Questions tagged [lightning-network]

Proposed payment system leveraging payment channels which allow re-negotiation of balances that finally get executed on the Bitcoin blockchain.

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1answer
12 views

How to find out if LND opening pending channels has a confirmation onchain?

After typing lncli pendingchannels I get a channel_point number, and when I put channel_point txid to check if it was confirmed onchain by typing: bitcoin-cli gettransaction "txid insert" I get an ...
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1answer
227 views

Why is my “spendable_msat” much lower than “msatoshi_to_us”?

Today I was attempting to send a Lightning Network payment via c-lightning, version v0.7.1-64-gbb30104, using a channel I established in 2018. Strangely, my payment kept failing even if the ...
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1answer
18 views

Do HTLCs get “carried over” in the subsequent commitment transactions?

With regular commitment transactions, current transaction invalidates the previous one. This is fine, since TXs between A and B in their channel happen one after another. However, HTLCs are sort of ...
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1answer
30 views

How do I find the nodeid of the node issuing a lightning network invoice?

I recently got an BOLT11 invoice from a store. For example this one: ...
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1answer
21 views

c-lightning - Unknown Peer

I'm trying to create a channel using c-lighting (testnet), but I keep getting an Unknown Peer error message. I used cli/lightning-cli connect which seemed to work fine. I used cli/lightning-cli ...
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1answer
51 views

Does an incorrect preimage cause intermediary nodes to discard a Lightning payment?

Consider a multi-hop Lightning payment from Alice via Bob to Charlie. Charlie creates an invoice, Alice finds a route and forwards the payment, now Charlie is expected to redeem the payment by ...
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1answer
19 views

Why do Lightning packets include channel ids if forwarding is non-strict?

The onion packets in Lightning, as described in BOLT 4, include short_channel_id's of the channels along the route constructed by the sender. But according to the same spec, the forwarding is non-...
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1answer
35 views

lightning to lightning non custodial swaps

Do you know the way to freeze funds in lightning tx to implement atomic swap between two independent lightning networks?
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2answers
58 views

download the bitcoin chain begining from a certain date

I am building a bitcoin lightning network using lnd on a separate computer this computer has less than 200G avaible and the actual blockchain is more than 220G, so I am gonna need to use prude mod ...
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1answer
15 views

Can my 10,000 satoshi channel with a large LN node receive multiple LN payments that are larger than the amount in the channel?

Can my LN channel for some amount "X" receive a LN payement larger than "X"..or receive multiple small payments that exceed "X"? For example, say I have an online tea store and have one 100,000 ...
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1answer
26 views

Scaling fee solution for Bitcoin lightning?

Currently it cost $0.000116736 USD (1 satoshi) fee to make a transaction on lightning. What are some other scaling solutions to lower the fees? Can we just increase the decimals and have sub-satoshi ...
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2answers
37 views

How does loop work?

Lightning loop is a great non-custodial way to do submarine swaps in both directions. However I would like to clarify some questions about how it actually works. There is a closed source server side ...
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1answer
18 views

Why does the amount of sats in a lightning payment channel amounts vary if no txns are occuring?

I recently got my lightning node up and running (went the easy route via Casa node). I noticed that I was having a difficult time tracking the amount of sats in a given channel..I wasn't doing any ...
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1answer
27 views

Lightning Network conf listen & externalip values

I downloaded LN repo. I have this settings in my lnd.conf file: listen=192.168.100.134 externalip=186.4.235.84 I am following some tutorials online that do not include this settings (like this one) ....
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1answer
37 views

How to manually rebalance Lightning Network channels?

I'm running an LND node that has a few dozen channels open to various relevant vendors/routing nodes. There are a couple specific channels that are open with stores that are getting used with most of ...
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1answer
30 views

How to set up Lightning Network conf file. RPC user / password? and zmqpubraw?

In my lnd.conf file I have the following settings: debuglevel=info listen=192.168.100.134 externalip=186.4.235.84 alias=MyNodeAlias color=#000000 maxpendingchannels=5 bitcoin.mainnet=1 bitcoin....
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1answer
33 views

How to get the outbound and inbound capacity of a node using LND?

