Questions tagged [pruning]

For questions about Bitcoin Core's pruning feature.

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Trusting only the proof of work to receive payments

I understand that a pruned node needs to download all the blockchain in order to verify the blocks and construct the UTXO set. But wouldn't be possible to download the headers only? Let's say if the ...
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1 vote
1 answer
84 views

How to configure a testnet node to be pruned?

I have a testnet VM node running. As I have only limited resources, I did set pruned=1000 in the bitcoin.conf file, so the blockchain is pruned down to 1GB. But when I run bitcoind and it downloads ...
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Pruning mode in Bitcoin Blockchain [duplicate]

How can a node chose to use pruning mode where it can discard uneeded transactions history after validation is complete?
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1 answer
46 views

Pruning Blockchain and creating multi wallets

I am trying to determine if I could use pruning blockchain option on my future bitcoin node or not. I will create a multiple wallets by RPC calls and I need to be able to check the history of ...
2 votes
2 answers
128 views

How do I switch a pruned node to "neutrino mode"?

According to Lightning Lab's documentation, Bitcoin Core can be run in "neutrino mode" to serve block data without storing transactions. I've been running Bitcoin Core in pruning mode and ...
1 vote
1 answer
46 views

Does pruning reveal anything private such as one’s UTXOs?

I am writing a hardened Bitcoin node guide and I don’t fully understand the implications of pruning. My understanding is that when one has a full copy of the blockchain, the node itself doesn’t reveal ...
3 votes
1 answer
176 views

Removing stale blocks using prune=1TB

I'm running a block parser that reads blocks/*.dat and I've noticed it dumps the stale blocks as well as the main chain blocks. My project only needs the main chain blocks, and I noticed that Core's ...
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1 vote
2 answers
41 views

mempool web app on pruned node

What would happen when running mempool web app on top a catched up pruned node and track back to old transactions no longer in persistent storage? Would it behave buggy? If so, would be in scope not ...
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1 vote
1 answer
80 views

Connecting A Wallet To A Pruned Node

I've connected sparrow wallet to a pruned bitcoin node but all my utxos are not showing. I would imagine that since I haven't spent them and since pruned nodes still keep the entire bitcoin UTXO set, ...
0 votes
1 answer
61 views

Does running full node in prune mode contribute to BTC network? [duplicate]

If I run current (v22.0.0) full node in prune mode will it contribute to the BTC network (better security, etc..)? In v11.x.x the relay was not working hence no contribution to the network at all (if ...
2 votes
0 answers
164 views

Pruned Bitcoind Backend for LND with txindex enabled for version > v0.13.0

I'm looking to prune a bitcoind node that will be used by LND. https://github.com/lightningnetwork/lnd/commit/410b30b9caaf59a78a29d8b924e14395b7daa59d From the LND commit recently by Kixunil. Note ...
1 vote
2 answers
141 views

Prune full node recovery after 1 month of inactivity

Alice is running a prune full node (around 7GB) of storage for prune node. It was working fine Due to power outrages, Alice prune full node was shutdown for 1 month. can this full prune node recover ...
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2 answers
75 views

Can Confidential Transaction in Liquid Network Blockchain be pruned

From a bitcoin full node, we can prune the blockchain from 350GB to 7GB (as of 30thJune2021) by storing the latest UTXO set plus maybe 120 latest block (for possible orphaning or block reorganization)....
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1 vote
0 answers
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Can you prune blockchain without redownloading?

I've downloaded the whole blockchain now I want to run a pruned node on another device. But if I klick on prune block storage in bitcoin core, it tells me that reverting this setting requres re-...
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3 votes
1 answer
148 views

If there are a significant number of pruned nodes on the network will it impact network security?

The size of the Bitcoin blockchain is reaching 350 MB and adding more than 60GB per year. I feel verification node centralization a risk if the cost of storage does not drop. My question 1: Is using ...
2 votes
1 answer
148 views

Is it possible to increase the prune size and get bitcoind to pull previous blocks?

for example, currently its: "size_on_disk": 32084546902, "pruned": true, "pruneheight": 650668, "automatic_pruning": true, "prune_target_size&...
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4 votes
1 answer
442 views

If pruning is so safe, why aren't 100% of the Bitcoin nodes pruning? Why keep the unnecessary data?

