Transaction not yet indexed

668Y7T1E3uQ2B7fbefQFSLkj5NzCtesLnFypRrSSB2iAcDFNTnamvUNeVvVmpYsVmDDwYHVKVDfshpZpDSAsMmpR

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