Regen Network

Regen Network Data Standards

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Class: Claim

An attributed assertion: related statements that one or more identified claimants present together about a subject, at a stated time. A Claim is asserted by definition, so it is self-attested by its claimants and is valid without any third-party attestation; later reviews are separate resources that point to it. An unasserted authoring candidate, such as an extraction draft without a claimant, is not a Claim. Every version is immutable: a correction is a new Claim that states wasRevisionOf.

URI: rfs:Claim

erDiagram
Activity {
    uriorcurie id  
    string name  
    string description  
    date endDate  
    date startDate  
}
Claim {
    string name  
    string description  
    uri url  
    datetime assertedAt  
    uriorcurie wasRevisionOf  
}
ClaimSubject {
    uriorcurie id  
    string name  
}
ContentDigest {
    DigestAlgorithm algorithm  
    string digestValue  
}
Entity {
    string name  
    string description  
    uri url  
    string image  
    EntityTypes type  
    string walletAddress  
}
Evidence {
    uriorcurie id  
    string name  
    string description  
    date issued  
    uri licence  
    string locator  
    string mediaType  
    uriList resolver  
    DCMIType sourceType  
}

Activity ||--}o Entity : "wasAssociatedWith"
Claim ||--|| ClaimSubject : "hasSubject"
Claim ||--}o Evidence : "hasEvidence"
Claim ||--}| Entity : "hasClaimant"
Evidence ||--|o Activity : "wasGeneratedBy"
Evidence ||--|| ContentDigest : "contentHash"

Inheritance

Class Properties

PropertyValue
Class URIrfs:Claim

Slots

NameCardinality and RangeDescriptionInheritance
name1
String
Human-readable title of the claimdirect
description0..1
String
The assertion as the claimant states it in natural languagedirect
url0..1
Uri
Link to a page with more information about the claimdirect
hasClaimant1..*
Entity
The agent or agents that take responsibility for making this assertion: an in…direct
assertedAt1
Datetime
When the claimants made this assertiondirect
hasSubject1
ClaimSubject
What the claim is about, as a ClaimSubject node identified by its IRI: a plac…direct
hasEvidence*
Evidence
Sources the claimant presents as evidence for the assertion, each an Evidence…direct
wasRevisionOf0..1
Uriorcurie
Identifier of the exact, immutable earlier Claim version that this Claim revi…direct

