Bitcoin Holders Face Replay Risk in BIP-110 Fork

Bitcoin holders face a serious risk if the network splits due to BIP-110, a proposal that could change how the network handles certain transaction data.

If a minority chain appears, users may receive coins on both chains. Without replay protection, selling the new forked coins could accidentally send real BTC as well.

Developers are warning holders to avoid moving their coins until the two chains can be safely separated. The main concern is that the fork does not initially provide automatic replay protection.

The proposal requires 1,109 marked blocks out of a 2,016-block period, equal to about 55% of blocks, for activation. However, BIP-110 also includes another activation mechanism: nodes running BIP-110 could begin rejecting blocks that do not contain the required signal starting around block 961,632.

The situation will depend largely on miner support for BIP-110 and whether a minority chain can continue producing blocks. If no viable minority chain develops, the replay risk may never become a major issue.