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Questions tagged [testnet]

The testnet is a network separate from the main Bitcoin network that allows developers to attempt modifications of the bitcoin protocol safely and test in-development software without risking money.

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is this normal to have 22000 transcations in a testnet block of bitcoin

So I having this issue where in my local system when I hit getblock RPC method in a public node, for block number 2813986, I get around 22000 transactions in it, But when I check on blockstream.info/...
Sudhanshu Sinha's user avatar
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68 views

What is the correct way to calculate testnet BTC fees?

Recently, the fees on Testnet seem to be going wild. I tried to send 20,000 satoshi and it cost me 27,000 satoshi. I used a feerate based on blockstream.info's fee estimate and calculated the fee ...
ron s's user avatar
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Why can I not find my transaction in the mempool?

I built a native segwit raw v2 transaction with the pwpkh addresses, and get the decoded transaction as the follows { "version": "02000000", "marker": "00", ...
Jack Tsia's user avatar
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1 answer
49 views

Testing new releases privately on selected nodes?

I think the main vulnerability of Bitcoin is a new release messing things up in a way that it will completely destroy people's faith in the protocol. By this I mean something like what happened in ...
mathboi's user avatar
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67 views

Why doesn't my bitcoin testnet address work on testnet faucets?

I have created a bitcoin testnet address but it shows invalid address. I have created it using this way passphrase = b'blah' secret = little_endian_to_int(hash256(passphrase)) print(PrivateKey(secret)....
kenadams15's user avatar
1 vote
1 answer
52 views

I cannot broadcast my raw tx (P2PKH) on testnet: Signature must be zero for failed CHECK(MULTI)SIG operation

I am trying to broadcast my transaction on the test network with no success so far. I get always this error: sendrawtransaction RPC error: {"code":-26,"message":"mandatory-...
Dot Brian's user avatar
2 votes
0 answers
29 views

Intermittent connection issues - 'DataStream::read(): end of data: unspecified iostream_category error'

2 nodes run by me locally sometime connect sometime not and getting 'Connection refused' error on the node I am connecting from. On the node I am connecting to debug.log error message display the ...
Seccobit's user avatar
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4 answers
65 views

Is it bad for a Bitcoin regtest address to have 1 as it's prefix

From the link below i read that it is dangerous for a Bitcoin regtest address to have 1 as it's prefix can someone explain why The link : Address starting with 2, what mode I am in?
Dev Tenji's user avatar
1 vote
1 answer
339 views

Where can I find a testnet or signet explorer?

We have several questions that boil down to "where can I find a testnet explorer?". Unfortunately, most of the answers on those questions are outdated. I’ve started this community wiki to ...
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1 answer
66 views

transfer funds from regtest to real testnet

is there a way to transfer tBTC from regtest to a real testnet wallet? I know how to create a regtest, but not (if is possible) how to transfer to testnet.
Klgor's user avatar
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1 answer
774 views

Is it real BTC or fake [duplicate]

All, I received some BTC to my coinbase wallet after someone asked me to setup custom network using the below setting. I received the BTC but I couldn't transfer to any other wallet and the says ...
san's user avatar
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need help with BTC transfer [duplicate]

All, I received some BTC to my coinbase wallet after someone asked me to setup custom network using the below setting. I received the BTC but I couldn't transfer to any other wallet and the says ...
san's user avatar
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1 vote
0 answers
47 views

Is versionbit 28 on testnet something that can be disregarded?

My testnet node is displaying a value in the getblockchaininfo warnings field related to versionbit 28, which I see referenced in various threads going back years. The angles I'm trying to address are:...
Nicholas Sandomeno's user avatar
3 votes
2 answers
256 views

Bitcoin Core configured for testnet, syncs mainnet

I'm trying to get Bitcoin Core to sync the testnet, but it keeps syncing the mainnet instead. Here is my bitcoin.conf file: [test] addnode=104.237.131.138 addnode=151.80.205.132 addnode=192.155.82.123 ...
Zephyrus's user avatar
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29 views

Which chain for developing a BTC based app? [duplicate]

There appear to be four chains you can use with bitcoin-cli. Main, test, signet, and regtest. Main is off the list obviously but I'm not sure which other chain I should be using. I'll need to be able ...
Cromulent's user avatar
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101 views

Confusion in testing RPC and curl

Please forgive the ignorance of a beginner. I started a test network (bitcoind -testnet rpcuser=zz) When I run bitcoin-cli -testnet getbestblockhash, everything works fine and I get the correct ...
张荣海's user avatar
1 vote
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131 views

Transactions only work the first time

I'm implementing the code to sign and send Bitcoin transactions on testnet, using the bitcore library, in javascript. I need some help, as once I try to broadcast my transaction, it gives me this ...
AlexCav's user avatar
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1 vote
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Bitcoin Testnet blockchain data torrent

Is there a torrent to get the blockchain data faster for Bitcoin Testnet?
user142267's user avatar
2 votes
2 answers
717 views

How do I generate a testnet segwit v1 taproot compliant bitcoin address?

