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<!DOCTYPE html>
<html>
<head>
<title>
DID Specification Registries
</title>
<meta content='text/html; charset=utf-8' http-equiv='Content-Type'><!--
=== NOTA BENE ===
For the three scripts below, if your spec resides on dev.w3 you can check them
out in the same tree and use relative links so that they'll work offline.
-->
<script class='remove'
src='https://www.w3.org/Tools/respec/respec-w3c'>
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// the specification's short name, as in http://www.w3.org/TR/short-name/
shortName: "did-spec-registries",
edDraftURI: "https://w3c.github.io/did-spec-registries/",
// subtitle
subtitle: "The interoperability registry for Decentralized Identifiers",
// if you wish the publication date to be other than today, set this
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editors: [{
name: "Orie Steele",
url: "https://www.linkedin.com/in/or13b/",
company: "Transmute",
companyURL: "https://www.transmute.industries/",
w3cid: 109171
}, {
name: "Manu Sporny",
url: "http://manu.sporny.org/",
company: "Digital Bazaar",
companyURL: "https://digitalbazaar.com/",
w3cid: 41758
}],
// authors, add as many as you like.
// This is optional, uncomment if you have authors as well as editors.
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authors: [{
name: "Orie Steele",
url: "https://www.linkedin.com/in/or13b/",
company: "Transmute",
companyURL: "https://www.transmute.industries/",
w3cid: 109171
}, {
name: "Manu Sporny",
url: "http://manu.sporny.org/",
company: "Digital Bazaar",
companyURL: "https://digitalbazaar.com/",
w3cid: 41758
}
]
};
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<style>
pre .highlight {
font-weight: bold;
color: green;
}
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</head>
<body>
<section id='abstract'>
<p>
This document serves as an official registry for all known global parameters,
properties, and values used by the Decentralized Identifier ecosystem.
</p>
</section>
<section id='sotd'>
<p>
This registry is under active development and implementers are advised
against using the registry unless they are directly involved with the
W3C DID Working Group.
</p>
<p>
Comments regarding this document are welcome. Please file issues
directly on <a href="https://github.com/w3c/did-spec-registries/issues/">GitHub</a>,
or send them
to <a href="mailto:[email protected]">[email protected]</a> (
<a href="mailto:[email protected]?subject=subscribe">subscribe</a>,
<a href="https://lists.w3.org/Archives/Public/public-did-wg/">archives</a>).
</p>
<p>
Portions of the work on this specification have been funded by the
United States Department of Homeland Security's Science and Technology
Directorate under contracts HSHQDC-16-R00012-H-SB2016-1-002, 70RSAT20T00000010,
and HSHQDC-17-C-00019. The content of this specification does not
necessarily reflect the position or the policy of the U.S. Government
and no official endorsement should be inferred.
</p>
<p>
Work on this registry has also been supported by the Rebooting the
Web of Trust community facilitated by Christopher Allen, Shannon
Appelcline, Kiara Robles, Brian Weller, Betty Dhamers, Kaliya Young,
Kim Hamilton Duffy, Manu Sporny, Drummond Reed, Joe Andrieu, and
Heather Vescent, Dmitri Zagidulin, and Dan Burnett.
</p>
</section>
<section id="conformance"></section>
<section class="informative">
<h1>Introduction</h1>
<p>
This document serves as an official registry for all known global parameters,
properties, and values used by the Decentralized Identifier ecosystem.
</p>
</section>
<section>
<h1>The Registration Process</h1>
<p>
Software implementers might find that the existing Decentralized Identifier Core
specification [[DID-CORE]] is not entirely capable of addressing their use case
and might need to add a new parameters, properties, or values to this registry
in order to achieve their use case in a globally interoperable fashion. In order
to add a new parameter, property, or value to this registry, an implementer MUST
submit a modification request for this registry, as a GitHub Pull Request, where
the modification request adheres to the following rules:
</p>
<ol>
<li>
Any addition to the DID Core Registries MUST specify a human readable
description of the addition.
