The shares collection MUST be either an OrderedCollection or a Collection

Requirement

The shares collection MUST be either an OrderedCollection or a Collection

Origin

The origin of this requirement is a quote from the ActivityPub specfiication:
prefixEvery object MAY have a shares collection. This is a list of all Announce activities with this object as the object property, added as a side effect.
The shares collection MUST be either an OrderedCollection or a Collection
suffix and MAY be filtered on privileges of an authenticated user or as appropriate when no authentication is given.
https://www.w3.org/TR/activitypub/ , § 5.8

id

urn:uuid:937ae4e2-dd33-40c7-be1d-3ecac7f9fad5

uuid

937ae4e2-dd33-40c7-be1d-3ecac7f9fad5

Full JSON

{
  "id": "urn:uuid:937ae4e2-dd33-40c7-be1d-3ecac7f9fad5",
  "type": "Behavior",
  "uuid": "937ae4e2-dd33-40c7-be1d-3ecac7f9fad5",
  "content": "The shares collection MUST be either an OrderedCollection or a Collection\n",
  "tag": [
    {
      "name": "ActivityPubServer",
      "id": "https://socialweb.coop/tag/ActivityPubServer"
    }
  ],
  "origin": {
    "source": "https://www.w3.org/TR/activitypub/",
    "section": {
      "id": "https://www.w3.org/TR/activitypub/#shares",
      "branch": [
        5,
        8
      ]
    },
    "selector": {
      "type": "TextQuoteSelector",
      "prefix": "Every object MAY have a shares collection. This is a list of all Announce activities with this object as the object property, added as a side effect.\n",
      "exact": "The shares collection MUST be either an OrderedCollection or a Collection\n",
      "suffix": "and MAY be filtered on privileges of an authenticated user or as appropriate when no authentication is given. \n"
    }
  },
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    "https://socialweb.coop/ns/testing/context.json"
  ]
}

Links