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Topic: The Lightning Network FAQ - page 49. (Read 33677 times)

legendary
Activity: 1876
Merit: 3139
January 18, 2021, 03:07:14 AM
I'm trying to understand it, but I don't get it. Even if transaction(s) are signed in a multi-signature address, they still have to be broadcasted on-chain, so a very high fee must be paid. By who?

By the funder of the channel.

Second question, what if I pay with lightning network and before they are added to the blockchain, I spend them? Won't this make the signed transaction useless?

If the channel opening transaction is not confirmed, you can't use such a channel. Every time a channel is updated (either one spends/receives some coins or routes a payment), both parties sign a new commitment transaction which reflects the updated balance of the channel.
STT
legendary
Activity: 4172
Merit: 1462
January 18, 2021, 03:01:32 AM
Quote
Don't forget most withdraws on exchanges also are a profit center.
Definitely is that way, they allow deposits no problem but when people demand it back and just want any hassle over with thats when the fees come in and people are far more likely to take it without it hindering future usage of the exchange like deposit fees might discourage some.     The biggest use I've found for ETC the old branch of ETH was being common but also very cheap between exchanges, many of the other alts fail to do that or have spread margins too big to be worth it or just not common elsewhere to transfer.
   Meanwhile using a wallet is not a problem, it clears with really not much needed so the fee problem is a useful construct for many sites to gain minimum revenue from every user.   Eventually zero hassle has to be a thing for mainstream takeup.
legendary
Activity: 1512
Merit: 7340
Farewell, Leo
January 18, 2021, 02:44:49 AM
I'm trying to understand it, but I don't get it. Even if transaction(s) are signed in a multi-signature address, they still have to be broadcasted on-chain, so a very high fee must be paid. By who?

Second question, what if I pay with lightning network and before they are added to the blockchain, I spend them? Won't this make the signed transaction useless?

Sorry for the noob questions, I didn't need lightning network since I don't transact bitcoins very often, but right now I'll need it for micro-payments.
legendary
Activity: 3500
Merit: 6320
Crypto Swap Exchange
January 13, 2021, 07:31:13 AM
I love the wild theories about this, but couldn't it just be someone who set up (or is testing) some micro payment system?

That was my 1st thought, BUT I would think that.

1) It went on for longer then I have the screen shot for so that just seems excessive. That's a lot of testing.
2) They would be using their own nodes.
3) That is what testnet is for (yeah I know it's such a small amount who cares)

So I dismissed it. Looing back through some logs it did happen once before so I'll just put it in the "meh, whatever" pile and move on.

-Dave
legendary
Activity: 3290
Merit: 16489
Thick-Skinned Gang Leader and Golden Feather 2021
January 13, 2021, 03:34:45 AM
I love the wild theories about this, but couldn't it just be someone who set up (or is testing) some micro payment system?
legendary
Activity: 3696
Merit: 2219
💲🏎️💨🚓
January 12, 2021, 10:35:02 PM
It wouldn't be something like the One Satoshi quasi spam that occurred during the Sochi Winter Olympics a few years ago? IIRC it was either a tracking attack (actual terminology name escapes me just now) or it really was just a cleaver marketing ploy...

Either way I seem to recall hearing that "feature" has now been disabled.
copper member
Activity: 1666
Merit: 1901
Amazon Prime Member #7
January 12, 2021, 10:08:22 PM
So was looking at my node just now and saw this:

Just dozens of 2sat (3 with fee) transactions.
Any idea why someone would be doing it? Just seems real odd.
Never saw it before, so I don't know if its something odd or I just never noticed.

-Dave

Don't get me wrong I'll take the 1 sat per transaction all day long, but it makes you wonder what else is going on out there that nobody sees.

-Dave
 
I would guess it is someone trying to calculate the size of open channels. If you know the size of open channels at enough intervals, you can potentially track individual LN transactions that are supposed to be private. Or it could be someone trying to reduce privacy in some other way.

