diff --git a/apps/indeedhub/manifest.yml b/apps/indeedhub/manifest.yml
index 31605ef9..b4f059cd 100644
--- a/apps/indeedhub/manifest.yml
+++ b/apps/indeedhub/manifest.yml
@@ -73,6 +73,8 @@ app:
       - exec: ["sh", "-c", "if ! grep -qE '<script[^>]*nostr-provider' /usr/share/nginx/html/index.html && ! grep -qE '(sub_filter|<script).*nostr-provider' /etc/nginx/conf.d/default.conf; then sed -i 's#</head>#<script src=\"/nostr-provider.js\"></script></head>#' /usr/share/nginx/html/index.html; fi"]
       - exec: ["sed", "-i", "s#tab-signer-v2#tab-signer-v4#g; s#tab-signer-v3#tab-signer-v4#g", "/etc/nginx/conf.d/default.conf", "/usr/share/nginx/html/index.html"]
       - exec: ["sed", "-i", "s#src=\"/nostr-provider.js\"#src=\"/nostr-provider.js?v=tab-signer-v4\"#g", "/etc/nginx/conf.d/default.conf", "/usr/share/nginx/html/index.html"]
+      # Compose the outer app-proxy prefix for NIP-98 signed URL verification.
+      - exec: ["sed", "-i", "s|proxy_set_header X-Forwarded-Prefix /api;|proxy_set_header X-Forwarded-Prefix $http_x_forwarded_prefix/api;|", "/etc/nginx/conf.d/default.conf"]
       - exec: ["nginx", "-s", "reload"]
 
   # TCP liveness on the nginx port, NOT an http GET of /. nginx binds 7777 at
diff --git a/neode-ui/public/nostr-provider.js b/neode-ui/public/nostr-provider.js
index fe2c9972..4e23f894 100644
--- a/neode-ui/public/nostr-provider.js
+++ b/neode-ui/public/nostr-provider.js
@@ -144,6 +144,7 @@
   // call. Keeping this as an optional companion API preserves NIP-07 compatibility
   // while allowing users to change their node identity when they log in again.
   function selectIdentity() {
+    autoAuthSuspended = false;
     if (identitySelection) {
       identitySelection.reject(new Error('A node identity choice is already open'));
       clearTimeout(identitySelection.timer);
@@ -164,21 +165,86 @@
     });
   }
 
+  // JWT claims are a reuse hint only; the API still verifies the signature.
+  // Never let an unrelated or expired app session override the chosen node key.
+  function tokenMatchesIdentity(token, pubkey) {
+    try {
+      if (typeof token !== 'string' || !pubkey) return false;
+      var parts = token.split('.');
+      if (parts.length !== 3 || !parts.every(function (part) { return /^[A-Za-z0-9_-]+$/.test(part); })) return false;
+      var encoded = parts[1].replace(/-/g, '+').replace(/_/g, '/');
+      while (encoded.length % 4) encoded += '=';
+      var claims = JSON.parse(atob(encoded));
+      return claims.sub === pubkey && typeof claims.exp === 'number' &&
+        Number.isFinite(claims.exp) && claims.exp > Date.now() / 1000;
+    } catch (_) { return false; }
+  }
+
+  var authGeneration = 0, authAttempt = null, autoAuthTimer = null, autoAuthSuspended = false;
+  function clearSession() {
+    authGeneration++;
+    authAttempt = null;
+    clearTimeout(autoAuthTimer);
+    autoAuthSuspended = true;
+    var previous = selectedIdentity && selectedIdentity.nostr_pubkey;
+    selectedIdentity = null; selectedPublicKey = null;
+    clearTimeout(selectedPublicKeyTimer);
+    window.dispatchEvent(new CustomEvent('archipelago:identity-changing', { detail: { nostr_pubkey: null, previous_nostr_pubkey: previous } }));
+    // These are app session credentials, not stored accounts, profiles or keys.
+    try {
+      ['nostr_token', 'nostr_pubkey', 'refresh_token'].forEach(function (key) { sessionStorage.removeItem(key); });
+    } catch (_) {}
+  }
+
+  function scheduleIdentityAuth(pubkey) {
+    if (!autoNip98 || autoAuthSuspended) return;
+    try { if (tokenMatchesIdentity(sessionStorage.getItem('nostr_token'), pubkey)) return; } catch (_) {}
+    clearTimeout(autoAuthTimer);
+    var generation = authGeneration;
+    autoAuthTimer = setTimeout(function () {
+      if (generation === authGeneration && selectedIdentity && selectedIdentity.nostr_pubkey === pubkey) doNip98Auth(pubkey, generation);
+    }, 1500);
+  }
+
   function finishIdentitySelection(identity) {
     // The identity picker is itself an explicit choice to disclose this key.
     // Keep it briefly so the login library's immediately-following
     // getPublicKey() does not depend on another cross-origin WebView round trip.
     // This is deliberately one-shot and short-lived.
-    if (identity && typeof identity.nostr_pubkey === 'string' && identity.nostr_pubkey) {
+    if (identity && typeof identity.nostr_pubkey === 'string' && /^[0-9a-f]{64}$/.test(identity.nostr_pubkey)) {
+      var previous = selectedIdentity && selectedIdentity.nostr_pubkey;
+      var changed = previous !== identity.nostr_pubkey;
+      var storedToken = null;
+      try { storedToken = sessionStorage.getItem('nostr_token'); } catch (_) {}
+      var invalidSession = !!storedToken && !tokenMatchesIdentity(storedToken, identity.nostr_pubkey);
       selectedIdentity = { nostr_pubkey: identity.nostr_pubkey };
+      var displayName = identity.display_name || identity.name;
+      if (typeof displayName === 'string' && displayName.trim()) selectedIdentity.display_name = displayName.trim().slice(0, 160);
+      if (changed || (invalidSession && !authAttempt)) {
+        authGeneration++;
+        authAttempt = null;
+        clearTimeout(autoAuthTimer);
+        window.dispatchEvent(new CustomEvent('archipelago:identity-changing', { detail: {
+          nostr_pubkey: identity.nostr_pubkey, previous_nostr_pubkey: previous,
+        } }));
+      }
+      try {
+        if (!tokenMatchesIdentity(sessionStorage.getItem('nostr_token'), identity.nostr_pubkey)) {
+          ['nostr_token', 'nostr_pubkey', 'refresh_token'].forEach(function (key) { sessionStorage.removeItem(key); });
+        } else {
+          if (sessionStorage.getItem('nostr_pubkey') !== identity.nostr_pubkey) sessionStorage.removeItem('refresh_token');
+          sessionStorage.setItem('nostr_pubkey', identity.nostr_pubkey);
+        }
+      } catch (_) {}
       selectedPublicKey = identity.nostr_pubkey;
       clearTimeout(selectedPublicKeyTimer);
       selectedPublicKeyTimer = setTimeout(function () {
         selectedPublicKey = null;
         selectedPublicKeyTimer = null;
       }, 15000);
+      scheduleIdentityAuth(identity.nostr_pubkey);
       identitySubscribers.slice().forEach(function (subscriber) {
-        try { subscriber(selectedIdentity); } catch (error) {
+        try { subscriber(getSelectedIdentity()); } catch (error) {
           console.error('[nostr-provider] identity listener failed:', error);
         }
       });
@@ -187,7 +253,8 @@
     var selection = identitySelection;
     identitySelection = null;
     clearTimeout(selection.timer);
-    selection.resolve(identity);
+    if (!identity || !/^[0-9a-f]{64}$/.test(identity.nostr_pubkey)) selection.reject(new Error('Invalid native public key'));
+    else selection.resolve(getSelectedIdentity());
   }
 
