Journal

Notes from the build.

20 July 2026 The number we do not publish
Our claims registry has an empty slot where the throughput figure should be, and it stays empty until evidence fills it.
20 July 2026 Four tiers of evidence
Verified, observed, inferred, unassessed: how we grade every claim we make, including to ourselves.
20 July 2026 Runtime evidence, re-checked nightly
Why every security-relevant change to our messaging infrastructure ships with a captured run of the real system, and why we re-check those captures every night.