Possibly incorrect container downloaded

I issued a simple command

docker run kitematic/hello-world-nginx

When I fire up the Kitematic Mac app, I see ecstatic_visvesvaraya/hello-world-nginx container. Why would that happen?

When you run a container, it is assigned a randomly generated name. In this case, it was assigned ecstatic_visvesvaraya.

I ran the same container, and mine was assigned tender_varahamihira.

Here is the CLI output listing the running containers:

$ docker ps
CONTAINER ID        IMAGE                         COMMAND             CREATED             STATUS              PORTS               NAMES
9b0a997bafdc        kitematic/hello-world-nginx   "sh /start.sh"      23 seconds ago      Up 22 seconds       80/tcp              tender_varahamihira