# ZJX Infrastructure Hardening Source Note Date: 2026-08-22 Publisher: Greyforge Labs Canonical Chronicle: https://greyforge.tech/chronicles/compression-was-the-easy-part ZJX's August 22 engineering pass strengthens the archive path with lower-memory structured-log routing, bounded decoder resources, isolated codec environments, dependency readiness, no-write restore planning, portable conformance, project-owned wrappers, oversized-footer rejection, and valid zero-sized payload preservation. Fresh local verification completed 21 of 21 Zig tests and 76 Python or integration tests. Of the latter, 75 passed and one optional experimental external-codec integration was skipped. Combined result: 96 passed, one optional integration skipped. The controlled structured-log replay used 342,409,609 raw bytes and produced a 4,412,960-byte archive. Peak packaging RSS fell 41.9 percent against the same- session baseline and 57.4 percent against the earlier report-grade run. Wall time was 2.5 percent slower. Archive test and inspect passed. The measured source was private local telemetry, not a source-included public benchmark pack. This supports bounded memory-engineering and operational- hardening claims, not speed, universal compression, production stability, a low-memory mode, or a frozen format. ## Environment And Reproduction Boundary - Environment: local Linux engineering host. - Corpus: 342,409,609 raw bytes of private structured JSONL telemetry. - RSS means resident set size, used here as the peak physical-memory measure for the packaging process. - The exact source revision, invocation, raw corpus, and full terminal evidence are privately retained and are not part of this public source pack. Because those reproduction inputs are not public, this row is local engineering evidence. It is not an independently reproducible public benchmark. Primary surfaces: - https://zjx.greyforge.tech/ - https://zjx.greyforge.tech/docs.html - https://greyforge.tech/chronicles/zjx-compression-evidence-discipline Autonomy, Engineered.