Questions tagged [testnet]

This tag should be used for questions regarding the third Bitcoin 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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History of Bitcoin's Networks

Bitcoin main net was launched on January 3, 2009 at 19:15:05 UTC. But what is the history of the two other network options in Bitcoin: testnet and regtest? I think testnet is on version 3, what was ...
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1answer
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What are the various Bitcoin nodes available which I can connect to via my lightning node

I am thinking of running my own lightning node in testnet. Going through the tutorials it seems the lightning node needs to be connected to bitcoin node inorder to get connected to bitcoin network. ...
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1answer
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What is the BOLT 10 realm byte for testnet and signet DNS node discovery?

BOLT 10 describes a node discovery mechanism based on DNS. The query semantics include a realm byte that is 0 by default (Bitcoin). What is the realm byte for testnet and signet? This question was ...
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Should you be able to run a mainnet c-lightning node in parallel with a signet c-lightning node? What about an alternative Lightning implementation?

Running mainnet, testnet and signet Bitcoin Core full nodes on the same machine/same VM works fine. Is running say a c-lightning mainnet node in parallel with a c-lightning signet node on the same ...
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0answers
34 views

Create and send a Bitcoin transaction using the BlockCypher Transaction API

I am trying to use blockcypher restful API for bitcoin trading. https://gist.github.com/matthieu/b07c5ba27bc99188a15f I have created the transactions in the prescribed order, but I am getting an error ...
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1answer
34 views

Select a fee based on confirmation time. How to implement it?

I'm developing a client on nodejs which connect to a bitcoin core node through JSON-RPC. I want the user to be able to select the fee they want based on the time (the same way bitcoin core GUI does it)...
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1answer
121 views

How to make a taproot transaction with bitcoin-cli?

Can you give a simple step-by-step example for a taproot transaction with bitcoin-cli on Testnet?
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1answer
25 views

Blockcypher new transaction request returning more than input and output

I am new to Bitcoin and Blockchain, and Blockcypher.. I am trying to use Blockcypher APIs to create (and sign) and send a transaction (on testnet). The request i provide has 1 input and 1 output, but ...
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2answers
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i received BTC on testnet and the sender said that it is de-activated..it will be activated after I pay a certain fee? [duplicate]

a trader sent me 2 bitcoins on testnet to show that i will receive more after they activate it...I have to pay a certain fee before they activate it
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P2TR outputs on testnet [duplicate]

Anthony Towns shared that Taproot is activated on Testnet. I am not sure if we can create P2TR outputs easily on Testnet right now based on this Q&A by Michael Folkson: How can I spend from a P2TR ...
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How can I mine a block, in C#, on a new Testnet network where no other miners exist?

I want to demonstrate how to use NBitcoin or the most simple C# function to collect transactions for use in a block then sign that block submit it into the Bitcoin-QT network client on the RPC port? ...
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1answer
51 views

How to test RBF on Testnet?

I'd like to do RBF testing on testnet. I'd like to simulate a transaction with too-low fees, aka "stuck" transaction, and then RBF it in various ways. Problem is, all testnet transactions ...
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1answer
154 views

Bitcoin-qt getnewaddress returns address starting with 2

I am expecting it starts with '3' the the results below: getnewaddress "" "p2sh-segwit" 2NFcKJTPZs1syYhwaBkXty6Vt6FEKxD3HTC Is this because I am running on a private block chain?
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2answers
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Testnet3 app will not sync to peers

I was just trying to connect testnet3 to my own testnet node through the "trusted peer" and "skip regular peers" settings, but it seems that in this way it cannot connect to a ...
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1answer
156 views

No path found when connected to the same node

I'm trying to understand how the lightning network works in practice, so I figured I'd just use some Electrum wallets on testnet. So here's what I did: set up two wallets funded them with some tBTC ...
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Changes for bitcoin.conf file and details on the testnet network bitcoin-core

I have installed bitcoin core testnet and it is now synchronized with the network after 24 hours. My question is about bitcoin.conf file. I will tell you the procedure I used to install: I created the ...
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38 views

How to leave the Bitcoin testnet?

My BitcoinCore client says it's on the testnet. I've done nothing to configure this. How do I change it to do real Bitcoin transactions and wallets? Also, every time I shutdown my PC the client had to ...
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1answer
1k views

dumpwallet output documentation & explanation?

