#Verifying Verifiable Credentials via Digital Credentials API

This guide shows you how to verify credentials using the browser-native Digital Credentials API (DC API). The DC API enables secure, native credential sharing directly through the user's browser or operating system, providing a seamless user experience without redirects or QR codes.

We recommend checking out our Digital Credential Button project, which provides a reference for how to invoke the Browser-based DC API. It contains up to date tutorials for setting up and end to end demo utilizing the DC API. This guide will just focus on how to configure the Verifier API for this use case.

#Prerequisites

Before you begin, ensure you have:

Verifier2 API running — Follow the Getting Started or Setup guide
DC API-compatible browser — Chrome 121+, Safari 18+, or Edge 121+ (desktop or mobile)
HTTPS enabled — The DC API only works over secure connections (required for production; localhost is allowed for development)
Test credentials — Use the walt.id Wallet or any DC API-compatible wallet for testing
X.509 certificate and key (for signed requests) — Required for HAIP profile and ISO 18013-7 Annex C flows
Local Development: When running locally via Docker, the API is available at http://localhost:7003 (standalone) or http://localhost:7004 (Docker Compose). The DC API will work with localhost URLs during development.

#Understanding DC API Protocols

The Verifier2 API supports two DC API protocols:

Over 18013-7 (Annex C) using flow_type = "dc_api-annex-c"
Over OpenID4VP 1.0 (Annex D) using flow_type = "dc_api"

For each of these, we support both same device and cross device flows. You can find many examples in the Digital Credential Button project as well as the swagger documentation for the Verifier API.

#Step 1: Preparing the Verification Session

This example requests an mDL credential using the ISO 18013-7 Annex C protocol with signed requests. The user will see a native browser credential picker to select and share their credential.

CURL

Endpoint: /verification-session/create | API Reference

Example Request

curl -X 'POST' \
  'http://localhost:7003/verification-session/create' \
  -H 'accept: */*' \
  -H 'Content-Type: application/json' \
  -d '{
  "flow_type": "dc_api",
  "core_flow": {
    "dcql_query": {
      "credentials": [
        {
          "id": "my_mdl",
          "format": "mso_mdoc",
          "meta": {
            "doctype_value": "org.iso.18013.5.1.mDL"
          },
          "claims": [
            {
              "path": [
                "org.iso.18013.5.1",
                "family_name"
              ]
            },
            {
              "path": [
                "org.iso.18013.5.1",
                "given_name"
              ]
            },
            {
              "path": [
                "org.iso.18013.5.1",
                "age_over_21"
              ]
            }
          ]
        }
      ]
    },
    "signed_request": true,
    "encrypted_response": true,
    "clientId": "x509_hash:abc-xyz-base64url-sha256-hash-of-der-x509-leaf",
    "key": {
      "type": "jwk",
      "jwk": {
        "kty": "EC",
        "d": "AEb4k1BeTR9xt2NxYZggdzkFLLUkhyyWvyUOq3qSiwA",
        "crv": "P-256",
        "kid": "_nd-T2YRYLSmuKkJZlRI641zrCIJLTpiHeqMwXuvdug",
        "x": "G_TgBc0BkmMipiQ_6gkamIn3mmp7hcTrZuyrLTmknP0",
        "y": "VkRMZdXYXSMff5AJLrnHiN0x5MV6u_8vrAcytGUe4z4"
      }
    }
  },
  "expectedOrigins": [
    "http://localhost:7003"
  ]
}'

Body Parameters

flow_type: String (required) - Specifies how the credential request will be delivered to the holder's wallet. Options:
- "cross_device" — User scans a QR code on a different device (e.g. desktop browser → phone wallet)
- "same_device" — User clicks a deep link on the same device (e.g. phone browser → wallet app on same phone)
- "dc_api" — Browser/OS-native Digital Credentials API (Chrome, Safari, iOS/Android native)
core_flow: Object (required) - Defines what credentials to request and which policies to apply. Contains:
- dcql_query: Object (required) - Specifies the credential type, format, and claims to request using the DCQL query language. You can also use the DCQL builder here.
  - credentials: Array - List of credential queries. Each credential query contains:
    - id: String - Unique identifier for this credential in the request (used in policy results)
    - format: String - Credential format. For mDL, use "mso_mdoc" (mobile security object document).
    - meta.doctype_value: String - The ISO mDL document type. For mobile driver's licenses, use "org.iso.18013.5.1.mDL".
    - claims: Array (optional) - Specific claims to request from the credential. Each claim has a path array with namespace and claim name (e.g. ["org.iso.18013.5.1", "family_name"]). If omitted, all claims that are non-selectively disclosable are provided by the wallet.
- policies: Object (optional) - Validation rules applied to the received credential. Defaults to signature verification only if omitted.
  - vc_policies: Array - Policies applied to individual credentials. Each policy has a policy field specifying the policy name. Available policies: signature, expired, not-before, revoked-status-list, schema, and more. See Policies for the complete list.
  - vp_policies: Array (optional) - Policies applied to the entire presentation (not shown in this example)
redirects: Object (optional) - Success and error redirect URLs (only for cross_device and same_device flows)
- successRedirectUri: String - URL to redirect the user after successful verification
- errorRedirectUri: String - URL to redirect the user if verification fails
url_config: Object (optional) - URL configuration for this session. Only applies to cross_device and same_device flows (not dc_api).
- url_prefix: String (optional) - The publicly accessible base URL where the wallet will fetch the authorization request and post its response. Overrides the urlPrefix from verifier-service.conf.
  - The service constructs: Request URI: {urlPrefix}/{sessionId}/request and Response URI: {urlPrefix}/{sessionId}/response
  - Must be reachable by the wallet (use ngrok or public URL for local development)
- url_host: String (optional) - The base URL used to construct the authorization request link. Overrides the urlHost from verifier-service.conf.
  - For standard OID4VP flows, use "openid4vp://authorize" (default)
  - For custom authorization endpoints (e.g. conformance testing), provide a full HTTPS URL
signed_request - Whether the request should be signed.
encrypted_response - Whether the response should be encrypted.
expectedOrigins: The expected origins for the verification. This is a requirement of the DC API.
clientId: The client ID to be used for the verification as per the HAIP specification.
key: The key used by the wallet to encrypt the response to the verifier (optional based on if you are using encrypted_response).
Many parameters have defaults configured in verifier-service.conf. Request-level parameters override these defaults for that specific session only. See Configuration Defaults below.

