INVITE ONLY
OBSERVATORY

02 Guides

Run the verification yourself.

Each guide is an instrument you operate — verify a key, read a handshake, check a Bell transcript. No trust in QERYX required.

Pick a claim and check it.

A guide names the claim it tests, the exact steps that test it, and the result that would falsify it. Work through one and you hold a verdict you produced, not a statement we made.

5 PROCEDURES
2 HOW-TO
3 TUTORIAL
7 PRIMITIVES
2026-07-17 LAST REVISION

Take one and finish it.

Every guide, newest revision first

  1. 01 tutorial v1.0 published revised Understand the Handshake What actually happens in the second before your first message sends: two key exchanges run side by side — X25519 and ML-KEM-1024 — both peers contribute quantum-sourced entropy, and each leg is signed under its own FIPS 204 context. A plain-language walk through Entangled Session v1. X25519ML-KEM-1024ML-DSA-87HKDF-SHA-512
  2. 02 how-to v1.1 published revised Verify a Bell Binding How a third party — an auditor, a journalist, a counterparty — checks that a session claiming a Bell binding really consumed a CHSH-verified transcript: fetch the transparency leaf, verify the Merkle inclusion proof, recompute S from the measurement counts, and confirm it sits in the accepted window. No trust in QERYX required. ML-DSA-87HKDF-SHA-512SHA3-256
  3. 03 how-to v1.0 published revised Verify Your Safety Number The one manual step that closes the machine-in-the-middle door. What the safety number is, why the Key Transparency log cannot replace an out-of-band check, and the exact steps to run one — in person, over a call, or by QR. Five minutes, once per contact. ML-DSA-87SHA-512
  4. 04 tutorial v1.0 published revised What a Subpoena Yields The honest inventory of what a legal order against the QERYX relay can and cannot produce: ciphertext the order-holder cannot decrypt, blinded participant hashes, connection-level metadata — and, for destroyed conversations, envelope-locked bytes under a key that no longer exists. No dramatization; the table is the answer. ML-KEM-1024X25519ChaCha20-Poly1305HKDF-SHA-512
  5. 05 tutorial v1.0 published revised The Reviewer FAQ State-actor-tier reviewer questions, anticipated and answered: why Level 5 parameter sets, why hybrid rather than pure post-quantum, where formal verification stands, how side-channel classes are foreclosed, what happens when operator keys are compromised, and where to find a wire trace you can verify yourself. ML-KEM-1024ML-DSA-87HKDF-SHA-512

Every procedure here runs against the shipping build on your own device or in your own browser. A guide that needed access we control would not be a verification, and it is not on this list.