Identifier and Mapping Information

Schema Source

Mappings

Mapping TypeMapped Value
selfrfs:Claim
nativerfs:Claim

LinkML Source

Direct

```yaml name: Claim description: 'An attributed assertion: related statements that one or more identified claimants present together about a subject, at a stated time. A Claim is asserted by definition, so it is self-attested by its claimants and is valid without any third-party attestation; later reviews are separate resources that point to it. An unasserted authoring candidate, such as an extraction draft without a claimant, is not a Claim. Every version is immutable: a correction is a new Claim that states wasRevisionOf.' from_schema: https://framework.regen.network/schema/ mixins: - ProvEntity slots: - name - description - url - hasClaimant - assertedAt - hasSubject - hasEvidence - wasRevisionOf slot_usage: name: name: name description: Human-readable title of the claim. required: true description: name: description description: 'The assertion as the claimant states it in natural language. This is asserted content, not a presentational summary: changing it changes the Claim.' url: name: url description: Link to a page with more information about the claim. A pointer for readers, not evidence; cite evidence with hasEvidence. wasRevisionOf: name: wasRevisionOf description: Identifier of the exact, immutable earlier Claim version that this Claim revises, typically its ClaimIRI. It never names a logical claim or version family. In PROV a revision implies that both versions are aspects of the same thing (alternateOf), so use it only for a revised version of the same assertion; a separate, later assertion, such as a follow-up observation, is a new Claim and is not a revision. The earlier version is unchanged, its attestations do not carry over, and selecting a current version happens outside the Claim. class_uri: rfs:Claim
</details>

### Induced

<details>
```yaml
name: Claim
description: 'An attributed assertion: related statements that one or more identified
  claimants present together about a subject, at a stated time. A Claim is asserted
  by definition, so it is self-attested by its claimants and is valid without any
  third-party attestation; later reviews are separate resources that point to it.
  An unasserted authoring candidate, such as an extraction draft without a claimant,
  is not a Claim. Every version is immutable: a correction is a new Claim that states
  wasRevisionOf.'
from_schema: https://framework.regen.network/schema/
mixins:
- ProvEntity
slot_usage:
  name:
    name: name
    description: Human-readable title of the claim.
    required: true
  description:
    name: description
    description: 'The assertion as the claimant states it in natural language. This
      is asserted content, not a presentational summary: changing it changes the Claim.'
  url:
    name: url
    description: Link to a page with more information about the claim. A pointer for
      readers, not evidence; cite evidence with hasEvidence.
  wasRevisionOf:
    name: wasRevisionOf
    description: Identifier of the exact, immutable earlier Claim version that this
      Claim revises, typically its ClaimIRI. It never names a logical claim or version
      family. In PROV a revision implies that both versions are aspects of the same
      thing (alternateOf), so use it only for a revised version of the same assertion;
      a separate, later assertion, such as a follow-up observation, is a new Claim
      and is not a revision. The earlier version is unchanged, its attestations do
      not carry over, and selecting a current version happens outside the Claim.
attributes:
  name:
    name: name
    description: Human-readable title of the claim.
    from_schema: https://framework.regen.network/schema/
    rank: 1
    slot_uri: schema:name
    owner: Claim
    domain_of:
    - Link
    - ProjectInfo
    - Feature
    - File
    - Impact
    - CreditingProgram
    - CreditProtocol
    - Methodology
    - Registry
    - BufferPoolAccount
    - CreditClassInfo
    - Claim
    - ClaimSubject
    - Evidence
    - Activity
    - Entity
    range: string
    required: true
  description:
    name: description
    description: 'The assertion as the claimant states it in natural language. This
      is asserted content, not a presentational summary: changing it changes the Claim.'
    from_schema: https://framework.regen.network/schema/
    rank: 1
    slot_uri: schema:description
    owner: Claim
    domain_of:
    - Link
    - ProjectInfo
    - File
    - CreditClassInfo
    - Claim
    - Evidence
    - Activity
    - Condition
    - Entity
    range: string
  url:
    name: url
    description: Link to a page with more information about the claim. A pointer for
      readers, not evidence; cite evidence with hasEvidence.
    from_schema: https://framework.regen.network/schema/
    rank: 1
    slot_uri: schema:url
    owner: Claim
    domain_of:
    - Link
    - ProjectInfo
    - CreditingProgram
    - CreditProtocol
    - Methodology
    - Registry
    - CreditClassInfo
    - Claim
    - Entity
    range: uri
  hasClaimant:
    name: hasClaimant
    description: 'The agent or agents that take responsibility for making this assertion:
      an individual, organization or community. Each listed claimant takes responsibility
      for the whole assertion. A collective that asserts as one body is a single claimant
      of type COMMUNITY or ORGANIZATION; listing it does not make its members co-claimants.
      A service that extracted, generated or submitted the RDF is not a claimant unless
      it asserts the content itself. Specializes prov:wasAttributedTo, so under PROV
      each claimant is an agent associated with the activity that generated the Claim,
      which is the act of asserting. Unordered set.'
    from_schema: https://framework.regen.network/schema/
    rank: 1000
    is_a: wasAttributedTo
    slot_uri: rfs:hasClaimant
    list_elements_ordered: false
    owner: Claim
    domain_of:
    - Claim
    range: Entity
    required: true
    multivalued: true
    inlined: true
    inlined_as_list: true
    minimum_cardinality: 1
  assertedAt:
    name: assertedAt
    description: When the claimants made this assertion. For an assertion they made
      in a source document, such as a project plan, and that was transcribed later,
      it is when they made it there, not when it was extracted, transcribed or submitted.
      It is never the time of an observation, or the time the Claim record was generated,
      submitted, published or ingested. The same content asserted at a different time
      is a different Claim. Written in UTC with whole seconds, in the XSD canonical
      form, for example 2026-05-02T07:30:00Z. A local offset is not accepted.
    from_schema: https://framework.regen.network/schema/
    rank: 1000
    slot_uri: rfs:assertedAt
    owner: Claim
    domain_of:
    - Claim
    range: datetime
    required: true
    pattern: ^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}Z$
  hasSubject:
    name: hasSubject
    description: 'What the claim is about, as a ClaimSubject node identified by its
      IRI: a place, plot, project, organization, community, indicator, dataset or
      another claim. Claims about the same subject share its IRI and can be joined.
      Specialized claim schemas narrow the range to a subclass of ClaimSubject. Not
      the claimant, and not necessarily the feature of interest of an observation
      inside the claim.'
    from_schema: https://framework.regen.network/schema/
    rank: 1000
    slot_uri: rfs:hasSubject
    owner: Claim
    domain_of:
    - Claim
    range: ClaimSubject
    required: true
    inlined: true
  hasEvidence:
    name: hasEvidence
    description: Sources the claimant presents as evidence for the assertion, each
      an Evidence node identified by the IRI of the exact version cited. Whether a
      source actually supports the assertion is judged separately, by attestations.
      Specializes dcterms:references. Unordered set.
    from_schema: https://framework.regen.network/schema/
    rank: 1000
    is_a: references
    slot_uri: rfs:hasEvidence
    list_elements_ordered: false
    owner: Claim
    domain_of:
    - Claim
    range: Evidence
    multivalued: true
    inlined: true
    inlined_as_list: true
  wasRevisionOf:
    name: wasRevisionOf
    description: Identifier of the exact, immutable earlier Claim version that this
      Claim revises, typically its ClaimIRI. It never names a logical claim or version
      family. In PROV a revision implies that both versions are aspects of the same
      thing (alternateOf), so use it only for a revised version of the same assertion;
      a separate, later assertion, such as a follow-up observation, is a new Claim
      and is not a revision. The earlier version is unchanged, its attestations do
      not carry over, and selecting a current version happens outside the Claim.
    from_schema: https://framework.regen.network/schema/
    rank: 1000
    slot_uri: prov:wasRevisionOf
    owner: Claim
    domain_of:
    - Claim
    range: uriorcurie
class_uri: rfs:Claim