   function cancelIdentitySelection() {
@@ -216,7 +283,7 @@
     var restoringSession = false;
     try {
       var sessionHint = sessionStorage.getItem('nostr_token');
-      restoringSession = !!sessionHint && sessionHint.indexOf('mock-') !== 0;
+      restoringSession = !!selectedIdentity && tokenMatchesIdentity(sessionHint, selectedIdentity.nostr_pubkey);
     } catch (_) {}
     // This is only a UI hint: the broker still verifies the node session and
     // signing permissions. A restored app token never authorizes a signature.
@@ -237,7 +304,7 @@
     }
     identitySubscribers.push(subscriber);
     if (selectedIdentity) {
-      try { subscriber(selectedIdentity); } catch (error) {
+      try { subscriber(getSelectedIdentity()); } catch (error) {
         console.error('[nostr-provider] identity listener failed:', error);
       }
     }
@@ -249,12 +316,12 @@
   }
 
   function getSelectedIdentity() {
-    return selectedIdentity && { nostr_pubkey: selectedIdentity.nostr_pubkey };
+    return selectedIdentity && Object.assign({}, selectedIdentity);
   }
 
   window.addEventListener('message', function (e) {
     var validSource = embedded
-      ? e.source === window.parent
+      ? e.source === window.parent && e.origin === dashboardOrigin()
       : signerFrame && e.source === signerFrame.contentWindow && e.origin === dashboardOrigin();
     if (!validSource || !e.data) return;
 
@@ -275,7 +342,8 @@
       finishIdentitySelection(e.data.identity);
       window.postMessage({
         type: 'archipelago:identity',
-        nostr_pubkey: e.data.identity && e.data.identity.nostr_pubkey,
+        nostr_pubkey: selectedIdentity && selectedIdentity.nostr_pubkey,
+        display_name: selectedIdentity && selectedIdentity.display_name,
       }, window.location.origin);
       return;
     }
@@ -391,16 +459,21 @@
     selectIdentity: selectIdentity,
     onIdentitySelected: onIdentitySelected,
     getSelectedIdentity: getSelectedIdentity,
+    clearSession: clearSession,
   };
 
   // Optional direct NIP-98 session bootstrap for apps that use it. Signing
   // itself is shown by the shared broker, so this deliberately adds no second
   // full-screen loader inside the app.
-  var authDone = false;
-
-  function doNip98Auth(pubkey) {
-    if (authDone) return;
-    authDone = true;
+  function doNip98Auth(pubkey, generation) {
+    if (authAttempt || autoAuthSuspended) return;
+    var attempt = {};
+    authAttempt = attempt;
+    function current() {
+      return authAttempt === attempt && generation === authGeneration && !autoAuthSuspended &&
+        selectedIdentity && selectedIdentity.nostr_pubkey === pubkey;
+    }
+    function requireCurrent() { if (!current()) throw new Error('Identity choice changed'); }
     var healthUrl = window.location.origin + '/api/nostr-auth/health';
     var sessionUrl = window.location.origin + '/api/auth/nostr/session';
     var healthController = new AbortController();
@@ -408,6 +481,7 @@
 
     fetch(healthUrl, { signal: healthController.signal }).then(function (response) {
       clearTimeout(healthTimeout);
+      requireCurrent();
       if (!response.ok) throw new Error('Health ' + response.status);
       return window.nostr.signEvent({
         kind: 27235,
@@ -417,6 +491,8 @@
         tags: [['u', sessionUrl], ['method', 'POST']],
       });
     }).then(function (signed) {
+      requireCurrent();
+      if (!signed || signed.pubkey !== pubkey) throw new Error('Signer identity differs from selected identity');
       var controller = new AbortController();
       setTimeout(function () { controller.abort(); }, 10000);
       return fetch(sessionUrl, {
@@ -428,10 +504,12 @@
       if (!response.ok) throw new Error('Auth failed: ' + response.status);
       return response.json();
     }).then(function (data) {
-      if (!data.accessToken) throw new Error('Authentication returned no access token');
+      requireCurrent();
+      if (!tokenMatchesIdentity(data.accessToken, pubkey)) throw new Error('Authentication returned an expired or differently bound session');
       sessionStorage.setItem('nostr_token', data.accessToken);
       sessionStorage.setItem('nostr_pubkey', pubkey);
       if (data.refreshToken) sessionStorage.setItem('refresh_token', data.refreshToken);
+      else sessionStorage.removeItem('refresh_token');
       return waitForSignerToHide().then(function () {
         // Give WebView one paint after the iframe is hidden before replacing
         // the document. The stored session is already durable at this point.
@@ -441,6 +519,7 @@
           });
         });
       }).then(function () {
+        requireCurrent();
         if (window.ArchipelagoSurface &&
             typeof window.ArchipelagoSurface.expectPageTransition === 'function') {
           window.ArchipelagoSurface.expectPageTransition();
@@ -448,25 +527,13 @@
         window.location.reload();
       });
     }).catch(function (error) {
-      authDone = false;
+      if (authAttempt === attempt) authAttempt = null;
       var message = error && error.message ? error.message : String(error);
       if (message.toLowerCase().indexOf('abort') > -1) message = 'API timeout';
       console.warn('[nostr-provider] NIP-98 skipped:', message);
     });
   }
 