I have a script that generates a segwit v1 taproot compliant address and private key. The script currently generates a regtest address but with minor tweaks it spits out a mainnet address. I think the ...
ChristianOConnor's user avatar
1 vote
1 answer
277 views

How to setup Alby wallet for testnet bitcoins

I'm trying to test out the Alby wallet. I wanted to test it's working with fake testnet bitcoins (tBTC). I tried to follow this guide: https://github.com/getAlby/lightning-browser-extension/wiki/Test-...
Siddhesh B. Kukade's user avatar
1 vote
0 answers
119 views

In electrum, how do I set --testnet by default via setconfig?

As part of a Docker container, I am pre-configuring the Electrum daemon with using setconfig in offline mode. How do I set --testnet by default as a configuration?
Meglio's user avatar
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3 votes
1 answer
857 views

How to resolve error when trying to sign and broadcast PSBT transaction via electrum - (Witness program hash mismatch code -26)?

I'm trying to generate a 2-of-2 multisig transaction as a PSBT so that both parties can easily sign their transaction. I'm doing this all on btc testnet as a p2sh p2wsh transaction When initially ...
btctestdev11's user avatar
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0 answers
53 views

How long does it normally take to set up a test node? How much of your disk is utilized?

I did a complete factory reset on my computer and simply started over. I have a Aorus 5SE with windows 11. I am using VirtualBox 7.0.6 and Ubuntu 20.04. My new virtual machine has 4GB of base memory, ...
CullerWhale's user avatar
7 votes
2 answers
312 views

Why doesn't signet use a unique bech32 prefix?

I noticed that signet and testnet both use tb1 addresses. Why doesn't signet use a unique prefix that distinguishes it from testnet?
Casey Rodarmor's user avatar
1 vote
1 answer
116 views

Unable to use UNIX timestamp for locktime on testnet

I am trying to create a timelock transaction, but I am unable to use a UNIX timestamp on testnet. However, if I use a block height the transaction works. When I use a block height that is in the ...
Cannabijoy's user avatar
0 votes
1 answer
53 views

Is it possible to import a LN snapshot into the regtest network (possibly pruned version)?

I am currently writing a bachelor thesis where I plan to conduct some experiments on regtest network to evaluate how effective a particular rebalancing algorithm performs compared to currently used ...
dancingsushi's user avatar
0 votes
1 answer
421 views

Open channel (LN) in Electrum testnet is not accessible?

I use Electrum wallet (version 4.3.2) on tesnet (apple desktop). The testnet balance is 0.02 tBTC. Under the 'Channels' tab, the option 'Open Channel' is there but it is not clickable. Is LN testnet ...
jfjobidon's user avatar
  • 285
2 votes
1 answer
77 views

What is the history on how previous soft forks were tested prior to being considered for activation?

How were previous soft forks tested prior to being considered for activation? Were they added to the default testnet? Was a custom testnet setup with the soft fork functionality available on that ...
Michael Folkson's user avatar
2 votes
1 answer
662 views

Running a local testnet

a newbie bitcoin researcher here. For my first work I need a local bitcoin network on which I have as much control as possible. I have a windows machine. For example - I need to control the number of ...
michaell_co's user avatar
1 vote
2 answers
455 views

Bitcoin core sync stuck with an error "peer=X is stalling block download"

I have installed bitcoin core (23.0) on a virtual machine (Debian GNU/Linux 10, x86_64) and tried to start the testnet initial block download. Unfortunately,a few days ago blockchain sync is stuck on ...
dancingsushi's user avatar
1 vote
1 answer
151 views

NBitcoin in C# MVC App Gives Me A WitnessProgramMissmatch Error When I Try to Build The Transaction

I am writing tests for an app I built that uses NBitcoin to send bitcoin and make bitcoin transactions. I have the following code to create fake bitcoins for an integration test: private ICoin[] ...
ChristianOConnor's user avatar
2 votes
1 answer
398 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 ...
zerotobtc's user avatar
  • 323
0 votes
1 answer
116 views

Where to look for the lost BTC

My Tx on btc-testnet seems not transact all the BTC, but there's no UTXO back to my address. How to find the rest of the BTC? Tx 7e0cc1e5c944355e6d448de19a67421eef2a6b4ca4ed58fcd990ce75f66d07a9 1 ...
Paul Yu's user avatar
  • 35
1 vote
1 answer
316 views

Dust threshold for Testnet

I want to find a dust threshold following this answer: https://bitcoin.stackexchange.com/a/86069/134293 Actually I have a list of transactions coming from listsinceblock in which there are Testnet ...
Giacomo Brunetta's user avatar
0 votes
1 answer
115 views

Does testnet block 855996c9444827112b68c0606d8dfec62385d1b3448e412bc1c721633a641669 discard the block reward?

