This is the most debated proposal for increasing blockchain performance (transaction processing throughput).
Currently, Bitcoin can process only about three to seven transactions per second, which is a major inhibiting factor in adapting the Bitcoin blockchain for processing microtransactions.
A Complete Guide to Understanding This Blockchain Concept
Block size in Bitcoin is hardcoded to be 1 MB, but if the block size is increased, it can hold more transactions and can result in faster confirmation time.
There are several Bitcoin Improvement Proposals (BIPs) made in favor of block size increase.
These include BIP 100, BIP 101, BIP 102, BIP 103, and BIP 109.
An excellent account of historic references and discussion is
In Ethereum, the block size is not limited by hardcoding; instead, it is controlled by a gas limit.
In theory, there is no limit on the size of a block in Ethereum because it’s dependent on the amount of gas, which can increase over time.
Why This Matters for Blockchain Technology
This is possible because miners are allowed to increase the gas limit for subsequent blocks if the limit has been reached in the previous block.
Bitcoin SegWit has addressed this issue by separating witness data from transaction data which resulted in more space for transactions.
Other proposals for Bitcoin include Bitcoin Unlimited, Bitcoin XT and Bitcoin Cash.
Readers can refer back to ,
Key Points to Remember
- Block size increase This is the most debated proposal for increasing blockchain performance (transaction processing throughput).
- Currently, Bitcoin can process only about three to seven transactions per second, which is a major inhibiting factor in adapting the Bitcoin blockchain for processing microtransactions.
- Block size in Bitcoin is hardcoded to be 1 MB, but if the block size is increased, it can hold more transactions and can result in faster confirmation time.
- There are several Bitcoin Improvement Proposals (BIPs) made in favor of block size increase.
Going Deeper: Advanced Concepts
For more information refer to the following links: https://www.bitcoinunlimited.info https://bitcoinxt.software https://www.bitcoincash.org
details. For more information refer to the following links: https://www.bitcoinunlimited.info https://bitcoinxt.software https://www.bitcoincash.org
Conclusion
Block size increase represents one of the many innovative layers that make blockchain technology so powerful and transformative. As distributed systems continue to evolve, a solid understanding of these core concepts becomes increasingly valuable — not just for developers, but for anyone building, investing in, or working alongside blockchain-powered systems.
Whether you are just starting your blockchain journey or deepening existing expertise, mastering these fundamentals gives you the tools to think clearly about decentralized systems and make smarter decisions in this rapidly evolving space.