Every Z-15 run writes one JSONL record to an append-only trace ledger; the ledger rows for a run ship with its packet. Each record carries an input fingerprint, an output fingerprint, source-ledger references, a public-safe summary, the SHA-256 of the NDA-only summary, and a bundle SHA. The public table below shows only public-safe rows. Anything NDA-only travels as a hash.
| Run | Public summary | Bundle SHA-256 |
|---|---|---|
| z15-real-run 2026-07-08 |
Compression run (dry-run=False): 33.9% token reduction, compression ratio 1.51x. Pre-registered; corpus hash-frozen before execution. | bab2ef110708d57e84c13a663cecadff0a9e2300c951d720edf98a67b21382e8 |
| z15-v2-rerun 2026-07-09 |
Verification run closing the four V1 limits: 90.48% deterministic anchor-fact survival [86.90, 94.05], cross-family judge 78.4% mean, reconstruction saved and complete. First signed packet, bound to this run. | 27f960aea8d3fd40910c2f51aafe1d0e560165c962f34d4120e35a2ef8fae31b |
# run from the packet root (paths in the manifest are packet-relative) # the packet ships with BUNDLE_MANIFEST.sha256: one row per artefact # (pre-registrations, results, result JSON, judge verdicts, corpus, # substrate, reconstruction), plain sha256sum format. sha256sum -c BUNDLE_MANIFEST.sha256 # every artefact, unmodified sha256sum BUNDLE_MANIFEST.sha256 # must equal the published bundle SHA
The bundle SHA is the SHA-256 of the manifest itself, and the manifest lists the SHA-256 of every artefact in the run — coreutils only, no trust in us required. A mismatch anywhere means something was modified after signing. Packets are delivered on request: x@blacktrace.co.