diff --git a/packages/upload-api/src/blob/accept.js b/packages/upload-api/src/blob/accept.js
index 6e2d31b7a..c1bd35d5c 100644
--- a/packages/upload-api/src/blob/accept.js
+++ b/packages/upload-api/src/blob/accept.js
@@ -1,3 +1,5 @@
+import * as Link from 'multiformats/link'
+import * as CAR from '@ucanto/transport/car'
 import * as Server from '@ucanto/server'
 import * as DID from '@ipld/dag-ucan/did'
 import * as W3sBlob from '@web3-storage/capabilities/web3.storage/blob'
@@ -50,7 +52,7 @@ export function blobAcceptProvider(context) {
         audience: DID.parse(space),
         with: context.id.toDIDKey(),
         nb: {
-          content: { digest: digest.bytes },
+          content: Link.create(CAR.codec.code, digest),
           location: [createUrl.ok],
         },
         expiration: Infinity,