I expected to find an option on lncli to get the exact inbound and outbound capacity of my node, but this is not the case. What is the best way to have this information?
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1answer
45 views

HTLCs and commitment transactions

Why commitment transactions can't simply be HTLCs instead of contracts revocable by having the second half of the Revocable Private Key? I mean, why bother to create a Revocable Public Key from two ...
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1answer
22 views

Who pays on-chain fees for settlement transaction?

Given a channel between Alice and Bob, who pays the on-chain fees when closing the channel? Considering all possible types of closes: Bob unilaterally closes channel Bob wants to close the channel ...
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1answer
30 views

Set lower limit to incoming new channels in LND

For now, any remote node can open a channel to my LND node and my node will always happily accept the channel. However, I've seen in the past that other nodes would have limits in what channel sizes ...
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1answer
50 views

Lightning Network : Pay a Bolt11 Invoice in multiple Payments

Is there a way to pay one Bolt 11 Invoice in multiple payments with Lightning Network? For instance this invoice total amount to pay is 5000 satoshi: ...
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2answers
42 views

BOLT #7: Can receiving node requirements in channel_update message give rise to malicious attacks?

Following requirements have been placed on the receiving nodes related to the channel_update message in BOLT #7. if timestamp is NOT greater than that of the last-received channel_update for ...
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1answer
30 views

What is the best Lightning implementation to obtain the network graph?

I want to obtain a fresh snapshot of the Lightning network from my own node. So far I've experimented with Eclair, its API calls allnodes, allchannels, and allupdates give me the information in the ...
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1answer
21 views

Lightning network: which update messages are replayed?

If I understand correctly, after a new node connects to a peer in the Lightning network, it receives all past channel announcement / update messages for currently open channels to recreate a local ...
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1answer
28 views

Where can I download a snapshot of the Lightning network topology?

I want to study the properties of the Lightning network graph. Is there a way to obtain a reasonably fresh snapshot containing nodes and channels (say, in JSON format)? There are multiple explorers ...
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1answer
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Is a bitcoin UTXO divisible?

In this video Andreas Antonopolous says an output is indivisible and therefore if a transaction smaller than the output is done, the rest is used as change and returned to your different address of ...
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invoice amount is 1200000 but I paid 1201035. What is 1035?

I paid the invoice and then I noticed I paid more than the amount of the invoice. 1201035 (I actually paid) - 1200000 (the amount of the invoice) = 1035 (?) My questions are.. What is 1035 satoshi? ...
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1answer
40 views

Why doesn't Lightning have DNS bootstrapping?

Bitcoin uses a DNS-based bootstrapping mechanism to help new nodes find peers. As far as I'm aware, Lightning doesn't have such mechanism, and new users are supposed to just search for node addresses ...
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0answers
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Error pay invoice. Ran out of routes to try after 2 attempts: see paystatus

I wanted to send some satoshis on testnet lightning network but I got "Ran out of routes to try after 2 attempts: see paystatus" error. I have a channel with 02...48 (1ML.com node ALPHA) and created ...
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3answers
64 views

Why can't an intermediary Lightning node take (nearly) all fees?

Consider a Lightning payment: Alice wants to pay 100 sat to Dave via two intermediary hops: Alice - Bob - Charlie - Dave. Both Bob and Charlie advertise a fee of 2 sat. Alice sends 104 sat to Bob, ...
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1answer
74 views

Is signature/private-key required to accept payment over Lightning Network?

To (1) create an invoice and (2) accept payment in LN, the node has to be online. But does the node need to sign the creating invoice or the accepting payment? We don't have to have private key ...
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1answer
22 views

Can I explicitly specify a path for Lightning payment?

From what I understand, in the current Lightning implementations payments work as follows: calculate best N paths according to some metric (like, total fees); try to perform the payment through the ...
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1answer
23 views

Lightning Network on testnet - listchannels and listnodes returning empty values

I have setup a lightning node on testnet using c-lightning. The lightning-cli getinfo command output: { "id" : "0315a5746114ab9f3e8f0a3f2f73153ef1e4a8fb58daa54fa97c9603dfab989a30", "alias" : "...
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1answer
41 views

Why is it necessary for Multi-Path Payments in Lightning to be Atomic?

