All the resources are created with a name like "ci-[something]-[test-id]" where test-id is a 32 character uuid. That syntax is grabbing the last 32 characters of the resource name. The uuid is returned from the sb make command, so Jenkins or a human can use that to destroy the right resources, or get info on the right resources.

Eg this is in the current jenkins job:

export TEST_ID=`sb make`
echo "test id:" $TEST_ID
sleep 10
sb get -t $TEST_ID