I have some confusions regarding how state ledgers are persisted across multiple ledgers. I have an intuition that every org's peers have a copy of the ledger from where they generate read set and write set and also validate commitment of transactions to ledger. My big confusion is, who has the master copy. I mean what if one complete non endorsing peer was down for sometime and then it rejoins, from where does it syncs it's ledger since a lot must have happened in the block chain since it's shut down.