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Questions tagged [block-size-increase]

This tag collects questions discussing the plans and arguments around the Block size limit increase from 1MB.

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What are Forward Blocks?

Mark Friedenbach says "Bitcoin’s Block Size Can Be Increased Without Hard Fork". Can someone ELI5 what are Forward Blocks?
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1answer
43 views

Block Size Hurdle

Given that Bitcoin has a 1 MB block size limit (approx. 2k transactions processed every 10 minutes), would I be correct in saying that as soon as the world will start using Bitcoin more frequently to ...
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Creating lage blocks with multiple transactions in regtest mode?

I want to create blocks with multiple transactions in regtest mode. I want to test propagation with blocks of size 1-2 MB on the dash network. ./dash-cli -regtest -daemon -debug -port=8330 -rpcport=...
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2answers
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Bitcoin.org developer reference outdated?

i just can't understand if bitcoin.org developer reference is outdated or not. for example here (https://bitcoin.org/en/developer-reference#raw-transaction-format) we can see: "As of Bitcoin Core 0.9....
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2answers
595 views

Any methods or tech to reduce the size of blockchain?

Are there any techs/methods applied or going to be applied on the bitcoin network to reduce the size of blockchain. It is really a burden for peroson to run a full-node especially on vps. Or what ...
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2answers
107 views

How can low latency and high scalability be achieved with increased block size in BTC?

One of the solution to address low latency and high scalability in BTC is to increase block size. A single block takes 10 min on average for proof-of-work. Increased block will also take same time for ...
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1answer
110 views

Does Bitcoin Cash validate the fears about larger block sizes?

I read on this forum that a larger block size wouldn't necessarily mean less blocks since blocks are mined every ten minutes, and this is why block size should remain smaller -- Wouldn't a full ...
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3answers
117 views

Can we drive the bitcoin transaction fee arbitrarily close to zero by keep increasing the block size limit?

Can the bitcoin scalability problem be solved in the long run by increasing the block size limit (either dynamically or statically)?
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1answer
463 views

Why increasing block size increases centralisation?

I understand this is a contentious question. Help me understand Why increasing block size increases the risk of centralization? I don't understand what Antonopoulos meant when he said few people can ...
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1answer
124 views

Blockchain sizes, and external devices

This question is rather technical. Blockchains tend to grow. Specially well-known blockchains like Bitcoin. I would like to store a certain blockchain on an external device (e.g. 1TB disk space), but ...
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3answers
631 views

What happens when more transactions are created than confirmed? [duplicate]

I am surprised that there are 220k unconfirmed transactions in the blockchain. And more transactions are getting queued in every minute. If 6 blocks are mined in every hour then in an hour only 12000 ...
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3answers
459 views

There's talk of increasing the blocksize - if this can be achieved - does this mean that the 21m btc limit can also be changed?

My understanding of the blocksize debate is that it would require 51% consensus to change the algorithm and accept the new blocksize. If the algorithm can be changed like this - would the exact same ...
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1answer
55 views

Is there a way to predict somehow the required storage for a specific blockchain?

I'd like to store a blockchain or two in my computer. Blockchains are pretty heavy (I took over 3hs to download GameCredits blockchain, and is one of the smallest blockchains, I guess). My main fear ...
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2k views

What is the difference between on-chain scaling and off-chain scaling?

What is on-chain scaling and off-chain scaling? What is the core difference between on-chain scaling and off-chain scaling?
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1answer
287 views

Why is the block size limited to 2mb? [duplicate]

bitcoin is experiencing mass gross. Even some local businesses around me are starting to accept bitcoin payments. Of coarse, with new growth availability problems arise; and one is the slow and high ...
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1answer
102 views

Will 2mb blocksize mean double as many transactions?

If the blocksize is increase to 2MB will that mean twice as many transactions? Basically how much of the space is used on the standard variables found in the block?
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1answer
91 views

Bitcoin Vs Bank

Bitcoins are viewed as an alternative to traditional banking. There isn't a peer to peer passage of bitcoins. Like the banking agency is a mediator between the two people sending and receiving money; ...
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179 views

How much will Segwit increase the number of transactions that can fit in each block?

