diff --git a/apps/web/src/lib/format.ts b/apps/web/src/lib/format.ts
index 8bd1912..f0569ff 100644
--- a/apps/web/src/lib/format.ts
+++ b/apps/web/src/lib/format.ts
@@ -1,3 +1,4 @@
+// Copyright (c) 2026 Sub Rosa contributors
 export function shortAddr(g: string, n = 6): string {
   if (g.length <= n * 2 + 3) return g;
   return `${g.slice(0, n)}…${g.slice(-n)}`;
diff --git a/apps/web/src/lib/hex.ts b/apps/web/src/lib/hex.ts
index 0bed602..e693e92 100644
--- a/apps/web/src/lib/hex.ts
+++ b/apps/web/src/lib/hex.ts
@@ -1,3 +1,4 @@
+// Copyright (c) 2026 Sub Rosa contributors
 export function hexToBytes(hex: string): Uint8Array {
   const clean = hex.trim().replace(/^0x/i, "");
   if (clean.length % 2 !== 0 || !/^[0-9a-fA-F]*$/.test(clean)) {
diff --git a/apps/web/src/lib/round-phase.ts b/apps/web/src/lib/round-phase.ts
index 4a79c49..6f376bf 100644
--- a/apps/web/src/lib/round-phase.ts
+++ b/apps/web/src/lib/round-phase.ts
@@ -1,3 +1,4 @@
+// Copyright (c) 2026 Sub Rosa contributors
 import type { RoundStatus } from "../dashboard/types";
 
 export type RoundPhase = "Open" | "Reveal" | "Settled";
diff --git a/apps/web/src/lib/round-status.ts b/apps/web/src/lib/round-status.ts
index bf0fdb2..3b6c5bb 100644
--- a/apps/web/src/lib/round-status.ts
+++ b/apps/web/src/lib/round-status.ts
@@ -1,3 +1,4 @@
+// Copyright (c) 2026 Sub Rosa contributors
 export type BadgeState = "loading" | "empty" | "error" | "stale" | "found";
 
 export interface RoundStatusInfo {