diff --git a/buds/06.md b/buds/06.md
index d302095..0584116 100644
--- a/buds/06.md
+++ b/buds/06.md
@@ -10,11 +10,11 @@ Defines how clients can verify if the upload can be completed before sending the
 
 ## HEAD /upload - Upload requirements
 
-The `HEAD /upload` endpoint `MUST` use the `Content-Digest`, `X-Content-Type` and `X-Content-Length` headers sent by client to get the SHA-256 hash, MIME type and size of the blob that will be uploaded, returning a HTTP status code and a custom header `X-Upload-Message` to indicate some human readable message about the upload requirements.
+The `HEAD /upload` endpoint `MUST` use the `X-SHA-256`, `X-Content-Type` and `X-Content-Length` headers sent by client to get the SHA-256 hash, MIME type and size of the blob that will be uploaded, returning a HTTP status code and a custom header `X-Upload-Message` to indicate some human readable message about the upload requirements.
 
 ### Headers
 
-- `Content-Digest`: A string formatted as `sha-256=:<base64digest>:`, where `<base64digest>` is the base64-encoded SHA-256 hash of the blob.
+- `X-SHA-256`: A string that represents the blob's SHA-256 hash.
 - `X-Content-Length`: An integer that represents the blob size in bytes.
 - `X-Content-Type`: A string that specifies the fblobile's MIME type, like `application/pdf` or `image/png`.
 - `X-Upload-Message`: A human readable message that explains the reason why the upload cannot proceed.
@@ -32,7 +32,7 @@ Example request from the client:
 ```http
 X-Content-Type: application/pdf
 X-Content-Length: 184292
-Content-Digest: SHA-256=:88a74d0b866c8ba79251a11fe5ac807839226870e77355f02eaf68b156522576:
+X-SHA-256: 88a74d0b866c8ba79251a11fe5ac807839226870e77355f02eaf68b156522576
 ```
 
 Example response from the server if the upload can be done:
@@ -48,27 +48,27 @@ Some examples of error messages:
 
 ```http
 HTTP/1.1 400 Bad Request
-X-Upload-Message: Invalid Content-Digest header format. Expected format: sha-256=:<hash>:
+X-Upload-Message: Invalid X-SHA-256 header format. Expected a string.
 ```
 
 ```http
 HTTP/1.1 401 Unauthorized  
-X-Upload-Message: Authorization required for uploading video files
+X-Upload-Message: Authorization required for uploading video files.
 ```
 
 ```http
 HTTP/1.1 401 Forbidden  
-X-Upload-Message: Account banned
+X-Upload-Message: SHA-256 hash banned.
 ```
 
 ```http
 HTTP/1.1 411 Length Required  
-X-Upload-Message: Missing Content-Length or X-Content-Length headers
+X-Upload-Message: Missing X-Content-Length header.
 ```
 
 ```http
 HTTP/1.1 413 Content Too Large
-X-Upload-Message: File too large. Max allowed size is 100MB
+X-Upload-Message: File too large. Max allowed size is 100MB.
 ```
 
 ```http