Leonidas Proposes DOG Mode Bitcoin Client to Counter BIP 110

Leonidas, co-founder of the Runestone project and one of the most prominent figures in Bitcoin's Ordinals and Runes ecosystem, announced on Friday, July 17, 2026, an initiative to create an open-source Bitcoin client called DOG Mode, asking developers to contribute to an initial release. — a direct counter to the stalled BIP 110 anti-spam proposal, which has drawn effectively zero miner support throughout its entire signalling history. DOG Mode would relax Bitcoin Core's relay policies in two specific ways: raising the maximum standard transaction size from 400,000 to 3,900,000 weight units, and slashing the dust limit from between 294 and 546 satoshis down to a single satoshi. Leonidas claims those two changes combined would release approximately $25 million in "padding" currently locked into Ordinals and Runes outputs that must clear Bitcoin Core's minimum threshold.

What DOG Mode Actually Changes — and What It Doesn't

The technical distinction at the heart of this debate is the difference between consensus rules and relay policy. Consensus rules define what makes a block valid; violating them splits a node off the network entirely. Relay policy, by contrast, governs only what an individual node chooses to forward to its neighbours. Bitcoin Core marks certain transactions as "non-standard" and refuses to relay them, even when those transactions are perfectly valid under consensus. Because the large majority of Bitcoin nodes run Core, those defaults function as effective network rules in practice — but they are not immutable protocol law.

DOG Mode exploits this asymmetry deliberately. A Bitcoin block holds four million weight units; Core currently relays nothing larger than 400,000 weight units, roughly a tenth of a full block. DOG Mode would carry transactions filling nearly all of one block. This matters enormously for Ordinals, which embed images and text directly into transactions, and for Runes, which issue tradeable tokens on Bitcoin — both protocols require larger transactions and produce outputs that regularly bump against the dust floor. The estimated $25 million figure Leonidas cites represents the aggregate bitcoin currently used as padding just to clear that floor across both ecosystems.

Services like MARA's Slipstream already exist precisely because Core's relay defaults create friction: users wanting non-standard transactions confirmed must route them directly to a cooperative miner, bypassing the peer-to-peer relay network entirely. Any miner willing to include a DOG Mode-relayed transaction can confirm it and collect the fee — no signalling window, no threshold, no deadline required.

BIP 110's Dead End and the Miner Signal Problem

The backdrop to DOG Mode is BIP 110, a proposed user-activated soft fork that would cap arbitrary data embedded in Bitcoin transactions. Passing BIP 110 requires 55% of miners to signal support — a threshold the proposal has never approached, having drawn zero support in the current signalling period and never clearing roughly 1% in any prior period. According to the BIP 110 monitor, it has has never exceeded roughly 1% in any prior period. Five days before Leonidas's announcement, CoinDesk reported that BIP 110 was approaching its deadline with effectively no miner backing.

BIP 110's primary node support sits in the low single digits and comes almost entirely from Bitcoin Knots, the long-running alternative client favoured by the restrict-data camp. Leonidas is explicit that DOG Mode would deviate from Bitcoin Core far less than Knots does — it modifies relay policy only, touching nothing at the consensus layer. In that sense, both BIP 110 and DOG Mode represent the same strategic shift: rival factions advancing their positions through alternative clients rather than through Bitcoin's formal governance process.

What makes DOG Mode structurally different is that it requires no one's permission. A single miner willing to accept fees for DOG Mode transactions is sufficient for those transactions to confirm. Runes was originally created by Casey Rodarmor; Leonidas championed it and co-founded Runestone, the project that seeded the DOG token. The conflict-of-interest dimension is not lost on the community: the dust change Leonidas proposes would release capital back into markets where his own token actively trades.

Market Context: Fear, Macro Pressure, and Miner Economics

DOG Mode's announcement landed on a day when broader Bitcoin sentiment was already under pressure. CoinDesk reported Bitcoin trading below $63,000 following a new U.S. military strike on Iran and compounding uncertainty from comments by President Trump on China trade. The Fear and Greed Index sat at 27 (Fear) as of July 17, reflecting a broader risk-off posture across digital asset markets. DOG token prices were little-changed after Friday's posts, down 1.2% in the 24-hour period following Leonidas's announcement — a muted reaction suggesting markets are waiting for code before pricing in any protocol-level change.

The macro backdrop adds a layer of urgency to miner economics that makes the DOG Mode debate more than academic. Higher-fee, non-standard transactions represent a meaningful revenue stream for miners willing to accept them — and with block subsidy declining each halving cycle, fee income matters more with each passing year. MARA's Slipstream service exists precisely because there is commercial demand for direct miner routing. If DOG Mode gains any node adoption, it changes the fee landscape by making Ordinals and Runes transactions routable through standard peer-to-peer channels rather than requiring premium direct-miner arrangements.

Meanwhile, institutional capital continued flowing into the broader crypto market. Citadel Securities invested $400 million in Crypto.com, valuing the exchange at $20 billion, and T. Rowe Price, overseeing $1.9 trillion in assets, filed for its first multi-token crypto ETF — signalling that institutional infrastructure is deepening even as on-chain governance disputes remain unresolved.

Background: Bitcoin's Relay Policy Debate in Context

Bitcoin's relay policy has been a recurring battleground since Ordinals launched in early 2023, bringing image and text inscription directly to the base layer. For deeper context on Bitcoin's evolving use cases and the inflation-hedge thesis that underpins long-term holder conviction, see our guide on Gold as an Inflation Hedge — How Physical Gold Compares to Bitcoin. The store-of-value argument for Bitcoin depends in part on its neutrality and censorship resistance — precisely the properties that make BIP 110's data-restriction approach controversial among Ordinals advocates.

For investors tracking Bitcoin's on-chain governance signals, the key reference point is relay policy vs. consensus rules — a distinction that DOG Mode makes structurally central. You can also explore Bitcoin vs Gold as a Store of Value for a deeper treatment of Bitcoin's value proposition relative to traditional inflation hedges. For macro-level portfolio context across digital and traditional assets, WealthWatchPro macro market analysis provides a complementary institutional perspective.

What to Watch: Code, Miner Adoption, and the BIP 110 Clock

As of Friday, July 17, DOG Mode has no repository, no version, and no benchmark. Leonidas announced an initiative and called on developers to contribute to an initial release — the client exists as a stated intent, not a deployable product. The first concrete milestone to watch is the publication of a code repository with an initial commit. Without code, neither miners nor node operators can act on the proposal regardless of their sympathy toward it.

Miner signalling is the second key variable. DOG Mode requires only one miner willing to accept transactions relayed under its rules — a far lower bar than BIP 110's 55% threshold. Watch for public statements from major mining pools, particularly those already operating Slipstream-adjacent services, indicating whether they would accept DOG Mode-relayed transactions. BIP 110's current signalling period deadline is also approaching; if it expires with zero support for a second consecutive period, the restrict-data camp loses its primary procedural mechanism and the client-fork competition becomes the dominant arena. That outcome would validate exactly the strategic logic DOG Mode is built on.