Transaction not yet indexed

668kEMbbXMWpWeNf6bknrVm2LGA9LZrwaLRboXu56JircEYxDDDUWr4vpdwFyWmXpg7FuB75m16JCnpsTzgakcb2

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