These are the chains we currently have reliable nodes running for and can check with 100% certainty.
BTC: 14cLheEAcPKGYARSfeuVw6HWijWEWDiJ4t
BCH: 36xvKCTyMEFGHN5MvSMSrojJLxTihJewqM
LTC: 32fXhn4hAuTiu46FCFayahDrpsmy7GoXBZ
ETH: 0x27801b6339074c1781b411334ce2c69b201eb9c8