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Questions tagged [soft-fork]

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What's the segwit transaction serialization “flag” field for?

According to bip 141, the segwit transaction serialization format (used to compute the wtxid) is: [nVersion][marker][flag][txins][txouts][witness][nLockTime] The bip mentions that the flag field ...
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BIP 144 transaction format and soft-forks and old nodes

I was trying to manually parse a raw Bitcoin transaction in order to better understand how it works. This is how it starts: "0200000000010141035625cd030eca667c95d1729a" I think I've parsed the Tx ...
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3answers
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Would it be possible to create a soft-fork for reducing miner reward?

Context: There is a bet going on r/bitcoin about the possibility of doing a user activated soft fork for reducing current miner reward to 0.25 BTC. One of the users says the bet had two points: the ...
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1answer
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how to prevent losses after a hard or soft fork

i learned about hard and soft forks from this question; now i have a basic understanding about forks; but the answers of that question did not say what happens to transactions on the stale chain; if i ...
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2answers
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What happens to old transactions in case of a fork?

I'm confused about forking. What happens to the 'old' version of a blockchain and related transactions/data in case of a fork. Can they still be deleted or does the new branch still depend on them to ...
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1answer
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How to fork a cryptocurrency [closed]

I have cloned a coin and changed some variable to make it my own coin. I have launched it and have a few mining pools mining my coin. Going through the code I notice I have an error and the reward ...
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3answers
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Why is a softfork unable to divide the network?

I was wondering why a soft fork cannot in principle divide the Bitcoin network as a hard fork can. I understand that a soft fork, by definition, involves only tightening the consensus rules, but the ...
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2answers
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How do the nodes divide after a hard fork? Soft Fork?

After a hard fork, what happens to the full nodes? Say 11,000 BTC full nodes existed prior to the fork. Do all 11,000 end up supporting both BCH and BTC? Or does BCH start building it's own network of ...
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Miners and Nodes: what are their role in protocol updates?

What are the different roles of miners and nodes for protocol updates (governance)? Which group is more important?
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1answer
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Is it possible to copy BTC balances of only some addresses while forking

I want to fork a Blockchain for private use, however I want to keep only balance of some known adresses for example if my adresses are @A(10BTC), @B(20BTC), @C(30BTC) I want to see same adresses with ...
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1answer
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bitcoin soft-fork how are the older nodes going to the verify new transaction?

I know soft fork which is compatible with older rules, but how are the older nodes going to the verify new transaction? for example : block#100 there is a new rule transaction. the miner who ...
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1answer
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Trying to understand SegWit

Can someone please help to confirm my understanding of SegWit ? My understanding: Originally, signatures are included in each block alongside each transaction, these signatures can be read by nodes ...
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What type of fork is Litecoin?

Is Litecoin classified as either a hard fork or soft fork? If neither, what is considered as?
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1answer
288 views

Is Bitcoin centralized by mining pools?

Before going to my question, I want to make sure the difference between a full node and a miner. Below definition might be too simple, but it is enough to ask my question. A full node is to store ...
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3answers
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Can old coins be banned by a soft fork?

Satoshi Nakamoto is supposed to own 1.000.000 bitcoins on a thousands of wallets, and most of them are untouched since early blocks. This stake can potentially flood the market, so miners could ...
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1answer
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What are the next forks of the Blockchain that have been announced?

What are the next forks of the Blockchain that have been announced? When will they occur? Where can you be kept updated? Many thanks for the replies! David
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1answer
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What if old blocks invalidate with soft fork?

Making a soft fork means making consensus rules stricter. Therefore there is a risk that some old blocks mined long down the blockchain get invalidated. How was this handled in bitcoin soft forks? ...
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1answer
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Which nVersion bit is the “hard fork bit?”

A 2015 draft BIP suggested using a "hard fork bit": The most significant bit in nVersion is defined as the hardfork bit. Currently, blocks with this header bit setting to 1 are invalid, since BIP34 ...
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1answer
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BIP9: What happens if I make a segwit transaction after lock in but before activation?

Will it be treated a anyone-can-spend or do the nodes enforce the new rules? Along the same lines, what exactly happens when we say a soft fork is activated? Are the enforced at the time SF becomes ...
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2answers
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Where can I find a complete list of Bitcoin forks (soft, hard, intentional and unintentional)

I was looking to study the history of Bitcoin forks including the 2013 incident that may or may not have been a Hard fork depending on your definition.
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1answer
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Why are pre-softfork blocks are not causing problems for post-softfork clients?

i read the answer to this question and got some new one. As far as i understand how a soft fork works, it means that post-softfork clients with new consensus rules accept only blocks that follow ...
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1answer
57 views

What is the limitations in Bitcoin's network that can't be change by a Soft Fork?

I'm trying to understand why (Or how) there is all kinds of different version for the Bitcoin nodes? I saw that if one node is following the Protocol limitations it can act as a valid node. Is ...
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1answer
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What are the risks of a lower-than-95% activation threshold for soft forks (particularly SegWit)?

95% seems exceptionally conservative, especially given the evidence of vetoing by a subset of Bitcoin miners. What risks does, say, 60% over a longer activation period hold vs 95% for SegWit?
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Is a replay-attack-proof soft fork possible?

Say there is a soft-fork. A is the chain that implements it, B is the chain that has a transaction that's valid pre-soft-fork, but invalid post-soft-fork, so it's following the old rules. We know that ...
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1answer
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How is SegWit a soft fork?

Reading this section of BIP144, I noticed the followng statement: Parsers supporting this BIP will be able to distinguish between the old serialization format (without the witness) and this one. ...