Transaction not yet indexed

21Ak8FexfECqCvyifkk4Mccgkt6ZB8dneyVDQghA5W2FJs5SfKB7YUZe3o4DzN3MfBkVFk1vVKKkVSiBZ2uARM6E

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