VerifiableCredentials DataModel
DataModel implementation of the VerifiableCredentials schemas and definition.
Installation
npm install -D @datamodels/verifiable-credentialsRationale
A VerifiableCredential is fact-checking review/attestation of claims made about a credentialsubject, following the W3C VC datamodel.
The VerifiableCredentials data-model provides 3 definitions for the users's DID-datastore:
- claimedCredentials - ClaimedCredentials : self-issued by the user.
- issuedCredentials - IssuedCredentials : issued to other users.
- heldCredentials - HeldCredentials : received from issuers.
Each of these definitions has an array of VerifiableCredential stream IDs.
Schemas
ClaimedCredentials
The ClaimedCredentials schema defines the format of a document that contains the properties listed below. Properties not defined in the schema cannot be included in the ClaimedCredentials.
| Property | Description | Value | Max Size | Required | Example |
|---|---|---|---|---|---|
| claimed | List of VerifiableCredentials self-issued by this DID | array of ceramic:// links to VerifiableCredentials streams | false |
IssuedCredentials
The IssuedCredentials schema defines the format of a document that contains the properties listed below. Properties not defined in the schema cannot be included in the IssuedCredentials.
| Property | Description | Value | Max Size | Required | Example |
|---|---|---|---|---|---|
| issued | List of VerifiableCredentials issued by this DID to other users | array of ceramic:// links to VerifiableCredentials streams | false |
HeldCredentials
The HeldCredentials schema defines the format of a document that contains the properties listed below. Properties not defined in the schema cannot be included in the IssuedCredentials.
| Property | Description | Value | Max Size | Required | Example |
|---|---|---|---|---|---|
| held | List of VerifiableCredentials received/issued by other DIDs | array of ceramic:// links to VerifiableCredentials streams | false |
VerifiableCredential
The VerifiableCredential schema defines the format of a document that contains the properties listed below. Properties not defined in the schema cannot be included in the VerifiableCredential.
| Property | Description | Value | Max Size | Required | Example |
|---|---|---|---|---|---|
| @context | See https://www.w3.org/TR/vc-data-model/#contexts | array of string | true | ||
| type | See https://www.w3.org/TR/vc-data-model/#types | array of string | true | ||
| id | See https://www.w3.org/TR/vc-data-model/#identifiers | url | true | ||
| issuer | See https://www.w3.org/TR/vc-data-model/#issuer | object with required property "id" | true | ||
| credentialSubject | See https://www.w3.org/TR/vc-data-model/#credential-subject | credentialSubject with required property "id" | true | ||
| credentialSchema | See https://www.w3.org/TR/vc-data-model/#data-schemas | credentialSchema with required properties "id" and "type" | true | ||
| issuanceDate | See https://www.w3.org/TR/vc-data-model/#issuance-date | ISO Date string | true | ||
| expirationDate | See https://www.w3.org/TR/vc-data-model/#expiration | ISO Date string | false | ||
| proof | See https://www.w3.org/TR/vc-data-model/#proofs-signatures | object with required property "type" | false | ||
| evidence | See https://www.w3.org/TR/vc-data-model/#evidence | object with required property "id" | false | ||
| credentialStatus | See https://www.w3.org/TR/vc-data-model/#status | object with required property "id" | false |
Streams created using this schema can then be linked to a DID's issued credentials on the definitions above.
License
Dual licensed under MIT and Apache 2