Basic Workflow

1. Check based on current state if flow is allowed to be executed and what the new state would be.
2. Create new state as transaction
3. Check if new state passes verify function
4. Propose new state to other participants by invoking subflows
5. Every other party checks new state
6. Signs it if it passes
7. Sends it back to the initiator
8. Initiator sends it to the notary, Notary checks if everyone signed and if it is valid, Notary sends it to participants to push on ledger