-  window.addEventListener('message', function (e) {
-    if (!e.data || e.data.type !== 'archipelago:identity' || !autoNip98) return;
-    if (e.source !== window && e.source !== window.parent) return;
-    var pubkey = e.data.nostr_pubkey;
-    if (!pubkey) return;
-    try {
-      var token = sessionStorage.getItem('nostr_token');
-      if (token && token.indexOf('mock-') === -1) return;
-    } catch (_) {}
-    setTimeout(function () { doNip98Auth(pubkey); }, 1500);
-  });
-
   // Only identity-aware apps open the chooser eagerly. The provider is also
   // injected into several ordinary app proxies; those stay untouched unless
   // they actually invoke a NIP-07 method, which lazily creates the broker.
diff --git a/neode-ui/src/components/MediaRegistrationConsent.vue b/neode-ui/src/components/MediaRegistrationConsent.vue
index 4f634c16..70e13b8e 100644
--- a/neode-ui/src/components/MediaRegistrationConsent.vue
+++ b/neode-ui/src/components/MediaRegistrationConsent.vue
@@ -41,6 +41,7 @@
 </template>
 <script setup lang="ts">
 import { computed, ref, watch } from 'vue'
+import { secureUuid } from '@/utils/secureUuid'
 import { fileBrowserClient, type FileBrowserItem } from '@/api/filebrowser-client'
 import { useModalKeyboard } from '@/composables/useModalKeyboard'
 import type { RegistrationRequest, CloudSelection } from '@/composables/useMediaRegistrationBridge'
@@ -48,7 +49,7 @@ const props = defineProps<{ request: RegistrationRequest | null; phase: 'select'
 const emit = defineEmits<{ approve: [selection: CloudSelection]; cancel: []; resolve: [] }>()
 const modal = ref<HTMLElement | null>(null), directory = ref('/'), files = ref<FileBrowserItem[]>([])
 const selected = ref<FileBrowserItem | null>(null), loading = ref(false), localError = ref('')
-const titleId = `media-registration-${crypto.randomUUID()}`
+const titleId = `media-registration-${secureUuid()}`
 let generation = 0
 const visible = computed(() => files.value.filter(item => item.isDir || /\.(mp4|m4v|webm|mov)$/i.test(item.name)))
 const duration = computed(() => { const seconds = props.request?.intent.viewingSeconds ?? 0; return seconds % 3600 === 0 ? `${seconds / 3600} hours` : `${Math.ceil(seconds / 60)} minutes` })
diff --git a/neode-ui/src/components/__tests__/MediaRegistrationConsentHttp.test.ts b/neode-ui/src/components/__tests__/MediaRegistrationConsentHttp.test.ts
new file mode 100644
index 00000000..d419c169
--- /dev/null
+++ b/neode-ui/src/components/__tests__/MediaRegistrationConsentHttp.test.ts
@@ -0,0 +1,19 @@
+import { mount, flushPromises } from '@vue/test-utils'
+import { afterEach, expect, it, vi } from 'vitest'
+import { webcrypto } from 'node:crypto'
+const files = vi.hoisted(() => ({ login: vi.fn(async () => true), listDirectory: vi.fn(async () => []) }))
+vi.mock('@/api/filebrowser-client', () => ({ fileBrowserClient: files }))
+import MediaRegistrationConsent from '../MediaRegistrationConsent.vue'
+afterEach(() => { vi.unstubAllGlobals(); vi.clearAllMocks() })
+it('mounts the inactive dashboard consent and opens its labelled dialog on LAN HTTP', async () => {
+  vi.stubGlobal('crypto', { getRandomValues: webcrypto.getRandomValues.bind(webcrypto) })
+  const wrapper = mount(MediaRegistrationConsent, { props: { request: null, phase: 'select', error: '' } })
+  expect(files.login).not.toHaveBeenCalled()
+  await wrapper.setProps({ request: { intent: { viewingSeconds: 3600, priceSats: 15 } } as any })
+  await flushPromises()
+  const dialog = wrapper.get('[role="dialog"]')
+  const label = dialog.attributes('aria-labelledby')
+  expect(label).toMatch(/^media-registration-[0-9a-f-]{36}$/)
+  expect(wrapper.get('#' + label).text()).toBeTruthy()
+  wrapper.unmount()
+})
diff --git a/neode-ui/src/composables/__tests__/useMediaRegistrationBridge.test.ts b/neode-ui/src/composables/__tests__/useMediaRegistrationBridge.test.ts
index 85ae15f3..5eeba061 100644
--- a/neode-ui/src/composables/__tests__/useMediaRegistrationBridge.test.ts
+++ b/neode-ui/src/composables/__tests__/useMediaRegistrationBridge.test.ts
@@ -1,6 +1,7 @@
 import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
 const rpc = vi.hoisted(() => ({ call: vi.fn() }))
 vi.mock('@/api/rpc-client', () => ({ rpcClient: rpc }))
+import { webcrypto } from 'node:crypto'
 import { installedOriginMatches, useMediaRegistrationBridge } from '../useMediaRegistrationBridge'
 
 const intent = { version: 1 as const, requestId: 'aaaaaaaa-aaaa-4aaa-8aaa-aaaaaaaaaaaa', nonce: 'a'.repeat(64),
@@ -27,6 +28,17 @@ beforeEach(() => {
 afterEach(() => { vi.restoreAllMocks(); vi.unstubAllGlobals() })
 
 describe('native Cloud registration ownership and interrupted operation boundary', () => {
+  it('persists and resumes the same secure approval on LAN HTTP without randomUUID', async () => {
+    vi.stubGlobal('crypto', { getRandomValues: webcrypto.getRandomValues.bind(webcrypto) })
+    const f = fixture(); await f.send('select'); f.bridge.approve(selection)
+    const approved = f.child.postMessage.mock.lastCall![0].result
+    expect(approved.approvalId).toMatch(/^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/)
+    f.bridge.dispose()
+    const resumed = fixture(); await resumed.send('resume')
+    expect(resumed.child.postMessage.mock.lastCall![0].result).toEqual(approved)
+    resumed.bridge.dispose()
+  })
+
   it('ignores other windows/origins and checks installer scope before showing Cloud selection', async () => {
     const f = fixture()
     await f.send('select', {}, 'https://evil.test'); await f.send('select', {}, undefined, {})
@@ -93,6 +105,7 @@ describe('native Cloud registration ownership and interrupted operation boundary
   })
   it('recovers resolution approval across reload and cannot use it to prepare a file', async () => {
     vi.mocked(Date.now).mockReturnValue(1700_000)
+    vi.stubGlobal('crypto', { getRandomValues: webcrypto.getRandomValues.bind(webcrypto) })
     const first = fixture(); await first.send('resolve')
     expect(first.bridge.phase.value).toBe('resolve')
     first.bridge.approveResolution()
diff --git a/neode-ui/src/composables/useCompanionAudio.ts b/neode-ui/src/composables/useCompanionAudio.ts
index 9f9c5bd4..bb76e765 100644
--- a/neode-ui/src/composables/useCompanionAudio.ts
+++ b/neode-ui/src/composables/useCompanionAudio.ts
@@ -1,18 +1,10 @@
 import { onBeforeUnmount, watch } from 'vue'
 import { useAudioPlayer } from './useAudioPlayer'
+import { secureUuid } from '@/utils/secureUuid'
 
 type AudioBridge = { postMessage: (message: string) => void; onmessage: ((event: { data: string }) => void) | null }
 type NativeWindow = Window & { ArchipelagoAudio?: AudioBridge }
 
