Transaction not yet indexed

53NBknPKCqx6QBpnievhFV7kqxJi48miSAMeHjHbfKfVvrS3WmLLQK9ziqLMQ1ExtTU1kbeHsgBy5UT5jgDHspBX

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