Response

{
  "sessionId": "ff4f0c86-56ce-4e4a-a137-dd5569049ff3",
  "bootstrapAuthorizationRequestUrl": "openid4vp://authorize?client_id=did%3Ajwk%3AeyJrdHkiOiJPS1AiLCJjcnYiOiJFZDI1NTE5Iiwia2lkIjoiU05JZ1ItTHZzSEUtNkhUUGxYYUpQVDVubHRZMFpqZlA0VkpTWEwzQ2ZkMCIsIngiOiJIVWM1ZHY1eFREV3VMVmZQcFdvVXBWTjZ1QTNJNzBsVzVnNEhoMG5VaDQ0In0&request_uri=http%3A%2F%2Forg.enterprise.localhost%3A3000%2Fv1%2Forg.tenant.verifier%2Fverifier2-service-api%2Fff4f0c86-56ce-4e4a-a137-dd5569049ff3%2Frequest",
  "fullAuthorizationRequestUrl": "openid4vp://authorize?response_type=vp_token&client_id=did%3Ajwk%3AeyJrdHkiOiJPS1AiLCJjcnYiOiJFZDI1NTE5Iiwia2lkIjoiU05JZ1ItTHZzSEUtNkhUUGxYYUpQVDVubHRZMFpqZlA0VkpTWEwzQ2ZkMCIsIngiOiJIVWM1ZHY1eFREV3VMVmZQcFdvVXBWTjZ1QTNJNzBsVzVnNEhoMG5VaDQ0In0&state=8faa6212-465f-4e3f-9a44-649d3d65845c&response_mode=direct_post&nonce=9a054852-46ab-4bbe-8fc1-b96882afcc4f&response_uri=http%3A%2F%2Forg.enterprise.localhost%3A3000%2Fv1%2Forg.tenant.verifier%2Fverifier2-service-api%2Fff4f0c86-56ce-4e4a-a137-dd5569049ff3%2Fresponse&dcql_query=%7B%22credentials%22%3A%5B%7B%22id%22%3A%22pid%22%2C%22format%22%3A%22dc%2Bsd-jwt%22%2C%22meta%22%3A%7B%22vct_values%22%3A%5B%22http%3A%2F%2Forg.enterprise.localhost%3A3000%2Fv1%2Fwaltid.issuer%2Fissuer-service-api%2Fopenid4vc%2Fdraft13%2Fidentity_credential%22%5D%7D%2C%22claims%22%3A%5B%7B%22path%22%3A%5B%22given_name%22%5D%7D%2C%7B%22path%22%3A%5B%22family_name%22%5D%7D%2C%7B%22path%22%3A%5B%22address%22%2C%22street_address%22%5D%7D%5D%7D%5D%7D&client_metadata=%7B%22client_name%22%3A%22walt.id+Enterprise+Verifier%22%2C%22logo_uri%22%3A%22https%3A%2F%2Fcdn.walt.id%2Fverifier%2Flogo.png%22%7D"
}

You will receive a response containing the following fields:

sessionId: String - The unique ID of this verification session. Use this to query the session status.
bootstrapAuthorizationRequestUrl: String - Shortened URL using request_uri by reference. Use this for QR codes to minimize QR code density.
fullAuthorizationRequestUrl: String - Complete URL with all parameters embedded. Use this if the wallet doesn't support request_uri (rare).

#Step 2: Generating the DC API Request

For the next step, take the sessionId and make the following request to get the DC API request URL.

CURL

curl -X 'GET' \
  ''http://localhost:7003/verification-session/{sessionId}/request' \
  -H 'accept: application/json'

Which will return the DC API request URL, which can be used with the Browser API. We recommend checking out our Digital Credential Button project, which provides a reference for how to invoke the Browser-based DC API.

{
  "digital": {
    "requests": [
      {
        "protocol": "openid4vp-v1-signed",
        "data": {
          "client_id": "x509_hash:abc-xyz-base64url-sha256-hash-of-der-x509-leaf",
          "expected_origins": [
            "https://digital-credentials.walt.id"
          ],
          "request": "eyJ0eXAiOiJvYXV0aC1hdXRoei1yZXErand0IiwiZXhwIjoxNzY0Nzc4NjE3LCJpYXQiOjE3NjQ3NzgzMTcsImFsZyI6IkVTMjU2IiwieDVjIjpbIk1JSUJWekNCL2FBREFnRUNBZ2dOS1pBdlVydGltekFLQmdncWhrak9QUVFEQWpBZk1SMHdHd1lEVlFRRERCUjJaWEpwWm1sbGNpNWxlR0Z0Y0d4bExtTnZiVEFlRncweU5URXdNVFF3TmpJME1qQmFGdzB5TmpFd01UUXdOakkwTWpCYU1COHhIVEFiQmdOVkJBTU1GSFpsY21sbWFXVnlMbVY0WVcxd2JHVXVZMjl0TUZrd0V3WUhLb1pJemowQ0FRWUlLb1pJemowREFRY0RRZ0FFRy9UZ0JjMEJrbU1pcGlRLzZna2FtSW4zbW1wN2hjVHJadXlyTFRta25QMVdSRXhsMWRoZEl4OS9rQWt1dWNlSTNUSGt4WHE3L3krc0J6SzBaUjdqUHFNak1DRXdId1lEVlIwUkJCZ3dGb0lVZG1WeWFXWnBaWEl1WlhoaGJYQnNaUzVqYjIwd0NnWUlLb1pJemowRUF3SURTUUF3UmdJaEFPdTBSR002QmpWUVVlcGVMQm9ndytaRDNNUTl2RnBwYlBJR01QanRuL3FkQWlFQXR0ZmRmeVhIZnpKMnRyK1Bjenlja3p2M05sTTQzNDYxY3ZQOTZzSXpPUUE9Il19.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.ESqmoJ_vpD-GQMSmw8CCdQWbiZQ9CBiuHnVi87DO3Jd94HPb48n-Zz9CwDw7R_ytd6_pPlZTUnpKLuVHMfWlog"
        }
      }
    ]
  }
}

#Step 3: Handling the response

Once the wallet presents the credential, you will receive a response from the DC API containing the verifiable presentation like so from the wallet

