| Metric | PBFT (Tendermint) | HotStuff | | | -------------------------- | ----------------- | -------- | ------------------- | | Finality Latency (median) | 4.2s | 3.1s | 0.47s | | Throughput (tx/s) | 12,000 | 18,000 | 65,000 | | View Change Overhead | $O(n^2)$ | $O(n)$ | $O(1)$ | | Post-Quantum Safe | No | No | Yes (ELC-512) | | Energy per tx (Joules) | 240 | 210 | 12 |

TLA+ model specification for ATB.

Where $\textOrbit(B)$ is a pseudo-random integer derived from the hash of $B$ modulo the current Tide.