Cryptocurrencies with SegWit and LN-style off-chain payment solutions

[d5000]

This is an (incomplete) list of altcoins that have implemented Segwit and are implementing off-chain payment solutions like the Lightning Network that need a malleability fix to work.


Lightning Network (mainnet testing)

- Groestlcoin (Eclair)
- Syscoin (Eclair)
- Bitcoin (c-lightning, Eclair)

Segwit activated:

- Groestlcoin (info here, first coin with Segwit, locked in & activated end of January 2017)
- Syscoin (activated as a hard fork on March 31)
- Bitcore (adopted from the start, still very small)
- Digibyte (activated)
- Monacoin (activated)
- Litecoin (activated)
- VertCoin (activated)
- NAVcoin - (probably) first Proof of Stake coin with Segwit
- Viacoin (activated in July?)
- Bitcoin (finally activated on August 24, 2017)
- Creativecoin (Dec. 2017)
- Myriadcoin (Jan. 2018)
- GramCoin (March 2018)
- BSD Bitsend ?

In adoption phase (signalling):

- Bitmark? (BTM)

Planned

- MAC Machinecoin (coding Done)
- Woodcoin (segwit-supporting client available)
- Belacoin  (planned)
- iXcoin (no exact info found) ?
- i0coin (planned, "next update")
- Stratis (no exact info found) ?

Update January 2018:

If you want a coin to get added, please provide me:
- the name of the coin, obviously
- the currently active Bitcointalk thread
- the date (month is ok) when Segwit was activated or has been "locked in"; if it has been locked in provide me the approximate activation date.

I won't add more coins to the "Planned" nor "Signalling" sections and add only coins where it is already activated or locked in.

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Stratis

[Vlad2Vlad]

From what I've seen so far:

Litecoin, Viacoin, iXcoin, i0Coin.  In that order. 

I'm sure there will be others. 

[PsychoticBoy]

Groestlcoin (GRS) was the first with SegWit activated.

[Vlad2Vlad]

Groestlcoin (GRS) was the first with SegWit activated.

Someone already did it?  And the price didn't skyrocket?  Dude, that sucks!!!

[PsychoticBoy]

Groestlcoin (GRS) was the first with SegWit activated.

Someone already did it?  And the price didn't skyrocket?  Dude, that sucks!!!

Groestlcoin is also the only altcoin that has NEVER been pumped

Here some more info about Groestlcoin activating SegWit: https://bitcointalk.org/index.php?topic=525926.msg17607303#msg17607303

Now is your chance to buy Groestl cheap, price on Bittrex is 0.00000320 btc.

[Vlad2Vlad]

Groestlcoin is also the only altcoin that has NEVER been pumped

Here some more info about Groestlcoin activating SegWit: https://bitcointalk.org/index.php?topic=525926.msg17607303#msg17607303

Now is your chance to buy Groestl cheap, price on Bittrex is 0.00000320 btc.

I'd definitely buy some but I'm on the run 🏃.

FYI, iXcoin has never been pumped either.  Just the 2013 spike like ALL coins had and a few stress tests I ran.  It's gonna be 6 years old in April - oldest scam/pump-free coin in the world. 

[nemesisDF]

Which cryptocurrencies are planning or already implementing SegWit?

I would like to build a list of them.

Until now, I know:

- Bitcoin (adoption unsure, still low miner support)
- Litecoin (signalling just started yesterday, too early to draw conclusion)
- Viacoin (planned, but still no signalling)

Are there more? I'll update the OP if I find more (even the smallest ones), feel free to suggest some. (If there is already a thread about this, point me to it).

VertCoin is based on their latest blog: https://vertcoin.org/wp/blog/

The Vertcoin Development team has been busy the last month working on updating our wallet to the latest Bitcoin core with Segregated Witness (segwit). If you’re not familiar with segwit you can read the benefits and purpose here ( https://bitcoincore.org/en/2016/01/26/segwit-benefits/). With that being said we are excited to announce that everything is working as it should on the test-net ,and if time permits we should have the new release ready sometime early next week, if not sooner. This should serve as a heads up to miners and pools since we will need a 75% consensus for segwit to activate. Please spread the word.

Thanks,
Eric (etang600)

[Vlad2Vlad]

Soon every TurdCoin 💩 will upgrade to segwit so it won't mean much.

[d5000]

Thanks! Have updated the post.

- I've not found much info about Ixcoin, so it may be still in the planning phase.
- In the case of Groestlcoin: Is it only already in the "signalling phase" (like BTC) or Segwit already was adopted by miners (75% of the blocks mined in the last 2016 block phase)? It seems a bit unclear as in the thread there is no concrete info, but for now I put it in the "Activated" section.

