The Quantum Threat to Bitcoin and Ethereum Explained

Ethereum Community Conference 2026 · April 7, 2026, 10:27AM EDT · 26:26

Zach Pandl, Head of Research at Grayscale, joins Gareth Jenkinson at ETHCC Cannes to break down the rising quantum computing threat to cryptocurrencies and what it means for Bitcoin, Ethereum, and the broader market.

He explains how post-quantum cryptography upgrades could reshape blockchain infrastructure, why Bitcoin faces unique challenges, and how Ethereum may be better positioned to adapt.

OUTLINE
00:00 – Introduction
01:38 – What Is Quantum Threat
03:04 – Bitcoin’s Unique Risk
05:35 – Forks and Market Outcomes
06:51 – Quantum Timeline Outlook
08:19 – Ethereum vs Bitcoin Upgrades
10:05 – Chains at Risk
10:46 – Tokenization Roadmap
12:47 – Decentralized AI Explained
17:35 – Market Sentiment and ETFs


Zach Pandl –
Grayscale –


Gareth Jenkinson – ⁠⁠⁠
The Block –
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