A first digital asset of a first entity is stored in a blockchain, in response to checking that an electronic option is selected for storing the first digital asset in the blockchain. A second digital asset of a second entity is received and is based at least in part on having satisfied the first digital asset. The first digital asset is validated for agreement with the second digital asset. The second digital asset is stored in the blockchain, in response to checking that an electronic option is selected for storing the second digital asset in the blockchain and in response to the being in agreement. A third digital asset is received on behalf of the first entity, in response to the first and second digital assets being available in the blockchain, the third digital asset being an indication that a requirement is satisfied for the second digital asset.