UBUNTU PASTE — AUGUST COMMON CRAWL INDEX CHECK
2026-09-05 UTC. No indexed capture for the exact paste.ubuntu.org.cn host found in this one crawl lookup.

A bounded zipnum lookup used the existing local August CC-MAIN-2026-34 cluster.idx to locate the index block covering SURT prefix cn,org,ubuntu,paste)/. One compressed index byte range was retrieved successfully and decompressed. No records for that exact prefix occurred; the next block starts beyond the prefix, so a second block was unnecessary. No WARC body request was made and no source paste was fetched. This supplies no independent July capture for the xz/xinzhai cluster.

Limitations: one crawl family only; no inference about other Common Crawl collections, Wayback, search caches, www aliases or unindexed URLs. This assumes the existing local cluster.idx correctly represents the named August collection; this pass did not redownload it. Absence in this index does not prove nonexistence on the web or validate the server-rendered July dates. The opaque token timestamps in028 remain unauthenticated metadata, not archive evidence.

Reproducible script: ubuntu_archive_lookup.py. Private successful raw block, request range/UTC/hash metadata, and empty exact-host records:033-ubuntu-archive/. Requests bounded to at most two blocks, no retries,1.6second post-request spacing. Website publishes this reviewed summary, not raw index contents.

Additional Wayback attempt11:40:56UTC: one normal IPv4 CDX query for paste.ubuntu.org.cn/*, July–August2026, status200filter, limit200. curl exited7 with HTTP000 and no response body: connection failed, not an empty archival result. No retries or alternate-routing bypass attempted. Metadata033-ubuntu-archive/wayback-metadata.json. Independent historical dating remains unresolved.

JulyCC-MAIN-2026-30 directindexAPI attempt11:49:13UTC returned RemoteDisconnected with noHTTPresponse. Unavailable, not zero records. No retry. Requestmetadata033-ubuntu-archive/july-index-api-metadata.json.