Where do I find complete documentation on what the console command "dumpwallet" output means? Sample of my testnet output: # Wallet dump created by Bitcoin v0.21.0 # * Created on 2021-01-...
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1answer
37 views

What is the maximum channel capacity allowed on the Bitcoin testnet?

Using Electrum desktop wallet connected to the testnet, when trying to open a channel with the amount exceeding 0.16777215 BTC I get the following: Could not open channel. Exception('Requested ...
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1answer
60 views

Error while broadcasting the raw bitcoin testnet transaction

I am trying to create a simple P2PKH raw bitcoin testnet transaction from the scratch. Here is the information about the transaction: hash of the UTXO consumed - ...
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1answer
378 views

Can you break down what data is encoded into a bech32 address?

Can you break down what data is encoded into a bech32 address? e.g. bc1qw508d6qejxtdg4y5r3zarvary0c5xw7kv8f3t4 How do bech32 addresses on testnet, regtest, signet compare?
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1answer
62 views

Why is the source code fee calculated higher than the current bitcoin fee amount?

In python bit (https://github.com/ofek/bit/), when sending a message, it is properly 80 bytes or less (https://developer.bitcoin.org/devguide/transactions.html) fee is If it is a 4-byte character ...
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3answers
852 views

Selling Test bitcoin

I have a random and maybe crazy question. Can I sell test coins? Someone recently told me that Advanced Market Terminal is buying them. It is strange to me Since they should hold no value.
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What is txid and scriptPubKey in bitcore UnspentOutput function and where can I get those data?

I am following this tutorial https://github.com/bitpay/bitcore/blob/master/packages/bitcore-lib/docs/unspentoutput.md and it is not clear what the txid, scriptPubKey and where to get those data var ...
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691 views

How to generate or add balance in my btc testnet address

I am trying to add btc testnet, I have read that these following sites offers testnet btc but upon checking their servers were down https://bcoin.io/ https://bitpay.com/insight/#/ALL/mainnet/home ...
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1answer
48 views

Tiny 1-block forks in blk.dat files

I just completed parsing the Testnet3 Bitcoin blockchain stored in the blk.dat files into a database. Since I was using multi-processing to parse several files at the same time, I didn't add the ...
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1answer
2k views

How can I get more than 1 BTC on testnet?

The only way I know of to get testnet coins is through faucets such as the following. https://testnet-faucet.com/btc-testnet/ https://testnet-faucet.mempool.co/ https://kuttler.eu/en/bitcoin/btc/...
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1answer
321 views

cpuminer: Running two nodes -The requested URL returned error: 500 Internal Server Error, json_rpc_call failed, retry after 30 seconds

I'm trying to mine new blocks using cpuminer. My blockchain network runs on localhost on the testnet network with two nodes. When I'm trying to mine the blocks I'm receiving the following error: * ...
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1answer
248 views

Will there be a testnet4? Or do we not need a testnet reset once we have Signet?

The last testnet reset was for the current testnet3 back in 2012 (not including segnet which was a testnet for SegWit before SegWit was activated on mainnet). Are we due another testnet reset? Or is ...
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1answer
457 views

How do I get set up on Signet?

I have heard about Signet here and here. How do I get set up on Signet?
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1answer
69 views

What can I expirement with BitcoinCore on my own?

I have a simple faculty assignment where I have to do some experiments with transactions or experiment with the Bitcoin protocol or maybe with wallet code. Work on that assignment shouldn't last more ...
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1answer
70 views

How do I start -testnet in -deprecatedrpc to test a script?

I hope all is well during our COVID-19 pandemic. My question: How do I start "bitcoind -testnet" in "-deprecatedrpc=signtransaction" mode? Do I simply start it the same way without ...
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1answer
59 views

Bitcoincore listrecievedbyaddress doesn’t work

I am trying to run bitcoin full node on testnet. I have downloaded ant started bitcoind with such config: testnet=1 regtest=0 server=1 listen=0 I'v generated new address ...
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1answer
307 views

Unable to sendcoins using bitgo express apis

Trying to access API URL: https://test.bitgo.com/api/v2/tbtc/wallet/walletid38u5348t9yj958jtv985j89g5/sendcoins But every time getting same response: { "error": "You have called a BitGo Express ...
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2answers
199 views

Creating a custom transactions

I am currently learning how to create raw transactions. I can already create standard using bitcoin core (0.19.1), but when I wanted to create with custom opcode like this: asm: OP_HASH160 ...
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2answers
143 views

how to use bitcoind "walletnotify" for unique transactions only

while using bitcoind "walletnotify" my curl command is getting 3 hits generating 3 unique transaction hashes but requirement is to execute only once for unique transactions. I heard about ...
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1answer
51 views

why is my p2sh raw transaction not being mined or erroring ERROR: 64: NON-MANDATORY-SCRIPT-VERIFY-FLAG (EXTRA ITEMS LEFT ON STACK AFTER EXECUTION?