{
  "protocol": "openid4vp-v1-signed",
  "data": {
    "vp_token": {
      "my_mdl": [
        "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_ksMwHt7DjM6cLGE0wCgYIKoZIzj0EAwIweTELMAkGA1UEBhMCVVMxEzARBgNVBAgMCkNhbGlmb3JuaWExFjAUBgNVBAcMDU1vdW50YWluIFZpZXcxHDAaBgNVBAoME0RpZ2l0YWwgQ3JlZGVudGlhbHMxHzAdBgNVBAMMFmRpZ2l0YWxjcmVkZW50aWFscy5kZXYwHhcNMjUwMjE5MjMzMDE4WhcNMjYwMjE5MjMzMDE4WjB5MQswCQYDVQQGEwJVUzETMBEGA1UECAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzEcMBoGA1UECgwTRGlnaXRhbCBDcmVkZW50aWFsczEfMB0GA1UEAwwWZGlnaXRhbGNyZWRlbnRpYWxzLmRldjBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IABOt5Nivi1_OXw1AEfYPh42Is41VrNg9qaMdYuw3cavhsCa-aXV0NmTl2EsNaJ5GWmMoAD8ikwAFszYhIeNgF42mjgcwwgckwHwYDVR0jBBgwFoAUok_0idl8Ruhuo4bZR0jOzL7cz_UwHQYDVR0OBBYEFN_-aloS6cBixLyYpyXS2XD3emAoMDQGA1UdHwQtMCswKaAnoCWGI2h0dHBzOi8vZGlnaXRhbC1jcmVkZW50aWFscy5kZXYvY3JsMCoGA1UdEgQjMCGGH2h0dHBzOi8vZGlnaXRhbC1jcmVkZW50aWFscy5kZXYwDgYDVR0PAQH_BAQDAgeAMBUGA1UdJQEB_wQLMAkGByiBjF0FAQIwCgYIKoZIzj0EAwIDRwAwRAIgYcXL9XzB43vy4LEz2h8gMQRdcJtaIRQOemgwm8sHQucCIHCvouHEm_unjBXMCeUZ7QR_ympjGyHITw25_B9H9QsCWQOk2BhZA5-mZ3ZlcnNpb25jMS4wb2RpZ2VzdEFsZ29yaXRobWdTSEEtMjU2Z2RvY1R5cGV1b3JnLmlzby4xODAxMy41LjEubURMbHZhbHVlRGlnZXN0c6Fxb3JnLmlzby4xODAxMy41LjGxAFggng2tWJR7fp49froXSRnsklR_sI-cX_vtNAgkCpdH7KcBWCC0FPEWRP0z6_Rt-ttqzJN5g6hoLJ3nrVljFBcO7RybfwJYIO6B7hZWOTAt0Kz_o7zCJclTcb6SJr_404PWx8RAzjN_A1ggeLRVnN98xkCw3ysIv4PDTCAhZkTqgDSVi-jkN9poMYUEWCDowY3mzymtYR69jFIoHo-NrNdCCxD9k9OogqIHrU3m0QVYILN8AZMmJ9Qq9bwUbsVAQVUP-QtoPmlYdIBTmXJNbr1oBlggzqXSfF8t4hF5hU5wGmxZa0he4VTpAQOCeUTNKP5rA5wHWCATqvZD_qvPdBVcFyUxmIRAK3CgDFrAdzfLMkkRyIIDzAhYIKzeNnZGdWcMC2mXpck7pWMHiVOMDGqSA5M_1lfqO7-wCVggVOyCZq3s73xJMoLhL4b1zoa_hV_twW4xUtyyoWm98nMKWCAzTGC3kG1f25U5RLQUOPNZ1fslnEvfMeLrRXgj19yFxgtYII0QK_PhhkC_VYFaCysXkdtwBGJb6Z3I8fFufwgIGo2NDFggQHxV4YQJLdbpxcfZiPIuocbCZDozc1f0fe9m4-lwVnENWCCY0f4Pabks2V2efyNUpA-Bc0qSG88o0gYgg6mZ-d48ww5YIHDHCfY18n5O6_740xNe_5HMn7D0jHFFymsk5FCNRSQ2D1gg4Qu7JMWCmI1bO1L8kN59jpJyZ9QXNgsG2p679UzAomAQWCAbGPycoabYvTGW6hX0onS3jiCLdi874pBb-hzB1STJ4W1kZXZpY2VLZXlJbmZvoWlkZXZpY2VLZXmkAQIgASFYIEgd6IsLll1JJy7WL7pRu_fcGKaJ8xCKt6klhXBcQJ9PIlggni7iZtdNwuuORu3f_5AeypnVHIu_U5rm4FtrGy-YyIJsdmFsaWRpdHlJbmZvo2ZzaWduZWTAeBsyMDI1LTA5LTI5VDAwOjE5OjUzLjYwODQ3M1ppdmFsaWRGcm9twHgbMjAyNS0wOS0yOVQwMDoxOTo1My42MDg0OTFaanZhbGlkVW50aWzAeBsyMDM1LTA5LTE3VDAwOjE5OjUzLjYwODQ5MlpYQCm_oEaEsbGd7vTDkT1DyLfJ8AYw4AVYYH5mvypCWe09qV2-iLNWF_Q5QMUwOotaJrblStdSZQK-HQydqYXumaxsZGV2aWNlU2lnbmVkompuYW1lU3BhY2Vz2BhBoGpkZXZpY2VBdXRooW9kZXZpY2VTaWduYXR1cmWEQ6EBJqD2WEAsvLdoWQ6ZxizNT8YFz3Kl0nkZDPv1UGjMTDuvCJcH7QCetj6_obSYXIQik5bBY4Pw1CmEsOwMMccuCincIxkoZnN0YXR1cwA"
      ]
    }
  }
}

Which you pass to the following verifier endpoint to verify the credential and run any policies you have configured.

CURL

curl -X 'POST' \
  ''http://localhost:7003/verification-session/{sessionId}/response' \
  -H 'accept: application/json' \
  -d '
  "protocol": "openid4vp-v1-signed",
  "data": {
    "vp_token": {
      "my_mdl": [
        "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_ksMwHt7DjM6cLGE0wCgYIKoZIzj0EAwIweTELMAkGA1UEBhMCVVMxEzARBgNVBAgMCkNhbGlmb3JuaWExFjAUBgNVBAcMDU1vdW50YWluIFZpZXcxHDAaBgNVBAoME0RpZ2l0YWwgQ3JlZGVudGlhbHMxHzAdBgNVBAMMFmRpZ2l0YWxjcmVkZW50aWFscy5kZXYwHhcNMjUwMjE5MjMzMDE4WhcNMjYwMjE5MjMzMDE4WjB5MQswCQYDVQQGEwJVUzETMBEGA1UECAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzEcMBoGA1UECgwTRGlnaXRhbCBDcmVkZW50aWFsczEfMB0GA1UEAwwWZGlnaXRhbGNyZWRlbnRpYWxzLmRldjBZMBMGByqGSM49AgEGCCqGSM49AwEHA0IABOt5Nivi1_OXw1AEfYPh42Is41VrNg9qaMdYuw3cavhsCa-aXV0NmTl2EsNaJ5GWmMoAD8ikwAFszYhIeNgF42mjgcwwgckwHwYDVR0jBBgwFoAUok_0idl8Ruhuo4bZR0jOzL7cz_UwHQYDVR0OBBYEFN_-aloS6cBixLyYpyXS2XD3emAoMDQGA1UdHwQtMCswKaAnoCWGI2h0dHBzOi8vZGlnaXRhbC1jcmVkZW50aWFscy5kZXYvY3JsMCoGA1UdEgQjMCGGH2h0dHBzOi8vZGlnaXRhbC1jcmVkZW50aWFscy5kZXYwDgYDVR0PAQH_BAQDAgeAMBUGA1UdJQEB_wQLMAkGByiBjF0FAQIwCgYIKoZIzj0EAwIDRwAwRAIgYcXL9XzB43vy4LEz2h8gMQRdcJtaIRQOemgwm8sHQucCIHCvouHEm_unjBXMCeUZ7QR_ympjGyHITw25_B9H9QsCWQOk2BhZA5-mZ3ZlcnNpb25jMS4wb2RpZ2VzdEFsZ29yaXRobWdTSEEtMjU2Z2RvY1R5cGV1b3JnLmlzby4xODAxMy41LjEubURMbHZhbHVlRGlnZXN0c6Fxb3JnLmlzby4xODAxMy41LjGxAFggng2tWJR7fp49froXSRnsklR_sI-cX_vtNAgkCpdH7KcBWCC0FPEWRP0z6_Rt-ttqzJN5g6hoLJ3nrVljFBcO7RybfwJYIO6B7hZWOTAt0Kz_o7zCJclTcb6SJr_404PWx8RAzjN_A1ggeLRVnN98xkCw3ysIv4PDTCAhZkTqgDSVi-jkN9poMYUEWCDowY3mzymtYR69jFIoHo-NrNdCCxD9k9OogqIHrU3m0QVYILN8AZMmJ9Qq9bwUbsVAQVUP-QtoPmlYdIBTmXJNbr1oBlggzqXSfF8t4hF5hU5wGmxZa0he4VTpAQOCeUTNKP5rA5wHWCATqvZD_qvPdBVcFyUxmIRAK3CgDFrAdzfLMkkRyIIDzAhYIKzeNnZGdWcMC2mXpck7pWMHiVOMDGqSA5M_1lfqO7-wCVggVOyCZq3s73xJMoLhL4b1zoa_hV_twW4xUtyyoWm98nMKWCAzTGC3kG1f25U5RLQUOPNZ1fslnEvfMeLrRXgj19yFxgtYII0QK_PhhkC_VYFaCysXkdtwBGJb6Z3I8fFufwgIGo2NDFggQHxV4YQJLdbpxcfZiPIuocbCZDozc1f0fe9m4-lwVnENWCCY0f4Pabks2V2efyNUpA-Bc0qSG88o0gYgg6mZ-d48ww5YIHDHCfY18n5O6_740xNe_5HMn7D0jHFFymsk5FCNRSQ2D1gg4Qu7JMWCmI1bO1L8kN59jpJyZ9QXNgsG2p679UzAomAQWCAbGPycoabYvTGW6hX0onS3jiCLdi874pBb-hzB1STJ4W1kZXZpY2VLZXlJbmZvoWlkZXZpY2VLZXmkAQIgASFYIEgd6IsLll1JJy7WL7pRu_fcGKaJ8xCKt6klhXBcQJ9PIlggni7iZtdNwuuORu3f_5AeypnVHIu_U5rm4FtrGy-YyIJsdmFsaWRpdHlJbmZvo2ZzaWduZWTAeBsyMDI1LTA5LTI5VDAwOjE5OjUzLjYwODQ3M1ppdmFsaWRGcm9twHgbMjAyNS0wOS0yOVQwMDoxOTo1My42MDg0OTFaanZhbGlkVW50aWzAeBsyMDM1LTA5LTE3VDAwOjE5OjUzLjYwODQ5MlpYQCm_oEaEsbGd7vTDkT1DyLfJ8AYw4AVYYH5mvypCWe09qV2-iLNWF_Q5QMUwOotaJrblStdSZQK-HQydqYXumaxsZGV2aWNlU2lnbmVkompuYW1lU3BhY2Vz2BhBoGpkZXZpY2VBdXRooW9kZXZpY2VTaWduYXR1cmWEQ6EBJqD2WEAsvLdoWQ6ZxizNT8YFz3Kl0nkZDPv1UGjMTDuvCJcH7QCetj6_obSYXIQik5bBY4Pw1CmEsOwMMccuCincIxkoZnN0YXR1cwA"
      ]
    }
  }
}
'

