Less Than Two Weeks Left — Bitcoin's BIP-110 Countdown Begins as Miner Support Grows Ahead of Decisive Moment
The BIP-110 activation process for Bitcoin, which proposes a temporary soft fork to limit specific data-heavy transaction types (like Ordinals inscriptions), is entering its critical final phase. As of July 27, 2026, there are roughly 1,790 blocks remaining until the mandatory signaling window begins at block 961,632 (estimated for August 9). Starting then, nodes enforcing BIP-110 will reject blocks not signaling for the proposal.
While support from miners has grown from below 1% to around 3% recently, it remains concentrated among smaller pools and independent miners, with major pools like Foundry, Antpool, ViaBTC, and F2Pool largely not signaling. Foundry's stance is particularly decisive, as it holds a large share of the network's hashrate and has tied its signaling to a client vote. Without a major pool's shift, widespread activation is unlikely.
If the current low signaling levels persist after the window opens, nodes enforcing BIP-110 will follow a slower, minority chain, potentially creating a chain split from the majority chain followed by legacy (e.g., Bitcoin Core) nodes. This activation mechanism differs from past soft forks like SegWit, resembling the 2017 UASF BIP-148 more closely.
Proponents argue BIP-110 is necessary to curb spam-like data transactions that increase node costs and distort fee markets, framing opposition as a contentious hard fork. Critics, however, view the activation method as a radical overreaction to a minor issue. The final outcome in the coming two weeks hinges on whether a major pool switches support, if major exchanges clarify their chain preference, and how miners actually behave once the mandatory window is open.
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