# Bitcoin's Data-Limit Soft Fork Reaches Its Signaling Deadline With Miner Support Below 1 Percent

BIP-110 would cap arbitrary data in transactions for about a year, and its backers have built an alternative activation path that does not require the miners who have declined to signal.

- Published: 2026-08-05T05:44:56.721Z
- Canonical: https://polylog.news/crypto/2026-08-05/bitcoin-s-data-limit-soft-fork-reaches-its-signaling-deadlin
- Publisher: Polylog (Crypto desk)
- Section: crypto
- Sources: [Bitcoin Magazine](https://bitcoinmagazine.com/bitcoin-for-corporations/corp-bip-110-soft-fork), [BIP-110 proposal](https://bip110.org/), [CoinDesk](https://www.coindesk.com/tech/2026/07/19/bitcoin-s-biggest-advocate-michael-saylor-says-new-plan-to-clean-up-the-blockchain-is-a-bad-idea)

A contested governance fight over Bitcoin reaches its decision window this month. [BIP-110](https://bip110.org/) proposes a temporary soft fork that would restrict non-financial data in Bitcoin transactions for roughly one year. It does so through seven rules that cap most new outputs at 34 bytes, limit the OP_RETURN field (the standard slot for attaching data to a transaction) to 83 bytes, and cap data pushes at 256 bytes. The network entered the proposal's final 2,016-block signaling period on July 25 with miner support at 0.89 percent, far short of the 1,109 blocks needed for lock-in.

The dispute is about what Bitcoin's blockspace is for. Supporters argue that inscriptions and arbitrary data payloads impose permanent storage costs on every node operator, which raises the price of running a full node and therefore weakens the property that anyone can verify the chain independently. Opponents argue that a fee-paying transaction is a fee-paying transaction, that filtering is both censorship and futile because data can be hidden inside ordinary-looking outputs, and that changing consensus rules to police content sets a precedent worse than the problem. Michael Saylor, executive chairman of Strategy and the largest corporate advocate of bitcoin as a treasury asset, [called the proposal a bad idea](https://www.coindesk.com/tech/2026/07/19/bitcoin-s-biggest-advocate-michael-saylor-says-new-plan-to-clean-up-the-blockchain-is-a-bad-idea).

For corporate holders the practical question is narrower, and Bitcoin Magazine's guidance to them [sets it out plainly](https://bitcoinmagazine.com/bitcoin-for-corporations/corp-bip-110-soft-fork). A company running its own node has to choose which software to run, and that choice is a vote. Companies that hold bitcoin through custodians or exchange-traded funds delegate that vote to someone else, usually without noticing they have done so.

Low miner signaling does not settle the question. The proposal includes a mandatory activation path that can proceed without miner approval, the same mechanism used to activate SegWit in 2017 over miner resistance. That is the source of the risk. A user-activated soft fork with genuine opposition on both sides is the configuration most likely to produce a chain split, and this time the disagreeing parties include publicly traded companies with bitcoin on the balance sheet.

## What this means

The mechanism at stake is who sets Bitcoin's transaction relay and validation policy when miners abstain, and the answer determines whether node operators or hash power hold the residual authority. Corporate treasuries and exchange-traded fund issuers are exposed through custody. If a contested activation produces two chains, custodians decide which one their clients hold, and that decision will be made by counterparties rather than by owners. Miners face a narrower version of the same risk, since a rule change that removes data-carrying demand also removes the fee revenue attached to it at a moment when mining margins are already compressed.

## What to watch

- Whether BIP-110 backers trigger the mandatory activation path after the signaling window closes, the moment a policy debate becomes a consensus risk.
- Whether large custodians and exchange-traded fund issuers state publicly which client software they will run, since silence means their clients cannot know what they own in a split.
- Whether the debate pulls in the separate post-quantum migration proposal, BIP-360, because activating one contested soft fork sets the template for the next.