Questions tagged [electrum]

This tag should be used for questions about Electrum, a lightweight Bitcoin client written in Python

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Recovering Blockchaininfo wallet in Electrum wallet

I have my wallet in blockchaininfo and I did the backup of my 12 words (SEED). I would like to open this wallet in Electrum, I notice that Electrum allow to recover a wallet using a SEED from ...
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1answer
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I accidentally used BTC xpub key to generate HD wallet addresses for BCH, can I recover funds?

I am using Exodus wallet and an eCommerce plugin to accept cryptocurrency payments. To generate the HD wallet addresses I needed to provide an xpub key. I accidentally used the BTC xpub key instead of ...
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Create electrum wallet (+android) for altcoin with POS [closed]

I want to compile the electrum source for my POS altcoin for windows and android. Is there any tutorial I can use to get started? Thank you for help.
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1answer
86 views

Wha is the meaning of “Position in mempool” of a transacion?

I am using electrum wallet and when I am receiving a transaction I see an attribute with name "Position in mempool" and the value is "8.61MB from tip". Since the transaction is still unconfirmed, I ...
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1answer
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Why public Electrum servers serving on websocket (WS) are so rare?

Couldn't find a single one. Only TCP or TLS. Am I looking in the wrong place? ( https://1209k.com/bitcoin-eye/ele.php?chain=btc )
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Electrum. Payto argument from_addr

I need to specify address to send from. I want to use option createnewaddress. And then send money from this addresse useing payto and from_addr option. When I do like that, i got error message not ...
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10 views

When using a Trezor with Electrum: (how) can you use a passphrase?

Using wallet.trezor.io is far from optimal (using their infrastructure, their node). So I prefer to use Electrum. But (how) can I use a passphrase when using a Trezor with Electrum?
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1answer
23 views

Electrum open source mobile wallet

I am looking for open source mobile wallet which supports electrum protocol. Already found 2: https://github.com/coreyphillips/moonshine https://github.com/ACINQ/eclair-mobile But first one looks ...
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1answer
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bitcoin-cli createwallet electrumpersonal server true

I'm a noob following instructions to setup Electrum Personal Server on Linux. I came to this instruction and I'm stuck. Got an warning. What is this? { "name": "electrumpersonalserver", "...
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Step by Step to Connect to ElectrumX via Nodejs

I am developing a simple app that will need to retrieve BTC wallet Address Balance and relative transactions Initially I thought to use some existing APIs (btc.com, blockchain.com etc.), but the ...
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2answers
72 views

Creating a unconfirmed bitcoin transaction

I know that it's sounds ridiculous, but i need to create an unconfirmed bitcoin transaction that will be unconfirmed for 2+ hours.I came to a conclusion that i need to create a 0 fee transactions but ...
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Creating and broadcasting a bitcoin transaction

I would like to create a bitcoin transaction with no fee . So i tried by creating a raw transaction using some online services and by coding it using node.js and bitcore library , but I did not get ...
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Retrieve my balances

I just recently discovered that i had a GUIminer that i installed in 2012. I also had Bitcoin Core with several wallet.dat files. I have been unsuccessful in running a full node as my computer and ...
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Optimally determine which transaction spent a transaction output

As it has been discussed before, it is very inneficient to find which transaction has spent a transaction output using bitcoin core alone. I found a way of doing it with an electrumx server running on ...
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how to move my Bitcoin core wallet to electrum while syncing

How do I move my btc qt wallet to electrum while syncing? Not address by address. Removed some addresses already but I'm still missing some coins. Don't understand the discrepancy. Any help would ...
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Blocking Port 8333 and other open channels in bitcoin core

in another post someones wrote, Bitcoin nodes use to communicate with each other. You can disable incoming connections on your node if you don't like that (set listen=0 in bitcoin.conf). Now i ...
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Electrum server full node bitcoin core wallet- how to block all outside access?

i have read that with an EPS electrum server, other nodes in the network can "ping" your port , i believe the port no. was 8333. How can I for sure and for any situation block such accesses? The EPS ...
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1answer
67 views

wallet.dat on usb to electrum

I put my btc qt wallet.dat file on a USB and would like to open it on a software wallet. Preferably electrum. Is that possible? If so how? Too many problems with btc qt and takes forever to sync.
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1answer
42 views

Do you need to run own server when using a full node wallet?