I have a fully synced, non-pruned Bitcoin Core on this computer. I have an almost-fully synced, pruned Bitcoin Core on another computer. What exactly is the motivation for keeping those 368.5 GB of &...
5 votes
2 answers
623 views

Does running a pruned node support the syncing of other nodes in the network?

I decided to prune my Bitcoin core node to 25 GB. With the blocks that the node has in its data directory (the ones that were not deleted), does such a node support the syncing of other nodes in the ...
0 votes
2 answers
313 views

Retrieving Old Transaction in Bitcoin Core's console -getrawtransactions returns "no such mempool transaction" error

I'm new to running a full bitcoin node. After almost a week I could download the entire blockchain. My computer is running 24/7 to support the cause. When I tried to verify some old transactions that ...
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1 vote
1 answer
3k views

Pruning Blockchain, what does it remove?

I am trying to determine if I want to prune but I'm trying to figure out if it would interfere with anything. Would it interfere with rpc calls to show info on a transaction/block? A full explorer? ...
1 vote
1 answer
433 views

Can I use blockfilterindex in pruned mode?

I run a node in pruned mode. I want to enable blockfilterindex. What I expected the node to do was: start downloading blocks from the very beginning; create the block filter as it goes through the ...
0 votes
0 answers
31 views

How can I install Bitcoin Core without having a 350GB harddrive? [duplicate]

I would like to run Bitcoin Core on my laptop with approx 100 Gb of HDD available. From the installation instructions I understand that a full node must initially download the full approx. 350 Gb ...
1 vote
2 answers
108 views

Shutdown bitcoin-qt during reindexing?

I started bitcoin-qt with --reindex and pruning on. Can I safely shutdown and restart? If yes how? Do I have to pass --reindex again or will bitcoin-qt remember and continue from where it stopped?
0 votes
1 answer
49 views

Is it possible to forward signed transaction using bitcoind prune mode?

Summary: Is it possible to perform createrawtranscation , signrawtransaction and sendrawtransaction rpc call using bitcoin in prune mode? Detail : I want to implement an API that performs p2p BTC ...
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3 votes
3 answers
1k views

How can I import a private key into a pruned node?

I am trying to restore my Bitcoin Core wallet, but I only have the private key and passphrase, I don't have a wallet.dat file. I tried using importprivkey privatekey xxxxxxxxxxxxxxxxxxxx which gave ...
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3 votes
1 answer
79 views

Can pruned nodes perform fee estimation?

The fee estimation in Bitcoin Core is based on the previous blocks. Since the minimum pruning size for pruned nodes is 550 MB, a pruned node may actually not have the last 1,000 blocks, which is the ...
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0 votes
1 answer
250 views

Do I need a Bitcoin full node in order to use BTC RPC Explorer?

I'm thinking of using https://github.com/janoside/btc-rpc-explorer as my json explorer, but I run a pruned bitcoin node. Will this cause issues when running btc-rpc-explorer if I wanted to query old ...
5 votes
2 answers
230 views

Is Merkle tree pruning described in the whitepaper feasible/useful? If not, would there be any alternative?

When I was reading bitcoin-paper-errata-and-details.md written by David A. Harding, I realized that there's probably a common misunderstanding or over-simplification about Merkle tree pruning. What ...
2 votes
1 answer
481 views

What is the current size of txindex folder when txindex=1 set? [duplicate]

Due to reputation limitations, I cannot ask for an update on this question: How much extra disk space does txindex=1 require? What is the current size of the txindex folder when txindex=1 is set in ...
0 votes
0 answers
117 views

How to make pruned node download an arbitrary block?

I want to importprunedfunds for addresses related to the wallet (with the help of scantxoutset) on a pruned node. The problem is raw transactions are needed for this. I found there were some attempts ...
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1 vote
0 answers
490 views

Pruning Blockstore has been running for days

After activating the core (Testnet - Pruned) with the command bitcoin-qt i received the following error: Corrupt Block Database I restarted the synchronization always using the Pruned mode. The core ...
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0 votes
0 answers
45 views

How can I seamlessly extend disk for bitcoin-core full node?

