Questions tagged [full-node]

Nodes that fully verify all of the rules of Bitcoin. The most popular software implementation of full nodes is called Bitcoin Core.

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17 views

Running multiple bitcoin instances on same server system

I wish to run multiple instances of bitcoind on my server to support highly read intensive RPC applications. Following links: how to run multiple bitcoind node on one server? Running Multiple Full ...
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Will the size of Bitcoin core full-node be too big to run on a normal computer?

I am a Bitcoin enthusiast, with no background knowledge in computer science and cryptography. I once ran Bitcoin core on my laptop but realized that it occupied too much space in my computer. I ...
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What are some affordable options for running a full node?

I would like to start running a full node so I can start building bitcoin/lightning applications, but my laptop doesn't have the storage to do so. Does anyone have any suggestions on how I can ...
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19 views

Bitcoin network resources requirement

Supposing we are alone, could it be possible to run the whole bitcoin network and full capacity of it (maximum transaction per second by different peer) on a low end computer, and how can someone ...
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Bloom Filter Response Processing In terms of Full-node

A SPV node have to work somethings to see whether his transaction is exist or not. Construct his filter with hash of transactions {his transactions, other1, other2, ..., otherN} filterload is filled ...
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Does rpcpassword need to be non-obvious in bitcoind?

I'm syncing a full BTC node onto an external hard drive, which I'm connecting to by USB. I've created a bitcoin.conf file which sets a very insecure rpcpassword. This is literally the only field I put ...
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39 views

No inbound connections on my bitcoin full node with TOR

Can someone connect to my running node? u3ob433qu3ebkmsu.onion:8333 I'm behind a CG-NAT so I've thought using TOR would solve my problem. I had my node running for hours but no inbound connections. ...
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42 views

Bitcoin API standard

I'm trying to implement a bitcoin full node while learning a new programming language, but I can't find the full set of public API that the full node has to expose. I assume the standard will be ...
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32 views

Acces Casa full node with Python

I have a bitcoin-core full node running and I want to access my node in Python, how can I retrieve the blockchain info?
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How could an attacker with more than 50% of full nodes hurt the bitcoin network the most? [duplicate]

According to Luke Dashjr's stats there are currently around 61.000 bitcoin nodes supporting the bitcoin network. https://luke.dashjr.org/programs/bitcoin/files/charts/historical.html What if an ...
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1answer
54 views

Possible to run a Lightning node on same computer as Bitcoin Core node?

I have a Windows 10 laptop that is running a full Bitcoin node using Bitcoin Core. Is it possible to also run a Lightning node on the same laptop simultaneously with the Bitcoin node?
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35 views

What role has bitcoin-init as a process?

I have set up a node on a RaspberryPi. When I check for active processes with top I see bitcoin-init occupying 50% of memory and 7% of CPU. I can check for bitcoind and it is active: bitcoin@...
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What are the ways of receiving transactions list via Bitcoin address?

My team challenges an issue. Trying to support Bitcoin wallets in a messenger app and staying user-friendly, we need transaction lists to be receivable quick and nice. So users would not die waiting. ...
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How to get total transactions on the network with RPC

I have seen no concrete answer to this question anywhere. I assume it is possible to get the total number of successful transactions on the bitcoin network using bitcoin-cli command because most ...
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0answers
22 views

How often does a node connect to a random node?

I'm trying to understand the likelihood that a node would connect to a sybil attacker, and the critical piece to this that I don't understand is: how often does a bitcoin node connect to a random node ...
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32 views

Does Electrum reveal a wallets public key to Electrum Servers?

When Electrum Bitcoin wallet queries a random Electrum Server does it send the public key to the server or does it send a batch of addresses to check? For instance, after setting up Electrum Personal ...
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Can't inititate network handshake with my full node

I am running a custom Python script to initiate network handshakes with other nodes. While testing the code I decided to initiate an handshake with my own node but I am getting a timeout error. ...
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1answer
76 views

Under what circumstances will a full node disconnect a peer?

I know a full node will disconnect from a node if that node "misbehaves". For example, a node's connection will be dropped if it sends too many messages that don't follow the rules (what rules?) and ...
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Why isn’t connecting to your own local node a common feature for Bitcoin clients?

I come from the Monero community and connecting to my own local node running on my home PC is very simple whether it’s on the GUI, CLI or a mobile wallet. Why does Bitcoin not have the ability to do ...
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System requirements for running a Bitcoin Core node on testnet

What are the minimum systems requirements for running a Bitcoin Core full node on testnet?
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bitcoin full nodes vs simplified payment verification

Why do individual nodes run "full nodes" that keep track of the entire blockchain whereas mechants can get away with "lite node" that implements "simplified payment verification" needing to examine ...
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1answer
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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
42 views

Bcoin initial blockchain sync progress isn't saved

I'm using bcoin and it's class FullNode to run a full Bitcoin Node. Here's the configuration: const node = new bcoin.FullNode({ prefix: '/mnt/d/bcoin', network: 'testnet', ...
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How to accept bitcoin and giving each user a unique address amd automatic withdrawal

I want to create a website when users on singing up will get a unique address and after getting my websites service,they can withdrawal the money also automatically. Is that bitcoin integration free ? ...
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Do Full Nodes validate all transactions and make new blocks after all bitcoin are mined?

