Schemas

Data Schemas are useful when enforcing a specific structure on a collection of data like a Verifiable Credential. Other than that, Data Verification schema and Data Encoding Schemas are used to verify and map the structure and contents of a Verifiable Credential.

These are the schemas used in all API operations mentioned before, such as Error, Credential, Jobs, Anchor, Registry, and so on.

For a detailed example of the schema workflow. Please refer here.

Error

This is a schema for an API Error.

Properties

Name	Type	Required	Description
status	integer	false	Status of the error.
type	string	false	Type of the error.
message	string	false	Message of the error.

Object Schemas

{
  "status": 0,
  "type": "string",
  "message": "string"
}

Hex32

32 byte hex string. Ignoring higher base (base64) for simplicity.

Properties

Name	Type	Required	Description
Hex32	string	false	32 byte hex string. Ignoring higher base (base64) for simplicity.

"string"

JobStartedResult

Object containing unique id of the background task and associated data. This id can be used to query the job status.

Properties

Name	Type	Description
id	JobId	Unique id of the background task. This id can be used to query the job status.
data	object	Data of the object.

{
  "id": "string",
  "data": {
    "did": "did:dock:xyz",
    "hexDid": "0x00",
  }
}

JobId

Unique id of the background task. This id can be used to query the job status

"string"

JobStatus

This is a schema used in Job operation to get a status of the job.

Enumerated Values

Property	Value	Description
JobStatus	todo or finalized or in_progress or error.	Job Status variants.

"in_progress"

JobDesc

This is a schema used in Job operation to get description of the job including the result if it is available.

Properties

Name	Type	Description
id	JobId	Unique id of the background task. This id can be used to query the job status.
status	JobStatus	Status of the job.
result	object	false

{
  "id": "string",
  "result": {},
  "status": "todo",

}

DIDDock

DID as fully qualified, e.g., did:dock:.

Properties

Name	Type	Required	Description
DID	string	false	DID as fully qualified, e.g., did:dock:. You cannot specify your own DID, the DID value will be randomly generated.

"did:dock:xyz"

KeyType

This is a schema type of public key for DID.

Enumerated Values

Property	Value	Description
KeyType	sr25519 or ed25519 or secp256k1	keyType DID variants.

"sr25519"

SigType

This is a schema used in Presentation operation that represents a type of signature.

Enumerated Values

Property	Value	Description
SigType	Sr25519Signature2020 or Ed25519Signature2018 or EcdsaSecp256k1Signature2019	SigType signature variants.

"Sr25519Signature2020"

ProofPurpose

This is a schema that represents a purpose of credential.

Enumerated Values

Property	Value	Description
ProofPurpose	assertionMethod or authentication	Purpose of credential.

"assertionMethod"

Context

This is a schema that represents a JSON-LD context used in DID and Presentation.

[
  "string"
]

DIDDoc

This is a schema that represents a DID document. The current set of properties is incomplete

Properties

Name	Type	Required	Description
@context	Context	false	JSON-LD context.
id	DIDDock	false	DID as fully qualified, e.g., did:dock:.
authentication	array	false	DID authentication.

OBJECT SCHEMAS

{
  "@context": [
    "string"
  ],
  "id": "did:dock:xyz",
  "authentication": [
    {}
  ]
}

Credential

This is a schema that represents a credential format expected by API caller when issuing a credential.

Properties

Name	Type	Required	Description
id	string(uri)	false	Credential ID. The default value is a creds.dock.io uri with random ID.
context	[string or object]	false	Credential context array of string URIs and/or embedded JSON-LD context objects. If no context parameter is supplied, we will auto generate contexts for you. If you do supply this parameter, you must ensure that all JSON-LD terms are defined. This is for advanced users.
type	[string]	false	Credential type. The default value is ['VerifiableCredential']
subject	object or [object]	true	Credential subject or subjects array.
schema	string	false	Schema ID returned by create schema route or a valid URI
issuer	DIDDock	false	Credential issuer. DID as fully qualified, e.g., did:dock:. If not supplied the credential will not be signed.
issuanceDate	string(date-time[RFC3339])	false	The date and time in GMT that the credential was issued specified in RFC 3339 format. The issuanceDate will be automatically set if not provided.
expirationDate	string(date-time[RFC3339])	false	The date and time in GMT that the credential expired is specified in RFC 3339 format. The default value of the expirationDate will be empty if the user does not provide it.
status	object or string	false	Revocation registry id or user supplied status object containg a Dock revocation registry identifier.

OBJECT SCHEMAS

{
  "context": [
    "string"
  ],
  "type": [
    "string"
  ],
  "subject": {},
  "issuer": "did:dock:xyz",
  "issuanceDate": "2019-08-24T14:15:22Z",
  "expirationDate": "2019-08-24T14:15:22Z",
  "status": "90b7dc6e8642bf1425c5a5ef2c3ff62bb689770843fdc0e2d79b97beb6c73311"
}

VerifiablePresentation

This is a schema that represents a Verifiable (signed) Presentation returned by API. The current set of properties is almost complete

Properties

Name	Type	Required	Description
@context	Context	true	JSON-LD context.
id	string(uri)	true	Verifiable (signed) presentation id.
type	string	true	Verifiable (signed) presentation type.
verifiableCredential	VerifiableCredential	true	Verifiable (signed) Credential returned by API. The current set of properties is almost complete.
proof	object	true	Proof of credential.

