[question] Image not found on dockerhub

[xiechengsheng]

# pouch pull registry.hub.docker.com/library/pouchrobot:v1.0
registry.hub.docker.com/library/pouchrobot:v1.0: resolving      |--------------------------------------| 
elapsed: 0.5 s                                   total:   0.0 B (0.0 B/s)                                         
Error: failed to display progress: failed to pull image: server message: insufficient_scope: authorization failed

Does this image only exist in company's private repository?