docs/research/QVM_RECIPIENT_SINGLE.md

Single recipient numeric payload cached ping and send requests

RE-762. Reproduce with python3 scripts/analyze_qvm_recipient_single.py; validate with cargo xtask test-group recipient-single. See the machine report.

Recovered179740..180084 gates, cache writes and numeric formatter ABI over72 fixtures. Ping is capped only above999, negative ping survives, follow flag1024 reuses cache, and entity bit8 publishes-1 after cache handling. Status priority and class0..20 are checked independently. The initial unaligned literal-copy setup is excluded; strlen/copy/format/send effects remain supplied or captured, so serialized strings and native networking are not claimed.

No original executable/full VM/native world collision or rendering runs. Supplied callback/native responses and fixture domains remain explicit; complete macOS/Linux Rust/Bevy/Solari gameplay remains open.