#Validating the Verification Session

You can query the verification session to check if the user has presented their credential and whether validation succeeded.

CURL

Endpoint: GET /verification-session/{sessionId}/info | API Reference

#Example Request

curl -X 'GET' \
  'http://localhost:7003/verification-session/{sessionId}/info' \
  -H 'accept: application/json'

Path Parameters

sessionId: String (required) - The unique ID of the verification session returned when you created the session. Use this to query the current status and results.

#Example Response

The response contains the complete session information including setup, status, policy results, and presented credentials.

{
  "id": "4a803c4b-1dc3-4210-806d-3fb52f1780c8",
  "setup":{
  "flow_type": "dc_api",
  "core_flow": {
    "dcql_query": {
      "credentials": [
        {
          "id": "my_mdl",
          "format": "mso_mdoc",
          "meta": {
            "doctype_value": "org.iso.18013.5.1.mDL"
          },
          "claims": [
            {
              "path": [
                "org.iso.18013.5.1",
                "family_name"
              ]
            },
            {
              "path": [
                "org.iso.18013.5.1",
                "given_name"
              ]
            },
            {
              "path": [
                "org.iso.18013.5.1",
                "age_over_21"
              ]
            }
          ]
        }
      ]
    },
    "signed_request": true,
    "encrypted_response": true,
    "clientId": "x509_hash:abc-xyz-base64url-sha256-hash-of-der-x509-leaf",
    "key": {
      "type": "jwk",
      "jwk": {
        "kty": "EC",
        "d": "AEb4k1BeTR9xt2NxYZggdzkFLLUkhyyWvyUOq3qSiwA",
        "crv": "P-256",
        "kid": "_nd-T2YRYLSmuKkJZlRI641zrCIJLTpiHeqMwXuvdug",
        "x": "G_TgBc0BkmMipiQ_6gkamIn3mmp7hcTrZuyrLTmknP0",
        "y": "VkRMZdXYXSMff5AJLrnHiN0x5MV6u_8vrAcytGUe4z4"
      }
    }
  },
  "expectedOrigins": [
    "http://localhost:7003"
  ]
},
  "creationDate": "2026-05-18T07:48:39.335523256Z",
  "expirationDate": "2026-05-18T07:53:39.335523256Z",
  "retentionDate": "2036-05-18T07:48:39.335523256Z",
  "status": "SUCCESSFUL",
  "attempted": true,
  "reattemptable": true,
  "bootstrapAuthorizationRequest": {
    "client_id": "verifier2",
    "request_uri": "https://575e-2a02-8388-17c1-5580-b97f-5031-3eee-c8a4.ngrok-free.app/verification-session/4a803c4b-1dc3-4210-806d-3fb52f1780c8/request"
  },
  "bootstrapAuthorizationRequestUrl": "openid4vp://authorize?client_id=verifier2&request_uri=https%3A%2F%2F575e-2a02-8388-17c1-5580-b97f-5031-3eee-c8a4.ngrok-free.app%2Fverification-session%2F4a803c4b-1dc3-4210-806d-3fb52f1780c8%2Frequest",
  "authorizationRequest": {
    "response_type": "vp_token",
    "client_id": "verifier2",
    "state": "da82aed7-ea36-4303-9c4a-3ded03cdedb4",
    "response_mode": "direct_post",
    "nonce": "74b0efc4-331c-488f-9489-7ce72b1c698f",
    "response_uri": "https://575e-2a02-8388-17c1-5580-b97f-5031-3eee-c8a4.ngrok-free.app/verification-session/4a803c4b-1dc3-4210-806d-3fb52f1780c8/response",
    "dcql_query": {
      "credentials": [
        {
          "id": "credential_1",
          "format": "mso_mdoc",
          "multiple": false,
          "meta": {
            "doctype_value": "org.iso.18013.5.1.mDL",
            "format": "mso_mdoc"
          },
          "require_cryptographic_holder_binding": true,
          "claims": [
            {
              "path": [
                "org.iso.18013.5.1",
                "family_name"
              ]
            },
            {
              "path": [
                "org.iso.18013.5.1",
                "given_name"
              ]
            },
            {
              "path": [
                "org.iso.18013.5.1",
                "birth_date"
              ]
            }
          ]
        }
      ]
    },
    "client_metadata": {
      "vp_formats_supported": {
        "mso_mdoc": {
          "issuerauth_alg_values": [
            -7,
            -9,
            -50
          ],
          "deviceauth_alg_values": [
            -7,
            -9,
            -50,
            -65537
          ]
        }
      },
      "client_name": "Verifier2",
      "logo_uri": "https://images.squarespace-cdn.com/content",
      "tos_uri": "https://example.com/terms",
      "policy_uri": "https://example.com/privacy",
      "client_uri": "https://verifier.example.com",
      "client_name#fr-FR": "Vérificateur2",
      "logo_uri#fr-FR": "https://example.com/logo-fr.png",
      "tos_uri#fr-FR": "https://example.com/terms-fr",
      "policy_uri#fr-FR": "https://example.com/privacy-fr",
      "client_uri#fr-FR": "https://verifier.example.com/fr"
    }
  },
  "authorizationRequestUrl": "openid4vp://authorize?response_type=vp_token&client_id=verifier2&state=da82aed7-ea36-4303-9c4a-3ded03cdedb4&response_mode=direct_post&nonce=74b0efc4-331c-488f-9489-7ce72b1c698f&response_uri=https%3A%2F%2F575e-2a02-8388-17c1-5580-b97f-5031-3eee-c8a4.ngrok-free.app%2Fverification-session%2F4a803c4b-1dc3-4210-806d-3fb52f1780c8%2Fresponse&dcql_query=%7B%22credentials%22%3A%5B%7B%22id%22%3A%22credential_1%22%2C%22format%22%3A%22mso_mdoc%22%2C%22meta%22%3A%7B%22doctype_value%22%3A%22org.iso.18013.5.1.mDL%22%7D%2C%22claims%22%3A%5B%7B%22path%22%3A%5B%22org.iso.18013.5.1%22%2C%22family_name%22%5D%7D%2C%7B%22path%22%3A%5B%22org.iso.18013.5.1%22%2C%22given_name%22%5D%7D%2C%7B%22path%22%3A%5B%22org.iso.18013.5.1%22%2C%22birth_date%22%5D%7D%5D%7D%5D%7D&client_metadata=%7B%22vp_formats_supported%22%3A%7B%22mso_mdoc%22%3A%7B%22issuerauth_alg_values%22%3A%5B-7%2C-9%2C-50%5D%2C%22deviceauth_alg_values%22%3A%5B-7%2C-9%2C-50%2C-65537%5D%7D%7D%2C%22client_name%22%3A%22Verifier2%22%2C%22logo_uri%22%3A%22https%3A%2F%2Fimages.squarespace-cdn.com%2Fcontent%22%2C%22tos_uri%22%3A%22https%3A%2F%2Fexample.com%2Fterms%22%2C%22policy_uri%22%3A%22https%3A%2F%2Fexample.com%2Fprivacy%22%2C%22client_uri%22%3A%22https%3A%2F%2Fverifier.example.com%22%2C%22client_name%23fr-FR%22%3A%22V%C3%A9rificateur2%22%2C%22logo_uri%23fr-FR%22%3A%22https%3A%2F%2Fexample.com%2Flogo-fr.png%22%2C%22tos_uri%23fr-FR%22%3A%22https%3A%2F%2Fexample.com%2Fterms-fr%22%2C%22policy_uri%23fr-FR%22%3A%22https%3A%2F%2Fexample.com%2Fprivacy-fr%22%2C%22client_uri%23fr-FR%22%3A%22https%3A%2F%2Fverifier.example.com%2Ffr%22%7D",
  "requestMode": "REQUEST_URI",
  "policies": {
    "vp_policies": {
      "jwt_vc_json": [
        "jwt_vc_json/audience-check",
        "jwt_vc_json/nonce-check",
        "jwt_vc_json/envelope_signature"
      ],
      "dc+sd-jwt": [
        "dc+sd-jwt/audience-check",
        "dc+sd-jwt/kb-jwt_signature",
        "dc+sd-jwt/nonce-check",
        "dc+sd-jwt/sd_hash-check"
      ],
      "mso_mdoc": [
        "mso_mdoc/device-auth",
        "mso_mdoc/device_key_auth",
        "mso_mdoc/issuer_auth",
        "mso_mdoc/issuer_signed_integrity",
        "mso_mdoc/mso"
      ]
    },
    "vc_policies": [
      {
        "policy": "signature",
        "id": "signature"
      }
    ]
  },
  "policy_results": {
    "vp_policies": {
      "credential_1": {
        "mso_mdoc/device-auth": {
          "policy_executed": {
            "policy": "mso_mdoc/device-auth",
            "id": "mso_mdoc/device-auth",
            "description": "Verify device authentication"
          },
          "success": true,
          "results": {
            "device_public_jwk": {
              "kty": "OKP",
              "crv": "Ed25519",
              "x": "jxQwRV7tHc3W_JkKVsDZL7_DtP4zyNJtQ4Yr1z7-Md4"
            },
            "device_auth_bytes_hex": "d8185868847444657669636541757468656e7469636174696f6e83f6f682714f70656e494434565048616e646f7665725820bdb670da65dae163a8fe31c591c82da53c6da1b38232c8f4d3657405e4220a43756f72672e69736f2e31383031332e352e312e6d444cd81841a0"
          },
          "errors": [],
          "execution_time": "PT0.002658542S"
        },
        "mso_mdoc/device_key_auth": {
          "policy_executed": {