One way of achieving multi-path payments in lightning is by having the sender use the hash sent by the receiver to send multiple payments along different paths. The mailing list entry proposing atomic ...
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1answer
98 views

Does Lightning Network has concept of continuous stream of value?

Examples: Car insurance: $1000 per year. Legal consultation: $500 per hour. Visiting a website: $100 per hour. Assuming 1 BTC = $8000 1 hour = $100 = 0.0125 BTC = 1,250,000 sat 1 second = 1,250,...
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1answer
69 views

Accepting micropayment donations via Lightning Network - what is the most efficient / recommended architecture?

The difficulty that I am experiencing at the moment - how to accept Lightning Network micropayments donations supporting (shameless plug): https://genesis.re/wiki#Plan_B Zap / Joule: I send on-chain ...
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1answer
73 views

BOLT #3: Shouldn't timeout be included in the script of “Offered HTLC Outputs” for the local node?

According to the BOLT #3 documentation, the offered HTLC output has the following script that allows the remote node to claim the funds with the payment pre-image and the local node to claim it after ...
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1answer
26 views

RPC for LND: rpc_pb2_grpc vs lnd_grpc

I'm trying to automate launching multiple LND instances with a Python script. I've been trying to use lnd_grpc but can't get it to work. I created an issue in the LND repository and was pointed ...
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1answer
45 views

Remote node signature for HTLC-success and HTLC-timeout transactions

According to BOLT #3, when constructing a HTLC output in the version of the local node (both received and offered HTLC), it requires that the payment to the local node is locked with CHECKMULTISIG ...
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1answer
20 views

How multiple unfinished payments in single LN channel work?

I think I understand HTLCs, at least if they are on chain. I also have a basic understanding of how off chain channel looks like. I understand it as follows. It is a 2-of-2 multisig transaction ...
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2answers
46 views

Why do we use CLTV instead of CSV in the HTLC output of the commitment transaction?

In lightning network commitment transactions, the HTLC offered/received outputs generally pay the offering node after a timeout which is scripted using CLTV. In other parts of the commitment ...
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1answer
60 views

How does 1ML measure the availability ranking of nodes?

If there is an 1ML Node Rank ranking explanation anywhere ? My node is online 99.9% but "Availability" dropped down from 700 to 4000 in last 3 months. :( I guess this is somehow associated with the ...
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1answer
40 views

What are some proposed privacy features coming to the bitcoin lightning network?

If I'm correct, a bitcoin sent into a lightning channel technically looks like any Bitcoin transaction. From there if the channel never closes, the Bitcoins can essentially stay in a "locked" state in ...
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1answer
37 views

How does one generate a paper wallet for a Lightning Bitcoin address?

Is there a paper wallet generator for a Bitcoin Lightning addresses? How can one generate it in javascript?
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1answer
41 views

Implement HTLC manually by writing scripts

Is there any way to implement HTLC manually for locking funds in the channels in lightning network for a period of time (by setting intervals) and releasing the funds after the time lock expired using ...
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1answer
52 views

lnd SendPayment “unable to find a path to destination”

I got an error "unable to find a path to destination" when I call SendPayment to an invoice, created at starblocks.acinq.co, from my local private LND node on mac (docker). It seems getinfo and ...
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1answer
119 views

Is there a solution to paying high fees when opening and closing lightning channels once we hit a fee only market?

Paying several hundred dollars to open and close a lightning channel seems uneconomical. This is a common argument against lightning by big blockers, I’m yet to read a valid argument against this.
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1answer
29 views

How Lightning Networks protect itself from 'Selfish Mining'?

It is a well accepted fact that mining pools do engage in 'selfish mining' by not broadcasting a block to the network when they find a PoW solution, but building on top of that block so as to maximize ...
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3answers
136 views

Can the bitcoin lightning network support more than 8 decimal places?

Say Bitcoin goes to 1 a million dollars. We need more decimals, but btc core only supports 8 decimals? By that time its safe to assume everyone will be using lightning to do transactions, but will ...
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1answer
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How many channels of Lightning Network can I open in one transaction?

To open channel I should create a transaction with a special script and at least one output to P2WSH address. Is it possible to open more than one channel in one transaction if I created transaction ...