Questions tagged [nodes]
Questions concerned with (full) nodes, i.e. relay points in the Bitcoin network.
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Is it possible to get the full list of synced nodes ɪᴘ on the network?
There are many website like https://bitnodes.earn.com/ but I’m failing to understand if they collect nodes from compulsory submission on the web interface for statistics purposes only or they use a ...
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23 views
Is 10K full nodes enough to bitcoin to avoid 51% attack?
As I know bitcoin has about 10K full nodes. And the question is in my mind is that: This number is not huge! If someone has 6K servers, Can control the bitcoin via 51% attack?
I was thinking if ...
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How to create a node to a private blockchain using Bitcoin core
Is it possible to create to connect to a private bitcoin chain with bitcoin core? I created a private bitcoin chain through regtest on one vm. Now I want to make a full node copy of it on a separate ...
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1answer
24 views
Bitcoin-Qt [11690]
I found this on my mac computer what is the meaning of this can you pls hep me to understand I am new to this;
Process: Bitcoin-Qt [11690]
Path: /Applications/Bitcoin-...
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1answer
34 views
Can't connect to bitcoin lightning node
Am trying to connect to https://1ml.com/node/02671251b5678771514df8f26cc01508606d697ae8cad38063f84becbd359b189f
From eclair app https://imgur.com/gallery/GoAMpjp it keeps saying failed to open ...
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25 views
Wallet error ErrorFile=… /testnet3/wallets/db.log
I want to use two deamon for sync mainnet and testnet.
I Run $ bitcoind for mainnet without problem
After I run $ bitcoind -testnet But I get this error
BerkeleyEnvironment::Open: LogDir=/home/...
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1answer
50 views
Rewarding full nodes trough the Lightning Network
Sometimes I think "DASH" has some kind of advantage over Bitcoin because it has some rewards not just for the miners, also for the full nodes. Am I correct?
Is not this a strength (a prevention) ...
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Locating Bitcoin mining activity
There is any systematic way to locate Bitcoin mining activity (either block creation or node activity). I stumble upon with Bitnodes code which implements a recursive search using some nodes as "seed",...
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1answer
63 views
Bitcoind doesn't start
Im trying to make Stadicus guide work for both Bitcoin Core & LND
I did download the blockchain and moved to the HDD on my Rasp3
However, when starting the bitcoind service, im having this debug....
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2answers
29 views
Does a Node connect to all the peers?
Does a Node connect to all the peers in the network? Or just a few?
If its just a few, how many?
If its just a few, what about if all of those nodes in the list are malicious?
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Blockchain, correction of blocks
How do a malicious nodes correct their blockchain if they have it wrong?
If they don’t want to fix it, what happens then?
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Private Blockchains: Blocks’ validation
I’m a software developer and I’m trying to understand blockchain at a code level
I have the following issue:
There’s a private blockchain, this private blockchain does not have any relation to ...
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1answer
23 views
Private Blockchains: Validation
I'm a software developer, and I have some questions about private blockchains, I'd like to have technical answers since I'm trying to understand blockchain at a code level. I'm going to write a ...
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1answer
84 views
Checking whether lightning node is online/visible
I just created my first lightning node and already have one active connection. My problem is however, that I do not see my node in any lightning network explorer. Is it possible to somehow check ...
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1answer
22 views
What happens to .blk files on disk when the Bitcoin daemon switches to a longer chain?
I’m interested in writing a program that will (1) parse the .blk files that my full-node Bitcoin daemon writes to disk and (2) write them to a relational database in an incremental fashion (i.e., ...
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2answers
57 views
Is it possible to create a wallet service, which doesn't have all the blockchain downloaded?
Is it possible to create a wallet service, which doesn't have all the blockchain downloaded? Like not running a full node itself?
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SPV node in local machine [duplicate]
I have fullnode in my local machine, I'd like to have SPV node to understand how SPV works with merkle tree.
