A method includes storing, by a first computing device, assignable tokens in a first partition of a plurality of partitions of a first address of a first digital asset unit and initiating an interaction with a second computing device including a second digital asset unit. The method further includes determining to assign conditional access rights to an amount of the assignable tokens to the second computing device for the interaction. The assignment of the conditional access rights is a smart contract. The method further includes locking, in accordance with the smart contract, the amount of the assignable tokens stored in the first partition, associating a second partition with the second digital asset unit, and associating the amount of the assignable tokens with the second partition. The second digital asset unit does not store the amount of the assignable tokens.