; (bb) accepting digital commodities from another person for the purpose of entering into digital commodity trades; (cc) arranging digital commodity trades on behalf of another person; or (dd) a similar activity, as determined by the Commission. (II) Exclusion The term digital commodity broker does not include a person solely because that person validates digital commodity transactions. (iv) Digital commodity custodian The term digital commodity custodian means a person that, as an identifiable business, maintains possession, custody, or control over digital commodities on behalf of another person. (v) Digital commodity dealer (I) In general The term digital commodity dealer means a person that— (aa) has an identifiable business of dealing in a digital commodity as principal for its own account; (bb) makes a market in a digital commodity; (cc) holds itself out as a dealer in a digital commodity; (dd) has as an identifiable business of buying or selling digital commodities for conversion into other digital commodities, currency, or other consideration; (ee) has as an identifiable business of accepting digital commodities from another person (referred to in this item as a depositor ) with an obligation to return the digital commodities, consideration linked to the digital commodities, or both to the depositor; or (ff) engages in a similar activity, as determined by the Commission. (II) Exclusion The term digital commodity dealer does not include a person solely because that person validates digital commodity transactions. (vi) Digital commodity platform The term digital commodity platform means a person that is 1 or more of the following: (I) A digital commodity broker. (II) A digital commodity custodian. (III) A digital commodity dealer. (IV) A digital commodity trading facility. (vii) Digital commodity trade (I) In general The term digital commodity trade means a purchase or sale of a digital commodity in exchange for— (aa) another digital commodity