Child Properties of Proof

Name	Type	Required	Description
type	SigType	true	Type of signature.
proofPurpose	ProofPurpose	true	Purpose of credential.
verificationMethod	string	true	Verification method.
created	string(date-time[RFC3339])	true	The date and time in GMT that the credential was created specified in RFC 3339 format.
proofValue	string	true	none

OBJECT SCHEMAS

{
  "@context": [
    "string"
  ],
  "id": "http://example.com",
  "type": [
    "string"
  ],
  "verifiableCredential": {
    "@context": [
      "string"
    ],
    "id": "https://creds.dock.io/f087cbfabc90f8b996971ba47598e82b1a03523cb9460217ad58a819cd9c09eb",
    "type": [
      "string"
    ],
    "credentialSubject": {},
    "issuer": "did:dock:xyz",
    "issuanceDate": "2019-08-24T14:15:22Z",
    "expirationDate": "2019-08-24T14:15:22Z",
    "credentialStatus": {},
    "proof": {
      "type": "Sr25519Signature2020",
      "proofPurpose": "assertionMethod",
      "verificationMethod": "string",
      "created": "2019-08-24T14:15:22Z",
      "proofValue": "string"
    }
  },
  "proof": {
    "type": "Sr25519Signature2020",
    "proofPurpose": "assertionMethod",
    "verificationMethod": "string",
    "created": "2019-08-24T14:15:22Z",
    "proofValue": "string"
  }
}

VerifiableCredential

This is a schema that represents a verifiable (signed) Credential returned by API. The current set of properties is almost complete.

Properties

Name	Type	Required	Description
@context	Context	false	JSON-LD context.
id	string(uri)	false	Credential id.
type	[string]	false	Credential type.
credentialSubject	any	false	Credential subject.
issuer	DIDDock	false	Credential issuer or DID as fully qualified, e.g., did:dock:.
issuanceDate	string(date-time[RFC3339])	false	The date and time in GMT that the credential was issued specified in RFC 3339 format. The issuanceDate will be automatically set if not provided.
expirationDate	string(date-time[RFC3339])	false	The date and time in GMT that the credential expired is specified in RFC 3339 format. The default value of the expirationDate will be empty if the user does not provide it.
credentialStatus	any	false	Revocation registry id or user supplied status object.
proof	object	false	Proof of credential.

Child Properties of Proof

Name	Type	Required	Description
type	SigType	false	Type of signature.
proofPurpose	ProofPurpose	false	Purpose of credential.
verificationMethod	string	false	Verification method.
created	string(date-time[RFC3339])	false	The date and time in GMT that the credential was created specified in RFC 3339 format.
proofValue	string	false	Value of credential.

OBJECT SCHEMAS

{
  "@context": [
    "string"
  ],
  "id": "https://creds.dock.io/f087cbfabc90f8b996971ba47598e82b1a03523cb9460217ad58a819cd9c09eb",
  "type": [
    "string"
  ],
  "credentialSubject": {},
  "issuer": "did:dock:xyz",
  "issuanceDate": "2019-08-24T14:15:22Z",
  "expirationDate": "2019-08-24T14:15:22Z",
  "credentialStatus": {},
  "proof": {
    "type": "Sr25519Signature2020",
    "proofPurpose": "assertionMethod",
    "verificationMethod": "string",
    "created": "2019-08-24T14:15:22Z",
    "proofValue": "string"
  }
}

Anchor

An anchor, either a batched or single is the information that constitutes the credentials' proof of existence. The schema includes anchor, type (single, batch), block hash, block number and accompanying data (root, proofs) if any. It depends if the anchor was created using API or not.

{
  "type": "single/batch",
  "proofs": [],
  "blockHash": "string",
  "root": "string",
  "created_at": "YYYY-"
}

Registry

This is a schema that represents a Revocation registry used in Revocation or Unrevocation.

Properties

Name	Type	Required	Description
addOnly	boolean	false	If the addOnly value is true, they cannot unrevoke and delete the registry. The default value for this is false.
policy	[DIDDock]	false	Only one policy supported as of now called OneOf.

{
  "addOnly": true,
  "policy": [
    "did:dock:xyz"
  ]
}

VerificationResponse

This is a schema that is used to define whether a credential/presentation is verified or not

{
  "verified": true,
  "results": [...]
}

Response

This is a schema that represents a default response for a request made.

{
  "code": 0
}

Message

This is a schema that represents a message send request. If the message is signed or encrypted use the ciphertext field. The typ field must be a valid DIDComm message type.

{
  "to": ["did:example:bob"],
  "ciphertext": "eyJhsad...AQ",
  "typ":"application/didcomm..."
}