F13-PI: Yes
Rationale
The comparative whitepaper capability table explicitly composes a group from one authorized multicast channel per sender, preserving each sender’s strong-identity authority. The groupcast semantic specification sections 6–9 provides distributed administration, membership and continuity after creator departure. Together these establish architectural multiple-sender group distribution, not merely a membership object. Application-specific publishing rights and reliable multipoint delivery are not inferred.
Assessment method
Architectural documentary analysis
Source context
Project comparative whitepaper plus groupcast semantic specification
Outstanding qualification
Bind the per-sender multicast composition, membership events and genesis serialization to the wire profile. Reliable multipoint delivery is not established by unreliable fanout.
Public sources
Editorial evidence references
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