Transaction not yet indexed

2k51cUgVpZSZRH4K8iMD9mVfuGtkuQk26miRbqkNRdrZbkgobsCMGqJKv6adwCccXSxRoG9LhqbFtyS8BGYBWpvb

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