            "policy": "mso_mdoc/device_key_auth",
            "id": "mso_mdoc/device_key_auth",
            "description": "Verify holder-verified data"
          },
          "success": true,
          "results": {
            "empty_device_signed_namespaces": true
          },
          "errors": [],
          "execution_time": "PT0.000800334S"
        },
        "mso_mdoc/issuer_auth": {
          "policy_executed": {
            "policy": "mso_mdoc/issuer_auth",
            "id": "mso_mdoc/issuer_auth",
            "description": "Verify issuer authentication"
          },
          "success": true,
          "results": {
            "certificate_chain": [
              "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"
            ],
            "signer_pem": "-----BEGIN CERTIFICATE-----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\r\neIKTeCNxH5vJCeP4iGFDbaKWuIIGbO1/32bwV/CvOQ==\n-----END CERTIFICATE-----",
            "signer_jwk": {
              "kty": "EC",
              "crv": "P-256",
              "x": "yfmbtCsdQQ_4EDPg0Gt98gJYk1zkNOpGM9bHYEi49mc",
              "y": "MBCAsid4kn7x6KP31bwzRp080D6XlbR2Gxmmc77CKPk"
            }
          },
          "errors": [],
          "execution_time": "PT0.004215542S"
        },
        "mso_mdoc/issuer_signed_integrity": {
          "policy_executed": {
            "policy": "mso_mdoc/issuer_signed_integrity",
            "id": "mso_mdoc/issuer_signed_integrity",
            "description": "Verify issuer-verified data integrity"
          },
          "success": true,
          "results": {
            "namespace": {
              "org.iso.18013.5.1": [
                {
                  "id": "family_name",
                  "digest_id": 0,
                  "value": "Doe",
                  "value_type": "CborString",
                  "random_hex": "736b060d21fa4e37f17b0b0568285add9d064ba883eb6c35",
                  "serialized_hex": "a4686469676573744944006672616e646f6d5818736b060d21fa4e37f17b0b0568285add9d064ba883eb6c3571656c656d656e744964656e7469666965726b66616d696c795f6e616d656c656c656d656e7456616c756563446f65"
                },
                {
                  "id": "given_name",
                  "digest_id": 1,
                  "value": "John",
                  "value_type": "CborString",
                  "random_hex": "312e734c986fdf279c7d75130b0da4794d16d44bbb3cfd61",
                  "serialized_hex": "a4686469676573744944016672616e646f6d5818312e734c986fdf279c7d75130b0da4794d16d44bbb3cfd6171656c656d656e744964656e7469666965726a676976656e5f6e616d656c656c656d656e7456616c7565644a6f686e"
                },
                {
                  "id": "birth_date",
                  "digest_id": 2,
                  "value": "1986-03-22",
                  "value_type": "CborString",
                  "random_hex": "e6864d13d13a9fb1a7fccb729a6330dec975bac5e79fa023",
                  "serialized_hex": "a4686469676573744944026672616e646f6d5818e6864d13d13a9fb1a7fccb729a6330dec975bac5e79fa02371656c656d656e744964656e7469666965726a62697274685f646174656c656c656d656e7456616c7565d903ec6a313938362d30332d3232"
                }
              ]
            },
            "matching_digest": {
              "org.iso.18013.5.1": [
                "family_name",
                "given_name",
                "birth_date"
              ]
            }
          },
          "errors": [],
          "execution_time": "PT0.003104834S"
        },
        "mso_mdoc/mso": {
          "policy_executed": {
            "policy": "mso_mdoc/mso",
            "id": "mso_mdoc/mso",
            "description": "Verify MSO"
          },
          "success": true,
          "results": {
            "signed": "2026-05-18T07:48:27.870905006Z",
            "valid_from": "2027-05-18T07:48:27.852289522Z"
          },
          "errors": [],
          "execution_time": "PT0.004245834S"
        }
      }
    },
    "vc_policies": [
      {
        "policy": {
          "policy": "signature",
          "id": "signature"
        },
        "success": true,
        "result": {
          "verification_result": true,
          "signed_credential": "o2d2ZXJzaW9uYzEuMGlkb2N1bWVudHOBo2dkb2NUeXBldW9yZy5pc28uMTgwMTMuNS4xLm1ETGxpc3N1ZXJTaWduZWSiam5hbWVTcGFjZXOhcW9yZy5pc28uMTgwMTMuNS4xg9gYWFukaGRpZ2VzdElEAGZyYW5kb21YGHNrBg0h-k438XsLBWgoWt2dBkuog-tsNXFlbGVtZW50SWRlbnRpZmllcmtmYW1pbHlfbmFtZWxlbGVtZW50VmFsdWVjRG9l2BhYW6RoZGlnZXN0SUQBZnJhbmRvbVgYMS5zTJhv3yecfXUTCw2keU0W1Eu7PP1hcWVsZW1lbnRJZGVudGlmaWVyamdpdmVuX25hbWVsZWxlbWVudFZhbHVlZEpvaG7YGFhkpGhkaWdlc3RJRAJmcmFuZG9tWBjmhk0T0Tqfsaf8y3KaYzDeyXW6xeefoCNxZWxlbWVudElkZW50aWZpZXJqYmlydGhfZGF0ZWxlbGVtZW50VmFsdWXZA-xqMTk4Ni0wMy0yMmppc3N1ZXJBdXRohEOhASahGCFZAi8wggIrMIIB0aADAgECAhRED-gfURxpHvIfRtUe91K73mZpljAKBggqhkjOPQQDAjAsMQswCQYDVQQGEwJBVDEdMBsGA1UEAwwUbURMIElzc3VlciBJQUNBIFJvb3QwHhcNMjYwNTE4MDYxOTI2WhcNMjcwODE4MDYxOTI2WjAyMQswCQYDVQQGEwJBVDEjMCEGA1UEAwwabURMIElzc3VlciBEb2N1bWVudCBTaWduZXIwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAATJ-Zu0Kx1BD_gQM-DQa33yAliTXOQ06kYz1sdgSLj2ZzAQgLIneJJ-8eij99W8M0adPNA-l5W0dhsZpnO-wij5o4HKMIHHMB8GA1UdIwQYMBaAFHKy929J0Lyz3XDMLWSZozeAAujjMB0GA1UdDgQWBBRcZNa5S0U4sUU0Uls5Qu74-EGCfTAOBgNVHQ8BAf8EBAMCB4AwJwYDVR0SBCAwHoYcaHR0cHM6Ly9pYWNhLnRlbmFudDEud2FsdC5pZDAVBgNVHSUBAf8ECzAJBgcogYxdBQECMDUGA1UdHwQuMCwwKqAooCaGJGh0dHBzOi8vY3JsLnRlbmFudDEud2FsdC5pZC9pYWNhLmNybDAKBggqhkjOPQQDAgNIADBFAiAGx-rtONQdU9NSJNW0IMpBEJ1fOnr95HOo4ofthoij1wIhAOt4gpN4I3Efm8kJ4_iIYUNtopa4ggZs7X_fZvBX8K85WQKV2BhZApCmZ3ZlcnNpb25jMS4wb2RpZ2VzdEFsZ29yaXRobWdTSEEtMjU2bHZhbHVlRGlnZXN0c6Fxb3JnLmlzby4xODAxMy41LjGqAFgglIt2JC3rDbrr6azX5GWPMGyGqyD5gTnyASk37pDhZQYBWCCMQ7Ph45igVnLbvCtlSqLPlaMTXSk2kLoy4Mxn1x37kwJYIOjGjCHBlfvZi74lANZXAWt_FDdDf6NU591eYMGbFladA1ggcdl99l7hzcOFDYUeghGX0gDXYYgEN7WyRFrgSSFVvv4EWCCKwt6H37DEK8kJFcs__AiFZzLDc-4GPFKuYYEJzv_X1QVYIMybLDIPi3G7go7Bq4ggn0UYXEpmKMazxXZH25mnl0RQBlggofgVz7C7i4z0Iz8zrEPhNBRMlZcr4EhqQCR2pjo3qsoHWCDaJ4DszfMYhI0HfyOcSgMEgx_K12dx34khKW6ohKRhZghYIPTE7TeLsXVDSX9l3DTPB4zDhzF1WDTmCw3Ecxv1deNJCVggqueG-PUmdP8sJdsQ6XbuByQzAZXoRdwB-7dn0hxtkCdtZGV2aWNlS2V5SW5mb6FpZGV2aWNlS2V5owEBIAYhWCCPFDBFXu0dzdb8mQpWwNkvv8O0_jPI0m1DhivXPv4x3mdkb2NUeXBldW9yZy5pc28uMTgwMTMuNS4xLm1ETGx2YWxpZGl0eUluZm-jZnNpZ25lZMB4HjIwMjYtMDUtMThUMDc6NDg6MjcuODcwOTA1MDA2Wml2YWxpZEZyb23AeB4yMDI2LTA1LTE4VDA3OjQ4OjI3Ljg3MDkwNTAwNlpqdmFsaWRVbnRpbMB4HjIwMjctMDUtMThUMDc6NDg6MjcuODUyMjg5NTIyWlhAmRC5DQjAwaNaozniXwKmOoMscEyNwA65Y31zyoCJpiGiZxs-fk9bcsZnrDSu5ATPVEIKrf_4hjY8ODArK76q2WxkZXZpY2VTaWduZWSiam5hbWVTcGFjZXPYGEGgamRldmljZUF1dGihb2RldmljZVNpZ25hdHVyZYRDoQEnoPZYQGQUayxOBk2Wp7g7UhumPbtFSQ5h1h4jArb60UGZOsFMvG6MXHBBPd4JdOX40auhbmKNmBjinPfw96QN9XfV-Q9mc3RhdHVzAA",
          "credential_signature": {
            "type": "signature-cose",
            "signerKey": {
              "type": "jwk",
              "jwk": {
                "kty": "EC",
                "crv": "P-256",
                "x": "yfmbtCsdQQ_4EDPg0Gt98gJYk1zkNOpGM9bHYEi49mc",
                "y": "MBCAsid4kn7x6KP31bwzRp080D6XlbR2Gxmmc77CKPk"
              }
            },
            "x5cList": [
              "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"
            ]
          },
          "verified_data": {
            "docType": "org.iso.18013.5.1.mDL",
            "org.iso.18013.5.1": {
              "family_name": "Doe",
              "given_name": "John",
              "birth_date": "1986-03-22"
            }
          },
          "successful_issuer_public_key": {
            "kty": "EC",
            "crv": "P-256",
            "x": "yfmbtCsdQQ_4EDPg0Gt98gJYk1zkNOpGM9bHYEi49mc",
            "y": "MBCAsid4kn7x6KP31bwzRp080D6XlbR2Gxmmc77CKPk"
          },
          "successful_issuer_public_key_id": "FOWc2X5ZSle6u66RwXQoVUwm86vnTnbZ61s_Golepz0"
        }
      }
    ],
    "specific_vc_policies": {},
    "overallSuccess": true
  },
  "presentation_validation_results": {
    "credential_1": {
      "mso_mdoc/device-auth": {
        "policy_executed": {
          "policy": "mso_mdoc/device-auth",