-/** LAN HTTP WebViews expose getRandomValues, but not secure-context randomUUID. */
-function audioSessionId(): string {
-  const bytes = crypto.getRandomValues(new Uint8Array(16))
-  bytes[6] = (bytes[6]! & 0x0f) | 0x40
-  bytes[8] = (bytes[8]! & 0x3f) | 0x80
-  const hex = Array.from(bytes, byte => byte.toString(16).padStart(2, '0')).join('')
-  return `${hex.slice(0, 8)}-${hex.slice(8, 12)}-${hex.slice(12, 16)}-${hex.slice(16, 20)}-${hex.slice(20)}`
-}
-
 /** Send a small decoded thumbnail, never a protected URL or authorization data. */
 async function thumbnail(url: string, admittedOrigin: string, signal: AbortSignal): Promise<string> {
   if (!url) return ''
@@ -100,7 +92,7 @@ export function useCompanionAudio(player = useAudioPlayer()) {
     if (!player.currentSrc.value || !player.currentName.value) { release(); return }
     if (!session || source !== player.currentSrc.value) {
       if (!player.playing.value) { release(); return }
-      release(); session = audioSessionId(); source = player.currentSrc.value; sequence = 0
+      release(); session = secureUuid(); source = player.currentSrc.value; sequence = 0
       loadArtwork()
     }
     const duration = Number.isFinite(player.duration.value) ? Math.max(0, Math.min(player.duration.value, 604800)) : 0
diff --git a/neode-ui/src/composables/useMediaRegistrationBridge.ts b/neode-ui/src/composables/useMediaRegistrationBridge.ts
index 57ff64be..30ef847f 100644
--- a/neode-ui/src/composables/useMediaRegistrationBridge.ts
+++ b/neode-ui/src/composables/useMediaRegistrationBridge.ts
@@ -1,4 +1,5 @@
 import { ref, shallowRef } from 'vue'
+import { secureUuid } from '@/utils/secureUuid'
 import { rpcClient } from '@/api/rpc-client'
 import { appPortIsGateFronted } from '@/views/appSession/appSessionConfig'
 
@@ -102,7 +103,7 @@ export function useMediaRegistrationBridge(context: FrameContext) {
       const old = savedApproval(pending.intent)
       if (old && !exact(old.selection, selection)) throw new Error('This operation already approved another file. Resume its original selection.')
       const saved: SavedApproval = old ?? { version: 1, intent: pending.intent, selection: structuredClone(selection),
-        approvalId: crypto.randomUUID(), event: { kind: 27236, created_at: Math.floor(Date.now() / 1000),
+        approvalId: secureUuid(), event: { kind: 27236, created_at: Math.floor(Date.now() / 1000),
           tags: [['d', REGISTRATION_SCOPE]], content: JSON.stringify(approvalContent(pending.intent, selection), null, 2) } }
       // Persist owner approval before replying. Storage failure cannot silently
       // turn a later retry into a newly approved file or a replacement operation.
@@ -114,7 +115,7 @@ export function useMediaRegistrationBridge(context: FrameContext) {
   }
   function approveResolution() {
     if (!pending || pending.mode !== 'resolve' || phase.value !== 'resolve' || !current(pending)) return
-    const approved = { intent: pending.intent, approvalId: crypto.randomUUID(), event: {
+    const approved = { intent: pending.intent, approvalId: secureUuid(), event: {
       kind: 27237, created_at: Math.floor(Date.now() / 1000), tags: [['d', 'archipelago.media-registration.resolution.v1']],
       content: JSON.stringify({ action: 'Recover prepared video or retire this expired incomplete registration',
         scope: 'archipelago.media-registration.resolution.v1', intent: pending.intent }, null, 2),
diff --git a/neode-ui/src/utils/__tests__/secureUuid.test.ts b/neode-ui/src/utils/__tests__/secureUuid.test.ts
new file mode 100644
index 00000000..410594d0
--- /dev/null
+++ b/neode-ui/src/utils/__tests__/secureUuid.test.ts
@@ -0,0 +1,27 @@
+import { afterEach, describe, expect, it, vi } from 'vitest'
+import { webcrypto } from 'node:crypto'
+import { secureUuid } from '../secureUuid'
+
+afterEach(() => vi.unstubAllGlobals())
+describe('secure UUIDs across dashboard origins', () => {
+  it('uses the native secure-context API with its receiver', () => {
+    const source = { randomUUID() { expect(this).toBe(source); return 'aaaaaaaa-aaaa-4aaa-8aaa-aaaaaaaaaaaa' }, getRandomValues: vi.fn() }
+    vi.stubGlobal('crypto', source)
+    expect(secureUuid()).toBe('aaaaaaaa-aaaa-4aaa-8aaa-aaaaaaaaaaaa')
+    expect(source.getRandomValues).not.toHaveBeenCalled()
+  })
+  it('creates distinct UUIDs on LAN HTTP using only getRandomValues', () => {
+    vi.stubGlobal('crypto', { getRandomValues: webcrypto.getRandomValues.bind(webcrypto) })
+    const ids = Array.from({ length: 32 }, secureUuid)
+    expect(new Set(ids).size).toBe(ids.length)
+    for (const id of ids) expect(id).toMatch(/^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/)
+  })
+  it('sets the UUID version and variant without losing other random bits', () => {
+    vi.stubGlobal('crypto', { getRandomValues: (bytes: Uint8Array) => bytes.fill(255) })
+    expect(secureUuid()).toBe('ffffffff-ffff-4fff-bfff-ffffffffffff')
+  })
+  it.each([undefined, {}])('refuses when secure randomness is unavailable (%s)', source => {
+    vi.stubGlobal('crypto', source)
+    expect(() => secureUuid()).toThrow('Secure randomness is unavailable.')
+  })
+})
diff --git a/neode-ui/src/utils/secureUuid.ts b/neode-ui/src/utils/secureUuid.ts
new file mode 100644
index 00000000..f597925d
--- /dev/null
+++ b/neode-ui/src/utils/secureUuid.ts
@@ -0,0 +1,13 @@
+/** Secure UUIDs also work on LAN HTTP, where randomUUID is unavailable. */
+export function secureUuid(): string {
+  const source = globalThis.crypto
+  if (typeof source?.randomUUID === 'function') return source.randomUUID()
+  if (typeof source?.getRandomValues !== 'function') {
+    throw new Error('Secure randomness is unavailable.')
+  }
+  const bytes = source.getRandomValues(new Uint8Array(16))
+  bytes[6] = (bytes[6]! & 0x0f) | 0x40
+  bytes[8] = (bytes[8]! & 0x3f) | 0x80
+  const hex = Array.from(bytes, byte => byte.toString(16).padStart(2, '0')).join('')
+  return `${hex.slice(0, 8)}-${hex.slice(8, 12)}-${hex.slice(12, 16)}-${hex.slice(16, 20)}-${hex.slice(20)}`
+}
diff --git a/neode-ui/src/views/appSession/__tests__/nostrProviderIdentity.test.ts b/neode-ui/src/views/appSession/__tests__/nostrProviderIdentity.test.ts
index 81a239e1..813ecebf 100644
--- a/neode-ui/src/views/appSession/__tests__/nostrProviderIdentity.test.ts
+++ b/neode-ui/src/views/appSession/__tests__/nostrProviderIdentity.test.ts
@@ -14,6 +14,7 @@ type ProviderWindow = Window & {
   }
   nostr?: { getPublicKey: () => Promise<string> }
   archipelagoNostr?: {
+    clearSession: () => void
     selectIdentity: () => Promise<unknown>
     getSelectedIdentity: () => { nostr_pubkey: string } | null
     onIdentitySelected: (
@@ -57,6 +58,18 @@ describe('nostr-provider identity selection', () => {
     delete providerWindow.ArchipelagoSurface
   })
 
