Go module proxy protocol boundary

Evidence-backed facts

1. The Go Project documents module version lists, metadata, module files, checksums, proxy fallback, and privacy controls. informative
2. Public proxy reads are separate from repository or proxy administration and do not grant module ownership, publication, source, or Go Project authority. informative
3. Clients must bind module path escaping, version, info, mod, zip, list, environment fallback, checksum, and private-module rules. informative
4. Proxy availability and checksums establish distribution bytes under a path/version, not author identity, code safety, licensing, maintenance, or compatibility. informative

Primary sources