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.

2
votes
1answer
117 views

Why do testnet blocks have future timestamp?

I am playing experiments with testnet blockchain, and it seems like the best block is always set about 2 hours into the future. For example, now, the block has timestamp 90 minutes into the future. I ...
3
votes
1answer
664 views

Update from Bitcoin core 0.12 to 0.13 requires blockchain re-download?

Apparently, Bitcoin Core 0.13 will download part of the blockchain again, even though 0.12 already saved it on the disk. My debug.log shows the last block it downloaded with 0.12: 2016-08-15 09:07:...
3
votes
1answer
793 views

Does the bitcoin testnet3 network support Segwit and OP_CSV?

As far as I know, Segregated Witness and OP_CHECKSEQUENCEVERIFY are the last features needed to be able to fully implement a trustless bi-directional payment channel, from start to finish. (...
4
votes
2answers
1k views

Is there a Bitcoin testnet that is really small so you can quickly download the blockchain and test stuff?

Is there a Bitcoin testnet that is really small so you can quickly download the blockchain and test stuff?
3
votes
2answers
189 views

is there a way to run bitcoin-qt and point it to a local testnet?

I'm running a small testnet locally with this project: http://github.com/freewil/bitcoin-testnet-box but I'm having trouble pointing bitcoin-qt to the blockchain that I created locally myself, so I ...
6
votes
2answers
872 views

How to check if node is on TestNet or MainNet via `bitcoin-cli`?

Is there a way, by using bitcoin-cli using RPC querying, if the node I'm querying is running on MainNet or TestNet? Thanks
1
vote
3answers
155 views

Accessing Testnet [duplicate]

Can i access the testnet without downloading the blockchain? im developing a software to do a testnet (later it will be in mainnet) transaction with a custom message embedded into OP_RETURN. if the ...
1
vote
1answer
359 views

OP_RETURN custom message in testnet transaction

I would like to do a bitcoin transaction in testnet by embedding a custom message in the OP_RETURN. do i have to download the bitcoin core client with and the block chain to do that? or can i use a ...
3
votes
1answer
666 views

Send a transaction using bitcoinjs-lib to testnet in a box

I put together some code using bitcoinjs-lib which allows me to create a testnet transaction and send some bitcoins from one address to another. But I'm getting tired of waiting for 10 mins after ...
2
votes
1answer
170 views

Not receving Bitcoins to my testnet wallet

I am running the bitcoinj wallettemplate on testnet3. I have this address miAKWcmebJ7TYyZCYUx54djHsatVGdNZA8 , I tried out some websites which sends me testnet coins (Faucet). But I am not receiving ...
0
votes
2answers
604 views

Generate QR Code tesnet

I would like to generate a bitcoin paper testnet wallet. A paper wallet is a QR code of a private key and a QR code of a bitcoin testnet address, I assume it can be generate juste like this link does :...
1
vote
1answer
99 views

Height mismatch between bitcoin-qt and bitcoin explorers

I am running bitcoin-qt on the testnet. The count of the last block is 787794 which is way ahead of what I see on blockchain explorers such as https://test.webbtc.com/, which shows the last block as ...
1
vote
1answer
847 views

0 active connection to bitcoin network (testnet)

I am working with the testnet. I downloaded the bitcoin-core application on Linux and I am running the version Bitcoin Core version v0.12.1.0-g9779e1e (64-bit) I was able to download the bitcoin block,...
1
vote
1answer
167 views

test net block time wrong

I can see http://tbtc.blockr.io/ time of block are showing "right now". When I click "all blocks" the time is two hours ahead of "now". I don't think it's blockr time zone problem, because 1) when I ...
1
vote
1answer
510 views

Server requirements & optimal configuration for Testnet

My friend and I are interested in running some experiments using a blockchain and accordingly we're interested in setting up our own Testnet. We're a bit light on experience, i.e. we've never set up ...
2
votes
1answer
65 views

Test network completely removed from the real network?

I know of the testnet Bitcoin provides, but is there any framework or simulator of the Bitcoin network which I can use to test on my local machine? I would like to edit parts of the code and simulate ...
16
votes
2answers
402 views

How thoroughly has Segregated Witness been tested?

