checksum
CSC Data Model 1.0.0 section 8.3: OPTIONAL Integrity checksum for the remote document, represented by the structured Hash object (value is standard Base64 and algorithmOID is a digest OID), for example {"value":"BwgJ","algorithmOID":"2.16.840.1.101.3.4.2.1"}. CSC Data Model Bindings 1.0.0 specifies SRI strings for its QES request checksum fields; VC-K follows the conflicting structured form specified by ETSI TS 119 432 for model and wire representations throughout the project.