Hi can you help out pls: 1) There are some full node wallets like Bitcoin Core or Wasabi. What other full node wallet apps are available to select from for bitcoin? 2) I have read about people using ...
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1answer
44 views

Question about running full node electrum wallet

can you please help: 1) How can you run a full node wallet with electrum? what do you need? Or please link me to an understandable guide for that 2) Do you have to be online always or can you set ...
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31 views

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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btc qt syncing but taking to long/dumpwallet debug console problems

Would like to transfer my btc qt wallet to electrum but having difficulties. My node is currently syncing Tried emptying out receiving addresses and was successful but there are still more coins in ...
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73 views

Cannot open dump wallet file (code-8)

Is anybody familiar with this problem using btc qt debug console? Would like to dump wallet and sweep into electrum.
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Trouble dumping btc wallet

Btc is syncing and taking to long. Would like to dump wallet and sweep in electrum. When I try the dumpwallet command I get "Cannot open wallet dump file (code -8)" What to do? Do I have to stop ...
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2answers
61 views

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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1answer
45 views

Why is 'p2pkh:' prepended at the beginning of private key addresses in electrum?

I recently started a Blockchain course and came across the electrum software. While going through the list of wallet addresses and associated private keys I found that 'p2pkh' is placed at the start ...
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153 views

Not seeing deposit transaction in Electrum from BTCPayServer after invoice has been paid

I have imported my xpub into btcpayserver store and created some invoices and paid them. The btcpayserver wallet shows the balance from the invoices as having been paid. However when I look at ...
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47 views

Security trade-offs between centralized wallet system and a SPV wallet?

there are many wallets on the market. And I would appreciate if someone can clarify the key technical security advantages or disadvantages when using a SPV wallet vs a centralized wallet. I am ...
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Why do the xpubs from electrum and trezor not match when creating a multisig wallet?

For a little background, I am trying to set up a 2-of-3 multisig wallet with 2 trezors and a coldcard. I am trying to verify that my setup is correct before putting any meaningful amount of money in ...
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42 views

transfer btc core wallet to electrum

I am running a btc node and it is taking too long to sync. Is there any way to transfer the wallet to an electrum wallet? If so how? 1)Upgraded my btc node 2)Syncing 3)Transfer receiving addresses ...
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1answer
164 views

Is it possible to use Electrum to create a multisig wallet with a trezor and an airgapped coldcard?

I set up a 2-of-3 multisig using Electrum, a Trezor, and a Coldcard. During testing, I ran into issues using the Coldcard to sign. My approach: (On Electrum) File -> New/Restore -> Multi-signature ...
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Not able to Spend Electrum [2of2] Multisig

I recently sent btc to a multi-sig address, not realizing at the time. Now, when I attempt to begin a transaction; I am prompted swiftly with a (Partially Signed (1/2)) message, and given no ...
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1answer
35 views

Get scripthash for known scriptPubKey in PHP

I have to query addresses in ElectrumX server. How do I generate scripthash for a known scriptPubKey in PHP? Example address: array ( 'isvalid' => true, 'address' => '...
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1answer
49 views

Calculating the cost to send bitcoin?

This is a follow-up post to this question. I am using Electrum to send Bitcoin. From what I can gather, it doesn't seem like there is a way to know your "inputs" upfront. The inputs are the various ...
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30 views

Electrum history working locally, but not on server?