It could also be someone trying to send a larger amount of coin to someone via many transactions than would be possible via a single transaction.
legendary
Activity: 3500
Merit: 6320
Crypto Swap Exchange
January 12, 2021, 07:30:06 PM
Just putting it out therre: could that be used to check if your node is online by sending a transaction every 30 mins worth 2 sats and getting a notification from it? That's my best guess atm...


Why would anyone care and it's not a regular interval:

Code:
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And unless it was someone at WalletOfSatoshi.com I don't think there would be anyway to force it to use my node. According to 1ML WalletOfSatoshi.com [6] has 128 channels open.
Don't get me wrong I'll take the 1 sat per transaction all day long, but it makes you wonder what else is going on out there that nobody sees.

-Dave
 
copper member
Activity: 2856
Merit: 3071
https://bit.ly/387FXHi lightning theory
January 12, 2021, 07:06:34 PM
Just putting it out therre: could that be used to check if your node is online by sending a transaction every 30 mins worth 2 sats and getting a notification from it? That's my best guess atm...
legendary
Activity: 3500
Merit: 6320
Crypto Swap Exchange
January 12, 2021, 06:58:30 PM
So was looking at my node just now and saw this:



Just dozens of 2sat (3 with fee) transactions.
Any idea why someone would be doing it? Just seems real odd.
Never saw it before, so I don't know if its something odd or I just never noticed.

-Dave
copper member
Activity: 2856
Merit: 3071
https://bit.ly/387FXHi lightning theory
January 04, 2021, 11:32:56 AM
But I don't know if I can find those transactions. I will take a look into it when your data is ready
I wasn't planning on doing anything with "inputs", unless there is a specific request. I'm basically just mirroring Blockchair.
I can do data extractions, but I'll need to know what you need. And it will take a while because there's a lot of data.
I think most datasets already available should have all the info necessary AFAIK. You can either check the script type or the public keys used for signing it from what I can remember.

Full human readable data would be HUGE.
legendary
Activity: 3290
Merit: 16489
Thick-Skinned Gang Leader and Golden Feather 2021
January 04, 2021, 11:23:43 AM
But I don't know if I can find those transactions. I will take a look into it when your data is ready
I wasn't planning on doing anything with "inputs", unless there is a specific request. I'm basically just mirroring Blockchair.
I can do data extractions, but I'll need to know what you need. And it will take a while because there's a lot of data.
legendary
Activity: 2352
Merit: 6089
bitcoindata.science
January 04, 2021, 11:07:42 AM
For a channel that had been closed you're looking for a multisig 2 of 2 script
If you bitmover can find them in for instance blockchair_bitcoin_inputs_20210103.tsv.gz (45 minutes download): I should have all ~350 GB data available somewhere next month.

Yes, my idea was really to look for them into your data, as it is organized in CSV and I am already used to it.

But I don't know if I can find those transactions. I will take a look into it when your data is ready
legendary
Activity: 3290
Merit: 16489
Thick-Skinned Gang Leader and Golden Feather 2021
January 04, 2021, 04:13:07 AM
For a channel that had been closed you're looking for a multisig 2 of 2 script
If you bitmover can find them in for instance blockchair_bitcoin_inputs_20210103.tsv.gz (45 minutes download): I should have all ~350 GB data available somewhere next month.
copper member
Activity: 2856
Merit: 3071
https://bit.ly/387FXHi lightning theory
January 03, 2021, 08:44:32 PM
I have a question.

Looking at a transaction in the blockchain. How can I know if that transaction created or closed a Lightning Network channel?

I would like to try to find those transactions and make some stats with them.

Realistically you're probably only going to be able to work out its a lightning channel on the blockchain once it's been closed. It may be possible to send htlcs incomplete down channels that are active to see the available balance they might have for transferring - but then you'd lock their funds in a htlc potentially and it'll depend on the node as to how long that is.

For a channel that had been closed you're looking for a multisig 2 of 2 script to be highlighted in whatever you're using for the analysis (eg the bitcoin core daemon). And for the multisig address to only have 2 transactions - channel opening and channel closure.
legendary
Activity: 2352
Merit: 6089
bitcoindata.science
January 03, 2021, 08:30:58 PM
I have a question.

