Stacks opens enrollment for Genesis Bond, a bond that pays BTC yield without wrapping or bridging. First Bitcoin protocol bond targets 100-200 BTC in initial phase.
Stacks will open enrollment for the Genesis Bond on September 10, 2026, at Bitcoin block 966,350. The instrument lets participants earn Bitcoin-denominated yield while keeping their BTC on Bitcoin's base layer, the Stacks team said.
The bond pairs STX tokens with BTC. Yield comes from miner bids through Proof of Transfer, or PoX, the consensus mechanism that underpins the Stacks network. Miners spend BTC to compete for block production on Stacks, and that BTC gets distributed to participants who stack their STX tokens. The Genesis Bond formalizes this pairing, giving both tokens a defined role in the yield equation, Stacks said.
Unlike wrapping or bridging, neither of which the bond requires, the BTC never leaves layer 1. There is no third-party custody. The yield source is the on-chain PoX process, observable by anyone.
The initial phase targets 100 to 200 BTC in total allocation. Participation is limited to institutional and whitelisted participants. Stacks described the cap as deliberate, saying it will collect operational and technical feedback before opening the mechanism to a wider audience.
The bond follows the PoX-5 hard fork, which activated around July 29, 2026, and laid the technical groundwork for Bitcoin Staking on Stacks. The timeline shifted from an earlier late-August target; the team settled on September 10 tied to block 966,350, Stacks said.
For STX token holders, the Genesis Bond creates direct utility. Pairing STX with BTC in the bonding mechanism gives the token a functional role in yield generation, a different value proposition than pure governance or speculative upside.
The 100 to 200 BTC cap in the initial phase suggests Stacks is courting a small group of sophisticated participants who can provide meaningful technical and operational feedback before the mechanism is opened to wider audiences.
The bond is the first product of its kind tied directly to a Bitcoin layer-2 protocol, Stacks said. It sets a precedent for yield products that do not require moving BTC off its native chain. Enrollment opens September 10 at block 966,350.
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