Transaction not yet indexed

668Ex7qvV8bnkJu4LUHcMS6NeB6ETAXTWqmrV5Rd3h2GTrg763eHAwXaPkPaBHRwLDg4KpRC3oz2z96tU5zag2CY

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