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Bitcoin's main network has undergone important changes in recent days thanks to the greater adoption - even without being massive - of SegWit. The first blocks of 2 MB were recently mined and there has been a decrease in transaction fees, positioning at less than $ 12 for a confirmation of 20 minutes, currently.

An active user of the Bitcoin ecosystem known as Armin Van Bitcoin on the Twitter social network is one of those who have echoed these important milestones of the network. Based on graphs from the SegWit adoption explorer, SegWit Charts, Van Bitcoin reported that 2 MB blocks were mined for the first time in the history of Bitcoin. Block 505.225 being the one that broke the barrier, with a size of 2,177,625 bytes, which was later surpassed by block 505,253 (with 2,217,342 bytes), the latter becoming the largest block in the chain, until now .

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Among interesting details of these blocks it can be mentioned that the number 505.225 registered a segregated token data size of 1,572,484 bytes, corresponding to 72.21% of the total block size, containing 180 non-SegWit transactions and 45 SegWit transactions. For its part, the largest block of Bitcoin so far (505,253) confirmed 198 non-SegWit transactions and 54 SegWit transactions, occupying the data of the signatures about 1,625,515 bytes, which represented 73.31% of the total size of the block.

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Armin Van Bitcoin has also been monitoring the behavior of the commissions, stating that they are falling considerably. According to some explorers, the average of commissions for bitcoin transactions, of about 226 bytes, is close to 6 dollars on January 23, almost six times less than what the tariffs were on December 23, when they reached average rate of about $ 34,095.

Currently, the rates are in the order of 240 satoshis per transaction bytes, with an approximate confirmation time of 40 minutes and according to Jochen Hoenicke's graphs, the commissions of pending transactions, the number of unconfirmed transactions and therefore the The size of mempool has been decreasing during this last week.

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Recall that with the update of SegWit, in the legacy nodes (or inherited nodes) the data of the signatures are eliminated and the size of the blocks does not exceed the limit of 1 MB, while in the SegWit nodes they can have more than 1 MB including the data of the firms, allowing more transactions to be added in the blocks. In this way, blocks mined in legacy nodes and SegWit nodes are restricted by an aggregate property with SegWit, called block weight (block weight) that can reach up to 4 MB per block.

Larger blocks without the need for a strong fork (Hard Fork) that left out the nodes inherited from Bitcoin have been possible thanks to the activation of SegWit. Despite all the benefits involved, many services have left it "segregated", claiming different reasons, since this protocol is optional and no service is obliged to implement it, unless users so demand.

Despite this, the current commissions are still high if we check the Bitcoin commission history, but the fact that they are going down is reason for celebration for bitcoiners, of which some have not only been organizing to put pressure on households of change and portfolios that have not yet implemented SegWit, but are already testing the technology that is being prepared to improve the scalability of Bitcoin: Ligthning Network (LN).