</li>
<li>
Any addition to the DID Core Registries MUST link, via at least a URL,
preferably a content-integrity protected one, to the defining specification so
that implementers can implement the property.
</li>
<li>
Any addition to the DID Core Registries that is a property or value, MUST
specify a machine readable JSON-LD Context for the addition.
<ul>
<li>
The JSON-LD Context MUST be included in full as part of the submission.
</li>
<li>
A namespace URI MUST be provided for the JSON-LD Context so that consumer
implementations can consistently map a URI to the full context.
</li>
<li>
The URI provided MUST be persistent, and link all terms to their associated
human readable descriptions.
</li>
<li>
The URI provided SHOULD resolve or link to the full context contents.
</li>
<li>
JSON-LD Contexts MUST be versioned and MUST NOT be date stamped.
</li>
<li>
JSON-LD Contexts SHOULD use scoped terms and MUST use the <code>@protected</code>
feature to eliminate the possibility of term conflicts.
</li>
</ul>
</li>
<li>
Properties in the DID Core Registries MUST NOT be removed, only deprecated.
</li>
<li>
Properties definitions in the DID Core Registries MUST include a Concise Data Definition Language (CDDL) [[RFC8610]] of the
Property and it's Abstract Data model structure.
</li>
</ol>
<p class="issue">
Should CDDL be used as the Data Definition Language to formalize the constraints of the CBOR and JSON representation of a DID document? (see <a href="https://github.com/w3c/did-spec-registries/issues/153">issue #153</a>).
</p>
<p>
Additions that do not meet these criteria MUST NOT be accepted. Entries that
are identified to cause interoperability problems MAY be marked as such
at the discretion of the maintainers of this registry, and if possible, after
consultation with the entry maintainer.
</p>
<p>
Any submission to the registries that meet all the criteria listed above will be
accepted for inclusion. These registries enumerate all known mechanisms that
meet a minimum bar, without choosing between them.
</p>
</section>
<section>
<h1>Properties</h1>
<p>
The following section defines the properties available for use in a DID
document. Note that some of these properties are defined in the
<a href="https://www.w3.org/TR/did-core">DID Core Specification</a>, and
others are defined elsewhere and may be method- or domain-specific. Please read
the associated specifications to ensure that the properties you use are
appropriate for your implementation. The properties are arranged here according
to the purpose they serve.
</p>
<p class="issue">
This registry is a work in progress and some properties are missing normative
definitions. We are working on this! This does NOT mean that in future it will
be possible to submit items to the registry without normative definitions (see <a href="#the-registration-process"></a>).
</p>
<p>
Concise Data Defition Lanuage (CDDL) provides a succint data defition for representing JSON and CBOR core representations of
a DID document as described in the <a href="https://www.w3.org/TR/did-core/#core-representations" taret="_blank">DID Core Specification</a> and associated properties registered in this <a href="https://w3c.github.io/did-spec-registries/" target="_blank">DID Spec Registeries</a>.
The draft composite CDDL definition for the entire DID Document Specifation and associated
registeries can be found <a href="cddl/did-document.cddl" target="_blank">here</a>.
Additionally, each Property, Class and Type are described separately below and can be found below the `CDDL` column and apply to JSON and CBOR representations only.
</p>
<section>
<h3>Base properties</h3>
<p>
These properties are foundational to DID documents, and are expected to be
useful to all DID methods.
<section>
<h4>@context</h4>
<table class="simple" style="width: 100%;">
<thead>
<tr>
<th>Normative Definition</th>
<th>JSON-LD</th>
<th>CDDL</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<a href="https://www.w3.org/TR/did-core/#production-0">DID Core</a>
</td>
<td>
<a href="https://www.w3.org/ns/did/v1">DID Core context</a>
</td>
<td>
</td>
</tr>
</tbody>
</table>
<p class="issue">
This is an active area of debate regarding if <code>@context</code> belongs as a base property in the
DID Core. See <a href="https://github.com/w3c/did-core/issues/432">issue
#283</a>.