Looking at a transaction in the blockchain. How can I know if that transaction created or closed a Lightning Network channel?

I would like to try to find those transactions and make some stats with them.
legendary
Activity: 3500
Merit: 6320
Crypto Swap Exchange
December 25, 2020, 04:56:52 PM
I know I asked something similar before and never got an answer, is there any software out there that monitors your Lightning Node and lets you know if it's unreachable?

I now have the server itself monitored along with the bitcoind / lnd / etc. But I would like to know if there is a way to know that for some reason it can't be seen by the outside world. Happened the other day, server was up and running fine along with all the services, BUT for some reason it could not see the outside world, or at least the outside world could not see it. A quick reboot fixed it, but a little warning would have been nice. Honestly if I had not tried to send a payment I never would have know that nothing could route to it.

-Dave

Can't you just ping or telnet from a different machine?

Code:
telnet

Should connect.

so BFX's node would be something like  
Code:
telnet 34.65.85.39 9745
which seems to work.

if you want to see if your lighnting functionality actually works, you'll probably need to set up a second node and try a HTLC every n minutes...?

That's what I figured. I have the processes monitored, and an external ping running, but was looking for an automated thing that someone already wrote to do the actual connection to LND to see if it actually responds as opposed to just sitting there running but not working.

Guess I'll hack something together and set it to run every 5 minutes. Surprised nobody has written anything to do it yet.

-Dave
legendary
Activity: 1946
Merit: 1427
December 25, 2020, 04:42:31 PM
I know I asked something similar before and never got an answer, is there any software out there that monitors your Lightning Node and lets you know if it's unreachable?

I now have the server itself monitored along with the bitcoind / lnd / etc. But I would like to know if there is a way to know that for some reason it can't be seen by the outside world. Happened the other day, server was up and running fine along with all the services, BUT for some reason it could not see the outside world, or at least the outside world could not see it. A quick reboot fixed it, but a little warning would have been nice. Honestly if I had not tried to send a payment I never would have know that nothing could route to it.

-Dave

Can't you just ping or telnet from a different machine?

Code:
telnet

Should connect.

so BFX's node would be 
Code:
telnet 34.65.85.39 9745
which seems to work.

if you want to see if your lighnting functionality actually works, you'll probably need to set up a second node and try a HTLC every so many minutes...?
legendary
Activity: 3500
Merit: 6320
Crypto Swap Exchange
December 25, 2020, 10:01:25 AM
I know I asked something similar before and never got an answer, is there any software out there that monitors your Lightning Node and lets you know if it's unreachable?

I now have the server itself monitored along with the bitcoind / lnd / etc. But I would like to know if there is a way to know that for some reason it can't be seen by the outside world. Happened the other day, server was up and running fine along with all the services, BUT for some reason it could not see the outside world, or at least the outside world could not see it. A quick reboot fixed it, but a little warning would have been nice. Honestly if I had not tried to send a payment I never would have know that nothing could route to it.

-Dave
legendary
Activity: 3948
Merit: 3191
Leave no FUD unchallenged
December 24, 2020, 08:53:56 AM
.. they 'can'. Whatever they to, 100% SEC / CFTC et al will shut it down, even after 7 + years. No way doing such (bigger) without engagment with regs

Tech doesnt solve  that - get real

Oh, that's right, you believe that only the fervent followers of your worthless clonecoin understand what regulations are.   Roll Eyes

News flash, zealot, Liquid has been developed with regulatory conformity in mind:

businesses can quickly issue Liquid-based security tokens with the click of a button, and establish sophisticated rulesets to conform with their regulatory requirements with no software engineering experience required.
token rules do not have to be written at the smart contract level–as is the case with other blockchain platforms–and can be easily adjusted via the Liquid Securities control panel to allow issuers to adapt to fast-evolving digital asset regulations.

Looks like tech does, in fact, solve that.

Now kindly go away with your regurgitated faketoshi propaganda.
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