Allow the Staker to Accept openClaim

[eduardo-munoz]

Problem

• The current implementation requires 3 transactions in order to settle on an openClaim. Two scenarios include:

  a) Claimant calls openClaim, Claimant calls proposeSettlement, Staker calls acceptSettlement
  b) Claimant calls openClaim, Staker calls proposeSettlement, Claimant calls acceptSettlement

Solution

• Add a function (ex. acceptClaim) where the Staker can accept the Claimant's openClaim. This will minimize the flow from 3 transactions to 2 transactions