</p>
<pre class="example" title="Example of @context property">
{
"@context": [
"https://www.w3.org/ns/did/v1",
"https://example.com/blockchain-identity/v1"
],
...
}
</pre>
</section>
<section>
<h4>id</h4>
<table class="simple" style="width: 100%;">
<thead>
<tr>
<th>Normative Definition</th>
<th>JSON-LD</th>
<th>CDDL</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<a href="https://www.w3.org/TR/did-core/#did-subject">DID Core</a>
</td>
<td>
<a href="https://www.w3.org/ns/did/v1">DID Core context</a>
</td>
<td>
<a href="cddl/id.cddl" target="_blank">id.cddl</a>
</td>
</tr>
</tbody>
</table>
<pre class="example" title="Example of id property">
{
"id": "did:example:123",
...
}
</pre>
</section>
<section>
<h4>controller</h4>
<table class="simple" style="width: 100%;">
<thead>
<tr>
<th>Normative Definition</th>
<th>JSON-LD</th>
<th>CDDL</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<a href="https://www.w3.org/TR/did-core/#authorization-and-delegation">DID Core</a>
</td>
<td>
<a href="https://www.w3.org/ns/did/v1">DID Core context</a>
</td>
<td>
<a href="cddl/controller.cddl" target="_blank">controller.cddl</a>
</td>
</tr>
</tbody>
</table>
<pre class="example" title="Example of controller property">
{
"controller": "did:example:123",
...
}
</pre>
</section>
<section>
<h4>verificationMethod</h4>
<table class="simple" style="width: 100%;">
<thead>
<tr>
<th>Normative Definition</th>
<th>JSON-LD</th>
<th>CDDL</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<a href="https://www.w3.org/TR/did-core/#dfn-verification-method">DID Core Terminology</a> <span class="issue">(property definition pending)</span>
</td>
<td>
<a href="https://www.w3.org/ns/did/v1">DID Core context</a>
</td>
<td>
<a href="cddl/verificationMethod.cddl" target="_blank">verificationMethod.cddl</a>
</td>
</tr>
</tbody>
</table>
</section>
<section>
<h4>publicKey</h4>
<p class="issue">
This property may be replaced entirely by <code>verificationMethod</code> in
DID Core. See <a href="https://github.com/w3c/did-core/issues/283">issue
#283</a>.
</p>
<table class="simple" style="width: 100%;">
<thead>
<tr>
<th>Normative Definition</th>
<th>JSON-LD</th>
<th>CDDL</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<a href="https://www.w3.org/TR/did-core/#dfn-publickey">DID Core</a>
</td>
<td>
<a href="https://www.w3.org/ns/did/v1">DID Core context</a>
</td>
<td>
<a href="cddl/publicKey.cddl" target="_blank">publicKey.cddl</a>
</td>
</tr>
</tbody>
</table>
<pre class="example" title="Example of publicKey property">
{
"id": "did:example:123",
"publicKey": [
{
"id": "did:example:123#ZC2jXTO6t4R501bfCXv3RxarZyUbdP2w_psLwMuY6ec",
"type": "Ed25519VerificationKey2018",
"controller": "did:example:123",
"publicKeyBase58": "H3C2AVvLMv6gmMNam3uVAjZpfkcJCwDwnZn6z3wXmqPV"
},
{
"id": "did:example:123#WjKgJV7VRw3hmgU6--4v15c0Aewbcvat1BsRFTIqa5Q",
"type": "EcdsaSecp256k1VerificationKey2019",
"controller": "did:example:123",
"publicKeyJwk": {
"crv": "secp256k1",
"x": "NtngWpJUr-rlNNbs0u-Aa8e16OwSJu6UiFf0Rdo1oJ4",
"y": "qN1jKupJlFsPFc1UkWinqljv4YE0mq_Ickwnjgasvmo",
"kty": "EC",
"kid": "WjKgJV7VRw3hmgU6--4v15c0Aewbcvat1BsRFTIqa5Q"
}
}
]
}
</pre>
</section>
<section>
<h4>service</h4>
<table class="simple" style="width: 100%;">
<thead>
<tr>
<th>Normative Definition</th>
<th>JSON-LD</th>
<th>CDDL</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<a href="https://www.w3.org/TR/did-core/#service-endpoints">DID Core</a>
</td>
<td>
<a href="https://www.w3.org/ns/did/v1">DID Core context</a>
</td>
<td>
<a href="cddl/service.cddl" target="_blank">service.cddl</a>
</td>
</tr>
</tbody>
</table>
<pre class="example" title="Example of service and serviceEndpoint properties">
{
...
