Bitcoin’s Transaction Backlog: A Growing Challenge for Miners
- The mempool, or Bitcoin’s transaction backlog, has increased from just under 300,000 unconfirmed transactions on July 31, 2023, to over 411,544 as of August 20, 2023.
- It would require 124 blocks, or over 238 megabytes of block space, to clear this backlog.
- The average block time on Sunday was 9 minutes and 40 seconds, and the hashrate reached an impressive 411.82 exahash per second (EH/s).
- This high hashrate and fast block times indicate that the difficulty adjustment is set to rise by 5.10%.
- The backlog is fueled by regular financial transfers and a persistent volume of Ordinal inscriptions, with over 25 million inscriptions recorded on August 20 alone.
Despite the decrease in sales volume for Bitcoin-based NFTs, the production of inscriptions remains constant. The average transaction fee is currently 0.000032 BTC ($0.836), but fees have reached as high as $2.59 per transaction in recent weeks. The median fee on bitinfocharts.com is $0.26 per transfer.
Miners are struggling to keep up with the growing number of unconfirmed transactions, leading to an ongoing backlog. This presents a significant challenge for the Bitcoin network and highlights the need for scalability solutions.







