diff --git a/src/utils/upload.ts b/src/utils/upload.ts
index 75954ae..4252689 100644
--- a/src/utils/upload.ts
+++ b/src/utils/upload.ts
@@ -2,12 +2,18 @@ import * as fs from 'node:fs'
 const keys = JSON.parse(fs.readFileSync('s3.json', 'utf-8'))
 
 async function uploadVideo(video: string) {
+  const fileBuffer = await Bun.file(video).arrayBuffer()
+  const hasher = new Bun.CryptoHasher("sha256");
+  hasher.update(fileBuffer);
+  const fileHash = hasher.digest("hex");
+
   const uploaded = await fetch(`${keys.endpoint}/preservetube/${video.split('/')[2]}`, {
     method: 'PUT',
     headers: {
-      'x-authtoken': keys.videos[0].secret
+      'x-authtoken': keys.videos[0].secret,
+      'x-file-hash': fileHash
     },
-    body: await Bun.file(video).arrayBuffer()
+    body: fileBuffer
   })
   if (!uploaded.ok) throw new Error(`failed to upload video - ${uploaded.status} (${uploaded.statusText}) ${await uploaded.text()}`)
   return uploaded.url.replace(keys.endpoint, 'https://s5.archive.party')
@@ -18,6 +24,10 @@ async function uploadImage(id: string, url: string) {
   const arrayBuffer = await response.arrayBuffer()
   const bufferHash = Bun.hash(Buffer.from(arrayBuffer)).toString()
 
+  const hasher = new Bun.CryptoHasher("sha256");
+  hasher.update(arrayBuffer);
+  const fileHash = hasher.digest("hex");
+
   const exists = await fetch(`${keys.endpoint}/preservetube-media/${id}-${bufferHash}.webp`, {
     method: 'HEAD',
     headers: {
@@ -29,7 +39,8 @@ async function uploadImage(id: string, url: string) {
   const uploaded = await fetch(`${keys.endpoint}/preservetube-media//${id}-${bufferHash}.webp`, {
     method: 'PUT',
     headers: {
-      'x-authtoken': keys.videos[0].secret
+      'x-authtoken': keys.videos[0].secret,
+      'x-file-hash': fileHash
     },
     body: arrayBuffer
   })