[jackielove4u]

- In the case of Groestlcoin: Is it only already in the "signalling phase" (like BTC) or Segwit already was adopted by miners (75% of the blocks mined in the last 2016 block phase)? It seems a bit unclear as in the thread there is no concrete info, but for now I put it in the "Activated" section.

It was 95% of the blocks mined in the last 2016 blocks, like Bitcoin has.

CSV, Segwit and BIP65 timeline:
• Signal: Miners will be able to signal that they are willing and able to enforce csv, segwit and BIP65 starting at the beginning of the first 2016 block retarget period on or after 21 January 2017 (UTC). In short signalling started on block 1435392 which was on 21 january 2017
• Lock-in: Once 95% of blocks in a 2016 block long period have signaled that their miners are ready to enforce csv, segwit and BIP65 then csv, segwit and BIP65 will lock-in – meaning that unless the blockchain is rolled back at that point, csv, segwit and BIP65 will become active. In short Lock-in happend on block 1437408 which was on 23 january 2017
• Activate: After another 2016 block period, csv, segwit and BIP65 will activate, allowing miners to produce blocks containing csv, segwit and BIP65 transactions on Groestlcoin’s mainnet. In short Activate happend on block 1439424, which was on 24 january 2017.

So yes, it is activated since 24 january 2017.

[elbandi]

could someone explain why segwit good for an altcoin?

bitcoin blocks almost full, they have to do something to put more tx into one block. But in altcoins blocks are empty....


Elbandi

[X-ray]

could someone explain why segwit good for an altcoin?

bitcoin blocks almost full, they have to do something to put more tx into one block. But in altcoins blocks are empty....

The litecoin blocks are 4 times faster rather than bitcoin, there is no serious problem needs to be fixing by the dev with the SegWit implementation, at least that's including on the dev journal to encouraging the lost demand.
Segwit = Hype, does it real? See it in the future.

SegWit is a way to fixing the blocksize problem on bitcoin.

[d5000]

Thanks jackielove4u! So Groestlcoin seems to be the first cryptocurrency with Segwit activated.

Any in-detail info about the other cryptocurrencies in the list is greatly appreciated!

could someone explain why segwit good for an altcoin?
Elbandi

Segwit also fixes the transaction malleability problem and makes advanced functions like Atomic cross-chain trading and payment channels with instant payments (Lightning Network) way easier to implement. So in my opinion, it's a step towards the future of cryptocurrency.

[Grdas130979]

Did Litecoin really nees segwit or its a test for its big brother BTC ?

[topesis]

Did Litecoin really nees segwit or its a test for its big brother BTC ?

You can even have a solid argument for Litecoins but other coins you ask yourself why do they even need SeqWit, some don't even have a daily trade volume of $1000, so why do you want to implement SeqWit

[d@nte]

I did not know that so many cryptocurrencies were already so far advanced with respect to SegWit implementation. Certainly it is worth researching the proposal of each of these cryptos and what plans the developers have for the future. I think the hype will intensify after big coins, like Bitcoin and Litecoin, are closer to activating SegWit.

[johhnyUA]

Segwit also fixes the transaction malleability problem and makes advanced functions like Atomic cross-chain trading and payment channels with instant payments (Lightning Network) way easier to implement. So in my opinion, it's a step towards the future of cryptocurrency.

As i know, transaction malleability problem was fixed after BIP66 at 2015.
Segwit it's just one of the ways which trying to solve one of the hardest bitcoin problem - scaling (and some others little problems). Another way it's hardfork with block increasing.

[seven.71]

Did Litecoin really nees segwit or its a test for its big brother BTC ?

You can even have a solid argument for Litecoins but other coins you ask yourself why do they even need SeqWit, some don't even have a daily trade volume of $1000, so why do you want to implement SeqWit

for all of them pure simple hype, thats the only reason it has been implemented, litecoin also

Although there is disintegration seen in upgrades for Bitcoin miners, the proposal to use SegWit in litecoin benefits and the aim is for the market as an alternative to Bitcoin litecoin in key markets.
litecoin deployment to SegWit can make increases in value due utilities and this can make the miners back their positions.

[SHAWN-MIDWAYS]

Did Litecoin really nees segwit or its a test for its big brother BTC ?

This should really be a test of segwit on ltc though non of the known altcoins experience transaction  malleability and will not be feasible for bitcoin to adopt it at the moment.