Transaction not yet indexed

ZAK4N18RqdzEKNjPhyjjTyGu8w7VuTPVKrrBaR6oPe4FB87MxGj9LbGBvLoiVDvTXaNhMLtqxFm7Dz4ce7tWMm6

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