You can revoke an access grant to an object at any time with the command uplink revoke
.
./uplink.exe revoke asdfRF...
uplink revoke asdfRF...
uplink revoke asdfRF...
The access will be revoked permanently for this parent access grant.
If you want to share this content again you should create a new access grant through the web interface.
./uplink.exe revoke --access access-name
uplink revoke --access access-name
uplink revoke --access access-name