Pinduoduo Environment Evidence Pipeline

历史客户端观察止于网络边界；设备画像、业务图谱与处置仅作防守架构映射，并非拼多多生产实现披露

拼多多环境证据包到服务端风控的证据边界 官方披露和历史逆向材料支持客户端环境记录与版本化封装；越过网络边界后，接入校验、概率画像、业务图谱和分级处置均为未确认的防守架构映射。 SOURCES / EVIDENCE GRADE C-LEVEL / HISTORICAL CLIENT OBSERVATION B-LEVEL / DEFENSIVE MAPPING — NOT CONFIRMED NETWORK BOUNDARY public visibility stops A / Official Policy device · app · network · sensors IMEI boundary: before v6.63.0 actual collection may vary C / Reverse Reports C: 2025-12-02 v7.80; author mentions v7.85 C: 2026-07-06 anti-token; AI-assisted sample metadata not independently complete never extrapolate to current production Missing Metadata APK / SO hash · channel · ABI device · OS build · capture time tool versions · server experiment therefore: Type B review only Environment Reads system / Build / network SIM state / time / randomness categories vary by version and event Versioned Records structured record container cached + dynamic observations existence ≠ refresh on every call Package Protection Gzip → AES → Base64 historical structure-level observation anti-token Output event-adjacent evidence envelope not inherently a stable device ID not a server authorization decision Ingress Validation schema / version / freshness provenance / missing semantics architecture inference Probabilistic Profile candidate recall / confidence collision / drift / split / merge not a copied client field Business Graph account / campaign / order address / payment / time relationship gives meaning Tiered Decision allow / limit / challenge delay / review / deny / appeal action-specific, not device-wide Governed Feedback outcome / confidence / decay rollback / audit / deletion never learn blindly from denials PUBLIC MATERIAL CANNOT CONFIRM matching formula · model features thresholds · retention · current protocol LEGEND / ASSERTION STRENGTH A: official disclosure C: historical reverse observation B: architecture inference, not confirmed observed client flow inferred / unknown flow environment record ≠ full collection ≠ stable device ID ≠ backend profile

客户端只看到包裹

  • • 历史样本支持环境记录与版本化封装
  • • 缓存、权限和触发场景决定本次实际内容
  • • 动态证据包不天然等于稳定设备编号

版本是证据的一部分

  • • App、SO Hash、渠道、ABI、OS 各自演进
  • • 字段、偏移、前缀和客户端秘密不可跨版本外推
  • • 缺少样本元数据时只能保留 C 级结论

决策发生在边界之后

  • • 画像需要历史召回、碰撞和漂移治理
  • • 账号、活动、订单与支付关系赋予风险语义
  • • 公开逆向不能确认模型、阈值和处置规则

Type B evidence-boundary diagram • Cocoon AI architecture-diagram • 2026-07-23