I've encountered claims that Segregated Witness was "not really tested" and is being "rushed". It is my understanding that SegWit had been running on Elements for more than half a year already, and ...
5
votes
1answer
2k views

Testnet: mandatory-script-verify-flag-failed when doing OP_RETURN

For some reason I keep getting error: {"code":-25,"message":"Missing inputs"} EDIT: Updating error now that the full testnet blockchain is downloaded "code":-26,"message":"16: mandatory-script-...
1
vote
1answer
716 views

How to install a private testnet?

I'm looking to make my own NxT testnet for developpement purpose but couldn't find a way to do it. I'm currently using the normal " testnet " but couldn't find the way to properly configure the nxt-...
0
votes
1answer
207 views

bitcoin testnet daemon stuck

I am running bitcoin testnet daemon for development, but lately I have trouble with starting the daemon. Blockchain is downloaded and it seems that everything runs fine till init message: ...
0
votes
1answer
68 views

Is there a way to force fail the transaction in testnet network

I would like to test my application with all the edge cases. Could you please tell me is there a way to force fail the transaction in the testnet blockchain so I can test if my application handles ...
0
votes
1answer
65 views

Why is this (testnet) transaction considered invalid?

96c42fd1a6d4a77eef677030483ce79fd3e70100000000ffffffff02b0040000000000001976a914817b776c02b9e0fe60163a170b0d72a194a463ef88ace05a0100000000001976a914817b776c02b9e0fe60163a170b0d72a194a463ef88ac00000000 ...
2
votes
0answers
84 views

Quantity of traffic on test network

I want to begin experimenting with bitcoin. I notice the estimated upload traffic for the real bitcoin network is around 200 GB per month. That's too much for an experiment. How much traffic per month ...
1
vote
1answer
193 views

Does a transaction with a lock time need more time to be confirmed?

I've made this transaction in the testnet: https://testnet.blockexplorer.com/tx/2f18c646a2b2ee8ee1f295bb5a0f5cc51c5e820a123a14b0c0e170f9777518bb It's a multisign tx with locktime. The locktime has ...
0
votes
1answer
232 views

What am I doing wrong with my BitcoinXT test net setup?

I installed bitcoind and bitcoin-cli, set the configuration file so that I am using test-net and requested funds from TP's TestNet Faucet. The funds never appeared in my account. I thought at first ...
3
votes
1answer
1k views

How to set up a private bitcoin network with mining on a single machine?

I created a testnet for mining using several ports in a single machine. However I see that the source codes [CAddrInfo, CAddr] are based on IP and not IP||port. Is there an easy change to make it do ...
5
votes
1answer
552 views

How peer discovery works after connecting to hardcoded nodes?

I am tinkering with the bitcoin source code and trying to understand the exact working of peer discovery mechanism in the testnet mode for which I have made the following changes: Disabled the DNS ...
2
votes
1answer
159 views

Bitcoin transactions reserve more coins than needed

I have a JavaWebApp wich uses bitcoinj 0.13.2 for sending bitcoins from a wallet to a particular address in a TimerTask. When the job starts, every minute I send 10000 satoshis to the address. The fee ...
1
vote
0answers
72 views

Reset bitcoin blockchain checkpoint to mine 0th block [duplicate]

I want to start a new block chain and mine the 0th block, but I guess the hardcoded checkpoint in chainparams.cpp won't allow that. I guess I need to reset the checkpoint hardcoded as follows before ...
1
vote
1answer
44 views

Am I paying Double fees?

On testnet I sent a transaction I believe this was for TBTC1.000 and a 0.0001 fee: i.e. inputs - outputs = 0.0001. When I try to claim the transaction I am only allowed to claim 1 - 0.001. If I ...
3
votes
1answer
530 views

Bitcoin testnet not connecting to hardcoded ip addresses

I am trying to force bitcoind running in testnet mode to connect to my own defined set of ip addresses(basically 127.0.0.1:diffPorts). For this I have disabled dnsseed and starting with a fresh ...
3
votes
1answer
3k views

Receive money in regtest mode

I am working on a app in which my project communicates with the bitcoin server to get the details of a transaction with transaction id as the parameter. I have bitcoind, bitcoin-cli and bitcoin-qt ...
0
votes
0answers
199 views

how to get confirmed balance for bitcoin testnet server? [duplicate]

I can't get confirmed BTC from https://tpfaucet.appspot.com/ server. Tried many address and can't get balance with confirmation. for that reason my testnet server balance is always 0.0 bitcoin....
1
vote
0answers
421 views

what is the bitcoin.conf for testnet3?

