Morning Edition · Sunday, July 19, 2026Published at 1:27 AM EDT · New York
An Ordinals Developer Launches "DOG Mode" to Reopen Bitcoin's Fight Over Blockspace
Leonidas's proposed software would relay transactions up to 3.9 million weight units and cut the dust limit to one satoshi. It counters the anti-data Bitcoin Improvement Proposal 110 (BIP-110) effort, which miners have almost entirely ignored.
Bitcoin's recurring argument over the purpose of its scarce blockspace has entered a new phase. Leonidas, a prominent advocate for the Ordinals and Runes protocols that inscribe data on Bitcoin, has announced an open-source client called DOG Mode that would loosen the relay rules Bitcoin Core and Bitcoin Knots have been tightening. As CoinDesk explains, the client would raise the maximum standard transaction size that nodes will forward from 400,000 weight units to 3.9 million, near a full block, and cut the dust limit, the threshold below which an output is deemed too small to relay, to a single satoshi.
The distinction from the competing proposal is the point. BIP-110 would change Bitcoin's consensus rules to restrict non-financial data and requires broad miner adoption to take effect. DOG Mode only changes what individual nodes relay, so a single cooperating miner could include such transactions. Leonidas argues the current dust padding immobilizes roughly $25 million that the change would release back to Ordinals and Runes users.
The opponents of on-chain data point to their own numbers, which show a stalled path. Ocean Mining's vice president of development, Jason Hughes, argues that BIP-110 lacks measurable consensus, with node signaling around 7 to 15% and hashrate support under 1%. DOG Mode, for its part, currently exists only as an announcement, with no repository, code or benchmark yet published.
The deeper question is governance, not data. Bitcoin has no central authority to settle whether blockspace should carry arbitrary bytes or only monetary transfers, so each proposal becomes a live test of how the network changes its own rules. That either side can release software and ask miners and node operators to choose is the mechanism working as designed, and also the reason these disputes never fully resolve.
- If true, who benefits
Ordinals and Runes projects that need cheap on-chain data, and miners who would collect the fees from near-full-block transactions as the subsidy shrinks.
- The nuance
CoinDesk confirms the proposal and the sub-1% BIP-110 signaling, but DOG Mode exists only as an announcement with no published code, and the roughly $25 million "immobilized" figure is Leonidas's own estimate.
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What this means
This is a contest over Bitcoin's fee market and its social contract, not a technical detail. If data-heavy transactions gain relay space, miners gain fee revenue as the block subsidy shrinks, while node operators who want a minimal, money-only chain lose. The exposed parties are Ordinals and Runes projects, whose economics depend on cheap on-chain data, and Bitcoin purists who view non-monetary use as spam. Miners are the swing voters who ultimately decide by what they include in blocks.
What to watch
- Whether DOG Mode releases actual code and any miner publicly commits to including its transactions, the moment the debate turns from rhetoric to running software.
- BIP-110 hashrate signaling staying under 1%, which would confirm that the consensus-rule route to restricting data has effectively failed.
Observations to monitor, not financial advice.
Synthesized from: CoinDesk · Bitcoin Magazine
Part of a tracked trend
Bitcoin Governance Fights Over What Blockspace Is For
Bitcoin's community keeps relitigating whether scarce blockspace should carry arbitrary data or only monetary transfers, turning each data-limit proposal into a recurring test of how the network changes its own rules.
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