Core Trust Framework (CTF)

v2026-03-24

CTF Services

Core Trust Framework Services include:

1. Directory of member organisations and catalogue of their trust framework data services
2. Pilot, Sandbox and Production directories and registries
3. Schemes
   • Perseus
4. Public catalogue of indexed data: https://opennetzero.org

The CTF is designed for cross-sector schemes.

It comprises basic principles and practices, as well as general legal terms and conditions that remove friction from joining individual Schemes, and align all members to a common baseline of service provision.

To join the CTF you must be an IB1 member and then opt-in to the CTF Terms & Conditions (using this form). If you have any questions or would like assistance, please contact partners@ib1.org.

Definitions

• https://ib1.org/definitions/trust-framework
• https://ib1.org/definitions/scheme

Trust Framework Principles

Trust Frameworks are designed to be:

1. Cohesive: Common rules across markets 
2. Interoperable: Common processes, frameworks, connections
3. Legal: Common frameworks for data rights, liability, redress
4. Controlled: Common, rights-based permission/consent management for access to data
5. Universal: Open to the whole market