Transaction not yet indexed

688xn5sMonMs4wib2tWmKoV8b3aSpF7v6CCqfFiAqUg1himv7VS4yxcxuZQADuLiZQEAcLzvvaE6g8KdhTRdTEG

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