Transaction not yet indexed

21C3cKMiHfssqEA7daGaNYTMNXVbuJDfosMSgKkANcXpcMV7LL9E5VsdAAiCCQKPpLP4cDgBcc3qtzTTUKTeJmtG

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