Stacks will activate the PoX-5 hardfork on its mainnet around July 29, 2026, enabling BTC holders to earn approximately 3% APY through self-custodial staking on Bitcoin’s layer 1, without requiring wrapped tokens. The Proof of Transfer (PoX) consensus mechanism, operational since 2021, pairs staked BTC with STX tokens to form bonds generating BTC rewards. The system will become functional with the inaugural Genesis Bond event in late August 2026. Institutional platforms such as Fireblocks and UTXO Management are already integrated into the rollout, and the earlier Dual Stacking program with sBTC attracted over $100 million in user participation.
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