Do Full Nodes validate all transactions after all bitcoin are mined? A fork of bitcoin core with all coins pre mined would be behaving in this way too I'd imagine..? Also, would these nodes still ...
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HTC Exodus - New phone Capable To Run Full BTC Nodes - is this possible?

https://mashable.com/article/htc-exodus-1s-blockchain-phone/?europe=true Hello people. I read about the above linked article on a new HTC blockchain-capable smartphone. Now my 2 questions are: 1)...
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33 views

Where is the code which rejects transactions with insuffisent balance?

Simple question but I can’t find the answer again. Where is the code which rejects transactions when the value of inputs is below the value of outputs (because I think to recall that check works like ...
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38 views

Running Bitcoin (core dameon full-node) on IPFS vs NFS?

I've tried running numerous Bitcoin daemon's concurrently over an NFS solution (namely LizardFS) using XFS instead of ext4. It only reached about 60% of its potential before all daemon's crashed. This ...
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1answer
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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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36 views

How can a person reasonably prove they're running a full node?

I mean running themselves in a computer they control and not just fetching blockchain data from a public blockchain API or something like that. I imagine that may be impossible, but there could at ...
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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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Move a Bitcoin full node running on Raspberry-Pi3 from the current microSD to another microSD

I have a fully syncronized full node with TOR The blockchain is stored on an external hard disk. The operative system is a Raspian What I have to do to move it to another microSD with operative ...
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51 views

Neutrino enables full mining nodes without storing the entire chain?

in follow-up to thread 85203: With a fully implemented Neutrino (BIP 157/8) in Bitcoin, would it enable one to operate a MINING Node without having to use/store the entire gigabytes of blockchain ...
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218 views

api limit workaround

Are there any ways to avoid limitation for api calls (5/sec)? I need the info about transactions and balance (of certain account), UTXOs and the ability to broadcast my transaction. Currently I am ...
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How can I validate the amounts of these wallets (https://bitinfocharts.com/top-100-richest-bitcoin-addresses.html) on my bitcoin full node?

Followup question: I am running a bitcoin full-node and it took a month to sync the blockchain. I did not create the full-node with a bitcoin wallet. I stumbled upon this 'importaddress' command (...
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70 views

Betweeness Centrality LND node

How can one calculate betweeness centrality of your node as mentioned in this video. I would like to take into consideration base_fee_msat fee_rate Is there a smart way to figure out what suites ...
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1answer
543 views

Can I send almost 1MB transaction?

Block size is still limited to 1MB. As I understood, transaction size is no longer limited. So can I be sure that my transaction with 29000 outputs and reliable fee will be included into block? Or ...
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109 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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39 views

Implementation of getdata

I am confused about how getdata() is actually implemented at full nodes. Suppose a full node receives a getdata() request with MSG_BLOCK flag and a hash H of some block B. Then would it simply look ...
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136 views

how can i get rid of a zombie channel in LND?

My LN-Node: 023bf99414b3e93ab7463ce60f44cd691f8be3c1ae33a2015fe784c85c36e770cf bitcoind 0.17.1 // LND 0.5.2-beta commit=v0.5.2-beta-rc7 Channel: 598078250466476032 Problem: lncli feereport returns: ...
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Bitcoin core full node won't start on mac reboot!

I had been running bitcoin core qt for a few months fine and then on rebooting my mac and opening the application the following prompt popped up Error: Cannot parse configuration file: specified data ...
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1answer
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Whats the difference in way you installing full nodes

I'm newbie in blockchain world, so I'm curious what is the difference between installing full node by using libs such as bitcore-lib (using node.js) and installing it through the daemon (mentioned ...
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3answers
218 views

What is a good hardware for a lightning network node?

What is the hardware setup you use for your LN node? Is a Raspberry Pi 3 enough for testing and playing with small amount of funds?
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47 views

How does a node decide whether a block is valid?

I'm a software developer, and I've been trying to figure out how a node decides whether a block is valid, I do understand the hashes in bitcoin, the merkle root, and all those aspects but my question ...
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46 views

`lnd` on Raspberry pi zeros?

Did somebody try to run the bitcoind full node on the Raspberry pi 3 and one or more lnd nodes on one or more Raspberry pi zeros? My goal is to support multiple LN clients without having to run a ...
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65 views

JSON-RPC get full nodes information

Is there any way to get all full nodes by RPC call? Afaik full node contains information of other full nodes in the network and was wondering how to request that. I red the documentation on Bitcoin ...
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1answer
178 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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28 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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Lightning?full node question

I'm running a full node as well as a Lightning Node with 4 channels open. I also have incoming ports enabled. I've noticed that my balance varies daily by a few thousand Sats. I'm new to running a ...
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80 views

Any privacy considerations regarding allowing inbound connections for a Tor full node?

I wanted to know if there's any privacy considerations to take into account when opening the bitcoin ports on the router for a bitcoin node. I'm using -onlynet=onion in the bitcoin.conf file and I ...