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2.2 Define the Data Model and Schemas
Data models and Schemas
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Top level properties of VC (W3C)
Specification
Property
Definition
Example
Select list

Credential Metadata

Credential metadata is the most basic high level information and it is required for all types of Data Model components listed on table X.
However, not all Data Model components require all the properties listed.
When to use:
For all Data Model components.
Not all Properties required for all types of Data Model components.

Credential metadata includes information such as:
8
Issuance date
The value of this property expresses the date and time the credential becomes valid.
"issuanceDate": "2010-01-01T19:23:24Z"
Validity date
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expirationDate
The value of this property expresses the expiration information of the credential.
"expirationDate": "2020-01-01T19:23:24Z"
Issuer
The value of this property MUST identify the issuer of the credential, either through a URI or object containing an id property.
The property can also be an object that expresses more information.
"issuer": "https://example.edu/issuers/14",

"issuer": {
"id": "did:example:76e12ec712ebc6f1c221ebfeb1f",
"name": "Example University"
Context
A list of URI to provide base human-readable context to understand the content of the credential.
"@context": [
"https://www.w3.org/2018/credentials/v1",
"https://www.w3.org/2018/credentials/examples/v1"
id
The value of this property is optional, it must be a unique URI or DID and it must express an identifier that is used to identify the thing it refers to.
"id": "http://example.edu/credentials/3732",

"id": "did:example:ebfeb1f712ebc6f1c276e12ec21",
Type
The value of this property must be or map to one or more URIs.
Objects that must have a type specified:
VC object
Credential object
Verifiable presentation
Presentation
Proof
credentialStatus
TermsOfUse
evidence
Could an object→type mapping for all objects that MUST have it specified, with examples.
"type": ["VerifiableCredential", "UniversityDegreeCredential"]
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