SDX Protocol
For architects

Use cases

Plain-language explainers of what the protocol does in a real setting, each with a copy-and-paste diagram.

Two explainers, written for readers who decide rather than build. Each one follows a single case from the moment data leaves one organisation to the moment another can verify it, and ends with a diagram you can lift into your own material.

  • Fraud signals: a bank, a payment service and a logistics firm each see one fragment of a coordinated fraud, and compare patterns without handing over customer data.
  • Passport photos: a photo travels from the photographer to the official who approves the document, and stays provably the photo the camera took.

The technical counterparts are the domain protocols: fraud-signal sharing and content authenticity. The interactive explorers walk the same ground visually.

Introduction

In plain terms: what this open standard is and why it exists, with pointers on where to go next.

Fraud signals

A public-private explainer for cross-sector fraud signals, with a copy-and-paste diagram.