Questions tagged [synchronization]
This is the process of bringing a Bitcoin client up to date with the list of all Bitcoin transactions known as the blockchain.
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Bitcoin Core resume
iam downloading the 350GB Core database via slow network.
iam not shure, if an correct resume occurs, if i need to breask the transmission.
my question:
is there any risk for inconsistence of bitcoin ...
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Multisig synchronization
I understand what the multisig wallets are but I need help understanding what exactly this script does:
https://gist.github.com/gavinandresen/3882537
If I understand correctly, bitcoinds are bitcoin ...
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bitcoin-qt 0.21.0 in win10 keep hight disk I/O, and GUI not respond
My OS is win10, and I used to use bitcoin-qt 0.13.0, it was fine but I found it syncs very slow now, so I upgraded bitcoin-qt to 0.21.0.
I feel 0.21.0 syncs much faster, but it always keep high disk ...
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Is there a way to only sync up to a certain block?
I am planning on doing some transaction analysis on the blockchain, however, I only want to do it on a small part of the blockchain first and then run it on the full blockchain later on. I have ...
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Deleting Electrum wallet and setting up new one
I set up an Electrum wallet before I learnt that you should verify the signature. While I went straight to the electrum.org website to download it, I would still like to be secure, just in case. So I ...
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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 ...
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Am I seriously going to have to keep this clunky old infernal machine running for weeks upon weeks to sync the blockchain? [duplicate]
Yesterday, I dug up my old computer, set it up physically, installed Linux Mint with full disk encryption, installed Bitcoin Core through its software manager, started it, immediately selected "...
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Why would Bitcoin Core freeze my computer when syncing? And is it supposed to take this long?
24 hours ago, I finally bit the bullet and dug up my old computer, set it up physically, installed Linux Mint (with full disk encryption), installed Bitcoin Core through its software manager, started ...
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To what extent is the actual downloading of blockchain data what slows down a "fresh sync"? [duplicate]
I've just sat an old computer with fresh Linux Mint and Bitcoin Core installed to sync from scratch. Since its HDD is 250 GB, I had to enable "pruned mode" since the blockchain is currently ...
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How isn't blockchain fundamentally broken?
This question is a good 3 to 5 years late on the crypto trend but nevertheless I'm still having trouble to understand.
The chain works by verifying every previous block, right? How does this not ...
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Bitcoin QT wallet.dat file location? [duplicate]
It's been since 2013 when i was mining bitcoin that i have used and synchronized this wallet. I've tried a few times several years ago but it literally takes days, if not weeks now to synchronize, AND,...
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Can I interrupt the initial blockchain download without losing progress?
I just installed Bitcoin Core through brew on my mac.
The blockchain is now downloading but it's slowing down, so I would like to restart it.
Can I abort the process and restart it and will it pick up ...
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Why is it bad to download the full chain from a third party with Bitcoin Core?
I know Bitcoin Core downloads and processes the full chain much quicker now than it used to but what exactly is so bad about downloading a compressed blocks, chainstate and database folder from a ...
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Very slow sync on low end PC - what to upgrade?
[Hi, I have to re-ask this question because I cannot recover my account from the last one. Sorry about that.]
I am a newbie to bitcoin. I am trying to sync a full node on my low end PC: 2g RAM, dual-...
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Will Upgrading Ram on Low End PC Make Core Sync faster?
I am a newbie to bitcoin. I am trying to sync a full node on my low end PC: 2g RAM, dual-core 2ghz, 250 gb regular HDD. It is in pruned mode. The initial 15% synced in a few days but now the process ...
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How to improve bitcoin-qt when downloading blockchain? (very technical, dev views appreciated)
GitHub suggested discussing here before bothering developers with an issue.
So be it! :)
I'm running Bitcoin Core Version v0.20.1 and Linux Mint 18.3 on crappy old hardware. Pruning blockchain to 2 G ...
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Initial blockchain sync stuck on block 237158
Stuck on block 237158. Rebooting doesn't work.
Do I need to start from scratch?
admin@raspberry2bit:~ $ sudo tail -f /mnt/ext/bitcoin/debug.log
2020-10-26T08:48:30Z Loading addresses from DNS seed ...
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Blocks seem to store only txIDs, where does the transaction data come from for IBD?
I know that blocks store transactions. After looking into a block, I can see that it only stores txIDs.
Question 1 - Where are actual transaction objects stored?
If you tell me that it's stored in a ...
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Download blocks in blk00000.dat format from a specific period
For study purposes, I would like to download blocks from a specific period, i.e. January 2017 - June 2017, in blk.dat format (blk00000.dat, blk*.dat).
I downloaded blockchain.core but it makes me ...
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How can I know that a full node has finished the initial synchronization process?
I run a full bitcoin node. I launched it several days ago and it has consumed around 300 GB of traffic already which implies that it is about to finish the initial syncronization process.
Except for ...
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Change IBD Location Prior to Download
I'd like to run Bitcoin Core but my laptop can't handle the load. I have an external drive with enough space, but I'm unsure if/how to change the file destination upon opening the program. Is this ...
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Wallet download issues, cannot restore backup
greetings everybody .....
I hope everybody is safe. I have a problem recovering my wallet, earlier this year there was a link on the website that make me able to access my wallet and recover the ...
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The Mystery: I've mined some BTCs with Bitcoin Core 0.9.0, however the system no longer synchronizes and in the blockchain the balance is zero
I got some BTCs using a Bitcoin Core 9 version beta, from August to December 2019, they are listed in my history as "generated" and with several confirmations with one, the balance appears ...
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How to detect that full node is in sync (using jsonrpc)?