"service": [{
"id": "did:example:123#edv",
"type": "EncryptedDataVault",
"serviceEndpoint": "https://edv.example.com/"
}]
}
</pre>
</section>
</section>
<section>
<h3>Services</h3>
<p>
These terms are properties or types belonging to objects in the value of
<a href="#service"></a>.
</p>
<section>
<h4>serviceEndpoint</h4>
<table class="simple" style="width: 100%;">
<thead>
<tr>
<th>Normative Definition</th>
<th>JSON-LD</th>
<th>CDDL</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<a href="https://www.w3.org/TR/did-core/#service-endpoints">DID Core</a>
</td>
<td>
<a href="https://www.w3.org/ns/did/v1">DID Core context</a>
</td>
<td>
<a href="cddl/serviceEndpoint.cddl" target="_blank">serviceEndpoint.cddl</a>
</td>
</tr>
</tbody>
</table>
<pre class="example" title="Example of service and serviceEndpoint properties">
{
...
"service": [{
"id": "did:example:123#edv",
"type": "EncryptedDataVault",
"serviceEndpoint": "https://edv.example.com/"
}]
}
</pre>
</section>
</section>
<section>
<h3>Verification relationships</h3>
<p>
A DID document expresses the relationship between the DID subject and a
verification method using a
<a href="https://w3c.github.io/did-core/#dfn-verification-relationship">
verification relationship</a>.
</p>
<section>
<h4>assertionMethod</h4>
<table class="simple" style="width: 100%;">
<thead>
<tr>
<th>Normative Definition</th>
<th>JSON-LD</th>
<th>CDDL</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<a href="https://w3id.org/security/#assertionMethod">security-vocab</a>
</td>
<td>
<a href="https://www.w3.org/ns/did/v1">DID Core context</a>
</td>
<td>
<a href="cddl/assertionMethod.cddl" target="_blank">assertionMethod.cddl</a>
</td>
</tr>
</tbody>
</table>
<pre class="example" title="Example of assertionMethod property">
{
...
"publicKey": [{
"id": "did:example:123#WjKgJV7VRw3hmgU6--4v15c0Aewbcvat1BsRFTIqa5Q",
"type": "EcdsaSecp256k1VerificationKey2019",
"controller": "did:example:123",
"publicKeyJwk": {
"crv": "secp256k1",
"x": "NtngWpJUr-rlNNbs0u-Aa8e16OwSJu6UiFf0Rdo1oJ4",
"y": "qN1jKupJlFsPFc1UkWinqljv4YE0mq_Ickwnjgasvmo",
"kty": "EC",
"kid": "WjKgJV7VRw3hmgU6--4v15c0Aewbcvat1BsRFTIqa5Q"
}
}],
"assertionMethod": [{
"id": "did:example:123#z6MkpzW2izkFjNwMBwwvKqmELaQcH8t54QL5xmBdJg9Xh1y4",
"type": "Ed25519VerificationKey2018",
"controller": "did:example:123",
"publicKeyBase58": "BYEz8kVpPqSt5T7DeGoPVUrcTZcDeX5jGkGhUQBWmoBg"
},
"did:example:123#WjKgJV7VRw3hmgU6--4v15c0Aewbcvat1BsRFTIqa5Q"
]
}
</pre>
</section>
<section>
<h4>authentication</h4>
<table class="simple" style="width: 100%;">
<thead>
<tr>
<th>Normative Definition</th>
<th>JSON-LD</th>
<th>CDDL</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<a href="https://www.w3.org/TR/did-core/#authentication">DID Core</a>
</td>
<td>
<a href="https://www.w3.org/ns/did/v1">DID Core context</a>
</td>
<td>
<a href="cddl/authentication.cddl" target="_blank">authentication.cddl</a>
</td>
</tr>
</tbody>
</table>
<pre class="example" title="Example of authentication property">
{
...