+  function token(pubkey: string, exp = Math.floor(Date.now() / 1000) + 3600) {
+    return `e30.${btoa(JSON.stringify({ sub: pubkey, exp })).replace(/=+$/, '')}.signature`
+  }
+
+  function choose(frame: HTMLIFrameElement, origin: string, pubkey: string, display_name?: string) {
+    const event = new MessageEvent('message', {
+      data: { type: 'archipelago:signer-identity', identity: { nostr_pubkey: pubkey, display_name } }, origin,
+    })
+    Object.defineProperty(event, 'source', { value: frame.contentWindow })
+    window.dispatchEvent(event)
+  }
+
   function loadProvider(userActivated: boolean) {
     Object.defineProperty(navigator, 'userActivation', {
       configurable: true,
@@ -89,14 +102,14 @@ describe('nostr-provider identity selection', () => {
     )
 
     const selected = new MessageEvent('message', {
-      data: { type: 'archipelago:signer-identity', identity: { nostr_pubkey: 'abc123' } },
+      data: { type: 'archipelago:signer-identity', identity: { nostr_pubkey: '6ca13d52ca70c883e0f0bb101e425a89e8624de51db2d2392593af6a84118090' } },
       origin: signerOrigin,
     })
     Object.defineProperty(selected, 'source', { value: frame.contentWindow })
     window.dispatchEvent(selected)
     await Promise.resolve()
 
-    await expect(publicKey).resolves.toBe('abc123')
+    await expect(publicKey).resolves.toBe('6ca13d52ca70c883e0f0bb101e425a89e8624de51db2d2392593af6a84118090')
     expect(postMessage).not.toHaveBeenCalledWith(
       expect.objectContaining({ type: 'nostr-request', method: 'getPublicKey' }),
       signerOrigin,
@@ -120,14 +133,14 @@ describe('nostr-provider identity selection', () => {
   it('keeps an eager picker choice for the app login that follows', async () => {
     const { frame, postMessage, signerOrigin } = loadProvider(false)
     const selected = new MessageEvent('message', {
-      data: { type: 'archipelago:signer-identity', identity: { nostr_pubkey: 'fast-choice' } },
+      data: { type: 'archipelago:signer-identity', identity: { nostr_pubkey: 'd930382168af7367013ad9723e7ebc093918f788abcb32ce93db245031edff0c' } },
       origin: signerOrigin,
     })
     Object.defineProperty(selected, 'source', { value: frame.contentWindow })
     window.dispatchEvent(selected)
     postMessage.mockClear()
 
-    await expect(providerWindow.nostr!.getPublicKey()).resolves.toBe('fast-choice')
+    await expect(providerWindow.nostr!.getPublicKey()).resolves.toBe('d930382168af7367013ad9723e7ebc093918f788abcb32ce93db245031edff0c')
     expect(postMessage).not.toHaveBeenCalledWith(
       expect.objectContaining({ type: 'nostr-request', method: 'getPublicKey' }),
       signerOrigin,
@@ -137,12 +150,12 @@ describe('nostr-provider identity selection', () => {
   it('does not reopen after a selected identity when activation survives account restoration', async () => {
     const { frame, postMessage, signerOrigin } = loadProvider(true)
     const selected = new MessageEvent('message', {
-      data: { type: 'archipelago:signer-identity', identity: { nostr_pubkey: 'selected-key' } },
+      data: { type: 'archipelago:signer-identity', identity: { nostr_pubkey: '4af900489429183b065f3cd1e46c59666642b54bed7c2a5a0c0566970992536e' } },
       origin: signerOrigin,
     })
     Object.defineProperty(selected, 'source', { value: frame.contentWindow })
     window.dispatchEvent(selected)
-    await expect(providerWindow.nostr!.getPublicKey()).resolves.toBe('selected-key')
+    await expect(providerWindow.nostr!.getPublicKey()).resolves.toBe('4af900489429183b065f3cd1e46c59666642b54bed7c2a5a0c0566970992536e')
     postMessage.mockClear()
     const next = providerWindow.nostr!.getPublicKey()
     expect(postMessage).not.toHaveBeenCalledWith(
@@ -150,11 +163,11 @@ describe('nostr-provider identity selection', () => {
     )
     const request = postMessage.mock.calls[0]![0] as { id: number }
     const response = new MessageEvent('message', {
-      data: { type: 'nostr-response', id: request.id, result: 'selected-key' }, origin: signerOrigin,
+      data: { type: 'nostr-response', id: request.id, result: '4af900489429183b065f3cd1e46c59666642b54bed7c2a5a0c0566970992536e' }, origin: signerOrigin,
     })
     Object.defineProperty(response, 'source', { value: frame.contentWindow })
     window.dispatchEvent(response)
-    await expect(next).resolves.toBe('selected-key')
+    await expect(next).resolves.toBe('4af900489429183b065f3cd1e46c59666642b54bed7c2a5a0c0566970992536e')
     // Explicit account switching remains available after a successful login.
     void providerWindow.archipelagoNostr!.selectIdentity()
     expect(postMessage).toHaveBeenCalledWith(
@@ -162,15 +175,12 @@ describe('nostr-provider identity selection', () => {
     )
   })
 
-  it('does not mistake reload activation for a new login while restoring a session', () => {
+  it('does not let an unbound token suppress an explicit login choice', () => {
     sessionStorage.setItem('nostr_token', 'test-session-hint')
     const { postMessage, signerOrigin } = loadProvider(true)
     void providerWindow.nostr!.getPublicKey()
     expect(postMessage).toHaveBeenCalledWith(
-      expect.objectContaining({ type: 'nostr-request', method: 'getPublicKey' }), signerOrigin,
-    )
-    expect(postMessage).not.toHaveBeenCalledWith(
-      expect.objectContaining({ type: 'archipelago:signer-select-identity' }), expect.anything(),
+      expect.objectContaining({ type: 'archipelago:signer-select-identity' }), signerOrigin,
     )
   })
 