I need to use bitcoin testnet3 server for testing via php. bitcoin.conf rpcuser=bitcoinrpc rpcpassword=random string testnet=1 create JsonRpc object with easy bitcoin: $...
1
vote
1answer
641 views

testnet server won't get any btc from TP's TestNet Faucet. what is the reason?

I have generate bitcoin address from testnet server. but I can't get any btc in those address. i tried many times and I failed. can anyone explain me that is the reason? whay i can't get btc on ...
1
vote
1answer
736 views

Trying to send Bitcoins from testnet to my regtest node

I send bitcoin regtest server BTC to other bitcoin address of same server. I sent 5 BTC but it shows 50 BTC of that account's associated address. It received 5 BTC. What's the problem with this ...
1
vote
1answer
1k views

how to use bitcoind jsonrpc for regtest or testnet server in php?

i used bitcoind with jsonrpc service. but i added regtest=1 in bitcoin.conf at .bitcoin folder. used: bitcoin-cli -regtest generate 101 bitcoin-cli -regtest getbalance 50.00000000 but ...
0
votes
0answers
81 views

How to send an invalid transaction for testing purposes?

How could I send an invalid transaction—for testing purposes, such as with testnet or regtest? For example, I would like to to try to double-spend, spend non existent coins, etc.
1
vote
2answers
222 views

Where can I access a NXT public testnet node?

Was wondering where can I access a public NXT testnet node?
4
votes
1answer
1k views

Running another instance of bitcoin-qt dedicated to testnet/regtest?

Is it possible to run another instance of bitcoin-qt dedicated to testnet/regtest? If so, how do i do this? My question is similar to "Running two bitcoind instances for different nets," but I want ...
5
votes
1answer
863 views

Problem with sendrawtransaction

When I use bitcoin-cli sendrawtransaction and only get -25 errors. I have tried to push the transaction using different blockchain explorer sites, but that didn't work. I have tried: ...
3
votes
2answers
70 views

Why can't the block size upgrade be trialed on testnet with an organised “stress test”

A stress test was run on mainnet to see the effect of exponential demand in Tx volume. Why can't a testnet "stress test" be organised to look at the implications of the 20Mb block size (and other ...
1
vote
1answer
431 views

Why the same confirmed transaction in the Testnet has different block hash and other fields?

Chain.com http://explorer.chain.com/transactions/a4bfb8e21ae3d6232183dfb8ef5fcee8c9b8f223c2d25738e24765a75abd009b Chain.so https://chain.so/tx/BTCTEST/...
0
votes
1answer
120 views

Why was this transaction allowed on testnet?

I'm a bit confused on how testing stuff for Bitcoin on the testnet currently works. For example, bitcoin core 0.10 enables only 40 bytes in OP_RETURN, but I'm not sure if 0.10 is the latest version ...
2
votes
3answers
878 views

Bitcore Testnet API

Does anyone know if Bitcore offer a testnet API to play around with? I'm implementing an Escrow system using the API and Node.js and don't particularly want to use real Bitcoins. Thanks.
5
votes
1answer
998 views

Cannot create a transaction

I am trying to create a transaction on the bitcoin testnet, using bitcore: Error Message : SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data Here is my code: var ...
1
vote
1answer
102 views

Armory 0.93 on Testnet: consistent unconfirmed Txs sent from connected Bitcoin-cli (log attached)

Running Armory (0.93.0.82) on Win7 x64 with the following flags: "C:\Program Files (x86)\Armory\ArmoryQt.exe" --testnet --datadir=d:\data\armory\testnet3 --satoshi-datadir="d:\data\bitcoincore" --...
2
votes
1answer
319 views

Why am I unable to post two transactions (the second from the change address of the first) in the same block?

I'm attempting to make a transaction on the testnet with an OP_RETURN and a change address in it, and then make a second OP_RETURN transaction from first transaction's change address in the same ...
6
votes
1answer
421 views

Working example of raw transaction utilising Boolean (OP_IF, OP_ENDIF) scripting REQUIRED

I recently posted this Testnet TX (TxID 2d0daa01da8294a54178f8111eb2a02010c425fd15957d8baee8717edcfbe105) which successfully spends an output (TxID ...
0
votes
1answer
656 views

Redeeming OP_SHA256 hash OP_EQUAL (Testnet) Tx

I created the following non-standard Tx on the Testnet3 network: 6b52c981e6814072db77cb755b2633cd126b4ca21501d18ab994531e17a4a813 { hash: "...