Limit scan depth for unconfirmed checkpoints #218
Merged
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The relayer was not submitting proofs of checkpoint confirmation since it was searching from the oldest unconfirmed, but only looking back 100 blocks. We don't want to always use the newest unconfirmed since it is a moving target and on an active network there is likely always a tip which is unconfirmed - as a middle ground we use the oldest unconfirmed at a maximum of 5 checkpoints behind the tip (this will need parameterizing in the future).