For governments

Sovereign digital public infrastructure.

Build a digital identity service around the institutions that issue credentials and the people who use them. Start with one public service, define what it needs to verify, and test the complete citizen journey.

Programme reference

TridentGold, demonstrated in Barbados.

Barbados announced and demonstrated TridentGold in Bridgetown on 29 May 2026. The announcement sets out the programme and its intended public services.

Read the programme announcement
The architecture

Start with authority, disclosure and acceptance.

A useful pilot makes the issuer, citizen and receiving service part of the same design. Each has a distinct responsibility and a result to verify.

01

Keep issuing authority clear

Start with the public institution responsible for the source record. Define who can issue a credential, change its status and recover access.

The programme names the authority behind each credential.

02

Limit what a service receives

Map the information held by the issuer, the citizen and the receiving service. Specify which claims the service needs and what each institution retains.

Disclosure and retention are explicit design decisions.

03

Prove the integration

Choose the credential and presentation formats with the institutions that will accept them. Test the flow against their systems, including recovery and assisted access.

Acceptance is demonstrated with the receiving service.

Programme design

TridentArrow: a proposed digital travel corridor.

TridentArrow is the travel-credential service described in the TridentGold programme.Explore the planned journey from a national credential to a border check.

BBBarbadosSovereign issuer
GYGuyanaSovereign issuer

Proposed corridor: agree on accepted credentials and verification responsibilities in each country.

Built on the identity each country already has

The programme explores deriving a travel credential from an existing national identity. The pilot needs to establish how it is issued, held and accepted by the receiving authority.

Evaluate the presentation format, disclosed information and recovery journey with the border operators who will use them. A travel arrangement and a digital credential deployment require separate acceptance.

The published announcement describes a demonstration and planned milestones. Pilot scope and acceptance belong to the participating institutions.

  • 01

    Issue

    Identify the source credential and the institution authorized to issue it.

  • 02

    Hold

    Design how the citizen accesses the credential and recovers from a lost device.

  • 03

    Present

    Agree on the claims a receiving authority needs and how it verifies them.

  • 04

    Evaluate

    Test the complete journey with the institutions and people who will use it.

Interoperability

Agree on what each system will accept.

Select a credential format and presentation protocol for the specific service. Then verify the complete exchange with its operators, including expiry, status changes and failure handling.

  • Credential format

    Name the issuer, signature format, validity period and status mechanism that the receiving service accepts.

  • Presentation protocol

    Specify the requested claims, holder interaction and online or in-person verification flow.

  • Interoperability evidence

    Test the selected profile against each participating system and record the supported combinations.

  • Operating responsibilities

    Assign issuance, key management, retention, recovery and incident response to named institutions.

Pilot opportunities

Choose a service people need to finish.

Start with a frequent public-service task. Define its acceptance criteria and an assisted path before extending the approach to another service.

Cross a border

Evaluate a travel-credential presentation with the authorities responsible for departure and entry.

File taxes

Plan how a citizen authenticates to the revenue service and supplies the information it requires.

Renew a licence

Define the identity, licence-status and payment checks needed to complete a renewal.

Claim benefits

Agree on eligibility evidence and an assisted route for people who need help.

Present a certificate

Specify how an employer or another institution checks the issuer and validity of a certificate.

Open a bank account

Establish which identity evidence the receiving bank accepts and which additional checks it performs.

Bring us the service you need to digitise.

Bring the service owner, the identity supplier and the receiving institution into one scoping conversation. Agree on the citizen journey, the evidence required and the responsibilities for a pilot.

Holonym Foundation, a Delaware public benefit corporation