Fractal Bitcoin officially stated that they are closely monitoring the incomplete block filling situation on the Fractal mainnet and will strive to improve network performance. Miners typically prioritize high-fee transactions and are subject to two block size limits: the maximum block size and the maximum number of SIG operations. When faced with a large number of high-fee MULTISIG transactions, blocks can hit the SIG limit and can no longer include additional transactions. Fractal Bitcoin has observed that certain random blocks are completely filled because they contain non-MULTISIG low-fee transactions, resulting in an increase of approximately 20% in total block fees. This situation is caused by the existing mechanisms of the BTC mainnet and is not a defect of the Fractal browser.

Odaily Star Daily News: Fractal Bitcoin's official statement on X platform states, "We have received some user feedback regarding incomplete block filling on the Fractal mainnet. We have immediately conducted an investigation. Here are more details about the incident: Miners typically prioritize processing high-fee transactions and are subject to two block size limitations: 1) maximum block size in bytes and 2) maximum number of SIG operations. When faced with a large number of high-fee MULTISIG transactions, the block can reach the 80,000 SIG limit and cannot include any more transactions.

Usually, Segregated Witness (SegWit) transactions consume 1 SIG, theoretically allowing a block to accommodate a maximum of 80,000 transactions (80,000/1=80,000). This is far beyond the standard, so the SIG limit is rarely observed in practice. Transactions containing MULTISIG consume 84 SIGs, which means that if a block is completely filled with such transactions, the maximum number of transactions in a block will be reduced to 80,000/84 = 952. This results in the block not being fully filled. We have observed that some random blocks are completely filled because they contain low-fee transactions that are not MULTISIG. These transactions fill up the remaining 75% of block space, resulting in a total increase of approximately 20% in block fees. This situation is caused by the existing mechanism of the BTC mainnet and is not a flaw in the Fractal browser. We will continue to closely monitor the situation and work towards improving network connectivity and performance."

{"translated":"Fractal Bitcoin's official statement on X platform states that they have received user feedback regarding incomplete block filling on the Fractal mainnet. They have conducted an investigation and provided more details about the incident. Miners prioritize high-fee transactions and are subject to two block size limitations: maximum block size in bytes and maximum number of SIG operations. When faced with a large number of high-fee MULTISIG transactions, the block can reach the 80,000 SIG limit and cannot include more transactions.\n\nSegregated Witness (SegWit) transactions consume 1 SIG, theoretically allowing a block to accommodate a maximum of 80,000 transactions. This is rarely observed in practice. Transactions containing MULTISIG consume 84 SIGs, reducing the maximum number of transactions in a block to 952 if the block is completely filled with such transactions. Some random blocks are completely filled with low-fee transactions that are not MULTISIG, filling up the remaining 75% of block space and increasing block fees by approximately 20%. This situation is caused by the existing mechanism of the BTC mainnet and is not a flaw in the Fractal browser. They will continue to monitor the situation and work towards improving network connectivity and performance.","status":"success"}

Fractal Bitcoin is closely monitoring the situation of incomplete block filling and is working to improve network performance.