Work in progress Blossom BUD-05

buds/02.md

@@ -19,6 +19,28 @@ A blob descriptor is a JSON object containing `url`, `sha256`, `size`, `type`, a
 - `size` The size of the blob in bytes
 - `type` (optional) The MIME type of the blob
 - `uploaded` The unix timestamp of when the blob was uploaded to the server
+- `compressed` (optional) A JSON object containing the `sha256`, `size`, `library`, `version`, and `parameters` JSON object containing the compression parameters `quality` and `mode`. This field is optional and should only be included if the blob was compressed
+
+Blob Descriptor example:
+```json
+{
+  "sha256": "b1674191a88ec5cdd733e4240a81803105dc412d6c6708d53ab94fc248f4f553",
+  "uploaded": 1708773959,
+  "size": 123456,
+  "type": "application/pdf",
+  "compressed": {
+    "sha256": "e2e2e1d2b9c04e2a9914c245e3f789d230e3c2d5e3a0f5c6e4b4e3f9c7d4f3e2",
+    "size": 56789,
+    "library": "brotli",
+    "version": "1.0.7",
+    "parameters": {
+      "quality": 11,
+      "mode": "text"
+    }
+  }
+}
+
+```
 
 Servers may include additional fields in the descriptor like `magnet`, `infohash`, or `ipfs` depending on other protocols they support