Ex-Ripple CTO Proposes Tor-Backed Two-Layer Defense for XRPL

Ripple’s former chief technologist David Schwartz has offered a rare, candid take on how the XRP Ledger (XRPL) might react if a state-level adversary tried to co-opt or disrupt it — and how the ledger’s architecture and community could fight back. The XRPL has an impressive uptime record, running through more than 70 million closed ledgers without a major outage. Still, Schwartz acknowledged on X that state actors represent a real threat to blockchain networks. He noted they could cause temporary disruptions to XRPL by targeting its validator network, but argued that sustained, long-term control would be far more difficult — provided the XRPL community stays active and responsive. Key takeaways from Schwartz’s explanation: - Ripple-run validators make up under 20% of the network, so attacking Ripple’s infrastructure alone would not cripple the ledger. - The network’s resilience hinges on the community’s ability to replace validators that are compromised or pressured. An attack only becomes existential if people are intimidated into stopping running validators at all. - Short-term disruptions are plausible, but systemic capture would require silencing a broad base of node operators. Schwartz also sketched a concrete mitigation idea: a two-layer consensus model. In his scenario: - An inner layer of validators would handle everyday consensus and keep the ledger running. These validators would be easy to replace if taken down, limiting the impact of targeted attacks. - An outer layer would sit dormant most of the time and only activate to make higher-level changes — such as updating the Unique Node List (UNL) that the inner layer trusts. Because the outer layer wouldn’t have to operate visibly and continuously, it could be kept lightweight, infrequent, and harder to target. To further harden the outer layer, Schwartz suggested using anonymizing networks like Tor or I2P, making those validators more difficult for state actors to single out and pressure. The upshot: XRPL’s continued robustness may depend less on any single operator and more on distributed community participation and clever protocol design. Schwartz’s proposal highlights a practical path toward making the ledger more resilient against coercive state pressure — but it ultimately relies on an engaged, decentralized validator community willing to step up if and when the need arises.