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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15 views

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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3answers
53 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
26 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
76 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
26 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
129 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
110 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
51 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
50 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
44 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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27 views

Fatal LevelDB error: IO error

I get that error in my testnet node Fatal LevelDB error: IO error: /home/bitcoin/.bitcoin/testnet3/indexes/txindex/021208.ldb: Bad message I tried with reindex-chainstate but I get the same error.
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1answer
115 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
84 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
49 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
38 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
70 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
104 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
164 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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61 views

Bitcoin testnet connection with node.js Api bitcoind v0.18.0

I can connect mainnet but can't testnet. I use bitcoin-core npm package. my client configuration: var client = new Client({ network:'testnet', host:'x.x.x.x', port:'18332', wallet: 'x.dat', username:...
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1answer
104 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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121 views

“Cannot deserialize” when I use “https://testnet.blockchain.info/unspent?active=” to get my UTXO on testnet

When I Use "https://testnet.blockchain.info/unspent?active=" to get my UTXO on testnet I get this response: Cannot deserialize instance of com.blockchain.haskoindata.blockchaindomain....
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0answers
43 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
24 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
39 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
56 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
61 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
43 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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59 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
29 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
373 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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0answers
26 views

How to use Bitcoin Testnet2 [duplicate]

I am looking to mine bitcoins with ease. But, first, I want to know how can I access an earlier testnet (testnet2). I have future plans to do this. I need to know how to open it up on the command line ...
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41 views

Can I use an earlier version of testnet?

I am looking to mine bitcoins with ease. But, first, I want to know how can I access an earlier testnet (testnet2). I have future plans to do this. I need to know how to open it up on the command line ...
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1answer
196 views

How do I broadcast an OP_RETURN transaction using bitcoin cli

I am using Bitcoin Testnet's command line (and GUI). I am curious how, using my own computer and equipment (I already used a faucet) I could send a transaction easily. I tried https://github.com/...
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1answer
48 views

c-lightning - Unknown Peer

I'm trying to create a channel using c-lighting (testnet), but I keep getting an Unknown Peer error message. I used cli/lightning-cli connect which seemed to work fine. I used cli/lightning-cli ...
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1answer
92 views

ScriptSig does not validate with seemingly valid signature

I am trying to build raw transactions from scratch to improve my understanding. For comparison I am using the hexoutput from https://coinb.in/ as I can choose Testnet on there. I am trying to ...
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0answers
45 views

What are the Advantages of Mainnet over Testnet?

In recent days most of the ICO's starting with test net then developing their own block with mainnet. I don't know why they are doing this. What are the reasons behind this starting with testnet and ...
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1answer
30 views

These testnet outputs are not making sense to me

Today I took some time to mess around with the bit Python library, which I find pretty easy to use. I have been wanting to do some Bitcoin programming for a while, so I decided to create a simple web ...
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1answer
38 views

looking for faucet API so i could use it for tests - Automated faucet

i would like to make some tests on test net, the issue is every time i have insufficient fund in my wallet i need to find a faucet and manually add funds. i would like to create an automatic faucet ...
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1answer
114 views

System requirements for running a Bitcoin Core node on testnet

What are the minimum systems requirements for running a Bitcoin Core full node on testnet?
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1answer
40 views

Lightning Network on testnet - listchannels and listnodes returning empty values

I have setup a lightning node on testnet using c-lightning. The lightning-cli getinfo command output: { "id" : "0315a5746114ab9f3e8f0a3f2f73153ef1e4a8fb58daa54fa97c9603dfab989a30", "alias" : "...
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1answer
160 views

Bitcoin Testnet API that allows transaction lookup and submission of raw transactions

I'm looking for a well developed, maintained and stable API allowing to access bitcoin testnet. Something like Infura for Ethereum. Googling gives many results, but can somebody point me out what is ...
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2answers
1k views

Where can I get bigger amount of test BTC?

We are conducting some testing with the end users of our application and I need a bigger amount of test BTC for it. Using faucets, I can get 0.1 or 0.01 per request with captcha, but I need something ...
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0answers
185 views

Enable dustRelayFee behavior on testnet to get error code 64: dust

Crafting and sending an utxo of 1 satoshi does works and get mined on testnet without error. However on mainnet the error code 64: dust arise. I understand the basic idea that you are not able to ...
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0answers
392 views

Connection Refused when running bitcoind in a non-root user and trying to make RPC calls

I'm new to Bitcoin development and I'm currently having difficulties trying to make RPC calls to a Bitcoin-Core daemon running in a SSH server. I suppose that the problem is with Firewall or closed ...
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1answer
138 views

broadcasting error for raw bitcoin transaction testnet

I am trying to create a raw transaction and send it to the testnet. I am using testnet keys and here is the simplified readable output from my script: decoded private key: ...
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1answer
42 views

Child Pays for Parent transactions get stuck on testnet

I'm building a service prototype by reusing Electrum code and generated 4 consequent transactions which are CPFP type on the testnet. They are staying unconfirmed for several hours but test ...
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0answers
209 views

bitcoind localhost port 18332: Connection refused Ubuntu 18

Trying to connect to testnet using curl from localhost on ubuntu server. Tried lots of combinations of bitcoin.conf and ports. Here's my config: server=1 daemon=1 testnet=1 rpcuser=user rpcpassword=...
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1answer
87 views

Could a transaction hex on testnet theoretically be valid on mainnet?

For all practical intents and purposes it seems a testnet tx hex could never be valid on mainnet because of the prev tx hex present for all inputs used in the tx. However, let's say that by some ...
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1answer
336 views

How to test if a transaction is standard without spending real money?

The problem with Testnet is all types of transactions are allowed, so how can I know if a transaction would be rejected on mainet ?
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1answer
421 views

How to setup a testnet full node on Windows 10?

I'm trying to implement an SPV and I'd like to test it on a testnet full node but can't really understand how to do it from what I've found.

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