Questions tagged [segwit2x]

SegWit2X was a failed hard fork attempt designed to increase the block size limit.

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segwit compatilibity bc1 and 3 bitcoin wallet?

I would like to know what's the better aproach for upgrading from a legacy address to a segwit one, but there are two type of segwit as P2SH starting with 3 and Native SegWit (bech32) starting with ...
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On SPV clients and Segwit

An article released by Blockstream claims that after Segwit, SPV clients can verify that transactions have been accepted by the network without having to download the signatures/witness-data. I'm ...
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Segwit transaction size not smaller

In this transaction; https://blockchain.info/tx/573700fe19dbc926d037ee67dbe882ebcf3f765f1a3fcc9577665ba40554485f All of addresses are segwit. According to my research this transaction size must be ...
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How to recieve bitcoin fork (segwit2x) on binance?

I cannot find any area on Binance.com that shows the new bitcoin hard-fork (segwit2x) funds, any input?
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After the fork, can I send my BTC out of Binance when it has not yet implemented the B2x wallet?

Binance has committed to support the B2x fork. Before the B2x fork, I sent my BTC to Binance to wait for the fork. A day after the fork and after it has crossed the block, can I send the BTC from ...
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How to check if the segwit2x fork was adopted?

SegWit2x was scheduled to happen today at BTC block 501451 (http://b2x-segwit.io). How do I check if the fork was adopted and by whom? Electrum wallet docs (http://docs.electrum.org/en/latest/...
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Can I claim Segwit2X with a blockchain.info wallet?

I have a blockchain.info wallet, but I am not sure whether I would be able to claim segwit2x? Thanks in advance.
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Who witnesses a Segregated Witness transaction and what incentive do they have to witness the extended block containing signatures?

This video claims Segregated Witness is insecure because no one has an incentive to process (witness) the extended signature block. https://www.youtube.com/watch?v=VoFb3mcxluY It claims that as the ...
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How does a SegWit node verify a block?

I know that non-SegWit node could verify a block without witness. For SegWit node, is witness necessary to verify a block? Because I know witness are committed as wtxid merkle node in coinbase. What'...
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How to send my 2X coins to an exchange from a private BTC wallet I had during the fork?

So, I have a private Bitcoin wallet for which I own the private key, it is not in an exchange. Despite the segwit2x fork was canceled, some people are still trading it and the segwit2x fork seems to ...
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After being officially canceled, SegWit2x is live. Will transaction replaying be massive ? If yes what does this means?

As you know, segwit2x was officially canceled last week, but some miners decided to still go forward today, and some exchanges like coinbase plan to support the hard fork. So things will happen like ...
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Is segwit2x really called off?

Is the segwit2x called off for sure for now? I see there is still 53.9% intention as of 15th Nov for Segwit2x (Source) I know this is not sure that it is called off forever, but I just want to know ...
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Who decided that segwit2x isn't going to happen?

I have read this article: https://lists.linuxfoundation.org/pipermail/bitcoin-segwit2x/2017-November/000685.html Since bitcoin is a decentralized system, who's decided that segwit2x isn't going to ...
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Does Bitfinex support B2X? Will BTC holders at the moment of the fork be credited B2X on a 1:1 ratio?

I know, we should hold them in cold storage, etc, but I can't know for sure whether Bitfinex will credit the B2X on a 1:1 ratio for BTC holders. Thank you for your answers! David
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What is the difference between BTC and Bitcoin Core?

To my understanding BTC and bitcoin core are the same, when mentioned against S2X/B2X. Is that the case? (Bitcoin Core is BTC in the post segwit2x world?)
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Will coinbase.com have replay protection for receives?

According to this, "Bitcoin Segwit2x does not have any built-in replay protection, but Coinbase has implemented our own replay protection system. You can safely send any BTC or B2X from Coinbase ...
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Split coins in wallet using coins from coinbase.com

Tell me if this is a valid / secure idea to split my coins in my wallet after a hard fork without replay protection (e.g. segwit2x). I have read the question here, but I want to clarify how to use it ...
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How will the Ledger Half Custodian SegWit2x coin split work?

This may be jumping the gun but does anyone know how the "half custodian" approach for splitting SegWit2x coins that's mentioned in this Ledger blog post will work? The relevant text from the blog ...
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How to access my Segwit2X currency using private key after the hard fork?

How can I access my second Segwit2X currency, if I own private key, but my wallet does not support Segwit2X currency? Is that private key universal for every wallet? I mean if I can access my BTC or ...
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Limit tx to SegWit1x or 2x chain

Given the lack of replay protection when the SegWit2x fork splits off a different chain is there a safe mechanism to broadcast a tx so that it will only be accepted by the 1x or 2x chain nodes? If ...
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Which full node implementation(s) supports SegWit2x?

I'm running a full node, because I want to support the Bitcoin network, and because I'm interested in the backend mechanisms in Bitcoin. Now, SegWit2x is approaching. I believe it's important for ...
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Is there an oveview of organizations support of segwit/segwit2X?

I'm trying to get an overview of what parts of the ecosystem that support what, preferably by economic activity. Is there any good lists or overviews?
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Will there be a hard-fork with BTC and B2X?

Will there be a hard-fork between B2X and BTC? How can we know for sure? When will it occur? Thank you! David
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Share blockchain data between bitcoin-core and btc-1

I am currently running a BTC-1 node and would like to setup an additional core node before the November fork. Ideally, I would avoid the need to resync the entire blockchain again. Is it possible for ...
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Where's the code related to block 494784 for segwit2x?

