July 17, 2026
Reduced Data Temporary Softfork
Will Bitcoin miners signal
BIP-110?
Mandatory signaling begins at block 961,632. Here's where the network stands right now.
Estimated time to block 961,632
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Days
--
Hours
--
Minutes
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Seconds
Estimate assumes a ~10-minute average block interval from the current tip. Actual timing shifts with network hash rate — treat this as directional, not a locked date.
Currently signaling
2.01%
13 of 646 blocks this period
Activation threshold
55%
of blocks in a period
Blocks remaining
1,371
until block 961,632
Current period
#476
959,616 – 961,631
Signal Strength
Miner signaling, period over period
Each Bitcoin difficulty period spans 2,016 blocks. Signaling has ticked upward as the deadline nears, but stays far below the ~55% needed for lock-in.
Signaling rate by period
Periods 465–476 · % of blocksDistance to activation
Period #476 · live-est.2.01%
signaling now
55% required
0%100%
646 / 2,016 blocks elapsed in period #476.
1,370 blocks remain before the mandatory-signaling period begins at block 961,632.
1,370 blocks remain before the mandatory-signaling period begins at block 961,632.
What It Does
What is BIP-110?
BIP-110, formally the "Reduced Data Temporary Softfork," is a proposed one-year Bitcoin soft fork that would restrict certain methods of adding data to transactions.
34 B
Caps most new transaction outputs at 34 bytes of non-financial data.
83 B
Introduces an 83-byte limit on OP_RETURN outputs.
Taproot
Temporarily limits Taproot features used for "inscriptions" — the technique behind Ordinals-style NFTs on Bitcoin.
1 Year
Framed as temporary — the restrictions would sunset after roughly one year.
The Fight
A proposal that split the community
Supporters see spam mitigation. Critics see a consensus change with real costs — and the disagreement runs all the way up to the BIP's own editor.
Supporters say
Bitcoin's block space should stay reserved for sound money — not used as cheap storage for "spam" data.
— General framing from BIP-110 proponents
The proposal is pitched as a defense of Bitcoin's original purpose, pushing non-financial data — including Ordinals-style inscriptions — out of the base chain.
Critics say
This turns a spam dispute into a consensus change that would invalidate some currently valid, fee-paying transactions.
— Michael Saylor (Strategy), paraphrased
Casa's Jameson Lopp and Strategy's Michael Saylor have both publicly opposed BIP-110. Notably, even the BIP editor who assigned it a number has criticized the proposal despite formally publishing it. — and opponents argue that it won't work to stop all data embedding, while introducing a form of censorship.
Where Things Stand
Governance fight, not (yet) a network split
Miner signaling has stayed far below the ~55% threshold — recently in the low single digits — which keeps the odds of an actual chain split remote as the mandatory signaling window approaches.
Jul 30, 2026
Signaling sits at 2.01% in period #476 — a slow but steady climb from near-zero.
~Aug 9, 2026
Estimated arrival at block 961,632 — the start of the mandatory signaling window.
Ongoing
Lock-in requires ~55% signaling within a period. Until then, this remains a fight over governance and identity, not an imminent split.
Featured Read
What happens when the deadline hits?
Aaron van Wirdum lays out the three most likely paths forward once mandatory signaling begins — from BIP-110 stalling out to a permanent chain split.
Technical
Bitcoin's BIP110 Moment: Three Possible Scenarios
Will BIP-110 fail, activate cleanly, or split the chain? A breakdown of what happens under each outcome — including the "wipe out" risk if a minority BIP-110 chain later overtakes the original.
Read the full article →Related Coverage
Bitcoin Magazine on BIP-110
Technical The Bitcoin Softfork That Tried To Police "Junk Data" — And Why It's Already Failing
July 14, 2026
