One printing or cover of an issue: what a collector owns a copy of.
idstring (uuid)requiredissueIdstring (uuid)requiredreleaseIdstring (uuid) or nullrequiredisPrimarybooleanrequiredThe issue’s main edition (its cover A, first printing).
namestring or nullrequiredAs the publisher names it: "Cover B Jim Lee Variant".
coverVariantstring or nullrequiredprintinginteger or nullrequiredformatstring or nullrequireddistributionstringrequireddirect_market, newsstand, …
ratiostring or nullrequiredAn incentive ratio, e.g. "1:25".
isVirginbooleanrequiredisExclusivebooleanrequiredexclusiveRetailerstring or nullrequiredupcstring or nullrequiredupcAddonstring or nullrequiredThe 5-digit add-on that tells covers and printings apart.
isbnstring or nullrequiredskustring or nullrequiredcountrystring or nullrequiredlanguagestring or nullrequiredcoverUrlstring (uri) or nullrequiredstatusenumrequiredverified: from our sources or checked; provisional: added by a collector, not checked yet.
verifiedprovisionalupdatedAtstring (date-time)required