BitMEX “Canary Fund” counters BIP-361 with reactive BTC freeze
BitMEX Research proposed a “canary fund” as an alternative to BIP-361 for quantum security. Under the BitMEX proposal, community BTC would be sent to a special bounty address where the private key is mathematically unknown, but the address remains valid. If someone spends the bounty, it would serve as public evidence that quantum decryption capable of stealing funds is now feasible.
That trigger would activate protections via a soft fork and temporarily restrict activity from vulnerable legacy Bitcoin addresses. Compared with BIP-361’s timeline, which targets legacy wallets by blocking new deposits after three years and freezing unmigrated funds after five years, BitMEX frames its canary fund as a more measured, evidence-based approach. BitMEX also cites that about 34% of BTC supply is in addresses that have already exposed public keys on-chain, raising urgency around a potential “Q-Day.” The later coverage adds that Google research is referenced, suggesting required resources may drop sharply and pointing to a migration timeline around 2029.
For traders, the canary fund may reduce near-term “freeze deadline” certainty versus BIP-361, but it can still create sharp repricing risk if the bounty is spent and markets infer legacy freezes could arrive quickly.
Neutral
For BTC specifically, the proposal is not an immediate code-level freeze, but it raises protocol-policy uncertainty. On one hand, the “canary fund” approach could delay deterministic legacy lock decisions and soften near-term market fears versus BIP-361. On the other hand, it creates a new, binary-looking catalyst: if the bounty is spent, traders may rapidly price in faster post-quantum restrictions and legacy freezing risk. The net effect is mixed, with potentially short-term volatility around expectations of a future “Q-Day,” while longer-term direction depends on whether quantum timelines and migration progress validate the implied 2029-oriented path.