I have full bitcoin node available through jsonrpc interface. How my app can detect if this node is in sync with the network?
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Funds received still shows pending and unavailable until confirmed in Exodus. Should I be concerned?
I have a transaction I received in my account that has been marked as pending for the last 12 hours (now 16) and counting. The BTC and US equivalent shows in my wallet (Exodus) but the wallet has it ...
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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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Can an unsynchronized node create a valid transaction?
I'm trying to understand how bitcoin transactions work. From what I understand, in the Bitcoin network nodes hold different versions of the Blockchain and after some time the different chains start ...
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Missing transaction in newly installed Bither wallet
On bitcoin.org I learned about the Bither wallet.
I installed it, created an HD account, and replenished the wallet sending to the address 19QpMgv2N2hSJNq6Nrkg1rzJ1Fc9s2Pjbf. As can be seen, the ...
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Bitcoin Core wallet fails to load and requires reindex after I already did it
My Bitcoin Core is synchronized. But I can't open a wallet, it says that I might need a reindex. Though I already did it. Also I can't do dumpprivkey because it says that no wallet is loaded.
How can ...
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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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Why does bitcoin sync inventories?
I read the bitcoin docs describing how btc syncs. During IBD it gets the inventories up to the tip with getblock. Why does it not skip this step and get the blocks, generating the inventories as it ...
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How to download bitcoin blockchain without core?
I tried to download the entire blockchain using bitcoin-core but i took about 9 days and eventually gone corrupted and i had to delete and restart. Any source to download through torrent or regular ...
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What should I do to increase bitcoind sync speed?
My VPS has 2gb RAM and CPU core is 1 and 1 TB HDD storage. The sync speed is very slow. Currently it has about 700 MB free RAM. bitcoind is taking about 66% of the 2GB ram.
Should I add 1GB more RAM ...
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After a sleeping client comes online again which technique it uses to find the last common ancestor in a blockchain?
I have a Bitcoin client running on my PC and I turn it off. When I turn it on again how does it find the last common block in the blockchain so that it knows which blocks it should obtain?
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Re-index/Re-download from specific height?
I seem to have discovered corrupt blocks on one of my nodes. The node is on all the time to keep up to sync and the rest of my nodes connect to it to retrieve block data when they need to sync. The ...
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How to speed up first sync bitcoind?
I am running bitcoind version 0.19.0.1 on different cloud providers and it gets very slow at some point. After 300k blocks, CPU drops from ~90% to 5% and network usage drops to a minimum. I've tried ...
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How does Bitcoin Core know the progress of blockchain without connecting to peers?
I restarted my Bitcoin Core node after a gap of about a day and when seeing the console log, I noticed that it calculated the progress of my blockchain even before connecting to peers. The log ...
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IBD problem: Reindexing blocks and syncing starts over every time I shut and open Core
I am currently doing IBD in segments due to logistical reasons, but each time I safely shut down Core and unplug my hard drive (HDD, 1TB) and then plug it back in and start up Core, it starts in 2009 ...
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btc qt walletdump
I'd like to dump my entire btc qt wallet, while syncing, into an electrum wallet.
I don't want to do it receiving address by receiving address.
I already emptied out all my receiving addresses but ...
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how do you transfer your Bitcoin core wallet while syncing?
I would like to transfer my btc wallet to an electrum wallet. Syncing is taking to long.
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When will I receive bitcoins
Today I sent bitcoin to my bitcoin core wallet. I used an address under recieve bitcoins. The transaction has been cleared on the blockchain for several hours but is not showing up in my wallet. ...
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What testnet environment and configuration for Bitcoin?
Every tutorial I have gone through to download bitcoind, I haven't been able to complete because my computer can't handle the full node download.
These are my specs:
2017
Processor - 2.3 GHz Intel ...
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bitcoin core problem payment
I downloading bitcoin core on my computer. But my computer is full, and downloading is not complete. I made transfer my bitcoin to URI on bitcoin core, which downloading. But nothing came and I didn't ...
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How does a node find the active chain?
Let's say a user joins the Bitcoin network and downloads the latest state of the blockchain (all blocks, which includes the forks/uncles). How does this user find/determine the active blockchain on ...
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How can I start bitcoind without blockchain synchronization?
Suppose I make a locked wallet with 50000 pre-generated addresses.
As long as I researched, only way I can collect those 50000 addresses using RPC and "getnewaddress". Feel free to correct me.
I ...
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Does bitcoin qt need to synch before I can spend my change?
Sorry for the follow up question...
i was trying to transfer my btc to a new wallet (believing the original one had been compromised).
I sent 2 tiny test transfers of $1 then when they arrived in the ...
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Bitcoin Core Blockchain Sync Fatal Internal Error - Corrupt Block - Linux
I'm trying to perform the IBD on Bitcoin Core 0.18 and I continually receive "Fatal Internal Error" at seemingly random intervals, closing bitcoin-qt and preventing me from fully syncing. Farthest I'...
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Bitcoind Node crashes after using -dbcache option
I've been trying to speed up my node sync by increasing the dbcache. However my node tends to crash overnight. My system is running ubuntu 18.04, 4GM of ram bitcoin core v0.18.
I've tried bitcoind -...
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What are the downsides of integrating accumulators like Utreexo to bitcoind?
Inspired by the discussion on this question, I wonder what the downsides would be of adding accumulators like Utreexo (site, paper) to bitcoind?
On the positive side, it seems like a huge improvement ...
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Bitcoin core crash during IBD
I've been running bitcoin core on an android device (nexus 5x) and emulator, and sync on testnet always fails at around 3% progress
the last thing logged is
“pre-allocating up to position 0x900000 ...
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