.push_str(
-        "Proprioception is modeling the machine after Soul has reviewed the latest Hands consequence telemetry. This packet is loaded from the internal CultMesh Verse, not reconstructed from chat memory.\n",
+        "Modeling is updating the machine model after Soul has reviewed the latest Hands consequence telemetry. This packet is loaded from the internal CultMesh Verse, not reconstructed from chat memory.\n",
     );
     context.push_str(&render_work_loop_telemetry(&telemetry));
     if !soul_receipts.is_empty() {
@@ -336,7 +336,7 @@ pub fn append_modeling_work_loop_telemetry_context(
     context.push_str(
         "Update the machine model from this verified consequence before another Hands turn. Do not request a new Eyes step merely to rediscover this already-typed telemetry.\n",
     );
-    context.push_str("</proprioception_work_loop_telemetry>");
+    context.push_str("</modeling_work_loop_telemetry>");
     Ok(context)
 }
 
@@ -418,7 +418,7 @@ fn work_loop_telemetry_from_hands_chain(
         thread_id: state.last_updated_turn_id.clone().unwrap_or_default(),
         produced_at_utc: Utc::now().to_rfc3339_opts(SecondsFormat::Secs, true),
         source_stage: "hands".to_string(),
-        target_stages: vec!["soul".to_string(), "proprioception".to_string()],
+        target_stages: vec!["soul".to_string(), "modeling".to_string()],
         lower_bound_receipt_at: lower_bound_receipt_at.to_string(),
         hands_intent_id: chain.intent_id.clone(),
         hands_review_id: chain.review_id.clone(),
@@ -1355,7 +1355,7 @@ mod tests {
         assert_eq!(telemetry.hands_commit_receipt_id, "hands-commit-context");
         assert_eq!(
             telemetry.target_stages,
-            vec!["soul".to_string(), "proprioception".to_string()]
+            vec!["soul".to_string(), "modeling".to_string()]
         );
         assert!(
             telemetry
@@ -1446,7 +1446,7 @@ mod tests {
             &state,
         )
         .map_err(anyhow::Error::msg)?;
-        assert!(modeling_context.contains("<proprioception_work_loop_telemetry>"));
+        assert!(modeling_context.contains("<modeling_work_loop_telemetry>"));
         assert!(modeling_context.contains("hands-patch-context"));
         assert!(modeling_context.contains("accept-verification-context"));
         assert!(modeling_context.contains("Soul acceptance telemetry"));
@@ -1464,7 +1464,7 @@ mod tests {
         )?
         .expect("Modeling launch should preserve enriched CultMesh telemetry");
         assert_eq!(telemetry.source_stage, "hands+soul");
-        assert_eq!(telemetry.target_stages, vec!["proprioception".to_string()]);
+        assert_eq!(telemetry.target_stages, vec!["modeling".to_string()]);
         assert_eq!(
             telemetry.soul_receipt_ids,
             vec!["accept-verification-context".to_string()]
diff --git a/notes/epiphany-fork-implementation-plan.md b/notes/epiphany-fork-implementation-plan.md
index ce881e41..7561ed81 100644
--- a/notes/epiphany-fork-implementation-plan.md
+++ b/notes/epiphany-fork-implementation-plan.md
@@ -78,7 +78,7 @@ Exit evidence:
   chosen explicit store contract;
 - `EpiphanyCoordinatorService` path names match real ownership.
 
-### 1. Repair Proprioception
+### 1. Repair Modeling
 
 - Keep `notes/epiphany-current-algorithmic-map.md` aligned with source.
 - Distinguish historical evidence from current mechanism in long handoffs.
diff --git a/notes/fresh-workspace-handoff.md b/notes/fresh-workspace-handoff.md
index 64e0b644..cae8f22a 100644
--- a/notes/fresh-workspace-handoff.md
+++ b/notes/fresh-workspace-handoff.md
@@ -1,5 +1,15 @@
 # Fresh Workspace Handoff
 
+## Modeling name authority correction - 2026-07-14
+
+Modeling is the standing embodied organ that models the Body. Proprioception is
+a retired legacy name, not a parallel faculty or worker posture. The global
+Codex doctrine had missed this migration and could still force Self to dispatch
+`Proprioception` workers; runtime work-loop telemetry also targeted the retired
+stage name. Both are corrected to Modeling. Keep legacy string handling only
+where it migrates old persisted agent identity into Modeling, and keep old prose
+only where it is clearly historical evidence.
+
 ## Current orientation — 2026-07-12
 
 ### Aetheria organ-structure evidence — 2026-07-13
diff --git a/state/ledgers.msgpack b/state/ledgers.msgpack
index 6261d99d..bb73a9b3 100644
Binary files a/state/ledgers.msgpack and b/state/ledgers.msgpack differ
diff --git a/state/map.yaml b/state/map.yaml
index fdea1d08..72a06e31 100644
--- a/state/map.yaml
+++ b/state/map.yaml
@@ -360,6 +360,16 @@ rejected_paths:
 
 current_status:
   summary: Epiphany state, prompts, coordinator policy, runtime spine, receipts, and operator surfaces are native typed Rust/CultCache/CultMesh/CultNet organs. Vendored Codex retains Codex-native app-server plus OpenAI-compatible auth/model transport only. Canonical state has one transaction owner and one coordinator store boundary; native status/coordinator JSON emits `state`, and the extinct Codex Epiphany routes, DTOs, bridge, migration, and compatibility field cannot decide or describe native truth.
+  organ_naming_authority: >
+    Modeling is the standing embodied organ that models the Body: architecture,
+    dataflow, seams, invariants, graph/checkpoint anatomy, and source-grounded
+    self-sensing. Proprioception is a retired legacy name, not a second organ,
+    task posture, worker title, prompt stage, telemetry target, or whitepaper
+    authority. The global Codex doctrine, runtime Modeling telemetry projection,
+    live implementation plan, README, and packaged docs use Modeling. Legacy
+    string migration may still recognize Proprioception only to rewrite old
+    persisted agent identity into Modeling; archived/historical evidence may
+    retain the former name as provenance.
   selected_proposal_authority: >
     Direct User intake and exact selection are coordinator/runtime-spine
     artifacts. The coordinator launch transaction alone injects the typed