If I type this locally: electrum server Then I see the correct details: { "summary": { "end_balance": "0.009", "end_date": null, "from_height": null, "incoming": "0.009", "outgoing":...
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0answers
100 views

Intermittent error “min relay fee not met” even with decent fee and custom Electrumx+Bitcoind

I have an automated system that sends BTC payments via Electrum for a client. Now, it happens again and again that payments keep failing with "min relay fee not met" (RPC call failed: {"code":-32603,"...
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1answer
15 views

How to access Electrum remotely via the rest api?

I am able to execute calls on the server from the server. When I say calls, I mean like this. I.e. I can get the latest addresses doing something like this: $ch = curl_init(); curl_setopt($ch, ...
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1answer
58 views

Delete a specific private key from an Electrum 3.3.8 wallet via the command line?

I imported a few private keys into my electrum wallet via the command line. Now I want to delete these specific private keys from electrum 3.3.8 - What is the command to delete these keys from my ...
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47 views

Lost Transaction from Blockchain.com to Electrum

This link, https://www.blockchain.com/btc/tx/a081d03519bc0f1dcf4ac391da6f54d4d6091c458530b620f96eca5c1c5a3511, shows the transaction was delivered to the address "1Mv4fi8UdVhbfm9iLx2Bf8xhDrMv9sZSyD" ...
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2answers
43 views

Is the electrum android private key secure?

I have used electrum for many years on my desktop pc, and have alway felt very secure in doing so because of my ability to use a very strong password to encrypt my seed phrase with. However I just ...
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1answer
223 views

What are the difference between a segwit and legacy wallet

I am installing a mobile wallet and it ask me what type of address I want to use, I want to try and use a segwit address but is there a risk that my coins will be lost if I try to transfer fund from ...
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1answer
49 views

Can I import my wallet while my btc core is syncing

I'm upgrading my btc core to v0.18.1. I'd like to export my wallet to electrum. Is it possible while syncing? How?
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1answer
85 views

Electrumx protocol

The description states: A script hash is the hash of the binary bytes of the locking script (ScriptPubKey), expressed as a hexadecimal string. The hash function to use is given by the “hash_function” ...
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1answer
30 views

Imported keys to electrum

I recently had an unconfirmed transaction on my btc qt wallet. I am upgrading my btc qt now and it is syncing. In the meantime I imported my keys from all my receiving addresses to a software wallet. ...
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1answer
36 views

Electrum-personal-server isn't seeing any historical transactions; using a Trezor

I followed the instructions in the Electrum Personal Server guide. I know that the transactions are there because I checked wallet.trezor.io. But none are showing up in Electrum. I have run --rescan. ...
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2answers
1k views

Transaction with highest fee, but stuck, what did I do wrong?

I recently sent btc that appears to be stuck (https://live.blockcypher.com/btc/tx/c131d65d933e343f852021830b833123de952c1857f264503388cf642655c457/) The interesting thing is that I used a higher fee (...
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2answers
206 views

Unconfirmed transaction. How to make my wallet made whole

I am running a node with an unconfirmed transaction. I tried shutting down my btc qt so the transaction would be forgotten. To no avail it keeps rebroadcasting the transaction. I am in the process of ...
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0answers
35 views

Esplora on local elementsregtest - parse failed: data not consumed entirely when explicitly deserializing

this is related to esplora (the block explorer) and its electrs backend API. Is it possible to run esplora for a just a local elementsregtest? When I launch electrs this is the error I receive back: ...
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1answer
47 views

Electrum address syncronization

I need to periodically check the balance of a number of bitcoin addresses (a few tens or hundreds addresses). I noticed that Electrum may syncronize a thousand or more imported addresses in a matter ...
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1answer
35 views

Are transactions with an insufficient value marked as “failure”?

I have made a payment with an installed CardGate(curopayments.com) bitcoin gateway on a site, got a unique deposit adres, i sent a bit less than actual asked. The problem now is that the site owner ...

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