How much weight would the witness data have on the total block size? What is the culminating effect of this on the number of transactions that can fit into each block? Thanks in advance :)
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1answer
96 views

Why does a larger block size infer a bigger attack vector

I have read this in several articles that larger block sizes makes adversarial attacks easier. What I wonder is why is that so obvious? is it because in a larger block the number of transactions could ...
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1answer
141 views

Blocks, scaling and segwit question

Somewhat new to bitcoin, trying to understand the tech... For my understanding all the transactions go into a block, every 10 minutes the block is mined and all transactions in it are confirmed. With ...
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1answer
1k views

What is “Emergent Consensus” as a Mining Pool Support proposal?

I would regularly check coin.dance/blocks for updates on Segregated Witness and Bitcoin Unlimited popularity among miners. Another proposal called "Emergent Consensus" has appeared. Could someone ...
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1answer
700 views

Why not decrease the difficulty to increase capacity?

There is a persistent debate in Bitcoin about increasing the capacity. The popular idea seems to be to increase the blocksize from its current 1MB to push through more transactions per block. But ...
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1answer
2k views

Is SegWit a blocksize increase or more efficient use of blockspace?

This question gets asked frequently on reddit, and I think it would be beneficial to have a canonical answer here: Is SegWit a blocksize increase or more efficient use of blockspace?
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3answers
244 views

Why would I trust a cryptocurrency that allow only 3 transactions/s?

I noticed that the recent blocks usually includes about 2k transactions with is almost the upper limit (max. 1 MB per block). From this I can see that bitcoin would never allow more than 2000 / 10 * ...
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In what ways was the “Hong Kong Agreement” infringed upon?

There is a favorite talking point in some parts of the community claiming that this or that party broke the Hong Kong Agreement. Mentioned are for example: Delivery time of SegWit Delivery time of ...
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1answer
218 views

Why not multiply “six confirmations” and divide Time-Between-Blocks and Reward by the same factor?

It seems that choosing a good factor to use to expand Bitcoin's capacity is a good idea. The software would divide some of its calculated values by this factor, such as the target time between blocks ...
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1answer
860 views

Why OP_RETURN should be used instead of raw data?

I've read this great Explanation of what an OP_RETURN transaction looks like and now I have only one question. Imagine that someone want to store some data in Bitcoin's blockchain. Why should he use ...
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2answers
76 views

Is the block size limit miners'-only thing, or should users participate?

Lately I see a lot of back and forth between proponents and opponents of block size increase debate. I have made up my mind about this, but neither side provides any directions on how I can indicate ...
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1answer
575 views

Reduce bitcoin blockchain size

I have a freebsd server with a bitcoind server. But the blockchain is getting to large for me. So I just bought some new sas drives so I can keep it up. I now have 218GB of total space. 40GB is for ...
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1answer
459 views

What is the Lightning Network proposal? What problem is it trying to solve?

We already have a few questions about technical details of Lightning network, however, … What is the Lightning network proposal in the first place? What problem is it aiming to solve?
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1answer
110 views

Does any current SegWit or blocksize increase proposal also seek an increase in the OP_RETURN byte limit?

Does any current SegWit or blocksize increase proposal also seek an increase in the OP_RETURN byte limit? https://en.bitcoin.it/wiki/OP_RETURN Are there any current pull requests that seek an ...
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1answer
1k views

How many more transactions per second will be possible with SegWit?

On a percentage basis compared to the current theoretical limit how many more transactions per second will be possible after SegWit? Will the answer to number 1 scale linearly with block size ...
4
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1answer
408 views

What is the status of the “Hong Kong Agreement”

Are the bullet points below still valid? We understand that SegWit continues to be developed actively as a soft-fork and is likely to proceed towards release over the next two months, as originally ...
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0answers
96 views

A common criticism of Segregated Witness is that it is “unnecessarily complex”. Why is it chosen over alternatives?

