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Questions tagged [pruning]

For questions about Bitcoin Core's pruning feature.

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1answer
22 views

Pruned nodes update tip performance

If I run a node with prune=550 does the Bitcoin Daemon still receive update tips (mined blocks) just as fast as a full node?
0
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1answer
27 views

Cant start bitcoind - “Block files have previously been pruned”

I installed bitcoin, following this instructions. I mostly used it with bitcoin-qt -testnet options, even made a few transactions in testnet. I am using the pruned mode. Now I want to run the ...
3
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2answers
521 views

Does running pruning node make the initial sync faster?

Does running bitcoind with -prune option make the initial blockchain sync faster or not? I know it makes it smaller on disk, but is it faster? I keep reading conflicting information online - some ...
0
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1answer
28 views

VPS with 80 GB Space, can't download the whole blockchain?

I am using an application and WordPress that allows people to pay with Bitcoin in a small multi vendor marketplace for trading hobby items. The plugin that I'm using is recommending that I run a ...
3
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1answer
68 views

Will running a pruned node make my store less secure?

We run our own nodes to verify transactions for our store and I was wondering what will be the downsides to me running a pruned node? I read they can fully verify a transaction so I'm not too sure why ...
0
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1answer
233 views

How can a pruned node be classed a full node without the full blockchain?

A full node is a node with the whole blockchain and is able to verify any new incoming blocks. A pruned node, is a node with only some of the blockchain, namely it has removed some of the older ...
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2answers
282 views

Do you have to download the entire bitcoin blockchain for bitcoin core pruned mode to take effect?

I've read that you need to download the entire bitcoin blockchain before you can set it to bitcoin core pruned mode to reduce space. But what if I don't have 100gb+ free on my hard drive? Is there a "...
0
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1answer
51 views

How could the Bitcoin protocol be modified so that pruned nodes could still participate in BIP 37 SPV?

According to Jameson Lopp (https://www.coindesk.com/spv-support-billion-bitcoin-users-sizing-scaling-claim/), allowing pruned nodes to advertise that they support BIP 37 would be impossible without "...
2
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1answer
55 views

Can a bad actor omit an unspent address from a pruned chain?

This isn't a problem today, because if I want to run a pruned node then I still have to download the whole chain, but it sure would be nice if I could just download a pruned chain instead and validate ...
4
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3answers
268 views

Can you check if a node is pruning?

Is it possible to check if a specific node is running the full blockchain or a pruned one? Also if you can, is it possible to check exactly how many (or roughly) how many blocks they are distributing....
1
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1answer
455 views

Blockchain pruning and chainstate

In order to reduce the size of the blockchain, we can use pruning with the bitcoin core client. The description of the option says: Reduce storage requirements by pruning (deleting) old blocks. ...
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2answers
927 views

How can I prune my Bitcoin Core correctly? The other way did not work for me. Have I done any unnoticed mistake?

Saving the entire blockchain in my computer is taking mi a lot of space. I looked in this forum for a solution and I saw that there was an option to prune the node and save a lot of space. I followed ...
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3answers
426 views

Increase the fee for hanged transaction

So I made the transfer from my wallet’ address to other wallet. I use Bitcoin Core 0.14.2. And I read "Would replace by fee increase the fee on my transaction?" I apologize, was mistaken and ...
0
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1answer
93 views

Can spent transactions that get pruned lead to false payment claims?

The bitcoin white paper says that spent transactions get pruned after being buried behind enough blocks: Reclaiming Disk Space Once the latest transaction in a coin is buried under enough ...
1
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1answer
771 views

Understanding SPV, pruning and its downsides, as well

First of all, sorry by not asking an objective question, it's because I can't resume this one and I didn't find information even in the "mastering bitcoin" book. The large texts in this question are ...
1
vote
1answer
82 views

Default behaviour when network partitions/pruned network

From people oposed to SegWit I have heard about the argument, that after SegWit activation, nodes may chose to drop/prune all Witnesses. From my understanding, this may not be much different from ...
0
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1answer
346 views

Do I need 145GB disk space to validate and relay transactions with Bitcoin Core?