"publicKey": [{
"id": "did:example:123#WjKgJV7VRw3hmgU6--4v15c0Aewbcvat1BsRFTIqa5Q",
"type": "EcdsaSecp256k1VerificationKey2019",
"controller": "did:example:123",
"publicKeyJwk": {
"crv": "secp256k1",
"x": "NtngWpJUr-rlNNbs0u-Aa8e16OwSJu6UiFf0Rdo1oJ4",
"y": "qN1jKupJlFsPFc1UkWinqljv4YE0mq_Ickwnjgasvmo",
"kty": "EC",
"kid": "WjKgJV7VRw3hmgU6--4v15c0Aewbcvat1BsRFTIqa5Q"
}
}],
"authentication": [{
"id": "did:example:123#z6MkpzW2izkFjNwMBwwvKqmELaQcH8t54QL5xmBdJg9Xh1y4",
"type": "Ed25519VerificationKey2018",
"controller": "did:example:123",
"publicKeyBase58": "BYEz8kVpPqSt5T7DeGoPVUrcTZcDeX5jGkGhUQBWmoBg"
},
"did:example:123#WjKgJV7VRw3hmgU6--4v15c0Aewbcvat1BsRFTIqa5Q"
]
}
</pre>
</section>
<section>
<h4>capabilityDelegation</h4>
<table class="simple" style="width: 100%;">
<thead>
<tr>
<th>Normative Definition</th>
<th>JSON-LD</th>
<th>CDDL</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<a href="https://w3id.org/security/#capabilityDelegation">security-vocab</a>
</td>
<td>
<a href="https://www.w3.org/ns/did/v1">DID Core context</a>
</td>
<td>
<a href="cddl/capabilityDelegation.cddl" target="_blank">capabilityDelegation.cddl</a>
</td>
</tr>
</tbody>
</table>
<pre class="example" title="Example of capabilityDelegation property">
{
...
"publicKey": [{
"id": "did:example:123#WjKgJV7VRw3hmgU6--4v15c0Aewbcvat1BsRFTIqa5Q",
"type": "EcdsaSecp256k1VerificationKey2019",
"controller": "did:example:123",
"publicKeyJwk": {
"crv": "secp256k1",
"x": "NtngWpJUr-rlNNbs0u-Aa8e16OwSJu6UiFf0Rdo1oJ4",
"y": "qN1jKupJlFsPFc1UkWinqljv4YE0mq_Ickwnjgasvmo",
"kty": "EC",
"kid": "WjKgJV7VRw3hmgU6--4v15c0Aewbcvat1BsRFTIqa5Q"
}
}],
"capabilityDelegation": [{
"id": "did:example:123#z6MkpzW2izkFjNwMBwwvKqmELaQcH8t54QL5xmBdJg9Xh1y4",
"type": "Ed25519VerificationKey2018",
"controller": "did:example:123",
"publicKeyBase58": "BYEz8kVpPqSt5T7DeGoPVUrcTZcDeX5jGkGhUQBWmoBg"
},
"did:example:123#WjKgJV7VRw3hmgU6--4v15c0Aewbcvat1BsRFTIqa5Q"
]
}
</pre>
</section>
<section>
<h4>capabilityInvocation</h4>
<table class="simple" style="width: 100%;">
<thead>
<tr>
<th>Normative Definition</th>
<th>JSON-LD</th>
<th>CDDL</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<a href="https://w3id.org/security/#capabilityInvocation">security-vocab</a>
</td>
<td>
<a href="https://www.w3.org/ns/did/v1">DID Core context</a>
</td>
<td>
<a href="cddl/capabilityInvocation.cddl" target="_blank">capabilityInvocation.cddl</a>
</td>
</tr>
</tbody>
</table>
<pre class="example" title="Example of capabilityInvocation property">
{
...
