Jimmy Song explains why Bitcoin needs a 'conservative' node client
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The Bitcoin advocate is the co-founder of ProductionReady, a non-profit initiative to fund open source development of BTC software and education.
The Bitcoin (BTC) network needs a “conservative” Bitcoin client node software implementation to preserve its monetary properties and strengthen network decentralization, according to Jimmy Song, co-founder of ProductionReady, a non-profit organization funding open source Bitcoin node software development and education.
The organization has a “bias” against significant code changes, unless there is “overwhelming” community support for the change, Song told Cointelegraph.
“The general principle is: if you're not sure a change makes the money better, don't make it,” he said.
ProductionReady expects to restore the 83-byte OP_Return data limit for arbitrary, non-monetary information in Bitcoin transactions, he said, adding that keeping node storage costs down by limiting arbitrary data is essential to network decentralization. He said:
“When storage and bandwidth requirements grow, fewer people verify for themselves, and the network centralizes by default. A conservative client takes that tradeoff seriously,” Song continued.
Maximizing nodes and making them accessible to the average user hardens the Bitcoin network, reducing the chances of cheating by submitting false transactions or a few actors colluding to centralize the network.
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Node storage and onchain spam became hot-button topics in 2025 after Bitcoin Core developers unilaterally changed the 83-Byte data limit in Bitcoin Core version 30, the latest major upgrade to the reference implementation for Bitcoin node software.
The limit was changed to 100,000 bytes despite significant pushback from the Bitcoin community. For context, the proposal to change the limit received about 4 times as many downvotes as it did upvotes, according to the proposal’s GitHub pull request page.
Bitcoin Core 30 went live in October 2025, triggering a historic surge in the number of Bitcoin nodes running Bitcoin Knots, an alternative implementation of the node client software.
There are 4,746 Bitcoin Knots nodes, representing over 21.7% of nodes on the network, according to Coin Dance.
Only about 1% of the network was running the Knots software in 2024 before the decision to remove the OP_Return function was announced.
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Source: CoinTelegraph
