A change to what a copy is (issue, edition or variant), from its history.
idstring (uuid)requiredreasonenumrequiredOne ofchangecodeundo
createdAtstring (date-time)requiredundoneAtstring (date-time) or nullrequiredfromobjectrequiredissueIdstring (uuid) or nullrequiredissueLabelstringrequirededitionLabelstring or nullrequiredpendingVariantbooleanrequiredThe collector’s own variant, waiting for review.
toobjectrequiredissueIdstring (uuid) or nullrequiredissueLabelstringrequirededitionLabelstring or nullrequiredpendingVariantbooleanrequiredThe collector’s own variant, waiting for review.
codeobject or nullrequiredThe code that led to it (reason "code").
kindenumrequiredOne ofupcisbnissndistributor
codestringrequiredaddonstringrequiredundoablebooleanrequiredThe copy’s latest change, and the copy is still what it made it.