Bitcoin Hits Block 961,632 as BIP-110 Soft Fork Enters Mandatory Signaling Period

The Bitcoin network has reached a critical milestone as it hit block 961,632 on Saturday, marking the start of the mandatory signaling period for the BIP-110 soft fork. This proposal aims to restrict non-financial data from being embedded in the blockchain, with proponents arguing that this measure is necessary to curb 'spam' and refocus the network on its primary monetary function.

However, the transition has been met with significant resistance, with support from mining pools remaining below 3% as of the start of the signaling phase. To bypass traditional miner-led activation, supporters are attempting to enforce the new rules through node operators, who are being encouraged to reject blocks that do not signal support for BIP-110.

The core risk identified by developers and network analysts is a potential chain split, which could occur if nodes enforcing BIP-110 reject blocks that do not adhere to the new rules. This scenario creates an environment ripe for replay attacks, where a transaction broadcast on one chain could be maliciously re-executed on the other.