          "id": "mso_mdoc/device-auth",
          "description": "Verify device authentication"
        },
        "success": true,
        "results": {
          "device_public_jwk": {
            "kty": "OKP",
            "crv": "Ed25519",
            "x": "jxQwRV7tHc3W_JkKVsDZL7_DtP4zyNJtQ4Yr1z7-Md4"
          },
          "device_auth_bytes_hex": "d8185868847444657669636541757468656e7469636174696f6e83f6f682714f70656e494434565048616e646f7665725820bdb670da65dae163a8fe31c591c82da53c6da1b38232c8f4d3657405e4220a43756f72672e69736f2e31383031332e352e312e6d444cd81841a0"
        },
        "errors": [],
        "execution_time": "PT0.002658542S"
      },
      "mso_mdoc/device_key_auth": {
        "policy_executed": {
          "policy": "mso_mdoc/device_key_auth",
          "id": "mso_mdoc/device_key_auth",
          "description": "Verify holder-verified data"
        },
        "success": true,
        "results": {
          "empty_device_signed_namespaces": true
        },
        "errors": [],
        "execution_time": "PT0.000800334S"
      },
      "mso_mdoc/issuer_auth": {
        "policy_executed": {
          "policy": "mso_mdoc/issuer_auth",
          "id": "mso_mdoc/issuer_auth",
          "description": "Verify issuer authentication"
        },
        "success": true,
        "results": {
          "certificate_chain": [
            "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"
          ],
          "signer_pem": "-----BEGIN CERTIFICATE-----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\r\neIKTeCNxH5vJCeP4iGFDbaKWuIIGbO1/32bwV/CvOQ==\n-----END CERTIFICATE-----",
          "signer_jwk": {
            "kty": "EC",
            "crv": "P-256",
            "x": "yfmbtCsdQQ_4EDPg0Gt98gJYk1zkNOpGM9bHYEi49mc",
            "y": "MBCAsid4kn7x6KP31bwzRp080D6XlbR2Gxmmc77CKPk"
          }
        },
        "errors": [],
        "execution_time": "PT0.004215542S"
      },
      "mso_mdoc/issuer_signed_integrity": {
        "policy_executed": {
          "policy": "mso_mdoc/issuer_signed_integrity",
          "id": "mso_mdoc/issuer_signed_integrity",
          "description": "Verify issuer-verified data integrity"
        },
        "success": true,
        "results": {
          "namespace": {
            "org.iso.18013.5.1": [
              {
                "id": "family_name",
                "digest_id": 0,
                "value": "Doe",
                "value_type": "CborString",
                "random_hex": "736b060d21fa4e37f17b0b0568285add9d064ba883eb6c35",
                "serialized_hex": "a4686469676573744944006672616e646f6d5818736b060d21fa4e37f17b0b0568285add9d064ba883eb6c3571656c656d656e744964656e7469666965726b66616d696c795f6e616d656c656c656d656e7456616c756563446f65"
              },
              {
                "id": "given_name",
                "digest_id": 1,
                "value": "John",
                "value_type": "CborString",
                "random_hex": "312e734c986fdf279c7d75130b0da4794d16d44bbb3cfd61",
                "serialized_hex": "a4686469676573744944016672616e646f6d5818312e734c986fdf279c7d75130b0da4794d16d44bbb3cfd6171656c656d656e744964656e7469666965726a676976656e5f6e616d656c656c656d656e7456616c7565644a6f686e"
              },
              {
                "id": "birth_date",
                "digest_id": 2,
                "value": "1986-03-22",
                "value_type": "CborString",
                "random_hex": "e6864d13d13a9fb1a7fccb729a6330dec975bac5e79fa023",
                "serialized_hex": "a4686469676573744944026672616e646f6d5818e6864d13d13a9fb1a7fccb729a6330dec975bac5e79fa02371656c656d656e744964656e7469666965726a62697274685f646174656c656c656d656e7456616c7565d903ec6a313938362d30332d3232"
              }
            ]
          },
          "matching_digest": {
            "org.iso.18013.5.1": [
              "family_name",
              "given_name",
              "birth_date"
            ]
          }
        },
        "errors": [],
        "execution_time": "PT0.003104834S"
      },
      "mso_mdoc/mso": {
        "policy_executed": {
          "policy": "mso_mdoc/mso",
          "id": "mso_mdoc/mso",
          "description": "Verify MSO"
        },
        "success": true,
        "results": {
          "signed": "2026-05-18T07:48:27.870905006Z",
          "valid_from": "2027-05-18T07:48:27.852289522Z"
        },
        "errors": [],
        "execution_time": "PT0.004245834S"
      }
    }
  },
  "presented_raw_data": {
    "vpToken": {
      "credential_1": [
        "o2d2ZXJzaW9uYzEuMGlkb2N1bWVudHOBo2dkb2NUeXBldW9yZy5pc28uMTgwMTMuNS4xLm1ETGxpc3N1ZXJTaWduZWSiam5hbWVTcGFjZXOhcW9yZy5pc28uMTgwMTMuNS4xg9gYWFukaGRpZ2VzdElEAGZyYW5kb21YGHNrBg0h-k438XsLBWgoWt2dBkuog-tsNXFlbGVtZW50SWRlbnRpZmllcmtmYW1pbHlfbmFtZWxlbGVtZW50VmFsdWVjRG9l2BhYW6RoZGlnZXN0SUQBZnJhbmRvbVgYMS5zTJhv3yecfXUTCw2keU0W1Eu7PP1hcWVsZW1lbnRJZGVudGlmaWVyamdpdmVuX25hbWVsZWxlbWVudFZhbHVlZEpvaG7YGFhkpGhkaWdlc3RJRAJmcmFuZG9tWBjmhk0T0Tqfsaf8y3KaYzDeyXW6xeefoCNxZWxlbWVudElkZW50aWZpZXJqYmlydGhfZGF0ZWxlbGVtZW50VmFsdWXZA-xqMTk4Ni0wMy0yMmppc3N1ZXJBdXRohEOhASahGCFZAi8wggIrMIIB0aADAgECAhRED-gfURxpHvIfRtUe91K73mZpljAKBggqhkjOPQQDAjAsMQswCQYDVQQGEwJBVDEdMBsGA1UEAwwUbURMIElzc3VlciBJQUNBIFJvb3QwHhcNMjYwNTE4MDYxOTI2WhcNMjcwODE4MDYxOTI2WjAyMQswCQYDVQQGEwJBVDEjMCEGA1UEAwwabURMIElzc3VlciBEb2N1bWVudCBTaWduZXIwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAATJ-Zu0Kx1BD_gQM-DQa33yAliTXOQ06kYz1sdgSLj2ZzAQgLIneJJ-8eij99W8M0adPNA-l5W0dhsZpnO-wij5o4HKMIHHMB8GA1UdIwQYMBaAFHKy929J0Lyz3XDMLWSZozeAAujjMB0GA1UdDgQWBBRcZNa5S0U4sUU0Uls5Qu74-EGCfTAOBgNVHQ8BAf8EBAMCB4AwJwYDVR0SBCAwHoYcaHR0cHM6Ly9pYWNhLnRlbmFudDEud2FsdC5pZDAVBgNVHSUBAf8ECzAJBgcogYxdBQECMDUGA1UdHwQuMCwwKqAooCaGJGh0dHBzOi8vY3JsLnRlbmFudDEud2FsdC5pZC9pYWNhLmNybDAKBggqhkjOPQQDAgNIADBFAiAGx-rtONQdU9NSJNW0IMpBEJ1fOnr95HOo4ofthoij1wIhAOt4gpN4I3Efm8kJ4_iIYUNtopa4ggZs7X_fZvBX8K85WQKV2BhZApCmZ3ZlcnNpb25jMS4wb2RpZ2VzdEFsZ29yaXRobWdTSEEtMjU2bHZhbHVlRGlnZXN0c6Fxb3JnLmlzby4xODAxMy41LjGqAFgglIt2JC3rDbrr6azX5GWPMGyGqyD5gTnyASk37pDhZQYBWCCMQ7Ph45igVnLbvCtlSqLPlaMTXSk2kLoy4Mxn1x37kwJYIOjGjCHBlfvZi74lANZXAWt_FDdDf6NU591eYMGbFladA1ggcdl99l7hzcOFDYUeghGX0gDXYYgEN7WyRFrgSSFVvv4EWCCKwt6H37DEK8kJFcs__AiFZzLDc-4GPFKuYYEJzv_X1QVYIMybLDIPi3G7go7Bq4ggn0UYXEpmKMazxXZH25mnl0RQBlggofgVz7C7i4z0Iz8zrEPhNBRMlZcr4EhqQCR2pjo3qsoHWCDaJ4DszfMYhI0HfyOcSgMEgx_K12dx34khKW6ohKRhZghYIPTE7TeLsXVDSX9l3DTPB4zDhzF1WDTmCw3Ecxv1deNJCVggqueG-PUmdP8sJdsQ6XbuByQzAZXoRdwB-7dn0hxtkCdtZGV2aWNlS2V5SW5mb6FpZGV2aWNlS2V5owEBIAYhWCCPFDBFXu0dzdb8mQpWwNkvv8O0_jPI0m1DhivXPv4x3mdkb2NUeXBldW9yZy5pc28uMTgwMTMuNS4xLm1ETGx2YWxpZGl0eUluZm-jZnNpZ25lZMB4HjIwMjYtMDUtMThUMDc6NDg6MjcuODcwOTA1MDA2Wml2YWxpZEZyb23AeB4yMDI2LTA1LTE4VDA3OjQ4OjI3Ljg3MDkwNTAwNlpqdmFsaWRVbnRpbMB4HjIwMjctMDUtMThUMDc6NDg6MjcuODUyMjg5NTIyWlhAmRC5DQjAwaNaozniXwKmOoMscEyNwA65Y31zyoCJpiGiZxs-fk9bcsZnrDSu5ATPVEIKrf_4hjY8ODArK76q2WxkZXZpY2VTaWduZWSiam5hbWVTcGFjZXPYGEGgamRldmljZUF1dGihb2RldmljZVNpZ25hdHVyZYRDoQEnoPZYQGQUayxOBk2Wp7g7UhumPbtFSQ5h1h4jArb60UGZOsFMvG6MXHBBPd4JdOX40auhbmKNmBjinPfw96QN9XfV-Q9mc3RhdHVzAA"
      ]
    },
    "state": "da82aed7-ea36-4303-9c4a-3ded03cdedb4"
  },
  "presented_presentations": {
    "credential_1": {
      "type": "mso_mdoc",
      "format": "mso_mdoc",
      "mdoc": {
        "credentialData": {
          "docType": "org.iso.18013.5.1.mDL",
          "org.iso.18013.5.1": {
            "family_name": "Doe",
            "given_name": "John",
            "birth_date": "1986-03-22"
          }
        },
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            }
          },
          "deviceKeyInfo": {
            "deviceKey": {
              "kty": 1,
              "crv": 6,
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            }
          },
          "docType": "org.iso.18013.5.1.mDL",
          "validityInfo": {
            "signed": "2026-05-18T07:48:27.870905006Z",
            "validFrom": "2026-05-18T07:48:27.870905006Z",
            "validUntil": "2027-05-18T07:48:27.852289522Z"
          }
        }
      }
    ]
  }
}