I wish to withdraw my bitcoin to an external wallet address under my control. I have downloaded a wallet software (Bitcoin Core) but I read that it's a full node that validates and relays transactions ...
2
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1answer
814 views

What will happen if a block is lost on a peer?

In the Bitcoin network, each peer maintains a full copy of the ledger (blockchain). What will happen if a peer losts one of its blocks in the blockchain (e.g. another process on the peer accidentally ...
3
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1answer
155 views

Does having a pruned node reduce its network score?

My node's network score (revealed by getnetworkinfo) is very low (<75). Most of the time there are no peers with incoming connections connected to the node. Is this because I'm running a pruned ...
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0answers
78 views

What BTC transactions get pruned?

I had a situation where my btc deposits into a gaming site would not confirm. Deposits were made in increments of .1btc. After I lost my BTC, I decided to play with ETH. I had a real change of luck ...
1
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1answer
261 views

How does the prune target size work?

Judging from the docs I understand that pruning, in laymen terms, only allows to get rid of information that cannot have any follow up transaction. Now, how/why is it possible to set the prune option ...
3
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1answer
734 views

What does “NODE_WITNESS (12)” mean as it is shown in bitnodes.21.co?

I'm running a pruned full node of bitcoin core version 0.14.0 and checking on https://bitnodes.21.co/nodes/ I can see that my node was labelled "NODE_WITNESS (12)" unlike of the others nodes shown, ...
6
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1answer
994 views

How to operate bitcoin core .14 without downloading the entire blockchain with limited hard drive space of 50gb free?

I only have 50GB free on my main drive. I read that the bitcoin blockchain is 120gb and you have to first download the entire thing then you can downgrade it to something smaller. how can someone with ...
7
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2answers
1k views

What happens if you set prune=<n> to a value between 0 and 550?

Today I saw a question about what Bitcoin Core would do if you set prune=1. The documentation on bitcoin.org states: A value of 0 disables pruning. The minimal value above 0 is 550. Apparently, ...
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0answers
28 views

Will block chain pruning work for zeronet (Website hosting on block chain)?

Pruning limits block chain by removing old blocks. Will this methodology work for zeronet. One of the perks of zeronet is to be able to access websites (read zites) even without internet connectivity. ...
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1answer
147 views

Does pruning affect a node's security or consensus ability?

An SPV node certainly is a compromise of security because the full set of consensus rules are not verified by the node (for example block size or subsidy rules). A pruned node seems like a win-win, ...
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0answers
223 views

Unable to PHP RPC connect to bitcoind after upgrade to 0.13.2

After upgrading my bitcoin core on my CentOs linux server from 0.10.2 to 0.13.2, and adding "prune=550" to the bitcoin.conf file, I am now mostly getting an error when trying to establish an RPC ...
0
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1answer
83 views

Privacy approach for a light-weight wallet

I am looking for an approach to build a privacy centric lighter weight wallet. By privacy centric I only mean: network observers should be unable to guess the addresses belongs to the same wallet. So ...
6
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3answers
554 views

Keeping old blocks on an external hard drive and latest blocks on an SSD

I would like to keep the latest 512 MB of blocks on my SSD (using pruning?) and the rest of the blockchain on an external non-SSD hard-drive. Is there a way to do this already, or do I need to write a ...
2
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2answers
536 views

Does Armory work with a pruned copy of the blockchain?

I'm recovering a wallet from Armory and the blockchain is taking too much space. My HD is 500 GB big but none of my partitions have more then 70 GB left. The folder .bitcoin/blocks already uses 37 GB ...
1
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2answers
637 views

I have Bitcoin Core 0.13.1 (64-bit) and I can't get prune to work

First I close Bitcoin Core... The size of Bitcoin Core it is 105GB and I want to do pruning so I can have only 2 GB. I make a notepad file named bitcoin.conf and then I write inside prune=2000 or I ...
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1answer
60 views

How to determine if a remote node prunes?

Is there a way to determine if a remote full-node prunes its blocks (i.e., if it doesn't store the entire Bitcoin blockchain)?
5
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2answers
2k views

Do I need to keep all blocks when running Bitcoin Core?

