Bitcoin developer Kevin Loaec, who flagged the danger on X this week, mentioned massive holders might be focused first. Doing nothing will probably be a safer possibility, he acknowledged, as cash that by no means transfer can’t be replayed as a result of there isn’t a signed transaction to repeat.
⚠️IMPORTANT⚠️Within the subsequent couple of days, a brand new shitcoin will fork off Bitcoin. It’s a large safety threat for individuals who simply imagine they’ll get an “airdrop” and wish to promote it, to get extra bitcoin.
I’ll write extra about it, however right here is the TLDR: 👇— Kevin Loaec 🧙♂️🐟 (@KLoaec) August 6, 2026
How BIP-110 makes this potential
The explanation any of that is occurring is a proposal known as BIP-110, which might hold footage, textual content and different non-payment knowledge out of bitcoin transactions for a yr.
Altering bitcoin’s guidelines requires miners to agree, they usually register that settlement by marking the blocks they produce. BIP-110 wants 1,109 marked blocks out of a 2,016-block stretch, or 55%. (A block is the batch of transactions miners add to the ledger roughly each ten minutes.)
That route is closed however the proposal has a second one written into it. From block 961,632, anticipated this weekend, computer systems operating BIP-110 software program will reject any block that doesn’t carry the mark, whether or not miners agreed or not.
Virtually each block being mined proper now doesn’t carry it. So these computer systems will begin rejecting the chain that just about all of bitcoin’s mining energy is constructing.
If some miners proceed constructing a BIP-110-compatible department whereas the remaining hold mining bitcoin as standard, two competing variations of the transaction historical past might emerge. It stalls if no person retains extending the minority department, it stalls.