Hi,
Thanks for using Blokchain Workbench!
When you deployed Workbench, did you bring your own Blockchain endpoint or let Workbench create one for you?
If you are not bringing your own Blockchain endpoint, Workbench will create one instance of Azure Blockchain Service as the underlying Blockchain consortium resource. As configured, the Blockchain will generate block at least every 5 seconds even no
contract/transaction is deployed.
Let us know if you have any further questions!
Microsoft Azure Blockchain Team