With Bitcoin Core 0.17.1 I can have only full node?
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1answer
117 views
How is node capacity determined on 1ML.com?
I have set up a Casa node, using lnd, and opened 15 payment channels. The capacity of my channels, after almost 3 weeks, is exactly what it was when I opened the channels, leading me to believe that I ...
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1answer
56 views
How does bitcoin broadcast information?
On Bitcoin's Blockchain, how is information transmitted instantly to all other nodes and do nodes 'talk to each other' through an API?
Do Blockchain nodes communicate with each other through HTTP ...
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1answer
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How does the Bitcoin network maintain the chains created when two nodes generate different versions of the same block?
I came across these lines from the Bitcoin whitepaper:
If two nodes broadcast different versions of the next block
simultaneously, some nodes may receive one or the other first. In that
case, ...
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0answers
43 views
How to get multiple connections to the same node
I'm playing around with connecting my node to another one of my nodes to see how many incoming connections I can handle.
Whenever I add node A from node B with bitcoin-cli addnode 1.1.1.1 add after ...
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1answer
36 views
Bitcoin full node sharing blockchain
Does anyone know how one might run two bitcoin full nodes on the same machine with both these nodes sharing the same blocks and chainstate files, is a symlink to these files enough or must something ...
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1answer
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How is the Bitcoin node network different from the IOTA network? [closed]
I asked this question on IOTA's forum here:
Real incentives for running a full node?
One of the founders from IOTA Come-From-Beyond (Sergey Ivancheglo) responded with this comment:
"However, ...
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1answer
301 views
Why would running a light node riskier and subject to more frauds than a full node? We don't NEED a full ledger, do we?
I've been reading on light node and many have pointed out that the light node doesn't have the full blockchain and is riskier because they can't verify the transactions fully.
First, we can verify ...
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0answers
35 views
Why can't an ISP ban access to a blockchain network? [duplicate]
I read that blockchain sits on top of the internet and is decentralised. We still have to access the blockchain network via an ISP. Without ISP, we can't access the internet so why can't an ISP block ...
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2answers
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How do block explorers determine propagation through nodes/P2P protocol?
On several Bitcoin blockchain explorers, I have seen unconfirmed transactions given a dedicated "propagation" value that tells a user how much of the Bitcoin network has become aware of this ...
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1answer
54 views
What percentage of nodes currently support segwit?
What percentage of nodes currently support segwit?
It seems Bitnodes could figure this out, but I can't find such a stat on its website.
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1answer
35 views
How do you download blockchain data (transactions etc.) using a node? Best ways to get a node?
I am just curious how one can download bitcoin data and blockchain using a node. Where should I start?
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How to set up a gateway node?
I have two nodes running in my local machine. one public facing and another connected ONLY to the public facing node. I ensure they are whitelisted and in different ports. the nodes connect just fine, ...
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1answer
414 views
Can we estimate how many node has the Bitcoin network? [duplicate]
Is it possible to estimate the amount of nodes (hosts) are connected to the Bitcoin network in a given time?
Note: Here node means host.
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How do I check if I am running a Dogecoin full node?
Are there any tools to check if your dogecoin node is reachable?
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1answer
24 views
How many unit test should be run after building a node?
After building Bitcoin ABC and running make check, I get this:
# TOTAL: 1
# PASS: 1
# SKIP: 0
# XFAIL: 0
# FAIL: 0
# XPASS: 0
# ERROR: 0
Is that correct?
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1answer
44 views
Ardor configuration settings to connect to remote node without downloading entire blockchain locally
What configuration is required to run the Ardor wallet software without downloading the entire blockchain, but only connect to a remote node?
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1answer
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How does a new node know where to connect to initially? [duplicate]
Is there a default (centralized) set of IPs that a node connects to when it's just starting up for the first time, in order to get the list of other nodes' Ips? What happens if these initial IPs are ...
