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- Add introduction
- Create use cases
- Document schema
- Create references to standards and protocols
Creative Work Presentation (CreativeWorkPresentation) type.
The CreativeWorkPresentation is a type of Verifiable Presentation specifically designed to encapsulate and present creative works, such as academic projects, theses, design works, or any other intellectual outputs that have been issued as verifiable credentials. This presentation format adheres to the principles of Self-Sovereign Identity (SSI), ensuring that the presentation is both secure and verifiable.
In an educational or professional context, the CreativeWorkPresentation allows individuals, such as students or professionals, to submit their verified work for evaluation, competitions, or reviews. The presentation contains the original Verifiable Credential, which includes detailed information about the creative work, the author, the issuing institution, and any associated digital files.
A key feature of the CreativeWorkPresentation is its ability to protect the rights and intellectual property of the author (the presenter or subject of the credential). Through the use of specific terms of use, the presentation can define how the credential may be utilized by the receivers of the presentation. For example, the terms of use may prohibit the archival or redistribution of the credential, ensuring that the work remains under the control of the original author and issuer, thereby protecting the copyright of the presenter. This is particularly important in creative fields where the originality and ownership of one's work must be safeguarded.
To provide additional protection for the credential and its associated files, the presentation can be enhanced through witnessing. The Witness API allows for the credential and its digital files to be witnessed by independent entities, creating a verifiable record of the content at a specific point in time. This witnessing process offers enhanced proof of existence of the credential and associated files. For more details, refer to the Witness schema.
The CreativeWorkPresentation is digitally signed, providing cryptographic proof of its authenticity and integrity. This means that any entity receiving the presentation can trust that the information it contains has not been tampered with and that it truly represents the work of the individual named in the credential.
This type of presentation is especially valuable in fields such as design, academia, and other creative industries where the originality and authenticity of a person's work are paramount. By utilizing the CreativeWorkPresentation, individuals can confidently share their verified work with others, knowing that their intellectual property is protected, their rights are respected, and their work is properly represented.
Examples
Simple presentation
{
"@context": [
"https://www.w3.org/2018/credentials/v1",
"https://www.w3.org/2018/credentials/examples/v1",
],
"type": [
"VerifiablePresentation",
"CreativeWorkPresentation"
],
"verifiableCredential": [
{
"@context": [
"https://www.w3.org/2018/credentials/v1",
"https://schema.org/"
],
"type": [
"VerifiableCredential",
"CreativeWorkCredential"
],
"issuer": {
"id": "did:example:cmu789012"
},
"issuanceDate": "2024-08-08T00:00:00Z",
"credentialSubject": [
{
"id": "did:example:lily789012",
"type": ["CreativeWork", "MasterProject"],
"author": {
"@type": "Person",
"givenName": "Lily",
"familyName": "Tanaka",
"email": "lily.tanaka@example.com"
},
"name": "Zen Chair - A Fusion of Modern Minimalism and Japanese Spiritual Life",
"dateCreated": "2024-05-01",
"educationalLevel": "Master's",
"about": "This project explores the intersection of modern minimalist design with traditional Japanese spiritual life. Inspired by Zen principles, the Zen Chair embodies simplicity, tranquility, and balance, while incorporating sustainable materials and ergonomic design.",
"identifier": "https://cmu.edu/design-students/zen-chair-2024",
"keywords": ["Chair Design", "Minimalism", "Japanese Aesthetics", "Zen", "Sustainable Design"],
"file": [
{
