diff --git a/backend/prisma/seed.ts b/backend/prisma/seed.ts
index 6bc1da83..d7ebc71c 100644
--- a/backend/prisma/seed.ts
+++ b/backend/prisma/seed.ts
@@ -7,23 +7,29 @@ const pool = new pg.Pool({ connectionString });
 const adapter = new PrismaPg(pool);
 const prisma = new PrismaClient({ adapter });
 
+// Use stable, checksum-valid Stellar testnet/demo addresses so seeded rows
+// render correctly in the frontend and resolve against TOKEN_ADDRESSES.
+const DEMO_SENDER_PUBLIC_KEY = 'GCM5WPR4DDR24FSAX5LIEM4J7AI3KOWJYANSXEPKYXCSZOTAYXE75AFN';
+const DEMO_RECIPIENT_PUBLIC_KEY = 'GBJCHUKZMTFSLOMNC7P4TS4VJJBTCYL3XKSOLXAUJSD56C4LHND5TWUC';
+const DEMO_TOKEN_ADDRESS = 'CBIELTK6YBZJU5UP2WWQEUCYKLPU6AUNZ2BQ4WWFEIE3USCIHMXQDAMA';
+
 async function main() {
     console.log('Seeding database...');
 
     // Create example users
     const user1 = await prisma.user.upsert({
-        where: { publicKey: 'GBRPYH6QC6WGLH473XI3CL4B3I754SFSULN5K3X7G3X4I6SGRH3V3U12' },
+        where: { publicKey: DEMO_SENDER_PUBLIC_KEY },
         update: {},
         create: {
-            publicKey: 'GBRPYH6QC6WGLH473XI3CL4B3I754SFSULN5K3X7G3X4I6SGRH3V3U12',
+            publicKey: DEMO_SENDER_PUBLIC_KEY,
         },
     });
 
     const user2 = await prisma.user.upsert({
-        where: { publicKey: 'GDRS6N3K7DQ6GKH47O6E5K5G7B7H7I7J7K7L7M7N7O7P7Q7R7S7T7U7V' },
+        where: { publicKey: DEMO_RECIPIENT_PUBLIC_KEY },
         update: {},
         create: {
-            publicKey: 'GDRS6N3K7DQ6GKH47O6E5K5G7B7H7I7J7K7L7M7N7O7P7Q7R7S7T7U7V',
+            publicKey: DEMO_RECIPIENT_PUBLIC_KEY,
         },
     });
 
@@ -37,7 +43,7 @@ async function main() {
             streamId: 101,
             sender: user1.publicKey,
             recipient: user2.publicKey,
-            tokenAddress: 'CBTM5D262F6VQY4A6E4F6G7H8I9J0K1L2M3N4O5P6Q7R8S9T0U1V2W3X',
+            tokenAddress: DEMO_TOKEN_ADDRESS,
             ratePerSecond: '100000000', // 10 XLM/sec if decimals=7
             depositedAmount: '1000000000000',
             withdrawnAmount: '0',
diff --git a/package-lock.json b/package-lock.json
index cf40b275..8ee3cf03 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1848,6 +1848,9 @@
         "arm"
       ],
       "dev": true,
+      "libc": [
+        "glibc"
+      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1862,6 +1865,9 @@
         "arm"
       ],
       "dev": true,
+      "libc": [
+        "musl"
+      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1876,6 +1882,9 @@
         "arm64"
       ],
       "dev": true,
+      "libc": [
+        "glibc"
+      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1890,6 +1899,9 @@
         "arm64"
       ],
       "dev": true,
+      "libc": [
+        "musl"
+      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1904,6 +1916,9 @@
         "loong64"
       ],
       "dev": true,
+      "libc": [
+        "glibc"
+      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1918,6 +1933,9 @@
         "loong64"
       ],
       "dev": true,
+      "libc": [
+        "musl"
+      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1932,6 +1950,9 @@
         "ppc64"
       ],
       "dev": true,
+      "libc": [
+        "glibc"
+      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1946,6 +1967,9 @@
         "ppc64"
       ],
       "dev": true,
+      "libc": [
+        "musl"
+      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1960,6 +1984,9 @@
         "riscv64"
       ],
       "dev": true,
+      "libc": [
+        "glibc"
+      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1974,6 +2001,9 @@
         "riscv64"
       ],
       "dev": true,
+      "libc": [
+        "musl"
+      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -1988,6 +2018,26 @@
         "s390x"
       ],
       "dev": true,
+      "libc": [
+        "glibc"
+      ],
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "linux"
+      ]
+    },
+    "node_modules/@rollup/rollup-linux-x64-gnu": {
+      "version": "4.60.2",
+      "resolved": "https://registry.npmjs.org/@rollup/rollup-linux-x64-gnu/-/rollup-linux-x64-gnu-4.60.2.tgz",
+      "integrity": "sha512-UQjrkIdWrKI626Du8lCQ6MJp/6V1LAo2bOK9OTu4mSn8GGXIkPXk/Vsp4bLHCd9Z9Iz2OTEaokUE90VweJgIYQ==",
+      "cpu": [
+        "x64"
+      ],
+      "dev": true,
+      "libc": [
+        "glibc"
+      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2016,6 +2066,9 @@
         "x64"
       ],
       "dev": true,
+      "libc": [
+        "musl"
+      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -2080,6 +2133,8 @@
     },
     "node_modules/@rollup/rollup-win32-x64-gnu": {
       "version": "4.60.2",
+      "resolved": "https://registry.npmjs.org/@rollup/rollup-win32-x64-gnu/-/rollup-win32-x64-gnu-4.60.2.tgz",
+      "integrity": "sha512-qdAzEULD+/hzObedtmV6iBpdL5TIbKVztGiK7O3/KYSf+HIzU257+MX1EXJcyIiDbMAqmbwaufcYPvyRryeZtA==",
       "cpu": [
         "x64"
       ],
@@ -2092,6 +2147,8 @@
     },
     "node_modules/@rollup/rollup-win32-x64-msvc": {
       "version": "4.60.2",
+      "resolved": "https://registry.npmjs.org/@rollup/rollup-win32-x64-msvc/-/rollup-win32-x64-msvc-4.60.2.tgz",
+      "integrity": "sha512-Nd/SgG27WoA9e+/TdK74KnHz852TLa94ovOYySo/yMPuTmpckK/jIF2jSwS3g7ELSKXK13/cVdmg1Z/DaCWKxA==",
       "cpu": [
         "x64"
       ],