Technical Simulation: This visualization demonstrates the timing advantage of co-located signing infrastructure.
The 400ms War Room
Signing fast is a liability. You need to sign late- wait for the market to reveal itself, then execute in the final microseconds.
AWS KMS / Cloud HSM
Sign at T-0 (must account for ~35ms network latency)
Fireblocks / MPC
Sign at T-50ms (MPC coordination overhead)
Sovereign Pod
Strategy: JIT Signing @ T-399.95ms
Waiting to observe slot...
The 400ms Slot Race
On Solana, a block (slot) lasts approximately 400ms.
Traditional Signers
- • Must sign at T-0 (start of decision window)
- • 35-200ms network latency to remote HSM/MPC
- • Vulnerable to price movement during latency
Sovereign Pod (JIT)
- • Signs at T-399.95ms (last possible moment)
- • 42µs signing latency (co-located enclave)
- • Observes full slot before committing
Why Latency Matters
Signing late allows you to see the future. By holding your signature until the end of the slot, you can observe order flow and price updates that earlier signers missed. This is the essence of MEV (Maximal Extractable Value) protection and capture.
[!NOTE] JIT Signing requires the signing keys to be physically co-located with the Validator or RPC node to eliminate network round-trip time (RTT). This is only safe if keys are in a Nitro Enclave.