The Fortanix Signing Provider for TMKMS solution provides operators of Ignite (formerly, Tendermint) or Evmos validator nodes a secure mechanism to maintain long lived keys online. The solution forms part of the Fortanix Secure Web3 Infrastructure suite of tools and is provided as a managed service. In this briefing document, we highlight the benefits that our solution delivers to operators of validator nodes that have the need to securely maintain long lived keys online.