Key Response Fields:

id: String - The verification session ID
setup: Object - The complete session configuration that was used to create this verification session (the VerificationSessionSetup from the create request)
creationDate: String - ISO 8601 timestamp when the session was created
expirationDate: String - ISO 8601 timestamp when the session expires (default: 10 minutes after creation). Session will expire if left unused (no presentation pushed). Once a presentation is received, the session is no longer eligible for expiry.
status: String - The current status of the verification session. Possible values:
- "UNKNOWN" — Session ended up in unknown flow (should be avoided)
- "ACTIVE" — Session was created and is active (can be used)
- "UNUSED" — Session was not used yet, but not expired (can be used)
- "IN_USE" — AuthorizationRequest was requested by wallet
- "VALIDATING_RECEIVED_REQUEST" — Checking if received presentation will be processed
- "PROCESSING_FLOW" — Received presentation is being processed (validation + policy execution)
- "EXPIRED" — Verification request expired without being utilized
- "SUCCESSFUL" — Verification completed fully successfully (all validation & policies passed)
- "FAILED" — Verification was unsuccessful (presentation validation or policies failed)
attempted: Boolean - Whether the wallet has attempted to respond to the verification request
reattemptable: Boolean - Whether the user can retry this verification session if it failed
policies: Object - The policies configured for this session:
- vp_policies: Object (optional) - Policies to run on presentations
- vc_policies: Array (optional) - Policies to run on credentials
- specific_vc_policies: Object (optional) - Policies to run on specific credential IDs
policy_results: Object (optional) - Detailed results for all policies applied to the verification (only present after presentation is received):
- vp_policies: Object - Results for presentation-level policies (audience check, nonce check, envelope signature), organized by credential ID. Structure: { "credential_id": { "policy_name": { ... } } }
- vc_policies: Array - Results for credential-level policies (signature, expiry, schema, etc.). Each item contains policy, success, and result.
- specific_vc_policies: Object - Results for credential-specific policies
- overallSuccess: Boolean (computed) - Whether all policies passed
redirects: Object (optional) - Success and error redirect URIs if configured

