Address and Key Chains define the boundaries of an Account. In case of an AddressChain or a PublicKeyChain access is read only, that is you can retrieve associated ledger entries but can not create transactions that would modify them. ##AddressListChain The simplest read-only chain, you create it by providing a list of adresses. ##MasterPublicChain An address list defined by a master public key. ##KeyListChain An account for which we have a list of private keys. ##MasterPrivateChain Access to an account defined by a new master private Key ##MultiSigMasterChain Access to an account with n of m signatures of corresponding master keys.