Module sparql_mm 

SPARQL-MM (Multimedia) Support

Implements SPARQL-MM for media fragments and time-series windowing. Supports Media Annotations Ontology (MA Ontology, http://www.w3.org/ns/ma-ont#).

V6 repair: MA/C2PA constants use canonical q_hash (no placeholder collisions); caller-buffered region/time queries; real spatial intersection; honest C2PA status.

Modules

c2pa

C2PA predicate hashes (q_hash of documented IRIs — vocabulary for graph edges only).

ma_ont

Media Annotations Ontology predicate hashes (q_hash of canonical IRIs).

Structs

MediaFragment

Media fragment

SparqlMmHandler

SPARQL-MM Media Handler

TimeWindow

Time window

Enums

C2paVerificationStatus

Honest C2PA verification status (design §6.3.7). Field presence alone is never “verified”.

MediaFragmentDimension

Media fragment dimensions

WindowType

Time window type

Functions

c2pa_created_at

c2pa:createdAt - get creation timestamp

c2pa_created_by

c2pa:createdBy - get creator

c2pa_credential

C2PA extension functions c2pa:credential - get content credential

c2pa_derived_from

c2pa:derivedFrom - get source asset

c2pa_is_verified

c2pa:isVerified - check if media is verified

c2pa_verification_status

c2pa:verificationStatus - get verification status

c2pa_verify_signature

c2pa:verifySignature - verify content signature

ma_bitrate

ma_codec

ma_format

MA Ontology extension functions

ma_framerate

ma_mime_type

mm_dimensions

mm_duration

SPARQL-MM extension functions

mm_temporal_fragment