"publicKey": [{
"id": "did:example:123#WjKgJV7VRw3hmgU6--4v15c0Aewbcvat1BsRFTIqa5Q",
"type": "EcdsaSecp256k1VerificationKey2019",
"controller": "did:example:123",
"publicKeyJwk": {
"crv": "secp256k1",
"x": "NtngWpJUr-rlNNbs0u-Aa8e16OwSJu6UiFf0Rdo1oJ4",
"y": "qN1jKupJlFsPFc1UkWinqljv4YE0mq_Ickwnjgasvmo",
"kty": "EC",
"kid": "WjKgJV7VRw3hmgU6--4v15c0Aewbcvat1BsRFTIqa5Q"
}
}],
"capabilityInvocation": [{
"id": "did:example:123#z6MkpzW2izkFjNwMBwwvKqmELaQcH8t54QL5xmBdJg9Xh1y4",
"type": "Ed25519VerificationKey2018",
"controller": "did:example:123",
"publicKeyBase58": "BYEz8kVpPqSt5T7DeGoPVUrcTZcDeX5jGkGhUQBWmoBg"
},
"did:example:123#WjKgJV7VRw3hmgU6--4v15c0Aewbcvat1BsRFTIqa5Q"
]
}
</pre>
</section>
<section>
<h4>keyAgreement</h4>
<table class="simple" style="width: 100%;">
<thead>
<tr>
<th>Normative Definition</th>
<th>JSON-LD</th>
<th>CDDL</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<a href="https://w3id.org/security/#keyAgreement">security-vocab</a>
</td>
<td>
<a href="https://www.w3.org/ns/did/v1">DID Core context</a>
</td>
<td>
<a href="cddl/keyAgreement.cddl" target="_blank">keyAgreement.cddl</a>
</td>
</tr>
</tbody>
</table>
<pre class="example" title="Example of keyAgreement property">
{
...
"keyAgreement": [
{
"id": "did:example:123#zC9ByQ8aJs8vrNXyDhPHHNNMSHPcaSgNpjjsBYpMMjsTdS",
"type": "X25519KeyAgreementKey2019",
"controller": "did:example:123",
"publicKeyBase58": "9hFgmPVfmBZwRvFEyniQDBkz9LmV7gDEqytWyGZLmDXE"
}
]
}
</pre>
</section>
</section>
<section>
<h3>Verification method properties</h3>
<p>
These properties are for use on a verification method object, not on the DID document itself.
</p>
<section>
<h4>ethereumAddress</h4>
<table class="simple" style="width: 100%;">
<thead>
<tr>
<th>Normative Definition</th>
<th>JSON-LD</th>
<th>CDDL</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<a href="https://identity.foundation/EcdsaSecp256k1RecoverySignature2020/#ethereumAddress">ESRS2020</a>
</td>
<td>
<a href="https://identity.foundation/EcdsaSecp256k1RecoverySignature2020/lds-ecdsa-secp256k1-recovery2020-0.0.jsonld">esrs2020</a>
</td>
<td>
<a href="cddl/ethereumAddress.cddl" target="_blank">ethereumAddress.cddl</a>
</td>
</tr>
</tbody>
</table>
<pre class="example" title="Example of ethereumAddress property">
{
"@context":[
"https://www.w3.org/ns/did/v1",
"https://identity.foundation/EcdsaSecp256k1RecoverySignature2020#"
],
"id":"did:example:123",
"publicKey":[{
"id": "did:example:123#vm-3",
"controller": "did:example:123",
"type": "EcdsaSecp256k1RecoveryMethod2020",
"ethereumAddress": "0xF3beAC30C498D9E26865F34fCAa57dBB935b0D74"
}]
}
</pre>
</section>
<section>
<h4>publicKeyHex</h4>
<table class="simple" style="width: 100%;">
<thead>
<tr>
<th>Normative Definition</th>
<th>JSON-LD</th>
<th>CDDL</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<a href="https://w3id.org/security#publicKeyHex">PublicKeyHex</a>
</td>
<td>
<a href="https://w3id.org/security/v3-unstable">PublicKeyHex</a>
</td>
<td>
</td>
<td>
<a href="cddl/publicKeyHex.cddl" target="_blank">publicKeyHex.cddl</a>
