So is it possible to use blockchain to avoid off-chain interaction between group members? Sth like the following:
- A group member proposes a transaction by putting her request to a specified box’s registers accessible by group members (they can use a shared box spendable by all group members to produce such a box with desired registers in order to avoid identity disclosure).
- Group members see the request and if they agree, they produce commitment and put it on blockchain like before.
- When reaching the threshold, one can simulate other commitments and do the same thing as before.
- One of the group members can generate the valid transaction.