Transaction not yet indexed

MpZ78zZjRtduSCAtcdDqzGkbrZ6FAAuaAorSB69vcZzi2bMpLKwNmsNfuSVC6UwTCzfFynpk3QXCMmg6Q5B5v7s

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.