Do I need to keep all blocks, from block 0 up to the current one, when running Bitcoin Core, either as a full node or not? Or can I just keep the more recent blocks to save space?
1
vote
1answer
116 views

Changing prune size in working bitcoin daemon

I need to free some disk space in bitcoin server. Will bitcoind download all blocks from scratch again if I change 'prune' value in bitcoin.conf over working daemon?
6
votes
1answer
321 views

Running bitcoin core in a low storage system

I have a machine with ~40GB in storage. The Bitcoin block chain is ~75GB in size, is there any chance to run bitcoind in my system? I mean, can I somehow skip downloading some part of the block chain? ...
5
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2answers
197 views

Would moving a transaction from an old block to a new one allow more pruning?

At Pruning the branches in Merkle Tree Nick ODell writes "A leaf (transaction) can be pruned when all of its outputs have been spent." So I was thinking that if a transaction is one of the last few in ...
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1answer
175 views

Bitcoin core installation

I need to configure the bitcoin core and synchronize the bitcoin network. I have bought a server with 1GB ram and 20GB hard disk space is it possible to run bitcoin run in this machine ? Can someone ...
6
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1answer
332 views

Efficient way to migrate a pruned node

I would like to know what are the step to succefully migrate a pruned node. I have a Raspnode (rPi2B+) and it is so slow that it doesnt seem to sync the blockchain after several days... I want to ...
3
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0answers
140 views

Does anyone know how to enable “Massively Reduced Disk Usage for Wallets” feature in Bitcoin Core 0.12.0? [duplicate]

Based on the release note https://bitcoincore.org/en/2016/02/23/release-0.12.0/. Users will be able to run a full node while only storing around 2GB of data. What should I do to enable this feature ...
7
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2answers
1k views

Size of the blockchain after pruning

What is the size of the blockchain stored on a user harddrive after pruning has occurred?
2
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3answers
1k views

What do pruning nodes contribute to the network?

Pruning nodes are described in the sourcecode thusly: -prune=<n>: Reduce storage requirements by pruning (deleting) old blocks. This mode is incompatible with -txindex and -rescan. I’ve ...
3
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2answers
652 views

Can a blockchain be created that forgets transactions whose outputs have been spent?

Is it possible for a blockchain based currency to say, after all outputs have been spent from a transaction to "delete" it from the blockchain, or at least require the nodes not to download it, what ...
2
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1answer
157 views

What are spent transactions?

Satoshi's paper says: Once the latest transaction in a coin is buried under enough blocks, the spent transactions before it can be discarded to save disk space. What are spent transactions?
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1answer
141 views

Decentralized Data Storage System in NXT - How do you disable the 2 week data pruning?

Currently the NXT platform has the ability to store data in its blockchain, whereby making it a decentralized data storage system. But the thing is that the data is purged from a nodes blockchain ...
1
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1answer
121 views

Embedding P2Pool technology in Bitcoin Core

As far as I understand, P2Pool is a way to decentralize mining. I don't know all the details, but it allows to distribute the mining rewards by the parties involved, fairly and without a centralized ...
34
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3answers
22k views

How can I run bitcoind in pruning mode?

I read this comment: You could consider running a pruning node, which is practically the same as a full node (including security), except it throws away some of the old history. Version 0.11 ...
13
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3answers
4k views

Can Bitcoin-Qt be configured to trim the blockchain?

I run Bitcoin-Qt and Bitcoin Armory on a laptop. I don't have the space to store the whole 20 GB (or however big it is now) blockchain. I understand the need to run through the entire thing for ...
11
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2answers
5k views

How explicitly can the blockchain be pruned?

How can the blockchain be pruned? If the blockchain is tamper-proof thus cannot be changed, how can the data be removed? Please be as explicit as possible.
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2answers
1k views

Why is pruning not considered already at the moment?

I understand that Bitcoin scales in several meanings (Scalability), and pruning is one important concept of it (SE Question). I also understand that a "Simplified Payment Verification" (SPV) needs to ...
2
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1answer
554 views

Is pruning of the merkle tree implemented in the bitcoin android wallet?

I know that satoshi's client doesn't prune, because we need to store all the transactions so that we can send them to other nodes. But does this android bitcoin wallet from de.schildbach prune? ...