9. The vendor of a smart contract or, in the absence thereof, the person whose trade, business or profession involves the deployment of smart contracts for others in the context of executing an agreement or part of it, to make data available that meet the common specifications established by implementing acts referred to in paragraph 6 or parts thereof shall be presumed to be in conformity with the essential requirements laid down in paragraph 1 to the extent that those requirements are covered by such common specifications or parts thereof.