Bitcoin’s Ongoing Divide: Core vs. Knot
If you’re just stepping into the world of Bitcoin, or if your understanding is mostly limited to ETFs or central exchanges, you might have missed the unfolding drama surrounding Core and Knot, particularly the OP_Return issue. But for those who have been around for a while and still find themselves puzzled, it’s time to take a closer look.
The conflict resembles a battleground, focusing on fundamental ideological differences that challenge Bitcoin’s core tenets. It’s a clash between scaling and decentralization—essentially, whether improving network capacity and usability should take precedence over maintaining simpler protocols.
On one side, we have Bitcoin Knot, a well-established implementation of Bitcoin Core that’s gaining traction among developers and CTOs like Luke Dashjr. It’s an interesting shift, to say the least.
Core vs. Knot: What’s the Conflict?
The central issue revolves around Bitcoin Core’s planned removal of the 80-byte limit on OP_Return data, set for the upcoming V30 release in October 2025. This change aims to enhance the ability to include data within the Bitcoin blockchain, thereby opening up new applications. However, this move has faced substantial resistance from Knot supporters.
Core developers, including Peter Todd and Jameson Lopp, argue that this change could foster broader innovation in areas like digital art and document verification. They assert that all users should have the right to utilize the Bitcoin blockchain freely and shouldn’t be constrained by governance or moral obligations. Lopp expressed his frustration with political imposition, stating, “I really hate politics. So there’s little patience to those who try to impose a traditional governance model on Bitcoin. If you hate disorder, you’re free to leave.”
Conversely, Knot supporters like Samson Mow and Luke Dashjr caution that these upgrades could lead to blockchain inflation, compromising Bitcoin’s neutrality and its financial goals. Dashjr remarked, “What do you think will happen because the core opens the locks and opens spam and essentially supports it? The opportunity for us to make Bitcoin successful will come out of the window unless the community takes a clear stand and refuses to change.”
Philosophical Debate on Network Neutrality
This conflict underscores a more profound ideological rift regarding the function of Bitcoin. Should it remain strictly a financial settlement layer, or can it adapt to accommodate more experimental on-chain data as long as users are willing to pay the fees?
Some proponents of Core argue that making services available to paying users is a valid approach. However, Knot advocates stress the importance of maintaining controls, like spam prevention, fearing that removing data caps could centralize influence and jeopardize scalability.
Miners and relay service operators hold significant sway in determining which transactions make it to each block, coordinating the network’s response based on the preferences of the forked software. Interestingly, there’s been a noticeable shift, with more operators migrating to Knot—its network share reportedly doubling from May to June 2025, now accounting for about 17% of all Bitcoin nodes. This trend perhaps signals a growing discontent and foreshadows potential fragmentation as the Core’s V30 launch approaches.
Looking Ahead
Though a hard fork hasn’t happened yet, the prospect of blocks and transactions being rejected by different software clients brings back memories of the 2017 SEGWIT split. This scenario prompts further questions about the genuine decentralization of the Bitcoin network. Just how many supporters are actively running their own nodes?
Some speculate that “the biggest threat to Bitcoin’s survival is that too few people use full nodes. For Bitcoin to work, at least 85% of economic activity must do so.”
With technical, political, and philosophical factors at play, the upcoming Core V30 release could significantly shape Bitcoin’s future, impacting decentralized consensus and whether a varied software ecosystem strengthens Bitcoin’s resilience or leads to a pronounced split.
