Transaction not yet indexed

668ktPMUQssUDLkLE8tTvFSLLXTRu7A53P2vbxiM8fpdh6mn5Sibq7hBYHYVummq4EXmoWKMeuWqTMHnQ4RE6r2B

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