GCRI · Foundry

NXS-NSF

NXS-NSF (trust, authorisation and assurance) is the trust and assurance system: policy, rights and assurance decisions that every other system checks before acting, so that authentication never stands in for authorisation.

03The problem it addresses

Access decisions scattered across systems drift apart.

NXS-NSF is defined in system profile NRS-S13 of the Nexus Standards. When every application implements its own permissions, the same person can be allowed in one place and refused in another, and nobody can answer who may do what. A shared decision point with explicit grants, deny-by-default rules and an audit trail is the control.

  • Explicit grants per project, role and data class.
  • Deny by default; authenticated is not authorised.
  • Assurance evidence attached to decisions.
04Reference practice

The standards a design like this is read against.

ReferenceRelevance
NIST CSF 2.0 (govern function)Cybersecurity governance
ISO/IEC 27001Access control and information security management
ISO/IEC 42001Controls for AI use
05Neighbouring systems

What it exchanges with the other systems.

06Rooms

The ten rooms of NXS-NSF.

NXS-NSF has the eight rooms every Foundry system shares, set to its own authority, and two specialist rooms, Authority and Assurance. Each is described by the work it is designed for; the public register records NXS-NSF as declared, not deployed.

RoomKindDesigned to
StationSharedOperate, inspect and correct authoritative domain posture for trust, authorisation, mandate, purpose, sovereignty, policy and assurance
MissionSharedCoordinate bounded objective-oriented intelligence and human handoff for trust, authorisation, mandate, purpose, sovereignty, policy and assurance
BuilderSharedDesign, engineer and prepare governed changes and artefacts for trust, authorisation, mandate, purpose, sovereignty, policy and assurance
MapsSharedInspect and compose spatial, temporal and world-model intelligence for trust, authorisation, mandate, purpose, sovereignty, policy and assurance
DataSharedWork with data, ontology, Chronotopes, graphs, scientific methods and risk for trust, authorisation, mandate, purpose, sovereignty, policy and assurance
CommonsSharedWork with policy, law, standards, clauses, obligations and assurance for trust, authorisation, mandate, purpose, sovereignty, policy and assurance
ReportsSharedCompute, model, synthesise and visualise governed analytical products and reproducible reports for trust, authorisation, mandate, purpose, sovereignty, policy and assurance
KnowledgeSharedWork with institutional memory, records, citations, runbooks and learning for trust, authorisation, mandate, purpose, sovereignty, policy and assurance
AuthoritySpecialistMake mandates, delegations, purpose constraints, jurisdiction profiles and authorisation decisions inspectable and governable
AssuranceSpecialistAssemble and review bounded assurance cases connecting claims, controls, evidence, findings, exceptions, remediation and reliance limits
07Access

Authorised projects only.

Access requires an authorised project with an accountable owner, data terms and a review plan. Enquiries go to the contact form.

08Risk Academy

Where NXS-NSF subjects are taught.

Risk Academy, led by the Nexus Consortium, teaches the subjects practised in NXS-NSF in these disciplines; the Global Centre for Risk and Innovation (GCRI) links to the Academy as a partner and does not provide its courses.

09Sources

Where this page’s references lead.

The bodies and documents this page is read against. Status and editions change; each link goes to the issuing body.

10Questions

Questions and answers.

Is the system available now?
Allocations open when their terms and review capacity exist; information and enquiries are open today.
Foundry

Bring a method, a dataset or a question.

Information and enquiries are open today. An enquiry receives a reference and names the next step; applications, payments, compute allocations and registrations open only when their team, terms and review capacity exist.

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