Bitcoin Block Fits 11,255 Transactions, Nears Record

Bitcoin Almost Broke an 11-Year-Old Record

Bitcoin just came within touching distance of a transaction record that has stood for over a decade. On Saturday, Nov. 7, 2026, mining pool Antpool produced Block 974961. To everyone's surprise, this single block packed in an astonishing 11,255 transactions.

That figure makes it the second-highest transaction count in a single Bitcoin block in the network's entire history. It sits just 984 transactions short of the all-time record established back in August 2015.

What makes this even more fascinating is that another huge block was mined just three days earlier. On Nov. 4, developer Mononaut from Mempool.space pointed out on X that Block 974557 contained 10,573 transactions, which was briefly the second-highest total ever. That benchmark lasted only 72 hours before Block 974961 took the spot.

New #2 record: 11,255. We’re rapidly closing in on the all-time high of 12,239 transactions from block 367853

According to blockchain data, Block 974961 was mined at 18:24:12 UTC. It measured roughly 1.1 megabytes (MB) in size and consumed 3,993,844 weight units. That means it used about 99.85% of Bitcoin's maximum block weight limit of 4 million weight units.

Inside this packed block, 10,585 transactions took up 87.7% of the space while paying less than 1 satoshi per virtual byte (sat/vB). A satoshi is the smallest unit of bitcoin, and virtual bytes measure a transaction's footprint on the network.

The financial picture behind this achievement was equally surprising. The block earned the miner about 0.002405 BTCBTC-0.32% in transaction fees, a tiny bonus alongside the standard 3.125 BTC block subsidy. With 11,794 inputs and 23,122 outputs, the block was filled with thousands of tiny, ultra-compact transactions rather than big monetary payments.

Why Does a Block From 2015 Still Hold the Record?

To understand why high transaction counts are so special, we have to look back to Aug. 1, 2015. On that day, mining pool F2pool created Block 367853, which crammed 12,239 transactions into a single block. That record has survived 11 years of upgrades and network changes.

Back in 2015, Bitcoin did not use the modern weight-unit measurement. Instead, it operated under a strict 1 MB block size limit. F2pool squeezed all 12,239 transactions into roughly 999.96 kilobytes, pushing the old network architecture to its absolute limit.

Out of the 12,239 transactions in that historic 2015 block, 11,796 paid less than 1 sat/vB, filling 73.1% of the space. Meanwhile, 442 transactions paid much higher fees of 32 sat/vB or more, taking up the remaining 26.8%. Virtually no transactions fell in between those fee ranges.

The story behind that 2015 record was unique. Bitcoin was experiencing network stress tests and spam campaigns that flooded the system with millions of tiny coin pieces known as dust. This created a huge buildup of Unspent Transaction Outputs (UTXOs).

Think of UTXOs like loose digital change waiting in your wallet. Every Bitcoin node has to keep track of this change to verify future transactions. To clean up the system, F2pool conducted a housekeeping operation, combining thousands of tiny 62-byte outputs into dense blocks. Earlier that same day, F2pool had also mined Block 367851 containing 9,647 transactions.

In short, the 2015 record was not created by thousands of people making regular payments. It was the result of specialized transaction engineering and network cleanup.

How SegWit and Runes Push Bitcoin Limits Today

Fast-forward to 2026, and the technical methods behind dense blocks look completely different. Today's massive transaction counts are heavily driven by minting activity on the Runes protocol, such as UNCOMMON•GOODS, which debuted during Bitcoin's fourth halving in April 2024.

Runes transactions often utilize pay-to-anchor (P2A) outputs and streamlined designs that shrink individual transaction sizes down to just 80 to 100 virtual bytes. Because these transactions are so small, miners can fit thousands more of them into a single block.

Another crucial piece of the puzzle is Segregated Witness (SegWit), a network upgrade introduced in August 2017. SegWit separated signature data from main transaction data, introducing the concept of block weight. This allows signature data to take up less of Bitcoin's total block capacity.

Because of SegWit, two blocks of the exact same size can hold vastly different numbers of transactions. This explains how Block 974961 managed to fit 11,255 transactions while generating very low transaction fees.

It is important to remember that processing thousands of tiny token operations is very different from moving large financial value. A block packed with low-fee mints does not mean more money is being transferred overall.

2026 Is Proving to Be Bitcoin’s Busiest Year Yet

Dense single blocks are not isolated events. In fact, 2026 has been an extraordinary year for overall network activity. Seven of the ten busiest days in Bitcoin's entire history have taken place during 2026.

Here is how the top daily transaction records stand across Bitcoin history:

1. April 23, 2024: 927,010 transactions (All-Time Record)
2. October 23, 2026: 913,196 transactions
3. September 8, 2024: 910,083 transactions
4. October 5, 2026: 904,518 transactions
5. July 19, 2026: 898,862 transactions

Despite these massive numbers throughout the autumn of 2026, early November brought an interesting slowdown. Over the first seven days of November, Bitcoin averaged roughly 534,200 daily transactions, down about 25% from October's daily average of 710,400.

On Nov. 2, daily transactions dropped to 381,886, marking the lowest single-day count since March 17. This drop followed market pullbacks and security concerns linked to a late-October breach at Binance. Past performance of digital assets or market trends does not guarantee future results.

Yet right in the middle of this broader slowdown, network activity rebounded to 591,830 transactions on Nov. 7, producing the second-densest block in history. This highlights an important takeaway: individual block density can spike even when overall daily network activity is quiet.

Will the 12,239-Transaction Record Fall Soon?

With the new second-place block sitting at 11,255 transactions, Bitcoin is now just 985 transactions away from breaking its 11-year-old record.

Whether a new record is set in the near future depends on developers continuing to generate compact transactions and miners choosing to package them together. While traditional payments remain Bitcoin's core function, specialized protocols like Runes have changed how block space gets utilized.

While the 2015 record still stands for now, modern block engineering has shown that the historic benchmark is no longer out of reach.