How to retrieve collections via ActivityPub

I'm playing around with exploring my social network and I'm trying to find my "liked" collection.

I can go to one of my comments (or any comment) and select more->activity to see the favorites and reduces.

From the activitypub spec I think I should be able to see my collection by doing:
curl -X GET -H "Content-Type: application/ld+json; profile='https://www.w3.org/ns/activitystreams'" -H 'Accept: application/activity+json' https://kbin.social/u/aprentic/liked | jq
but that just gets me:
curl: (23) Failure writing output to destination

What am I missing?