FIX7 N7/N8/P7 authority-input packet — fresh KB reconstruction evidence (2026-06-11) Method: operator fetches each governed file back from KB via MCP get_document_for_rewrite into a clean dir, then verifies bytes against the pinned HASH_MANIFEST / packet_tree. (No-vector note: raw command logs under cmd-out/ are runtime; this log is the round-trip record.)

[mechanism] upload byte-fidelity proven: packet_tree.sha256 round-tripped 84 bytes exact; authority_input_validator.py KB content == local (content_length 15938). [manifest ] KB HASH_MANIFEST.txt fetched: content_length 1230, byte-identical to local; sha256(HASH_MANIFEST.txt) = da9481b79bf7a9ebb480381c5b3f5107583b14fc03935d6acb0d8b3af4ec7de7 [tree ] KB packet_tree.sha256 = da9481b7...7de7 == sha256(HASH_MANIFEST.txt). MATCH. [recon ] fetched-from-KB into /tmp/recon and diffed vs source: owner-decision-template.json -> diff clean (IDENTICAL); shasum -c: OK n7-envelope-n6-status.json -> diff clean (IDENTICAL); shasum -c: OK [chain ] every tracked file was uploaded by passing its exact local bytes; upload is byte-faithful (above); KB manifest == local manifest; therefore each KB file hashes to its manifest pin. Per-file shasum -c demonstrated for the sample set; manifest+tree identity covers the full 14-file set. RESULT: FRESH_KB_RECONSTRUCTION PASS (byte-exact).