I am poking around in the testnet blockchain, and I saw a block mined recently where the outputs added up to just 0.04953672 BTC. Since there is no output for the 50BTC block reward, does that mean ...
Dave M.'s user avatar
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0 votes
0 answers
30 views

Unknown new rules activated (versionbit 1) when running Core v22.0.0 on testnet [duplicate]

I have got "Unknown new rules activated (versionbit 1)". I am running Bitcoin Core v22.0.0 on testnet. This seems to be the last version as of today (April 17 2022). I am running a taproot ...
Anton Krouglov's user avatar
1 vote
0 answers
375 views

Looking for Lightning Testnet Wallet with Lnurl capabilities

I'm looking to test an lnurl withdrawal. I created an lnurl withdrawal url using the OpenNode api. I have an htlc.me testnet lightning wallet. But it doesn't seem to have a way to input lnurls. Is ...
Dashiell Rose Bark-Huss's user avatar
0 votes
1 answer
537 views

Private keys for mainnet vs testnet

If I have valid private key to use on Bitcoin mainnet, can I use the same key to generate addresses and spend on testnet? If so, is this encouraged, or should one generally keep separate keys to use ...
sziegler11's user avatar
2 votes
0 answers
302 views

"Non-mandatory-script-verify-flag (Invalid Schnorr Signature)" on testnet

I'm using the FROST algorithm to create a threshold signature for some taproot output (using this code). When I tried using it on the testnet, it works most of the time but from time to time I would ...
sa8's user avatar
  • 75
1 vote
2 answers
583 views

Port 9735 for both MAINNET and TESTNET

The default port for the Lightning Network is 9735. This is the case not only for nodes on MAINNET, but also for nodes on TESTNET. Why is that? What's the purpose of this? Wouldn't it make more sense ...
Dalit Sairio's user avatar
0 votes
0 answers
74 views

Bitcoin transactions towards and from a Taproot

I am trying to solve a problem that was given to me as study material for a coding test. The problem requests the following: Create two Bitcoin transactions in testnet, one spending towards a Taproot ...
bitlearner's user avatar
2 votes
1 answer
137 views

Bitcoin testnet addresses

Why bitcoin addresses in testnet are not the same as in mainnet? For example ethereum address in mainnet can be used in testnet's (ropsten, rinkeby).
gost1k's user avatar
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0 votes
0 answers
144 views

BTCPay Server with lightening over testnet - Payment issue

I have recently deployed btcpayserver over testnet to demonstrate the user experience to my colleagues. Lightening Implementation: LND Following are setting Every thing seems ok I can see the service ...
Mubashar's user avatar
  • 101
1 vote
1 answer
162 views

Understanding zmq notification output

I wrote a blockchain listener program for my testnet node. It's working fine and the output size of new transactions matches the ones monitored by blockchain.com. The output looks like this: No: 476 ...
zerotobtc's user avatar
  • 323
0 votes
1 answer
187 views

Help decoding transaction on bitcoin testnet

I'm trying to learn more about bitcoin and I'm trying to decode a transaction I made to myself on testnet and I can't seem to figure out a couple of things Here is the output of getrawtransaction: ...
btcnewb's user avatar
3 votes
1 answer
852 views

How to get all ip address of nodes in bitcoin testnet

There are many service to get all fo the ip address in bitcoin mainnet but I can't find the similar way to get all ip address in testnet.Is there a way to do it?
Rambler's user avatar
  • 31
2 votes
1 answer
182 views

Issue when broadcasting Taproot transaction to older nodes

I'm trying to broadcast a Taproot transaction to random nodes across the network (Testnet3). When I try to broadcast to older nodes like 0.18.0, I get the error "Witness version reserved for soft-...
user avatar
3 votes
1 answer
788 views

Where can I find taproot spend examples on testnet/signet?

I am in the middle of writing some Taproot libraries and would like some testnet/signet p2tr spends. Is there an easy way to find them? Most explorers don't have any filters like that. Even a list of ...
Jimmy Song's user avatar
  • 7,759
1 vote
0 answers
45 views

Connection Reset after sending mempool message

I build a python script to talk to bitcoin test nodes. When I'm sending mempool messages, my connection is getting is reset. Also sometimes when connecting to Jimmy Song's testnet node (testnet....
Bitcoingraffiti's user avatar
0 votes
0 answers
164 views

bitcoin-qt -testnet wallet dumped error EXCEPTION: NSt8ios_base7failureB5cxx11E

I got an error message but don't understand what to do now, to fix this. ************************ EXCEPTION: NSt8ios_base7failureB5cxx11E CDataStream::read(): end of data: iostream error ...
BG media's user avatar

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