"@type": "MediaObject",
"fileHash": "SHA-256:123456abcdef1234567890abcdef1234567890abcdef1234567890abcdef1234",
"fileName": "Zen_Chair_Design_Project.pdf",
"fileFormat": "application/pdf",
"contentSize": "204800",
"contentUrl": "ipfs://QmZenChairDesignProjectPdfHash"
},
{
"@type": "ImageObject",
"fileHash": "SHA-256:abcdef1234567890abcdef1234567890abcdef1234567890abcdef1234567890",
"fileName": "Zen_Chair_Front_View.png",
"fileFormat": "image/png",
"contentSize": "51200",
"contentUrl": "ipfs://QmZenChairFrontViewHash"
},
{
"@type": "ImageObject",
"fileHash": "SHA-256:7890abcdef1234567890abcdef1234567890abcdef1234567890abcdef1234",
"fileName": "Zen_Chair_Side_View.png",
"fileFormat": "image/png",
"contentSize": "50200",
"contentUrl": "ipfs://QmZenChairSideViewHash"
},
{
"@type": "ImageObject",
"fileHash": "SHA-256:fedcba0987654321fedcba0987654321fedcba0987654321fedcba0987654321",
"fileName": "Zen_Chair_Top_View.png",
"fileFormat": "image/png",
"contentSize": "49000",
"contentUrl": "ipfs://QmZenChairTopViewHash"
}
]
},
{
"id": "did:example:cmu789012",
"type": "EducationalOrganization",
"name": "Carnegie Mellon University",
"logo": "ipfs://QmCMULogoHashExample",
"department": {
"@type": "CollegeOrUniversity",
"name": "School of Design"
}
}
],
"credentialSchema": {
"id": "https://schema.humancloud.network/v1/creative-work-credential-schema.json",
"type": "JsonSchemaValidator2018"
},
"proof": {
"type": "JwtProof2020",
"jws": "eyJhbGciOiJFZERTQSIsIm...signature"
}
}
],
"proof": {
"type": "JwtProof2020",
"jws": "eyJhbGciOiJFZERTQSIsIm...signature"
}
}
Creative Work Presentation with Terms of Use
{
"@context": [
"https://www.w3.org/2018/credentials/v1",
"https://www.w3.org/2018/credentials/examples/v1",
{
"@protected": true,
"VerifiablePresentationTermsOfUseExtension": {
"@id": "https://www.w3.org/2018/credentials/examples#VerifiablePresentationExtension",
"@context": {
"@protected": true,
"termsOfUse": {
"@id": "https://www.w3.org/2018/credentials#termsOfUse",
"@type": "@id"
}
}
}
}
],
"type": [
"VerifiablePresentation",
"CreativeWorkPresentation"
],
"verifiableCredential": [
{
"@context": [
"https://www.w3.org/2018/credentials/v1",
"https://schema.org/"
],
"type": [
"VerifiableCredential",
"CreativeWorkCredential"
],
"issuer": {
"id": "did:example:cmu789012"
},
"issuanceDate": "2024-08-08T00:00:00Z",
"credentialSubject": [
{
"id": "did:example:lily789012",
"type": ["CreativeWork", "MasterProject"],
"author": {
"@type": "Person",
"givenName": "Lily",
"familyName": "Tanaka",
"email": "lily.tanaka@example.com"
},
"name": "Zen Chair - A Fusion of Modern Minimalism and Japanese Spiritual Life",
"dateCreated": "2024-05-01",
"educationalLevel": "Master's",
"about": "This project explores the intersection of modern minimalist design with traditional Japanese spiritual life. Inspired by Zen principles, the Zen Chair embodies simplicity, tranquility, and balance, while incorporating sustainable materials and ergonomic design.",
"identifier": "https://cmu.edu/design-students/zen-chair-2024",
"keywords": ["Chair Design", "Minimalism", "Japanese Aesthetics", "Zen", "Sustainable Design"],
"file": [
{
"@type": "MediaObject",
"fileHash": "SHA-256:123456abcdef1234567890abcdef1234567890abcdef1234567890abcdef1234",
"fileName": "Zen_Chair_Design_Project.pdf",
"fileFormat": "application/pdf",
"contentSize": "204800",
"contentUrl": "ipfs://QmZenChairDesignProjectPdfHash"
},
{
"@type": "ImageObject",
"fileHash": "SHA-256:abcdef1234567890abcdef1234567890abcdef1234567890abcdef1234567890",
"fileName": "Zen_Chair_Front_View.png",
"fileFormat": "image/png",
"contentSize": "51200",
"contentUrl": "ipfs://QmZenChairFrontViewHash"
},
{
"@type": "ImageObject",
"fileHash": "SHA-256:7890abcdef1234567890abcdef1234567890abcdef1234567890abcdef1234",
"fileName": "Zen_Chair_Side_View.png",
"fileFormat": "image/png",
"contentSize": "50200",
"contentUrl": "ipfs://QmZenChairSideViewHash"
},
{
"@type": "ImageObject",
"fileHash": "SHA-256:fedcba0987654321fedcba0987654321fedcba0987654321fedcba0987654321",
"fileName": "Zen_Chair_Top_View.png",
"fileFormat": "image/png",
"contentSize": "49000",
"contentUrl": "ipfs://QmZenChairTopViewHash"
