Transaction not yet indexed

543JkLKMvoAxCG8CfUqYzgqCAPe9pheCNamfHStQg6NP4QVgi7mjvrTwvCqKyMHwnVGDt9FTz7a7toFvtDNFVxLS

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