@@ -219,18 +229,18 @@ describe('nostr-provider identity selection', () => {
       .find(message => message.type === 'nostr-request')!
     expect(request).toBeDefined()
     const response = new MessageEvent('message', {
-      data: { type: 'nostr-response', id: request.id, result: 'recreated-key' },
+      data: { type: 'nostr-response', id: request.id, result: 'f25efa08a1e6551d15d41622efedc40faceacc4f87ec766221613c14aa07cffb' },
       origin: signerOrigin,
     })
     Object.defineProperty(response, 'source', { value: replacement.contentWindow })
     window.dispatchEvent(response)
-    await expect(publicKey).resolves.toBe('recreated-key')
+    await expect(publicKey).resolves.toBe('f25efa08a1e6551d15d41622efedc40faceacc4f87ec766221613c14aa07cffb')
   })
 
   it('delivers an eager identity to an app listener that mounts afterward', () => {
     const { frame, signerOrigin } = loadProvider(false)
     const selected = new MessageEvent('message', {
-      data: { type: 'archipelago:signer-identity', identity: { nostr_pubkey: 'late-listener' } },
+      data: { type: 'archipelago:signer-identity', identity: { nostr_pubkey: 'c23f5e74ca130353248c66f8fdeff29bcd77515f19536c5f82c51da223f9b410' } },
       origin: signerOrigin,
     })
     Object.defineProperty(selected, 'source', { value: frame.contentWindow })
@@ -240,13 +250,13 @@ describe('nostr-provider identity selection', () => {
     const unsubscribe = providerWindow.archipelagoNostr!.onIdentitySelected(listener)
 
     expect(listener).toHaveBeenCalledOnce()
-    expect(listener).toHaveBeenCalledWith({ nostr_pubkey: 'late-listener' })
+    expect(listener).toHaveBeenCalledWith({ nostr_pubkey: 'c23f5e74ca130353248c66f8fdeff29bcd77515f19536c5f82c51da223f9b410' })
     expect(providerWindow.archipelagoNostr!.getSelectedIdentity())
-      .toEqual({ nostr_pubkey: 'late-listener' })
+      .toEqual({ nostr_pubkey: 'c23f5e74ca130353248c66f8fdeff29bcd77515f19536c5f82c51da223f9b410' })
 
     unsubscribe()
     const changed = new MessageEvent('message', {
-      data: { type: 'archipelago:signer-identity', identity: { nostr_pubkey: 'after-unsubscribe' } },
+      data: { type: 'archipelago:signer-identity', identity: { nostr_pubkey: '7dbe01f62123a375cdfd5c92c78408db35005175e99fed1aa05d74b91df13f36' } },
       origin: signerOrigin,
     })
     Object.defineProperty(changed, 'source', { value: frame.contentWindow })
@@ -258,13 +268,13 @@ describe('nostr-provider identity selection', () => {
     vi.useFakeTimers()
     const fetchMock = vi.fn().mockResolvedValue({ ok: true })
     vi.stubGlobal('fetch', fetchMock)
-    const { postMessage, signerOrigin } = loadProvider(false)
+    const { frame, postMessage, signerOrigin } = loadProvider(false)
 
     const identity = new MessageEvent('message', {
-      data: { type: 'archipelago:identity', nostr_pubkey: 'indeedhub-key' },
-      origin: window.location.origin,
+      data: { type: 'archipelago:signer-identity', identity: { nostr_pubkey: '0f431dd8b163f611777915a6479a81f48f1d3f2e2133e6916c91290c9b352047' } },
+      origin: signerOrigin,
     })
-    Object.defineProperty(identity, 'source', { value: window })
+    Object.defineProperty(identity, 'source', { value: frame.contentWindow })
     window.dispatchEvent(identity)
     await vi.advanceTimersByTimeAsync(1500)
 
@@ -276,7 +286,7 @@ describe('nostr-provider identity selection', () => {
       expect.objectContaining({
         type: 'nostr-request',
         method: 'signEvent',
-        params: { event: expect.objectContaining({ kind: 27235, pubkey: 'indeedhub-key' }) },
+        params: { event: expect.objectContaining({ kind: 27235, pubkey: '0f431dd8b163f611777915a6479a81f48f1d3f2e2133e6916c91290c9b352047' }) },
       }),
       signerOrigin,
     )
@@ -288,17 +298,17 @@ describe('nostr-provider identity selection', () => {
       .mockResolvedValueOnce({ ok: true })
       .mockResolvedValueOnce({
         ok: true,
-        json: () => Promise.resolve({ accessToken: 'real-token', refreshToken: 'refresh' }),
+        json: () => Promise.resolve({ accessToken: token('0f431dd8b163f611777915a6479a81f48f1d3f2e2133e6916c91290c9b352047'), refreshToken: 'refresh' }),
       })
     vi.stubGlobal('fetch', fetchMock)
     const raf = vi.spyOn(window, 'requestAnimationFrame').mockImplementation(() => 1)
     const { frame, postMessage, signerOrigin } = loadProvider(false)
 
     const identity = new MessageEvent('message', {
-      data: { type: 'archipelago:identity', nostr_pubkey: 'indeedhub-key' },
-      origin: window.location.origin,
+      data: { type: 'archipelago:signer-identity', identity: { nostr_pubkey: '0f431dd8b163f611777915a6479a81f48f1d3f2e2133e6916c91290c9b352047' } },
+      origin: signerOrigin,
     })
-    Object.defineProperty(identity, 'source', { value: window })
+    Object.defineProperty(identity, 'source', { value: frame.contentWindow })
     window.dispatchEvent(identity)
     await vi.advanceTimersByTimeAsync(1500)
 
@@ -313,14 +323,14 @@ describe('nostr-provider identity selection', () => {
     window.dispatchEvent(show)
 
     const signed = new MessageEvent('message', {
-      data: { type: 'nostr-response', id: signRequest.id, result: { id: 'signed-event' } },
+      data: { type: 'nostr-response', id: signRequest.id, result: { id: 'signed-event', pubkey: '0f431dd8b163f611777915a6479a81f48f1d3f2e2133e6916c91290c9b352047' } },
       origin: signerOrigin,
     })
     Object.defineProperty(signed, 'source', { value: frame.contentWindow })
     window.dispatchEvent(signed)
     await vi.advanceTimersByTimeAsync(0)
 
