BitGo CEO Mike Belshe has thrown down a public challenge to Anthropic’s Claude, putting 100 bitcoin, worth about $6.3 million, on display in a wallet anyone can verify on-chain. The premise: if Claude, or anyone using it, can move those coins, they keep them.
But what’s actually being tested here isn’t brute force against the blockchain. The wallet address proves the funds exist, but the real security, private keys and approval mechanisms, remains off-chain and opaque. So the real question is whether Claude can break through BitGo’s custody architecture, not whether it can guess a password posted online.
For BitGo, the challenge doubles as a public demonstration of what can and cannot be proven in the open. The world can watch that the bitcoin stays put, but there’s no public window into every internal process or defense. What Belshe’s test really shows is where transparency ends and where trust still depends on controls outsiders can’t fully verify.