http://www.w3.org/ns/prov#value | - The partial signed data corresponds to the partial signed data 1 (72) or the partial signed data 2 (73) shown in FIG. 7B. Especially, according to the present embodiment, in a case where there is a plurality of pieces of partial signed data, the signature verification unit 134 receives the respective partial signed data individually, instead of receiving all of the partial signed data combined by
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