# Recipient Verification

Whisper ensures a noise-free, secure messaging environment by implementing strict recipient verification protocols. This design fundamentally rejects unsolicited messaging, placing user consent, privacy, and control at the core of all communication.

#### Message Opt-In Architecture

* **Explicit Registration Requirement**\
  Messages can only be delivered to wallets that have explicitly registered and opted into Whisper’s messaging layer. This prevents unsolicited outreach and ensures that users only receive messages they’ve agreed to accept—eliminating inbox flooding, cold messaging, and bot-driven spam.
* **Decentralized Whitelist Model**\
  Instead of relying on centralized allowlists or spam filters, Whisper enables wallet owners to manage opt-in status on-chain or through cryptographically signed preferences. This ensures verifiability, transparency, and user sovereignty over inbound communication permissions.

#### On-Chain Reputation (Coming Soon)

* **Trust Signals via On-Chain Activity**\
  A future enhancement to Whisper involves integrating reputation scoring derived from publicly verifiable on-chain behavior—such as DAO participation, token holding history, successful contract interactions, or verified community memberships.
* **Decentralized Trust Framework**\
  These scores will not be centrally computed or controlled. Instead, they’ll be generated using transparent algorithms, enabling users to assess the trustworthiness of message senders without compromising privacy or requiring third-party evaluation services.

#### Zero Spam Guarantee

* **No Open Messaging Pipes**\
  Unlike traditional messaging platforms where anyone with your contact ID can send a message, Whisper’s model ensures that your wallet address cannot be used for unsolicited outreach unless you explicitly authorize it. Messages are cryptographically sealed and routed only to consenting parties.
* **Intentional Communication by Design**\
  Whisper is not a tool for marketing outreach, mass notifications, or behavioral profiling. It is a private enclave for meaningful, encrypted, wallet-native interactions, ensuring that users can focus on relevant, contextual dialogue without distraction or intrusion.

#### Privacy & Security Implications

* **Minimal Metadata Exposure**\
  Because Whisper uses opt-in registration and message verification, even metadata (like timestamps, sender wallet, and message size) is minimized in its exposure. This reduces the risk of traffic analysis and other metadata-based privacy attacks.
* **User-Controlled Messaging Surface**\
  Users retain full control over who can message them and under what conditions. Whisper ensures this control is cryptographically enforced, not dependent on app settings or mutable backend configurations.
