Function ash_verify_proof 

pub fn ash_verify_proof(
    nonce: &str,
    context_id: &str,
    binding: &str,
    timestamp: &str,
    body_hash: &str,
    client_proof: &str,
) -> Result<bool, AshError>

Verify proof (server-side).

Returns

Ok(true) if proof is valid, Ok(false) if proof is invalid, Err if inputs are malformed.

Timestamp Validation

This function validates the timestamp format but does NOT check expiry. Use ash_validate_timestamp() separately if you need to enforce timestamp freshness.