Instead of polling the session status, you can use callbacks or Server Sent Events (SSE) to be notified when the verification completes. See Callbacks & SSE for details.

#Understanding Flow Types and Core Concepts

Now that you've seen verification in action, let's understand the underlying structure.

#Verification Session Structure

A VerificationSession defines the full lifecycle: authorization request → user presentation → policy validation → final result.

Every verification request follows this structure:

{
  "flow_type": "cross_device | same_device | dc_api",
  "core_flow": { /* common to all flows */ },
  "url_config": { /* specific to cross_device and same_device */ },
  "redirects": { /* optional */ }
}

Why this structure?

flow_type determines how the credential request is delivered (QR code vs deep link vs browser API)
core_flow contains the credential query and policies (same regardless of delivery method)
url_config and redirects are flow-specific attributes

This separation makes it easy to switch between flows without changing your credential requirements.

#Flow Type Comparison

Flow Type	Use Case	Required Attributes	User Experience
`cross_device`	User scans QR code from desktop	None beyond core flow	Desktop shows QR → User scans with phone → Phone wallet opens
`same_device`	User clicks link on mobile	`redirects` (success/error URLs)	Browser redirects to wallet → Wallet opens → User returns to browser
`dc_api`	Browser-native credential exchange	`expectedOrigins` (array of allowed origins)	Browser shows native credential picker → User selects → Instant return

#Configuration Defaults

Many session parameters can be configured globally in verifier-service.conf and overridden per-request when needed.

Parameter	Config File Location	Request Override Path	When to Override
`urlPrefix`	`verifier-service.conf` → `urlPrefix`	`url_config.url_prefix`	Testing with ngrok, different environments per session
`urlHost`	`verifier-service.conf` → `urlHost`	`url_config.url_host`	Custom authorization endpoints, conformance testing
`clientId`	`verifier-service.conf` → `clientId`	`core_flow.clientId`	Different verifier identities per use case
`clientMetadata`	`verifier-service.conf` → `clientMetadata`	`core_flow.client_metadata`	Session-specific branding, multi-tenant scenarios
Signing key	`verifier-service.conf` → `key`	`core_flow.key`	Different signing keys per session (advanced)
Certificate chain	`verifier-service.conf` → `x5c`	`core_flow.x5c`	Different certificate chains per session (x509 flows)

Best Practice: Set defaults in verifier-service.conf for your primary use case, and override per-request only when necessary. This keeps your API calls clean and reduces duplication.

See Verifier Service Configuration for detailed configuration documentation.

#Additional

You can find more information on how to configure different DC API request flows, and how to interact with the Browser-based DC API in our Digital Credential Button project.

#Next Steps

Apply custom policies — See Policies for validation rules beyond signature verification
Set up notifications — Use Callbacks & SSE instead of polling for session status
Verify other credential types — Try W3C VC or SD-JWT VC

Last updated on May 20, 2026

Verifying Mobile Driver's Licenses (mDL, ISO/IEC 18013-5) via OID4VP Overview