Segregated Witness (SegWit) is well-along the way to being implemented and deployed as a soft-fork. Facts: SegWit eliminates most forms of transaction malleability. Discounts input scripts in ...
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1answer
581 views

Why would increasing the Bitcoin block size lead to a more centralised system?

Why does Bitcoin Core contributor Peter Todd think that increasing the Bitcoin block size would lead to a more centralised system? “The system doesn’t scale, and you just have to accept that and do ...
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1answer
63 views

Does the node count reflect the mining power support of different Bitcoin versions?

In the current Bitcoin blocksize debate, xtnodes.com shows a pie chart of nodes running different implementations of Bitcoin; Classic, XT and Unlimited, etc. Does this node count in any way reflect ...
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1answer
223 views

Why do bigger blocks make it more expensive to run a full node?

Does it cost more storage? For the transaction verification, to which extent bigger blocks make it more computational intensive? In terms of computational complexity, is the verification process a O(n)...
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2answers
402 views

How thoroughly has Segregated Witness been tested?

I've encountered claims that Segregated Witness was "not really tested" and is being "rushed". It is my understanding that SegWit had been running on Elements for more than half a year already, and ...
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2answers
812 views

Block size depending on transaction count

It's widely known that Bitcoin has a limit of 1 MB per block. However, the average block size is currently about 0.6 MB: (original data) According to this thread, Bitcoin transactions has an ...
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2answers
211 views

What are some essential features of Bitcoin classic?

I already know about the 2MB block size increase. I would like to know more about who controls the code base, what the other proposed changes are, and those kinds of things.
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615 views

Why is it dangerous to hard fork the Bitcoin network?

In the blocksize debate it is often stated that hard forks are dangerous. This is sometimes supported by the claim that "people may lose money and must be protected". And that it's impossible to ...
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3answers
343 views

Does Blockstream have a revenue model that can only exist in a small block environment?

Anyone reading discussions in the Bitcoin scene these days probably has seen the following argument (or similar): "Blockstream is preventing a blocksize increase because their products can only ...
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2answers
418 views

How relevant is the Chinese Great Firewall in the blocksize debate?

Mike Hearn said the following: The reason the true limit seems to be 700 kilobytes instead of the theoretical 1000 is that sometimes miners produce blocks smaller than allowed and even empty blocks,...
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What was the nature of the temporary 500K block size limit imposed by Bitcoin Qt 0.8.1?

BIP 50 describes the temporary steps taken to correct a chain split in March 2013. One of them was: Limit the maximum block-size created to 500,000 bytes https://github.com/bitcoin/bips/blob/...
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2answers
310 views

Do larger blocks make it harder for smaller miners to compete? Why?

During the discussion of Bitcoin’s scalability, I’ve read the statement that "Large miners benefit from larger block sizes, because it makes it more difficult for small miners to compete." [1] In ...
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1answer
963 views

What is “segregated witness” and how can it improve network scalability?

I've just heard about it, and it is claimed to be a "turning point" in the block-size debate. What is "segregated witness?" how does it work? How can it be used for improving network scalability? ...
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What are the various block size increase proposals? [duplicate]

I'm aware of BIP101 and BIP100, but I'm sure there are others. I would like a simple table of comparison on the block size increase schedule of each one (including the status quo) in one place.
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1answer
196 views

Why can't Bitcoin use a very large blocksize such as 1GB?

In the current blocksize limit debate multiple proposals have been made. Bitcoin XT implements an increase to 8MB right away plus a doubling every two years. A competing approach used 20MB. What ...
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1answer
194 views

What is bitcoin core developers solution to the increasing number of transactions?

I was reading that BitcoinXT is created to increase the blocksize to accommodate increasing transaction volume, but bitcoin core developers were against to it as it make the currency more centralized. ...
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1answer
110 views

Could increasing Block size solve the “End of mining” issue

Disclaimer: I am new to this forum and Bitcoin/cryptocurrency in general. After all 21 million bitcoins are released into circulation, it seems that the incentive to mine is gone unless transaction ...