diff --git a/VERSION b/VERSION
index fd4ca57..771411b 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.4.19
+1.4.20
diff --git a/ingest-api-spec.yaml b/ingest-api-spec.yaml
index b8f5031..618bcc9 100644
--- a/ingest-api-spec.yaml
+++ b/ingest-api-spec.yaml
@@ -2,7 +2,7 @@ openapi: 3.0.0
 info:
   description: |
     A RESTful web service exposing calls needed for the SenNet Data Sharing Portal.
-  version: 1.4.19
+  version: 1.4.20
   title: SenNet Ingest API
   contact:
     name: SenNet Help Desk
@@ -625,6 +625,19 @@ paths:
         "500":
           description: An unexpected error occurred
 
+  /metadata/provenance-metadata/{identifier}:
+    get:
+      tags:
+        - metadata
+      summary: Returns the full provenance metadata for the provided dataset and all of its ancestors.
+      responses:
+        "200":
+          description: The JSON containing full provenance metadata
+        "401":
+          description: User's token is not valid
+        "500":
+          description: An unexpected error occurred
+
   /sources/bulk/validate:
     post:
       tags:
diff --git a/src/app.py b/src/app.py
index 599c0d1..e53163d 100644
--- a/src/app.py
+++ b/src/app.py
@@ -44,7 +44,7 @@
 # Log rotation is handled via logrotate on the host system with a configuration file
 # Do NOT handle log file and rotation via the Python logging to avoid issues with multi-worker processes
 logging.basicConfig(format='[%(asctime)s] %(levelname)s in %(module)s: %(message)s',
-                    level=logging.DEBUG,
+                    level=logging.INFO,
                     datefmt='%Y-%m-%d %H:%M:%S')
 logger = logging.getLogger(__name__)
 
diff --git a/src/uwsgi.ini b/src/uwsgi.ini
index 99ceb7a..86bc063 100644
--- a/src/uwsgi.ini
+++ b/src/uwsgi.ini
@@ -2,7 +2,7 @@
 # So uwsgi knows where to mount the app
 chdir = /usr/src/app/src
 
-# Application's callbale
+# Application's callable
 module = wsgi:application
 
 # Location of uwsgi log file
@@ -12,12 +12,14 @@ logto = /usr/src/app/log/uwsgi-ingest-api.log
 # By default uWSGI allocates a very small buffer (4096 bytes) for the headers of each request
 buffer-size = 32768
 
-# Master with 2 worker process (based on CPU number)
+# Master with 16 worker processes (based on CPU number)
 master = true
-processes = 2
+processes = 16
 
-# Enable multithreading for ingest-api
-enable-threads = true
+# Enable the multithreading within uWSGI
+# Launch the application across multiple threads inside each process
+enable-threads = True
+threads = 16
 
 # Use http socket for integration with nginx
 # 127.0.0.1:5000 or localhost:5000 won't work with Docker
@@ -29,3 +31,5 @@ vacuum = true
 
 # Ensure compatibility with init system
 die-on-term = true
+
+attach-daemon = python worker.py