Module c2pa::assertions::labels

Labels for assertion types as defined in C2PA 1.0 Specification.

These constants do not include version suffixes.

See https://c2pa.org/specifications/specifications/1.0/specs/C2PA_Specification.html#_c2pa_standard_assertions.

Constants

• ACTIONS
  Label prefix for an actions assertion.
• ASSERTION_METADATA
  Label prefix for an assertion metadata assertion.
• BMFF_HASH
  Label prefix for a BMFF-based hash assertion.
• BOX_HASH
  Label prefix for a box hash assertion.
• CLAIM
  Label prefix for a claim assertion.
• CLAIM_REVIEW
  Label prefix for a claim review assertion.
• CLAIM_THUMBNAIL
  Label prefix for a claim thumbnail assertion.
• CLOUD_DATA
  Label prefix for a cloud data assertion.
• CREATIVE_WORK
  Label prefix for a creative work assertion.
• DATA_HASH
  Label prefix for a data hash assertion.
• DEPTHMAP
  Label prefix for a depthmap assertion.
• DEPTHMAP_GDEPTH
  Label prefix for a GDepth depthmap assertion.
• EXIF
  Label prefix for an EXIF information assertion.
• INGREDIENT
  Label prefix for an ingredient assertion.
• INGREDIENT_THUMBNAIL
  Label prefix for an ingredient thumbnail assertion.
• IPTC_PHOTO_METADATA
  Label prefix for an IPTC photo metadata assertion.
• JPEG_CLAIM_THUMBNAIL
  Label prefix for a JPEG claim thumbnail assertion.
• JPEG_INGREDIENT_THUMBNAIL
  Label prefix for a JPEG ingredient thumbnail assertion.
• PNG_CLAIM_THUMBNAIL
  Label prefix for a PNG claim thumbnail assertion.
• PNG_INGREDIENT_THUMBNAIL
  Label prefix for a PNG ingredient thumbnail assertion.
• SCHEMA_ORG
  Label prefix for any assertion based on a schema.org grammar.
• SOFT_BINDING
  Label prefix for a soft binding assertion.
• THUMBNAIL
  Label prefix for a thumbnail assertion.

Functions

• add_thumbnail_format
  Given a thumbnail label prefix such as CLAIM_THUMBNAIL and a file format (such as png), create a suitable label for an assertion.
• version
  Return the version suffix from an assertion label if it exists.