I'm running a bitcoin-core full node and serve customers wallet service (e.g. creating a wallet, sending tx). I set the chain data disk size to 400GB when first setting the node up and the disk is ...
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3 votes
1 answer
398 views

Downloading the pruned blockchain file directly from external source

Using the bitcoin client to have a pruned version of the blockchain can take a lot of time, I was wondering what would be the drawback to simply download an already pruned bitcoin blockchain file from ...
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0 votes
1 answer
262 views

Is it possible to skip verification of blockchain data when using bitcoin core?

Because I need bitcoin core client only for JSON-RPC requests. Will I need pruned initialization or normal initialization of bitcoin core client for successfully running such requests? (I guess client ...
0 votes
1 answer
201 views

Bitcoin core v0.19.0.1 automatically prunes. I keep loosing the blockchain. How can I stop this?

Bitcoin core v0.19.0.1 automatically prunes. I keep loosing the blockchain. How can I stop this? I went into preferences and I de-selected the pruning. I also added the line prune=0 to bitcoin.conf. ...
1 vote
1 answer
59 views

Receiving transactions in prune mode

I am new to Bitcoin. I have downloaded the whole blockchain but I still can't access my wallets because I get a popup telling me to use prune mode. My question is: I know that I have received ...
1 vote
1 answer
680 views

Bitcoin full node - how to run a pruned node, explaining pruning?

can you explain please how I can run a "pruned" node instead of storing all 300GB of data? Is there a difference how you turn your btc client into "pruning" mode among the different clients, bitcoin ...
0 votes
0 answers
255 views

How can I use backup up chain data from pruned node to set up (archivial) node without IBD?

My setup is an old (~2012) laptop + small SSD and a NAS with HDDs. I noticed that trying to sync Bitcoin Core (v0.18) on the NAS was slow, but on SSD was very fast. (Everything is connected via ...
2 votes
1 answer
178 views

Bitcoin core v0.19.0.1 automatically prunes?

Just finished syncing the whole blockchain after days and I realize the bitcoin settings were "pruning", which means I cannot use it as a wallet. is it the normal behavior of bitcoin core v0.19.0.1 ...
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2 votes
1 answer
63 views

Syncing blockchain with prune enabled

I'm syncing a node with prune enabled. Will it download the whole blockchain and then prune to my given settings after, or does it prune as it syncs? I'm currently 34.85% synced Blockchain directory ...
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1 vote
1 answer
2k views

How to import address to a wallet which runs in pruned mode [closed]

I am running Bitcoin Cash node with prune=99000 mode enabled. So, I tried to import addresses of BCH from another BCH wallet by using importprivkey method and I am getting an error: Rescan is disabled ...
6 votes
1 answer
403 views

Why is 550 (MiB) chosen for minimum storage size for prune mode?

As you know Bitcoind can run in pruned mode, thus not advertising blocks to other nodes. Even though it has some drawbacks, saving you storage space isn't a benefit you can ignore. My question is ...
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1 vote
2 answers
155 views

Download the blockchain starting with a specific date

I am in the process of setting up lnd on a separate computer. The computer has less than 200GB available and the actual blockchain is more than 220GB, so I am gonna need to use pruned mode. What I ...
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1 vote
2 answers
294 views

Background information on warning, when closing wallet in pruned mode

What are the implications and reasons behind this warning on gui popup, when closing the wallet: "bitcoin closing the wallet for too long can result in having to resync the entire chain if ...
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2 votes
2 answers
625 views

How to make bitcoin-qt respect -prune?

I'm using Bitcoin Core 0.18.0-rc2 (64-bit) on Qt 5.9.7. How can I make it respect -prune=550? This is the minimum prune number, and should be approximately 550 MB. Yet, my client is downloading ...
0 votes
1 answer
519 views

Bitcoin core node is not starting after -prune is applied in bitcoin.config file

I have a bitcoin core full node version 0.17.1 running on my machine. I want to enable prune on the node to save space on the disk. When I apply -prune=15000 in bitcoin.config file and restart bitcoin ...
10 votes
2 answers
3k views

Running lightning in prune mode

I am running lightning with the LND implementation and a full node. Nevertheless, I heard that it is possible to use Lighting in pruned mode. How is this possible? I read in the LND install ...
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1 vote
1 answer
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What are the issues of running lightning daemon with pruning node?

Most lightning implementations I came across don't officially support pruned full node. Why is pruned mode implementation a challenge? What risk am I taking when I run lnd with pruned bitcoind?
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3 votes
1 answer
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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 votes
1 answer
959 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 ...