Transaction not yet indexed

21i6Hpd16ggHDFSjtvaNPQv8H5Uv6tVkDPtubZRZDZDMYF4n7WTY5S4agFPvoMx1k4Dvyvim11wzpEnfvBHTMATX

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