Transaction not yet indexed

15ffvwVtES94YGGymWEJpyypPjfL7FAEh2mcUNLwJcSPkpMtBWA3REoMAubggrpFJLAyAe8pXnfn1JEGUQ3isNU

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