diff --git a/scripts/verify-binary-layout.mjs b/scripts/verify-binary-layout.mjs
index 996eb3966..1f3b5e4bc 100644
--- a/scripts/verify-binary-layout.mjs
+++ b/scripts/verify-binary-layout.mjs
@@ -1283,7 +1283,7 @@ async function inspect(
     evidence.provider.version,
     "pwntools@4.15.0;pyelftools@0.33;unicorn@2.1.2",
   );
-  assert.deepEqual(evidence.normalized_result, evidence.raw_result);
+  assert.equal(evidence.raw_result, null);
   assert.equal(evidence.normalized_result.diagnostics.truncated, false);
   return evidence.normalized_result;
 }
diff --git a/scripts/verify/recorded-crash/public.mjs b/scripts/verify/recorded-crash/public.mjs
index 76713bf9f..ecdfd14cd 100644
--- a/scripts/verify/recorded-crash/public.mjs
+++ b/scripts/verify/recorded-crash/public.mjs
@@ -80,7 +80,7 @@ export async function connectRecordedCrash({ entrypoint, environment }) {
         evidence.confidence,
         debuggerContext ? "derived" : "observed",
       );
-      assert.deepEqual(evidence.raw_result, report);
+      assert.equal(evidence.raw_result, null);
       assert.equal(evidence.subject.local_path, path);
       assert.equal(report.artifact.path, path);
       assert.equal(
diff --git a/src/application/binaryDiagnostics/BinaryLayoutService.test.ts b/src/application/binaryDiagnostics/BinaryLayoutService.test.ts
index e8f3e2c6d..e65da65f6 100644
--- a/src/application/binaryDiagnostics/BinaryLayoutService.test.ts
+++ b/src/application/binaryDiagnostics/BinaryLayoutService.test.ts
@@ -5,6 +5,7 @@ import {
   BINARY_LAYOUT_TEST_PROVIDER,
 } from "../../../tests/fixtures/binaryDiagnostics/layout.js";
 import { AnalysisCapabilityUnavailableError } from "../../domain/analysisErrorCore.js";
+import { parseEvidence } from "../../domain/evidence.js";
 import { err, ok } from "../../domain/result.js";
 
 it.each([
@@ -28,6 +29,19 @@ it.each([
   },
 );
 
+it("records the decoded layout once in its Evidence", async () => {
+  const layout = binaryLayoutFixture();
+  const service = new BinaryLayoutService({
+    identity: BINARY_LAYOUT_TEST_PROVIDER,
+    inspect: () => Promise.resolve(ok(layout)),
+  });
+  const result = await service.inspect({ path: layout.artifact.path });
+  if (!result.ok) throw result.error;
+  const evidence = parseEvidence(result.value);
+  expect(evidence.normalized_result).toEqual(layout);
+  expect(evidence.raw_result).toBeNull();
+});
+
 it("preserves a provider's actionable unsupported reason", async () => {
   const failure = new AnalysisCapabilityUnavailableError(
     "fixture-layout",
diff --git a/src/application/binaryDiagnostics/BinaryLayoutService.ts b/src/application/binaryDiagnostics/BinaryLayoutService.ts
index 11bfeb76e..bdb07da56 100644
--- a/src/application/binaryDiagnostics/BinaryLayoutService.ts
+++ b/src/application/binaryDiagnostics/BinaryLayoutService.ts
@@ -78,7 +78,8 @@ export class BinaryLayoutService {
           operation: OPERATION,
           parameters: input.data,
           result: value,
-          rawResult: value,
+          // The decoded report is the only representation; do not repeat it.
+          rawResult: null,
           confidence: "observed",
           limitations: value.limitations,
           locations: [{ kind: "artifact-path", path: value.artifact.path }],
diff --git a/src/application/binaryDiagnostics/RecordedCrashService.test.ts b/src/application/binaryDiagnostics/RecordedCrashService.test.ts
index 6060aef33..0ab49ee1b 100644
--- a/src/application/binaryDiagnostics/RecordedCrashService.test.ts
+++ b/src/application/binaryDiagnostics/RecordedCrashService.test.ts
@@ -24,6 +24,7 @@ it("labels an envelope containing debugger-derived maps as derived", async () =>
   const evidence = parseEvidence(result.value);
   expect(evidence.confidence).toBe("derived");
   expect(evidence.normalized_result).toEqual(fixture);
+  expect(evidence.raw_result).toBeNull();
 });
 
 it.each([
diff --git a/src/application/binaryDiagnostics/RecordedCrashService.ts b/src/application/binaryDiagnostics/RecordedCrashService.ts
index cfc9278dc..5a4fff645 100644
--- a/src/application/binaryDiagnostics/RecordedCrashService.ts
+++ b/src/application/binaryDiagnostics/RecordedCrashService.ts
@@ -83,7 +83,8 @@ export class RecordedCrashService {
           operation: OPERATION,
           parameters: input.data,
           result: value,
-          rawResult: value,
+          // The decoded report is the only representation; do not repeat it.
+          rawResult: null,
           confidence:
             value.debugger.status === "available" ? "derived" : "observed",
           limitations: value.limitations,
diff --git a/tests/fixtures/analysisView.ts b/tests/fixtures/analysisView.ts
index 0f928a22a..d3be2b1e3 100644
--- a/tests/fixtures/analysisView.ts
+++ b/tests/fixtures/analysisView.ts
@@ -99,7 +99,7 @@ export const analysisViewLayoutEvidence = (
       operation: "inspect_binary_layout",
       parameters: { path: layout.artifact.path },
       result: layout,
-      rawResult: layout,
+      rawResult: null,
       confidence: "observed",
       limitations: layout.limitations,
       locations: [{ kind: "artifact-path", path: layout.artifact.path }],