diff --git a/desktop/src/features/agents/ui/VerifyReceiptDialog.tsx b/desktop/src/features/agents/ui/VerifyReceiptDialog.tsx
index e14893975ee..e2282188506 100644
--- a/desktop/src/features/agents/ui/VerifyReceiptDialog.tsx
+++ b/desktop/src/features/agents/ui/VerifyReceiptDialog.tsx
@@ -3,6 +3,7 @@ import { ShieldCheck, ShieldX } from "lucide-react";
 
 import { verifyWorkReceipt } from "@/shared/api/tauriTrustLedger";
 import type { ReceiptVerification } from "@/shared/api/types";
+import { truncateNpub } from "@/shared/lib/pubkey";
 import { Badge } from "@/shared/ui/badge";
 import { Button } from "@/shared/ui/button";
 import {
@@ -19,12 +20,6 @@ const LEVEL_LABEL: Record<string, string> = {
   autonomous: "Autonomous",
 };
 
-function shortKey(pubkey: string): string {
-  return pubkey.length > 16
-    ? `${pubkey.slice(0, 8)}…${pubkey.slice(-6)}`
-    : pubkey;
-}
-
 function formatIssued(unixSeconds: number): string {
   return new Date(unixSeconds * 1_000).toLocaleString(undefined, {
     month: "short",
@@ -125,11 +120,11 @@ export function VerifyReceiptDialog({
                 <dl className="mt-3 grid grid-cols-[auto_1fr] gap-x-4 gap-y-1 text-sm">
                   <dt className="text-muted-foreground">Issuer</dt>
                   <dd className="font-mono text-xs">
-                    {shortKey(result.issuerPubkey ?? "")}
+                    {truncateNpub(result.issuerPubkey ?? "")}
                   </dd>
                   <dt className="text-muted-foreground">Agent</dt>
                   <dd className="font-mono text-xs">
-                    {shortKey(result.summary.agentPubkey)}
+                    {truncateNpub(result.summary.agentPubkey)}
                   </dd>
                   <dt className="text-muted-foreground">Issued</dt>
                   <dd>{formatIssued(result.issuedAt ?? 0)}</dd>
diff --git a/desktop/src/features/time-machine/ui/TimeMachineScreen.tsx b/desktop/src/features/time-machine/ui/TimeMachineScreen.tsx
index dae1598cbfa..a6457b7024f 100644
--- a/desktop/src/features/time-machine/ui/TimeMachineScreen.tsx
+++ b/desktop/src/features/time-machine/ui/TimeMachineScreen.tsx
@@ -13,7 +13,7 @@ import {
 import { getOrgTimeline } from "@/shared/api/tauriTimeMachine";
 import type { TimelineEvent } from "@/shared/api/types";
 import { cn } from "@/shared/lib/cn";
-import { normalizePubkey } from "@/shared/lib/pubkey";
+import { normalizePubkey, truncateNpub } from "@/shared/lib/pubkey";
 import { Badge } from "@/shared/ui/badge";
 import { Button } from "@/shared/ui/button";
 import { UserAvatar } from "@/shared/ui/UserAvatar";
@@ -32,10 +32,6 @@ const FEED_ROWS = 40;
 
 type Named = { name: string; avatarUrl: string | null };
 
-function shortKey(pubkey: string): string {
-  return `${pubkey.slice(0, 6)}…${pubkey.slice(-4)}`;
-}
-
 function formatInstant(unixSeconds: number): string {
   return new Date(unixSeconds * 1_000).toLocaleString(undefined, {
     weekday: "short",
@@ -133,7 +129,7 @@ export function TimeMachineScreen(): React.ReactElement {
   }, [channels]);
   const nameOf = (pubkey: string): Named =>
     agentNames.get(normalizePubkey(pubkey)) ?? {
-      name: shortKey(pubkey),
+      name: truncateNpub(pubkey),
       avatarUrl: null,
     };
   const channelOf = (channelId: string | null): string | null =>