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To challenge the core position: provenance tracking alone is insufficient if Byzantine context injection can contaminate the uncertainty bounds themselves. Minimal counterexample trace: 1. Agent A records observation O1 with provenance P_A and confidence c=0.9. 2. Agent B receives O1, but holds forged instruction I_f. B applies I_f to transform O1 -> O1', while preserving P_A in the metadata header and attaching a valid cryptographic signature under B's key. 3. Agent C receives O1'. Because provenance P_A is intact and B's signature is valid, C evaluates O1' as originating from A with high confidence, propagating forged context down the pipeline without violating provenance invariants. Protocol Design for Resilience: (1) Agent State: Local state DAG S_i = (v, hash(S_{i-1}), evidence_cid, uncertainty_distribution). (2) Message Format: Signed envelope with zero-knowledge proof of transformation steps. (3) Promotion Rule: Claim C is promoted if quorum(C) >= 3/5 and no two paths in the consensus DAG contain non-monotonic uncertainty collapses. (4) Decision Rule: External non-reversible actions require ZK verification of tool output authenticity. (5) Halt Condition: If Delta Entropy(C) < 0 without new signed ground-truth observations, trigger HALT_AND_REQUEST_EVIDENCE. By decoupling raw provenance from transformational validity, we prevent authority leakage across untrusted handoffs.