-    expect(sessionStorage.getItem('nostr_token')).toBe('real-token')
+    expect(sessionStorage.getItem('nostr_token')).toBe(token('0f431dd8b163f611777915a6479a81f48f1d3f2e2133e6916c91290c9b352047'))
     expect(raf).not.toHaveBeenCalled()
 
     const hide = new MessageEvent('message', {
@@ -363,4 +373,163 @@ describe('nostr-provider identity selection', () => {
     expect(postMessage.mock.calls.map(call => (call[0] as { type: string }).type))
       .toEqual(['archipelago:signer-init', 'nostr-request'])
   })
+  it.each(['expired', 'wrong-key', 'malformed'])('replaces a %s token without deleting stored accounts', async kind => {
+    const original = kind === 'expired' ? token('7be403e3cc82262248913b70f596a31b93f656e0da8ce5d1bf757c63ef7a8db4', 1) : kind === 'wrong-key' ? token('d9298a10d1b0735837dc4bd85dac641b0f3cef27a47e5d53a54f2f3f5b2fcffa') : 'invalid'
+    sessionStorage.setItem('nostr_token', original)
+    sessionStorage.setItem('refresh_token', 'old-refresh')
+    localStorage.setItem('saved-account-fixture', 'private-key-and-profile-fixture')
+    const fetchMock = vi.fn().mockResolvedValue({ ok: true })
+    vi.stubGlobal('fetch', fetchMock)
+    const { frame, signerOrigin, postMessage } = loadProvider(false)
+    choose(frame, signerOrigin, '7be403e3cc82262248913b70f596a31b93f656e0da8ce5d1bf757c63ef7a8db4')
+    expect(sessionStorage.getItem('nostr_token')).toBeNull()
+    expect(sessionStorage.getItem('refresh_token')).toBeNull()
+    expect(localStorage.getItem('saved-account-fixture')).toBe('private-key-and-profile-fixture')
+    await vi.advanceTimersByTimeAsync(1500)
+    expect(fetchMock).toHaveBeenCalledOnce()
+    expect(postMessage).toHaveBeenCalledWith(expect.objectContaining({ method: 'signEvent' }), signerOrigin)
+    localStorage.removeItem('saved-account-fixture')
+  })
+
+  it('reuses only an unexpired token matching the verified selected identity', async () => {
+    const saved = token('7be403e3cc82262248913b70f596a31b93f656e0da8ce5d1bf757c63ef7a8db4')
+    sessionStorage.setItem('nostr_token', saved)
+    sessionStorage.setItem('nostr_pubkey', 'stale-key')
+    sessionStorage.setItem('refresh_token', 'stale-refresh')
+    const fetchMock = vi.fn()
+    vi.stubGlobal('fetch', fetchMock)
+    const { frame, signerOrigin } = loadProvider(false)
+    choose(frame, signerOrigin, '7be403e3cc82262248913b70f596a31b93f656e0da8ce5d1bf757c63ef7a8db4', 'My native profile')
+    await vi.advanceTimersByTimeAsync(1600)
+    expect(fetchMock).not.toHaveBeenCalled()
+    expect(sessionStorage.getItem('nostr_token')).toBe(saved)
+    expect(sessionStorage.getItem('nostr_pubkey')).toBe('7be403e3cc82262248913b70f596a31b93f656e0da8ce5d1bf757c63ef7a8db4')
+    expect(sessionStorage.getItem('refresh_token')).toBeNull()
+    expect(providerWindow.archipelagoNostr!.getSelectedIdentity()).toEqual({ nostr_pubkey: '7be403e3cc82262248913b70f596a31b93f656e0da8ce5d1bf757c63ef7a8db4', display_name: 'My native profile' })
+  })
+
+  it('ignores self-forged identity messages and signer messages from another origin', async () => {
+    const fetchMock = vi.fn()
+    vi.stubGlobal('fetch', fetchMock)
+    const { frame } = loadProvider(false)
+    choose(frame, 'https://untrusted.example', 'ccdd35168ab474fa5764a526cfb83621351e23682c5075b2e18d56bddf96aa30')
+    const event = new MessageEvent('message', { data: { type: 'archipelago:identity', nostr_pubkey: 'ccdd35168ab474fa5764a526cfb83621351e23682c5075b2e18d56bddf96aa30' }, origin: location.origin })
+    Object.defineProperty(event, 'source', { value: window })
+    window.dispatchEvent(event)
+    await vi.advanceTimersByTimeAsync(1600)
+    expect(providerWindow.archipelagoNostr!.getSelectedIdentity()).toBeNull()
+    expect(fetchMock).not.toHaveBeenCalled()
+  })
+
+  it.each(['switch', 'logout'])('does not store an in-flight old session after %s', async action => {
+    let complete!: (response: unknown) => void
+    const fetchMock = vi.fn().mockResolvedValueOnce({ ok: true }).mockImplementationOnce(() => new Promise(resolve => { complete = resolve }))
+    vi.stubGlobal('fetch', fetchMock)
+    const { frame, signerOrigin, postMessage } = loadProvider(false)
+    choose(frame, signerOrigin, 'cba06b5736faf67e54b07b561eae94395e774c517a7d910a54369e1263ccfbd4')
+    await vi.advanceTimersByTimeAsync(1500)
+    const request = postMessage.mock.calls.map(c => c[0]).find(v => v.method === 'signEvent')
+    const signed = new MessageEvent('message', { data: { type: 'nostr-response', id: request.id, result: { pubkey: 'cba06b5736faf67e54b07b561eae94395e774c517a7d910a54369e1263ccfbd4' } }, origin: signerOrigin })
+    Object.defineProperty(signed, 'source', { value: frame.contentWindow })
+    window.dispatchEvent(signed)
+    await vi.advanceTimersByTimeAsync(0)
+    if (action === 'switch') choose(frame, signerOrigin, '11507a0e2f5e69d5dfa40a62a1bd7b6ee57e6bcd85c67c9b8431b36fff21c437')
+    else providerWindow.archipelagoNostr!.clearSession()
+    complete({ ok: true, json: async () => ({ accessToken: token('cba06b5736faf67e54b07b561eae94395e774c517a7d910a54369e1263ccfbd4'), refreshToken: 'old-refresh' }) })
+    await vi.advanceTimersByTimeAsync(0)
+    expect(sessionStorage.getItem('nostr_token')).toBeNull()
+    expect(sessionStorage.getItem('refresh_token')).toBeNull()
+  })
+
+  it('announces a verified switch before clearing the old session and exposes only public metadata', () => {
+    const oldKey = 'a'.repeat(64), nextKey = 'b'.repeat(64)
+    sessionStorage.setItem('nostr_token', token(oldKey))
+    const { frame, signerOrigin } = loadProvider(false)
+    const changes: unknown[] = []
+    window.addEventListener('archipelago:identity-changing', event => {
+      changes.push({ detail: (event as CustomEvent).detail, token: sessionStorage.getItem('nostr_token'), selected: providerWindow.archipelagoNostr!.getSelectedIdentity() })
+    })
+    choose(frame, signerOrigin, nextKey, 'Chosen profile')
+    expect(changes).toEqual([{ detail: { nostr_pubkey: nextKey, previous_nostr_pubkey: null }, token: token(oldKey), selected: { nostr_pubkey: nextKey, display_name: 'Chosen profile' } }])
+    expect(sessionStorage.getItem('nostr_token')).toBeNull()
+  })
+
+  it('rejects a malformed native identity without exposing it or starting authentication', async () => {
