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# Coinbase Urges Early Work on Bitcoin’s Post-Quantum Transition

**[The Quantum Insider](https://daily.dev/sources/thequantuminsider)** · 7 min read · 0 upvotes · 0 comments

## Summary

Coinbase published a blog post urging the Bitcoin community to begin early, multiyear preparation for a transition to post-quantum cryptography, well before a quantum computer capable of breaking existing signatures actually exists. The exchange, which holds about 5% of all bitcoin, called for evaluating new signature systems (including ML-DSA, SLH-DSA, FN-DSA, and SHRINCS) and proposals like P2MR and P2TRv2 that could allow flexible, upgradeable signature schemes. Key concerns raised include balancing transaction costs, wallet usability, institutional custody and MPC compatibility, avoiding risky stateful signature schemes, and handling dormant, lost, or exposed-key coins without delaying technical progress. Coinbase stressed this is an input to community discussion, not a final position or migration deadline.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://thequantuminsider.com/2026/10/13/coinbase-urges-early-work-on-bitcoins-post-quantum-transition>

## Questions this post answers

### What signature schemes is Coinbase proposing Bitcoin evaluate for post-quantum security?

Coinbase proposed evaluating ML-DSA, SLH-DSA, and FN-DSA (once standardized), along with SHRINCS, a compact hash-based candidate, and other credible quantum-resistant signature candidates. It also pointed to P2MR (tied to Bitcoin Improvement Proposal 360) and P2TRv2 as address-format approaches that could let future signature algorithms be added without rebuilding Bitcoin's structure.

_Teams tracking Bitcoin's cryptographic roadmap can follow signature-scheme debates like this one on daily.dev._

### Why are stateful signature schemes risky for Bitcoin wallets and exchanges?

Stateful signature systems require a signer to track which signing steps have already been used, and reusing a signing state can allow forgery. A failed wallet update or an old backup could trigger this problem, and checking past blockchain transactions would not necessarily catch it since a prior signature or update might never have reached the chain. Exchanges running distributed servers face added coordination challenges.

_Anyone weighing signature-scheme tradeoffs for crypto custody can follow this kind of analysis on daily.dev._

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---

Tags: [#quantum-computing](https://daily.dev/tags/quantum-computing), [#cryptography](https://daily.dev/tags/cryptography), [#bitcoin](https://daily.dev/tags/bitcoin), [#coinbase](https://daily.dev/tags/coinbase)

[View this post on daily.dev](https://daily.dev/posts/coinbase-urges-early-work-on-bitcoin-s-post-quantum-transition-ubwccknqg)

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