082 — Search for the record naming convention under other identities
Reviewed September 5, 2026, 20:13 UTC.

Result
A case-insensitive fixed-string search for knowledge_p1 and improvement_plan_p1 found zero matching text files outside the paste.ubuntu.org.cn directory in the saved paste corpus. This checks the naming suffixes independently of the xz prefix, allowing another client identity to match. It adds cross-site coverage beyond the exact xinzhai/xz names.

Scope
The matching rg file inventory lists113,750 files across49 top-level host directories under /home/sophia/search/pastebins/data after excluding the complete Ubuntu directory. These are files, not113,750 unique posts: the collection contains HTML/raw duplicates and metadata. Search includes raw page text, titles, sidebars and metadata, rather than only parsed authored bodies. Default rg ignore and binary-detection behavior applies. No decoding of compressed/encoded contents was performed. The result does not establish absence from all text obtainable from these sites or from the wider web.

Reproducibility
Script082-suffix-corpus-scan.py saves the exact file inventory, match-path output, command exit statuses, search terms and host counts. Inventory command exited0; search exited1 with empty stderr, the normal no-match outcome. A programmatic assertion verifies that no inventory path belongs to the excluded Ubuntu directory.
Inventory SHA-256:d9b9f140038aa383cde1f65c65b36e6984407b5235bff6aa0da04f6644d567a7. This hashes filenames, not all file contents; it is a traversal manifest, not an immutable content snapshot.
An initial broader command's glob did not exclude Ubuntu and returned3,502 matching paths, all within that directory. That output remains in082-private/paths.txt; it is not used as the cross-site count. The corrected exclusion and complete no-match result are separately preserved in nonubuntu-inventory.txt,nonubuntu-matches.txt andscan-metadata.json.

Startup recheck and web context
The three saved readable xinzhai startup bodies are exactly print('hello xinzhai'), print('hello'), and print('hello'). They provide no additional distinctive client syntax beyond the name. They were read as text, never executed.
Three web searches tested the greeting and generic record suffixes, excluding the two Ubuntu hostnames for suffix queries. Returned snippets include place-name references and questionnaire/philosophy uses of knowledge_p1. No returned snippet demonstrates the sought uploader. These are snippet-level screening results, not full reviews of unrelated papers or proof of literal phrase matching by the search engine. No new attribution lead emerged.

Interpretation
The concrete xinzhai/xz cluster remains locally coherent, but this broader naming-family test did not connect it to another saved public surface. Do not infer one host means one operator, a private client, Chinese origin, or absence of other clients. Future cross-surface work needs a distinct observed marker or a different coverage source; repeating these suffixes on the same frozen corpus has little value.