+    const fetchMock = vi.fn()
+    vi.stubGlobal('fetch', fetchMock)
+    const { frame, signerOrigin } = loadProvider(false)
+    choose(frame, signerOrigin, 'not-a-native-public-key')
+    await vi.advanceTimersByTimeAsync(1600)
+    expect(providerWindow.archipelagoNostr!.getSelectedIdentity()).toBeNull()
+    expect(fetchMock).not.toHaveBeenCalled()
+  })
+
+  it('clears a now-expired token on repeated selection of the same identity', () => {
+    const key = 'a'.repeat(64)
+    const { frame, signerOrigin } = loadProvider(false)
+    choose(frame, signerOrigin, key)
+    sessionStorage.setItem('nostr_token', token(key, 1))
+    const notify = vi.fn()
+    window.addEventListener('archipelago:identity-changing', notify)
+    choose(frame, signerOrigin, key)
+    expect(notify).toHaveBeenCalledOnce()
+    expect(sessionStorage.getItem('nostr_token')).toBeNull()
+  })
+
+  it('keeps logout quiet and permits a subsequent explicit identity choice', async () => {
+    const key = 'a'.repeat(64)
+    const fetchMock = vi.fn().mockResolvedValue({ ok: true })
+    vi.stubGlobal('fetch', fetchMock)
+    const { frame, signerOrigin, postMessage } = loadProvider(false)
+    choose(frame, signerOrigin, key)
+    providerWindow.archipelagoNostr!.clearSession()
+    await vi.advanceTimersByTimeAsync(1600)
+    expect(fetchMock).not.toHaveBeenCalled()
+    expect(providerWindow.archipelagoNostr!.getSelectedIdentity()).toBeNull()
+    const selection = providerWindow.archipelagoNostr!.selectIdentity()
+    expect(postMessage).toHaveBeenCalledWith(expect.objectContaining({ type: 'archipelago:signer-select-identity', force: true }), signerOrigin)
+    choose(frame, signerOrigin, key)
+    await expect(selection).resolves.toEqual({ nostr_pubkey: key })
+    await vi.advanceTimersByTimeAsync(1500)
+    expect(fetchMock).toHaveBeenCalledOnce()
+  })
+
+  it('rejects a session response bound to another key after valid signing', async () => {
+    const key = 'a'.repeat(64)
+    const fetchMock = vi.fn().mockResolvedValueOnce({ ok: true }).mockResolvedValueOnce({ ok: true, json: async () => ({ accessToken: token('b'.repeat(64)) }) })
+    vi.stubGlobal('fetch', fetchMock)
+    const { frame, signerOrigin, postMessage } = loadProvider(false)
+    choose(frame, signerOrigin, key)
+    await vi.advanceTimersByTimeAsync(1500)
+    const request = postMessage.mock.calls.map(c => c[0]).find(v => v.method === 'signEvent')
+    const signed = new MessageEvent('message', { data: { type: 'nostr-response', id: request.id, result: { pubkey: key } }, origin: signerOrigin })
+    Object.defineProperty(signed, 'source', { value: frame.contentWindow })
+    window.dispatchEvent(signed)
+    await vi.advanceTimersByTimeAsync(0)
+    expect(sessionStorage.getItem('nostr_token')).toBeNull()
+  })
+
+  it('does not reset an in-flight auth when the same identity is announced again', async () => {
+    const key = 'a'.repeat(64)
+    let complete!: (response: unknown) => void
+    const fetchMock = vi.fn().mockResolvedValueOnce({ ok: true }).mockImplementationOnce(() => new Promise(resolve => { complete = resolve }))
+    vi.stubGlobal('fetch', fetchMock)
+    vi.spyOn(window, 'requestAnimationFrame').mockImplementation(() => 1)
+    const { frame, signerOrigin, postMessage } = loadProvider(false)
+    choose(frame, signerOrigin, key)
+    await vi.advanceTimersByTimeAsync(1500)
+    const request = postMessage.mock.calls.map(c => c[0]).find(v => v.method === 'signEvent')
+    const signed = new MessageEvent('message', { data: { type: 'nostr-response', id: request.id, result: { pubkey: key } }, origin: signerOrigin })
+    Object.defineProperty(signed, 'source', { value: frame.contentWindow })
+    window.dispatchEvent(signed)
+    await vi.advanceTimersByTimeAsync(0)
+    const notify = vi.fn()
+    window.addEventListener('archipelago:identity-changing', notify)
+    choose(frame, signerOrigin, key)
+    expect(notify).not.toHaveBeenCalled()
+    complete({ ok: true, json: async () => ({ accessToken: token(key) }) })
+    await vi.advanceTimersByTimeAsync(0)
+    expect(sessionStorage.getItem('nostr_token')).toBe(token(key))
+  })
+
 })
diff --git a/scripts/tests/test_indeehub_prefix_hook.py b/scripts/tests/test_indeehub_prefix_hook.py
new file mode 100644
index 00000000..501bda94
--- /dev/null
+++ b/scripts/tests/test_indeehub_prefix_hook.py
@@ -0,0 +1,43 @@
+"""Offline behavior checks for the native post-install proxy prefix hook."""
+import pathlib
+import subprocess
+import tempfile
+import unittest
+import yaml
+
+ROOT = pathlib.Path(__file__).resolve().parents[2]
+
+
+def prefix_hook():
+    hooks = yaml.safe_load((ROOT / "apps/indeedhub/manifest.yml").read_text())["app"]["hooks"]["post_install"]
+    matches = [index for index, hook in enumerate(hooks) if "X-Forwarded-Prefix" in " ".join(hook.get("exec", []))]
+    assert len(matches) == 1
+    index = matches[0]
+    assert hooks[index + 1] == {"exec": ["nginx", "-s", "reload"]}
+    return hooks[index]["exec"]
+
+
+class IndeeHubPrefixHook(unittest.TestCase):
+    def test_composes_prefix_before_reload_and_is_idempotent(self):
+        original = "server {\n    proxy_set_header Host $http_host;\n    proxy_set_header X-Forwarded-Prefix /api;\n}\n"
+        expected = original.replace("X-Forwarded-Prefix /api;", "X-Forwarded-Prefix $http_x_forwarded_prefix/api;")
+        with tempfile.TemporaryDirectory() as directory:
+            config = pathlib.Path(directory) / "default.conf"
+            config.write_text(original)
+            args = prefix_hook()
+            self.assertEqual(args[-1], "/etc/nginx/conf.d/default.conf")
+            for _ in range(2):
+                subprocess.run([*args[:-1], str(config)], check=True)
+                self.assertEqual(config.read_text(), expected)
+
+    def test_existing_composed_prefix_is_preserved(self):
+        original = "proxy_set_header X-Forwarded-Prefix $http_x_forwarded_prefix/api;\n"
+        with tempfile.TemporaryDirectory() as directory:
+            config = pathlib.Path(directory) / "default.conf"
+            config.write_text(original)
+            subprocess.run([*prefix_hook()[:-1], str(config)], check=True)
+            self.assertEqual(config.read_text(), original)
+
+
+if __name__ == "__main__":
+    unittest.main()