104 — Historical progress report; completed and reviewed in106
September 5, 2026. Partial operational checkpoint, not a final negative result.

Purpose
Extend103's specific inner-representation copy test to the existing August Common Crawl text corpus. This is a new representation scope, not a restart of the completed posted-form scan092.

Preflight and launch
All100,000input manifest files exist in the cached corpus;0missing. Same manifest SHA-25614e2fec6029971c0f1807162ae482fd69c3929a33bef9aa4ff0f49c4c6cea35d. Existing isolated ccsearch-xz-private binary verified SHA-2566c78bb33222535de86c499b6b0dde91116be6f68203eef1e1307d95e7bdef7d7. It binds its dashboard only to127.0.0.1:8097 and has external input fallback disabled by pointing it at loopback port1; no S3 flag.
Started2026-09-05T21:29:56.050600+00:00, PID1204683, output /data/runs/china-codex-xz-inner-copies. The previous scan output was preserved; the new output path had to be absent before launch.

Patterns
187private prefixes from103, derived from9large objects and76pieces in inner URL-safe, standard and plus-to-space forms. Explicit scorer-edge trimming affected2prefixes; lengths63–64characters. Pattern file SHA-2563fcaac4f963fe9181a86c3a6271097d3b3a1eb329aaded16899c8f1b900dd808. No payload material is published or sent to public search engines. This removes an encoding layer, not encryption.

Verified partial checkpoint
At21:30:21UTC, process confirmed alive:4,288/100,000files checked,92,840,274text records,0failures,0input bytes downloaded,0prefix candidates. Partial zeros do not establish absence. Any future candidate requires exact source-body verification.
A bounded observer polls the same job every30seconds for up to40observations; it never restarts scans. Counter page:
http://178.105.23.35:8090/china/inner-copy-status.html
Check the timestamp; stale counters do not prove a job is still running. Terminal completion must be audited against the manifest and saved outputs before reporting a final result.

Provenance and next action
Private104 holds launch metadata, prefix provenance, job.json and live observations. Existing archive corpus retained. No original paste requests, model inference, decryption or key search occurred. Continue this same job, review its final outputs, and preserve a final coverage audit. Do not relaunch after an observation timeout without authoritative process/output inspection.