Bitcoin Data Restriction Debate: BIP-110 vs. DOG Mode

The ongoing discussions surrounding data storage and transaction restrictions on the Bitcoin blockchain have gained a new dimension with two contrasting development proposals. On one side, there is BIP-110, which aims to restrict non-financial data on the network and has garnered almost no miner support. On the other, a new client proposal named 'DOG Mode' seeks to entirely eliminate these restrictions without requiring any vote. This situation is reigniting a fundamental philosophical divide over whether Bitcoin's primary function should be value transfer or a broader data layer.

BIP-110, also known as the 'Reduced Data Temporary Softfork' (RDTS), proposes a temporary soft fork (approximately one year) to restrict arbitrary non-financial data within Bitcoin transactions. This proposal targets data-heavy uses such as Ordinals inscriptions, BRC-20 tokens, and Runes, planning to add seven consensus rules that cap most new outputs at 34 bytes, OP_RETURN outputs at 83 bytes (restoring a historical limit), and data pushes at 256 bytes. Activation of the proposal requires 55% miner support within a 2,016-block period, but current signaling rates remain below 1%, and dominant clients like Bitcoin Core do not endorse the proposal.

In opposition to this restrictive approach, Ordinals developer Leonidas has proposed developing a new open-source Bitcoin client called 'DOG Mode'. DOG Mode aims to remove transaction limits enforced by existing Bitcoin clients that are not mandated by the Bitcoin protocol itself. This client would increase the maximum individual transaction size from Bitcoin Core's default 400,000 weight units (WU) to 3.9 million WU (nearly full block capacity) and lower the 'dust limit' (the smallest transaction amount) from 294-546 satoshis to just 1 satoshi. Crucially, DOG Mode's activation requires no consensus change or voting; it only involves a change in the forwarding rules of individual nodes. If enough nodes adopt this client and miners accept these transactions, they will be confirmed.

These developments could have significant implications for Bitcoin-based digital asset ecosystems like Ordinals and Runes. While BIP-110's activation would curb such applications, DOG Mode's adoption would, conversely, encourage their growth by allowing larger data inscriptions and smaller transaction outputs. Leonidas suggests that removing the dust limit could unlock approximately $25 million in idle funds from padded outputs within the Ordinals and Runes ecosystems. Concerns over network congestion and rising transaction fees are central to both sides' arguments. Supporters of BIP-110 contend that data restrictions will preserve network scalability and low transaction fees, while DOG Mode proponents argue that current restrictions are arbitrary and should be removed.

This debate reflects Bitcoin's long-standing ideological struggle over block space and its intended use. Similar disagreements have occurred in the past regarding 'block size wars' and OP_RETURN data limits. Bitcoin Core v30's increase of the default OP_RETURN limit from 83 bytes to 100,000 bytes in October 2025 further intensified these data usage discussions. Prominent figures like Michael Saylor warn that BIP-110's attempt to change consensus rules to combat what some perceive as 'spam' could set a dangerous precedent.

The impact of these two opposing approaches on the Bitcoin network is keenly awaited. Given BIP-110's low miner support, even activation via a User-Activated Soft Fork (UASF) seems challenging. In contrast, DOG Mode's lack of consensus change requirement offers the potential for faster adoption among individual node operators and miners. If a sufficient number of nodes and miners opt for DOG Mode, it could significantly shape Bitcoin's data processing capacity and the future of applications like Ordinals and Runes. The Bitcoin community will continue to closely monitor the trajectory of this technological and philosophical conflict, which will define the network's core values and future direction.