Transaction not yet indexed

668kQ8zruJWNUnwVGeTr8SC7PgF4AtZjFkWEMURn6oBFPJGEPFNTabPjVtYxDQsgPZfcFm9ZfWqjEncXgjVG2fzu

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