Transaction not yet indexed

668mAdc2dTRFjb41sNgiAMkcLSVQUWjTgo3itmV3DxWRaqZkWqe8gvYStfnCfk2Gf7KXsjXXBAWr4HMrUqALNpNP

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