Nexus Market Bureau est. 2026
Section index

Nexus Market Dossiers

Technical deep dives on individual mechanisms, PGP key, multisig, captcha, onion address structure.

What a dossier covers

One mechanism, in depth, from first principles. How a v3 onion address is constructed. How a two of three multisig arrangement holds an order. How the fingerprint captcha defeats a cloned front end. How PGP signatures prove an announcement came from the key it claims. Each is written so somebody who has never met the subject can follow it without reading the others first.

Why mechanisms rather than advice

Advice ages badly and is easy to follow without understanding, which means it is also easy to abandon at the first inconvenience. A mechanism explained properly produces the advice as a consequence. Somebody who understands why an address cannot be forged does not need to be told to check it.

The level they are pitched at

Technical but not academic. No cryptographic proofs, no protocol specifications quoted at length. Enough detail that the guarantees are clear and the limits are honest, and no more than that. Where a mechanism has a boundary, the dossier says where it stops working, because a protection described without its limits is worse than none.

What they are not

Not implementation guides. Nothing here describes how to run a service, only how the pieces behave from the outside, which is the position a visitor is actually in.

01

The Nexus operator PGP key, technical dossier

Where the key lives, what it does, why it matters, how the reader anchors trust to it.

5 min
02

The 2 of 3 multisig flow, step by step

Every step in the multisig escrow flow, from key generation at order time to release at finalisation.

6 min
03

The captcha system, address embedding and phishing defence

How the Nexus captcha works, why the address is baked into the image, what phishing clones cannot copy.

4 min
04

The onion address, structural dossier

What a v3 onion address actually is, how it is constructed, why the prefix does not matter cryptographically.

5 min
05

Tor network architecture, what a hidden service actually is

The three-relay routing model and why Nexus is only reachable through Tor Browser.

6 min
06

GnuPG basics for Nexus readers

The minimum GnuPG knowledge a reader needs to verify Nexus rotations.

5 min
07

Wallet software comparison, what actually to install

Wallet software recommendations for each coin, with the reasoning behind each.

5 min