# Ripple Sets a Post-Quantum Path for the XRP Ledger as Ethereum Researchers Propose Rebuilding ecrecover

An Anthropic model reduced the work needed to break a leading post-quantum signature candidate by a factor of 67 million last month, and Bitcoin and Ethereum both published migration plans this week.

- Published: 2026-08-29T05:48:58.855Z
- Canonical: https://polylog.news/crypto/2026-08-29/ripple-sets-a-post-quantum-path-for-the-xrp-ledger-as-ethere
- Publisher: Polylog (Crypto desk)
- Section: crypto
- Sources: [CoinDesk](https://www.coindesk.com/tech/2026/08/28/ripple-is-preparing-xrp-ledger-for-quantum-computers-before-q-day-arrives), [Ethereum Research](https://ethresear.ch/t/proposed-pq-upgrade-for-ecrecover/25844</source), [CoinDesk](https://www.coindesk.com/markets/2026/08/28/bitcoin-wallets-untouched-for-10-years-moved-usd40-million-most-avoided-exchanges)

Quantum resistance has moved from conference panels into shipping roadmaps. Ripple is preparing the XRP Ledger for the point at which a quantum computer can derive private keys from published signatures, the moment researchers call Q-Day. B…

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