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Private Append-Only Mailbox Sync

Planned feature

This page describes a planned extension that is not yet implemented.

Problem​

When a client calls eth_getLogs to fetch messages, the RPC provider learns:

  • which topic hashes the client subscribes to
  • polling frequency and timing
  • IP address (unless routed through Tor/VPN)

Even though topic hashes are not directly reversible to identities, a malicious or compromised provider can correlate query patterns with message emission timing to probabilistically link senders and recipients.