diff --git a/apps/mobile/src/player/controller.ts b/apps/mobile/src/player/controller.ts
index 33beb44..510beb8 100644
--- a/apps/mobile/src/player/controller.ts
+++ b/apps/mobile/src/player/controller.ts
@@ -20,6 +20,7 @@ import { playerCache, qualityPrefs, type Quality } from '../lib/prefs';
 import { downloads } from '../offline/downloads';
 import { PersistentEvents } from '../offline/events';
 import { offlineWave } from './offlineWave';
+import { eventId } from './eventId';
 
 export { offlineWave };
 
@@ -113,7 +114,7 @@ class Controller {
     this.server = server;
     this.persistent = session && userId ? new PersistentEvents(session, server, userId) : null;
     const sink = this.persistent;
-    this.events = sink ? new EventBuffer({ send: sink.send }) : null;
+    this.events = sink ? new EventBuffer({ send: sink.send }, Date.now, undefined, eventId) : null;
     void sink?.drain();
     this.unsubscribeNet ??= NetInfo.addEventListener((st) => {
       if (st.isConnected) void this.persistent?.drain();
diff --git a/apps/mobile/src/player/eventId.ts b/apps/mobile/src/player/eventId.ts
new file mode 100644
index 0000000..5cbfb65
--- /dev/null
+++ b/apps/mobile/src/player/eventId.ts
@@ -0,0 +1,9 @@
+import { uuidv7 } from '@pipu/core';
+
+/** Hermes has no Web Crypto. Expo's installed native runtime supplies secure UUID randomness. */
+export function eventId(now: number): string {
+  return uuidv7(now, () => {
+    const hex = globalThis.expo.uuidv4().replace(/-/g, '');
+    return Uint8Array.from(hex.match(/../g)!, (byte) => parseInt(byte, 16));
+  });
+}
diff --git a/apps/mobile/test/eventId.test.ts b/apps/mobile/test/eventId.test.ts
new file mode 100644
index 0000000..71245e2
--- /dev/null
+++ b/apps/mobile/test/eventId.test.ts
@@ -0,0 +1,19 @@
+import { afterEach, expect, it, vi } from 'vitest';
+import { EventBuffer } from '@pipu/core';
+import { eventId } from '../src/player/eventId';
+
+afterEach(() => vi.unstubAllGlobals());
+
+it('queues restored-track events on Hermes without Web Crypto', () => {
+  vi.stubGlobal('crypto', undefined);
+  const nativeUuid = vi.fn()
+    .mockReturnValueOnce('00000000-0000-4fff-bfff-ffffffffffff')
+    .mockReturnValueOnce('00000000-0000-4fff-bfff-fffffffffffe');
+  vi.stubGlobal('expo', { uuidv4: nativeUuid });
+  const buffer = new EventBuffer({ send: vi.fn() }, () => 0x0190_0000_0000, undefined, eventId);
+  buffer.push({ type: 'play_start', track_id: 'restored-track' });
+  buffer.push({ type: 'skip', track_id: 'restored-track' });
+  expect(buffer.pending[0]?.id).toBe('01900000-0000-7fff-bfff-ffffffffffff');
+  expect(buffer.pending[1]?.id).not.toBe(buffer.pending[0]?.id);
+  expect(nativeUuid).toHaveBeenCalledTimes(2);
+});
diff --git a/docs/mobile.md b/docs/mobile.md
index 34e75f2..be4fe67 100644
--- a/docs/mobile.md
+++ b/docs/mobile.md
@@ -29,6 +29,10 @@
 - Доступ к экранам ограничен через `Stack.Protected` до их отрисовки. Перенаправление из `useEffect`
   выполнялось слишком поздно: первый запуск без сервера открывал главную и падал с `Error: no session`.
   Регрессия первого запуска, повторного открытия и защищённой ссылки: `.maestro/startup.yaml`.
+- События прослушивания используют UUIDv7 со случайными байтами из нативного `expo.uuidv4()`.
+  Web Crypto (`crypto.getRandomValues`) в Hermes отсутствует: браузерный генератор ронял приложение
+  при восстановлении непустой очереди с компьютера, когда TrackPlayer сообщал о выбранном треке.
+  Генератор передаётся в общий `EventBuffer`; веб продолжает использовать Web Crypto.
 
 ## Экраны
 
diff --git a/packages/core/src/player.ts b/packages/core/src/player.ts
index c341556..a8ae6b0 100644
--- a/packages/core/src/player.ts
+++ b/packages/core/src/player.ts
@@ -188,6 +188,7 @@ export class EventBuffer {
     private readonly sink: EventSink,
     private readonly now: () => number = Date.now,
     private readonly maxRetryMs = 5 * 60_000,
+    private readonly createId: (now: number) => string = uuidv7,
   ) {}
 
   get pending(): readonly PlayEvent[] {
@@ -196,7 +197,7 @@ export class EventBuffer {
 
   push(e: Omit<PlayEvent, 'id' | 'occurred_at'> & Partial<Pick<PlayEvent, 'id' | 'occurred_at'>>) {
     const t = this.now();
-    this.queue.push({ id: e.id ?? uuidv7(t), occurred_at: e.occurred_at ?? new Date(t).toISOString(), ...e } as PlayEvent);
+    this.queue.push({ id: e.id ?? this.createId(t), occurred_at: e.occurred_at ?? new Date(t).toISOString(), ...e } as PlayEvent);
     if (this.queue.length >= 500) void this.flush();
   }