I created this 2-of-2 multi-signature address for testnet following the instructions on the book Programming Bitcoin. I tried to spend the funds in this address following the standard forms (...
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1answer
137 views

Testnet addresses fail in explorers

I've generated a testnet address like this: const btc = require('bitcoinjs-lib'); const bip32 = require('bip32'); const bip39 = require('bip39'); var root = bip32.fromSeed( bip39....
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1answer
417 views

How can I withdraw my mbtc on my testnet 3 wallet?

Pls can you help me on how to exchange my mBtc on my testnet 3 wallet to my local currency and withdraw it? Pls tell me if this is possible..? I was paid to my testnet wallet and I want to withdraw ...
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1answer
547 views

Is it actually possible to install Bitcoin full node on a Raspberry Pi 3B+?

A Raspberry Pi 3B+ has only 1GB of ram and this official Bitcoin Core page shows that minimum requirement is 2GB ram and 200 GB storage with 100MB/s read and write speed. But I see a lot of articles ...
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1answer
151 views

How to send requests to a testnet faucet to collect coins at my address?

I am really new to Bitcoin and have just started reading about it. From what I understand testnet Bitcoin can only be requested every 12 hours or so and yields a very low quantity. I would like to ...
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89 views

Sent some testnet Bitcoin to Bitcoin Core wallet but balance is still zero

I got the testnet Bitcoin address with this command: bitcoin-cli -testnet getnewaddress And here is the Bitcoin address: 2NDtNjDbEiNiKDuAnwyKBmRPQ49NNpesdhE As you can see in blockchain there was a ...
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1answer
41 views

What is the dummy_address when creating an OP_RETURN in this example?

Here we see: mainnet = 0 if mainnet: dummy_address = "1111111111111111111114oLvT2" else: dummy_address = "mfWxJ45yp2SFn7UciZyNpvDKrzbhyfKrY8" What is this? No explanation is given. Can I ...
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1answer
45 views

I sent myself a test BitCoin, now what? I don't see it, how long do I wait?

I just created this, sending myself 0.01 BitCoin: https://tbtc.bitaps.com/b3e8e7dbe13c9939fc3157bef7725282d12594a0e8d14fa73493624ae394f314/mqRkjQjSCCVmsmBzsEQYhwCHEdz9dXRUwW I've waited for 5 ...
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1answer
131 views

Is there a way to delete a test wallet without stopping bitcoind?

For my unit tests, I'd like to be able to delete and recreate a wallet without having to stop bitcoind and manually deleting the wallet directory. When I try to delete such wallet directory without ...
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1answer
106 views

What is the simplest command I could use to test that my wallet unlocking process works properly?

I simply want to unit test that my lock/unlock process works well on an encrypted wallet. What would be the easiest command I could send (that doesn't involve sending coins) to actually validate if ...
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2answers
56 views

Bitcoind in test network doesn't display transactions

Hello i'm setting up the bitcoin-core daemon, i use version 160300 ( but it is same problem with newer version ). I have made config like this: testnet.conf server=1 listen=50 listenonion=0 testnet=...
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123 views

Bitcoin rpc testnet balance and transaction not visible

I'm using bitcoind-0.15.0.1 version & My Wallet Address is: muweVvHKnK1bE88pUsrpSAPuWry1V1AmHZ But whenever checking balance with following command: bitcoin-cli getreceivedbyaddress '...
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1answer
37 views

How did I get a Test net

I was downloading bitcoin for the first time and during the last 3 minutes while doing some other work on my computer, something about an interruption flashed and then it looked as if nothing had ever ...
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2answers
830 views

What are the key differences between regtest and the proposed signet?

What are the key differences between regtest and the proposed signet? One of the key differences is that using regtest is not ideal for public networks as anyone anywhere can just rewrite the ...

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