diff --git a/apps/web/src/lib/chain.ts b/apps/web/src/lib/chain.ts
index 39c1954..c9dc2e7 100644
--- a/apps/web/src/lib/chain.ts
+++ b/apps/web/src/lib/chain.ts
@@ -1,3 +1,4 @@
+// Copyright (c) 2026 Sub Rosa contributors
 import { Buffer } from "buffer";
 import {
   getAddress,
diff --git a/apps/web/src/lib/config.ts b/apps/web/src/lib/config.ts
index 0d0fd83..e1e23f5 100644
--- a/apps/web/src/lib/config.ts
+++ b/apps/web/src/lib/config.ts
@@ -1,3 +1,4 @@
+// Copyright (c) 2026 Sub Rosa contributors
 export interface ConfigIssue {
   key: string;
   message: string;
diff --git a/apps/web/src/lib/demoActions.ts b/apps/web/src/lib/demoActions.ts
index 6032e48..651a0a2 100644
--- a/apps/web/src/lib/demoActions.ts
+++ b/apps/web/src/lib/demoActions.ts
@@ -1,3 +1,4 @@
+// Copyright (c) 2026 Sub Rosa contributors
 import { Buffer } from "buffer";
 import { Keypair } from "@stellar/stellar-sdk";
 import {
diff --git a/apps/web/src/lib/demoTypes.ts b/apps/web/src/lib/demoTypes.ts
index c942c1f..bbd0ce6 100644
--- a/apps/web/src/lib/demoTypes.ts
+++ b/apps/web/src/lib/demoTypes.ts
@@ -1,3 +1,4 @@
+// Copyright (c) 2026 Sub Rosa contributors
 export interface AttackStep {
   label: string;
   ok: boolean;