Transaction not yet indexed

53CU3rnv37iWHeX6nGi4pZrc81j9RrRGwr4NByihPFJDpnhKpkMU7uwrj5qu33JgpRpXCdkLu1vuNZZa1bnKRVCM

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