Reclaim Protocol

Reclaim Protocol addresses the fact that a screenshot is not evidence. It lets a user turn one fact from any logged-in account into a cryptographic proof a third-party contract can verify, without handing over credentials. Typical uses include proving a balance held at an exchange, a merchant's sales record or the subscription status of an account.

The method is proxy-based zkTLS: traffic passes through an HTTPS proxy that forwards without decrypting and signs the ciphertext along with its direction, while the user generates a local zero-knowledge proof of holding the session key that decrypts it, disclosing only public fields such as domain, path and response code. A verifier who trusts the proxy not to be bribed can be sure the data came from the target site. The implementation is open source, with a hosted client inside a trusted execution environment for cases where local proving is impractical. In October 2026 its trust page reported SOC 2 Type II and ISO/IEC 27001 audits.