Participant Relationship Protocol

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F30-BP: Yes

Rationale

The selected BPSec integrity blocks protect bundle targets with HMAC under provisioned final-pair keys. The security acceptor can verify those stored blocks after forwarding across different contacts or convergence-layer sessions.

Assessment method

Primary documentary capability assessment; no new runtime experiment

Source context

Primary protocol specification or pinned implementation; selected-composition assessment

Outstanding qualification

Object-level verification is recipient/key scoped, not a publicly verifiable producer signature. Required primary/payload coverage and exact key bindings remain as declared in the profile. Transit holders of only encrypted copies gain no origin authority. Complete-composition integration qualifications remain.

Public sources

Editorial evidence references

The following identifiers refer to research records not included in this public package; they are not public links.