In the last 24 hours more than 9,000 transactions (worth 1 Satoshi/bytes) in the core network of bitcoin were confirmed. Therefore, the size of mempool sharply decreased by approximately 41 MB.

Data Blockchain.com

As of 11:40 UTC, 15 July, the number of unconfirmed transactions is 283. While the fee remains at 1 Satoshi/bytes.

Next block fee: 1.1 sat/byte
Hour fee: 1.0 sat/byte
Day fee: 1.0 sat/byte
Half-week fee: 1.0 sat/byte
Week fee: 1.0 sat/byte
Block height: 532016

— Bitcoin Core Fee (@CoreFeeHelper) July 15, 2018

It is noteworthy that the accumulation of transactions in the bitcoin manule 12 July said the Whale cryptomnesia Panda.

The current #Bitcoin mempool currently has about 3000 txs in it which are in total 41 mb… all for 1 sat. Might be some major consolidation going on again, or something else… 🤔 pic.twitter.com/RhTpnS2khs

— WhalePanda (@WhalePanda) July 13, 2018

One Twitter user said that the reason could be the consolidation of the UTXO major exchange for the rational use of space in the unit and management komissionnye.

Various exchanges do it quite regularly now.

I see this as a very healthy use of block space — when it’s quiet, defragment your utxo set at 1sat/byte. So when fees are higher you can make smaller (and cheaper tx). Each responsible business should do that.

— Irek Zielinski (@irek_zie) July 13, 2018

CEO Bitrefill Sergey Kotlyar suggested that the accumulation of transaction probably Coinbase.

This one https://t.co/9NDoOfifhT

— Sergej Kotliar (@ziggamon) July 13, 2018

We will add that in the network of bitcoin is increasingly mined blocks that are larger than 2 MB.

Look at all these 2MB blocks being mined today. 😀👍 #bitcoin #bitcoinisscaling #segwit pic.twitter.com/8EGW1awJTg

— A v B 🇭🇷⚽🏆 (@ArminVanBitcoin) July 15, 2018

Recall that the average size of blocks in the bitcoin network began to exceed 1 MB.

Source