Transaction not yet indexed

668evXmbVvHsNVTZqMvabLSnt1X8WjVsaEava9bk9mXfPffmg7o3BX7oExXwWt8ycpcMVY15v7zBXjd1ZLxUpm46

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