</td>
</tr>
</tbody>
</table>
<pre class="example" title="Example of publicKeyHex property">
{
"@context":[
"https://www.w3.org/ns/did/v1",
"https://identity.foundation/EcdsaSecp256k1RecoverySignature2020#"
],
"id":"did:example:123",
"publicKey":[{
"id": "did:example:123#vm-2",
"controller": "did:example:123",
"type": "EcdsaSecp256k1RecoveryMethod2020",
"publicKeyHex": "027560af3387d375e3342a6968179ef3c6d04f5d33b2b611cf326d4708badd7770"
}]
}
</pre>
</section>
<section>
<h4>publicKeyJwk</h4>
<table class="simple" style="width: 100%;">
<thead>
<tr>
<th>Normative Definition</th>
<th>JSON-LD</th>
<th>CDDL</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<span class="issue">Normative definition pending</span>
</td>
<td>
<a href="https://www.w3.org/ns/did/v1">DID Core context</a>
</td>
<td>
<a href="cddl/publicKeyJwk.cddl" target="_blank">publicKeyJwk.cddl</a>
</td>
</tr>
</tbody>
</table>
<pre class="example" title="Example of publicKeyJwk property">
{
"id": "did:example:123#_Qq0UL2Fq651Q0Fjd6TvnYE-faHiOpRlPVQcY_-tA4A",
"type": "JsonWebKey2020",
"controller": "did:example:123",
"publicKeyJwk": {
"crv": "Ed25519",
"x": "VCpo2LMLhn6iWku8MKvSLg2ZAoC-nlOyPVQaO3FxVeQ",
"kty": "OKP",
"kid": "_Qq0UL2Fq651Q0Fjd6TvnYE-faHiOpRlPVQcY_-tA4A"
}
},
</pre>
</section>
<section>
<h4>publicKeyBase58</h4>
<table class="simple" style="width: 100%;">
<thead>
<tr>
<th>Normative Definition</th>
<th>JSON-LD</th>
<th>CDDL</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<a href="https://w3id.org/security/#publicKeyBase58">security-vocab</a>
</td>
<td>
<a href="https://www.w3.org/ns/did/v1">DID Core context</a>
</td>
<td>
<a href="cddl/publicKeyBase58.cddl" target="_blank">publicKeyBase58.cddl</a>
</td>
</tr>
</tbody>
</table>
</section>
<section>
<h3>Verification method types</h3>
<p>
These are <em>classes</em> not a <em>properties</em> - in other words, use them
for the value of <code>type</code> in a verification method object.
</p>
<section>
<h4>JsonWebKey2020</h4>
<p class="issue">
<a href="https://github.com/w3c/did-core/issues/240">ISSUE 240 on DID Core</a>: The duplication and/or possible interaction of properties held in a JWK and a verification method are an active topic of discussion in the Working Group. Implementers are cautioned that the behavior of values associated with this property are not stable and might change in the future.
</p>
<table class="simple" style="width: 100%;">
<thead>
<tr>
<th>Normative Definition</th>
<th>JSON-LD</th>
<th>CDDL</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<span class="issue">Normative definition pending</span>
</td>
<td>
<a href="https://www.w3.org/ns/did/v1">DID Core context</a>
</td>
<td>
<a href="cddl/verificationMethodTypes.cddl" target="_blank">verificationMethodTypes.cddl</a>
</td>
</tr>
</tbody>
</table>
<pre class="example" title="Example of JsonWebKey2020 class">
{
"id": "did:example:123#_TKzHv2jFIyvdTGF1Dsgwngfdg3SH6TpDv0Ta1aOEkw",
"type": "JsonWebKey2020",
"controller": "did:example:123",