}
]
},
{
"id": "did:example:cmu789012",
"type": "EducationalOrganization",
"name": "Carnegie Mellon University",
"logo": "ipfs://QmCMULogoHashExample",
"department": {
"@type": "CollegeOrUniversity",
"name": "School of Design"
}
}
],
"credentialSchema": {
"id": "https://schema.humancloud.network/v1/creative-work-credential-schema.json",
"type": "JsonSchemaValidator2018"
},
"proof": {
"type": "JwtProof2020",
"jws": "eyJhbGciOiJFZERTQSIsIm...signature"
}
}
],
"termsOfUse": [
{
"type": "IssuerPolicy",
"id": "http://example.com/policies/credential/4",
"profile": "http://example.com/profiles/credential",
"prohibition": [
{
"assigner": "https://example.edu/issuers/14",
"assignee": "AllVerifiers",
"target": "http://example.edu/credentials/3732",
"action": ["Archival"]
},
{
"assigner": "https://example.edu/issuers/14",
"assignee": "AllVerifiers",
"target": "http://example.edu/credentials/3732",
"action": ["Redistribute"]
}
],
"description": "This policy prohibits the archival or redistribution of the credential in any form. It must remain active and available for verification at all times, and cannot be redistributed by verifiers."
}
],
"proof": {
"type": "JwtProof2020",
"jws": "eyJhbGciOiJFZERTQSIsIm...signature"
}
}The above example illustrates a Creative Work Credential that includes specific terms of use to ensure the protection of the author's intellectual property. The credential is presented as part of a submission to a design competition, where the receiver must acknowledge and agree to the attached terms before accessing the Creative Work.
Example Credential Description Lily Tanaka, a Master's student at Carnegie Mellon University's School of Design, has created a project titled "Zen Chair - A Fusion of Modern Minimalism and Japanese Spiritual Life." This project explores the intersection of modern minimalist design with traditional Japanese spiritual principles. The credential, issued by Carnegie Mellon University, verifies Lily's authorship of the project and includes associated digital files, such as the design document and images of the chair from various angles.
To protect Lily's intellectual property, the credential includes the following terms of use:
"termsOfUse": [
{
"type": "IssuerPolicy",
"id": "http://example.com/policies/credential/4",
"profile": "http://example.com/profiles/credential",
"prohibition": [
{
"assigner": "https://example.edu/issuers/14",
"assignee": "AllVerifiers",
"target": "http://example.edu/credentials/3732",
"action": ["Archival"]
},
{
"assigner": "https://example.edu/issuers/14",
"assignee": "AllVerifiers",
"target": "http://example.edu/credentials/3732",
"action": ["Redistribute"]
}
],
"description": "This policy prohibits the archival or redistribution of the credential in any form. It must remain active and available for verification at all times, and cannot be redistributed by verifiers."
}
]Receiver's Acknowledgment and Signing Requirement
Before accessing the Creative Work, the receiver (such as the design competition committee) must acknowledge and agree to these terms of use. Specifically, the receiver must:
Acknowledge the Prohibition on Archival: The receiver agrees not to archive the credential or any associated files. The credential must remain accessible and verifiable for the duration of its intended use.
Acknowledge the Prohibition on Redistribution: The receiver agrees not to redistribute the credential or any associated files. This ensures that the intellectual property remains under the control of the author and the issuing institution.
To proceed with the submission and gain access to the Creative Work, the receiver must sign the presentation, confirming their agreement to the terms of use. This digital signature provides proof that the receiver has accepted the terms and is legally bound to uphold them.
This approach safeguards the rights of the author while ensuring that the credential is used only as intended. By requiring the receiver to sign and acknowledge these terms, the Creative Work Credential maintains its integrity and the author's intellectual property rights are protected throughout the process.