# Permissioned Ledger 1. A large, [[Distributed (network)|distributed network]] using a native [[Token(s)|token]], with access restricted to those with specific roles. 3. A shared database with a [[Blockchain|blockchain]] structure that requires participants to obtain permission before reading or writing to the chain. Contrast this with [[Permisionless|permissionless]] blockchains, which anyone can join. 4. Is a [[Ledger|ledger]] where actors must have permission to access the ledger. Permissioned ledgers may have one or many owners. When a new record is added, the ledger’s integrity is checked by a limited [[Consensus Mechanism (algorithm)|consensus]] process. This is carried out by trusted actors — government departments or banks, for example — which makes maintaining a shared record much simpler than the consensus process used by [[Permisionless|unpermissioned]] ledgers.