Transaction not yet indexed

5c21ArBHncsCqBb3NxEiBJfCaEBmCo6EWEUwsSyVDeuTYbKuQfWzd32gpLREFWH288fbtPPmqc47Cpfx2KtpNYW9

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