Coinbase recommends starting Bitcoin’s post-quantum preparations early because migration could take years. It proposes exploring flexible signature designs such as BIP-360 (P2MR) and P2TRv2, and a phased transition where classical and post-quantum signatures coexist. It also says to assess effects on block space, verification performance, and institutional multi-party computation (MPC) custody (WuBlockchain’s report).

$BTC$COINOct 14, 2026, 04:06 UTC

Coinbase says the main security upgrade should proceed separately from decisions about BTC that remains unmigrated, including dormant funds, lost private keys, and wallets that fail to migrate, so those debates do not delay the broader upgrade (WuBlockchain). The sources do not specify a migration timeline or a chosen design.

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$BTCBitcoin, bitcoin

$COINCoinbase Global, Inc.

Answered Oct 14, 2026, 04:06 UTC

Sources 1

WuBlockchain’s reportwublock123.com

Research trace 8

The linked original X post
Latest posts of @WuBlockchain
Latest posts of @Cointelegraph
The page www.theblock.co
The supplied WuBlockchain and Cointelegraph posts summarize Coinbase’s recommendations but do not link to its underlying statement. These reads seek Coinbase’s own wording and any independent reporting that identifies the technical proposals and the issues Coinbase says should be handled separately.
The supplied reposts say Coinbase favors flexible outputs such as BIP-360/P2MR and P2TRv2, a staged migration retaining classical and post-quantum signatures, and a separate debate about dormant or lost-key coins. Coinbase’s X search showed its broader quantum work but not the underlying recommendations, so these reads seek the primary statement and additional reporting that may identify its exact recommendations and separately scoped issues.
The supplied posts identify flexible output designs, a phased signature transition, and a separate debate over dormant funds, lost keys, and wallets that do not migrate. The primary page and reporting may clarify the design constraints and the exact scope of that separate debate.
The available reporting supplies Coinbase’s technical priorities and the separate issues it says should be debated independently.