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1answer
593 views
Can you run a bitcoin lightning node on a raspberry pi zero?
Will a bitcoin lightning node run on a raspberry pi zero? Does it have to have the full Bitcoin blockchain synced or can it connect to a remote node? Also what are the minimum requirements to get a ...
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1answer
33 views
structure of communicating with bitcoin DNSs to get list of nodes
I want to communicate with bitcoin DNSs to get list of bitcoin nodes.
for now I want some example and structure of messages between I and bitcoin DNS.
I found two DNS names:
dnsseed.bluematt.me
...
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3answers
217 views
When a node receives a transaction, what steps does it do to verify that transaction?
I know that it verifies the block hash by calculating each hash of the contiguous blocks in order, but does it verify the balance of each wallet sending the transactions as well? And does it do the ...
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3answers
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Problem in understanding other miners validating puzzle solving miner's claim
I understand that miner's role is to validate the block of transactions by calculating nonce based on difficulty level and finding hash of {block + nonce + hash of previous block} .
Then it adds this ...
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3answers
139 views
How do I know that a node provides the accurate blockchain
When I connect with a wallet to the bitcoin network, how is the balance actually retrieved? One node? Or more? I understand it is a sum of all transactions. But when I load my wallet I assume I ...
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1answer
76 views
how do i setup a node for my altcoin?
I just created a new altcoin based on foocoin or barcoin. But now i need my wallet be synchronized. There's some way to setup a node without any cost or low cost for my wallet?
By other part, i just ...
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1answer
74 views
How to migrate lightning nodes?
I am wondering what steps to take to migrate a lighting node to a different server, keeping the pubkey/identity. The safest option is obviously to close the channels first. How is the identitiy pubkey ...
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1answer
190 views
Building a small block explorer for fun, stuck with node
Im trying to build a small btc block explorer for fun.
The problem where i am stuck is that im trying to setup a node.
I got a Ubuntu VPS running and i have bitcoind installed, but what now?
Can ...
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1answer
333 views
How To Run a Litecoin Node?
How To Run Litecoin Node? I want to run my own litecoin node like bitcoin
I know how to run bitcoin node but there is some issue when i am starting litecoin node
Any Idea? #Creating Litecoin ...
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2answers
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What happens if full nodes don't check for double spends or deliberately lets a double spend TX pass and then this full node relays the transaction?
I am studying about Bitcoin and Blockchain tech via the Princeton crypto course, and it mentions that Full nodes do the following checks :
i)transaction is valid with the current blockchain,
ii)...
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1answer
554 views
Is a miner running a full node?
Is a miner just running a full node that is connected with the mining hardware? Or is there such thing as a miner node? Does it use additional software for transaction selection?
Thanks in advance!
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2answers
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Is there an efficient way to get the last 200 blocks (BTC, LTC, ETH)?
I am looking for an efficient way of getting the last 200 blocks and being able to pull all transactions related to an address. I would like to do this for BTC, ETH, and LTC. Is there any way to ...
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0answers
150 views
Bitcoin node generating invalid addresses
I'm running both a bitcoin and a litecoin node, both are generating invalid addresses.
My LTC generated address:
MV6eGvkbkgcDZLDpK1WQeZLMmx3PHZmXC7
My BTC generated address:
...
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1answer
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Altcoin clone peer connections limited to 1
I cloned an altcoin and set up a network of 7 peers.
One of the clients is connected to a pool and is mining the coin.
All the other clients are connected to the pool one and are syncing and ...
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0answers
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Nbitcoin node c#
Create a transaction to send money, then it needs to be "registered" in the system, before doing so :
using (var node = Node.Connect(Network.Main, node_address))//, node_address
{
...
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3answers
2k views
What is preventing negative balance?
This is probably a stupid question that has an answer somewhere, but I was unable to find anything, so please feel free to redirect me !
I have a basic understanding of how the bitcoin blockchain ...