I read everywhere that segwit2x activates at blocks 494784, around 15 or 16 of November. I did just checkout the segwit2x codebase doing: git clone https://github.com/btc1/bitcoin And I can see ...
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If Btc2x doesn't have replay protection does that mean all transactions can be automatically replayed in btc2x?

I believe btc will have a lot higher economic activity at the time of the fork. If anyone sends funds in btc, what stops someone who don't like btc2x to just replay that same transaction on btc2x? ...
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Which branch of bitcoinj should I sync to?

I am experimenting with Bitcoinj to design a stable node that is synced. Older versions of bitcoinj seem to drop connections and stop syncing. I currently see the following branches (see screenshots)...
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What was the number of the block in which SegWit got activated? And first transaction?

It was definitely on August 24th 2017, but not sure about the block number. Many sources reference block 481,822; but others state 481,824. Also, even if this was the first block to allow segwit ...
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Will I be still getting segwit2x coins if I store BTC in my desktop BTC wallet

I'm with three exchanges, one says they don't support BTG and therefore user should withdraw their BTC before Nov 16th's fork takes place. Another one says they will issue 1:1 segwit2x. The last one ...
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SegWit 2x what is it really?

SegWit 2x anounced not so long time ago. Is it true, that SegWit2x take more network traffic and disk space? So what are the advantages of it's integration?
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How does the Segwit2x fork implement replay protection?

The creators of the Segwit2x fork claim that they are working on some sort of replay protection. What replay protection do they have and how does this replay protection work?
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At the moment SegWit2x forks, will mining be way easier?

Is there a need for people to run full nodes that are mining on CPUs when/if the SegWit2x fork occurs? Will almost all of the mining power be switched over to SegWit2x?
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How do I store coins during the bitcoin segwit2x hard fork?

Where should I securely store my coins during the fork? A Legacy address or a Segwit address? I keep them on a Segwit address right now but I want to be sure that the fork won't affect my funds if ...
fedesox's user avatar
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Do I need to run a full node before the 2X fork?

There is a meme out there that goes like this: "Bitcoin Cash taught people they need to own their own private keys, segwit 2X will teach people they need to run full nodes" Do I need to run a full ...
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Segwit2x/btc1 block header changes: wipeout protection for SPV nodes?

Are there any current plans for segwit2x/btc1 to change the block header in a backward-incompatible way, either permanently or with a signal block (e.g., "hard fork bit"), before it goes live? This is ...
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Question about Bitcoin Licensing

Why is bitcoin using MIT? From what I understand, MIT doesn't care about trademarks, whereas Apache2 will prevent from using the BTC name. This should help identify the difference with the looming s2x ...
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What does the segwit upgrade path look like?

I've been wondering what the upgrade path for the ecosystem would look like to increase the number of segregated witness transactions. What should wallets do and what should exchanges do and in what ...
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What is the difference between Bitcoin Core and UASF?

I am a little confused about what the actual difference is between Bitcoin Core and UASF, are they both only for SegWit? If so who is then for SegWit2X?
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Where can I buy bitcash

Is there any where I can buy bitcash ahead of the fork? Or do I need to keep my bitcoin in wallets that won't signal SegWit?
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Can someone explain to me all of the scaling proposals?

What are Segwit, Segwit2x, UASF, BIP 141 and 91, emergent consensus, and core/Non-EC? All of these terms are confusing and I don't understand what they all signify. Also, could you give me a ...
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What do I support with Bitcoin Core Version 0.14.2

At the moment I'm following the discussion about BIP-141, BIP-148, SegWit and SegWit2x (NYA). But I'm confused. I'm running Bitcoin Core Version v0.14.2 as a full-node. It's currently downloading the ...
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Can BIP91 cause a chain split?

BIP91 forces BIP141 signaling, the blocks that do not signal BIP141 will be rejected by those who are pro-BIP91. The minority of miners that do not support BIP91 (and by extension BIP141), could start ...
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Can there be a half segwit, half normal Bitcoin transaction?

I was wondering if it's feasible to compile a bitcoin transaction that is somewhere in between (segwit and non-segwit), maybe one of these scenarios. I'll call the non-segwit inputs, normal inputs ...
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How will the 2mb hard fork be implemented?

With regards to SegWit2x/BIP 91. If SegWit is successfully implemented around Aug 1 what is required from the miners in November to implement the 2mb hard fork successfully? Is it also a minimum 80% ...
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BIP91 Activation Period

I understand that BIP91 needs 269/336 signaled blocks. My question is is it a rolling window of any 336 blocks or are there activation periods of 336 blocks that start and end at predetermined block ...
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When is the earliest we will see SegWit transactions on main net

I am assuming that only after SegWit activation SegWit txs will be on mainnet, what i cannot determine is the date for that event. Can anyone help? So far i have seen references to late August.
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Where can you see current Bitcoin miners signalling SegWit2x?

Hi I know you can view current miners signalling 'intent' to implement SegWit2x on coindance https://coin.dance/blocks . But is there a live website that show miners actually signalling SegWit2x?
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What happens to my bitcoins if a hard fork occurs?

It seems that on August 1st, there will be a hard fork on Bitcoin. This will mean that instead of 1 coin we will end up with 2. Without going into the discussion about whether it will or not occur. ...
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Why is there so much uncertainty with SegWit2x when it has 85%+ mining support?

I'm confused about the uncertainty and pessimism about the Bitcoin scaling debate. I see coindance https://coin.dance/blocks is signalling a 85% support for SegWit2x. As far as I know SegWit kills 2 ...
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Segwit2x and Trezor

I got my bitcoin in my Trezor cold wallet. Before the imminent implementation of Segwit2x I have to do something in my Trezor, can this affect my BTC? I look forward to your help, thanks and regards.
Jose Manuel's user avatar