Bitcoin Forum
May 04, 2024, 12:17:24 PM *
News: Latest Bitcoin Core release: 27.0 [Torrent]
 
   Home   Help Search Login Register More  
Pages: [1]
  Print  
Author Topic: Some testnet questions  (Read 268 times)
alia (OP)
Jr. Member
*
Offline Offline

Activity: 56
Merit: 115

Lowest EVER interest lending! (Use escrow always)


View Profile
February 18, 2018, 11:33:05 PM
Merited by Foxpup (1), ABCbits (1)
 #1

I've always been curious - who creates testnet coins? If they have no value, I'm sure there would be no incentive to mine them - so where exactly do they come from? Who holds them, and why? What is the testnet supply cap? I'm sure that if thousands of shitcoins have value, then a BTC testnet coin would also eventually have value, so why doesn't the testnet coin immediately gain some form of value (since it is scarce and acts exactly like BTC)?

Lowest interest lending in bitcointalk history. https://bitcointalk.org/index.php?topic=2846750.0
There are several different types of Bitcoin clients. The most secure are full nodes like Bitcoin Core, but full nodes are more resource-heavy, and they must do a lengthy initial syncing process. As a result, lightweight clients with somewhat less security are commonly used.
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction.
cannycassiopeia
Full Member
***
Offline Offline

Activity: 266
Merit: 105


View Profile
February 19, 2018, 01:42:09 AM
Merited by ABCbits (1)
 #2

BTC testnet coins are for the purpose of....testing. It is because it's dangerous to push untested code to the live network. One small bug could produce dao-like disaster, wrecking the billion-dollar ecosystem. Testnet allow developers to experiment in safety. Every bitcoin client or wallet can be used for testnet.

There have been 3 versions of testnet. The current Testnet3 was introduced with the 0.7 release. Start your typical bitcoin or bitcoind (daemon) with the -testnet flag to use the testnet or you can put testnet=1 in the bitcoin.conf file.

I'll be active when the bull market comes back
alia (OP)
Jr. Member
*
Offline Offline

Activity: 56
Merit: 115

Lowest EVER interest lending! (Use escrow always)


View Profile
February 19, 2018, 01:43:16 AM
 #3

BTC testnet coins are for the purpose of....testing. It is because it's dangerous to push untested code to the live network. One small bug could produce dao-like disaster, wrecking the billion-dollar ecosystem. Testnet allow developers to experiment in safety. Every bitcoin client or wallet can be used for testnet.

Yes, I am well aware of all of that. You still didn't answer a single one of my questions, though

Lowest interest lending in bitcointalk history. https://bitcointalk.org/index.php?topic=2846750.0
cannycassiopeia
Full Member
***
Offline Offline

Activity: 266
Merit: 105


View Profile
February 19, 2018, 01:47:52 AM
 #4

BTC testnet coins are for the purpose of....testing. It is because it's dangerous to push untested code to the live network. One small bug could produce dao-like disaster, wrecking the billion-dollar ecosystem. Testnet allow developers to experiment in safety. Every bitcoin client or wallet can be used for testnet.

Yes, I am well aware of all of that. You still didn't answer a single one of my questions, though

https://testnet.blockexplorer.com/

I'll be active when the bull market comes back
alia (OP)
Jr. Member
*
Offline Offline

Activity: 56
Merit: 115

Lowest EVER interest lending! (Use escrow always)


View Profile
February 19, 2018, 01:51:14 AM
 #5

BTC testnet coins are for the purpose of....testing. It is because it's dangerous to push untested code to the live network. One small bug could produce dao-like disaster, wrecking the billion-dollar ecosystem. Testnet allow developers to experiment in safety. Every bitcoin client or wallet can be used for testnet.

Yes, I am well aware of all of that. You still didn't answer a single one of my questions, though

https://testnet.blockexplorer.com/

That still doesn't answer my question... my question mainly is, why does a scarce currency like the BTC testnet coin not have value at all? And who creates them, distributes them, mines them (since they have no value), etc etc. Please don't post here if you can't answer my questions.

Lowest interest lending in bitcointalk history. https://bitcointalk.org/index.php?topic=2846750.0
juvo_3
Newbie
*
Offline Offline

Activity: 28
Merit: 21


View Profile
February 19, 2018, 01:51:50 AM
 #6

BTC testnet coins are for the purpose of....testing. It is because it's dangerous to push untested code to the live network. One small bug could produce dao-like disaster, wrecking the billion-dollar ecosystem. Testnet allow developers to experiment in safety. Every bitcoin client or wallet can be used for testnet.

Yes, I am well aware of all of that. You still didn't answer a single one of my questions, though

I think what is trying to be expressed here is that testnets are highly susceptible to the developers changing the code due to errors that were not foreseen. In programming this happens alot. So holding a testnet coin or mining on a testnet for the purpose of profit doesnt make much sense.

people who run testnets do so to test their code without incurring the risk of valuable mainnet loosing coins or competing in the mainnet which requires alot of computational power. A software engineer would run a testnet with some isolated ASICS, therefore the mining difficulty would be very low and they can mine the coins of that testnet easily to test features of their code. If their code is a mess they can discard these mined tokens which are worthless anyway Smiley



alia (OP)
Jr. Member
*
Offline Offline

Activity: 56
Merit: 115

Lowest EVER interest lending! (Use escrow always)


View Profile
February 19, 2018, 01:54:13 AM
 #7

BTC testnet coins are for the purpose of....testing. It is because it's dangerous to push untested code to the live network. One small bug could produce dao-like disaster, wrecking the billion-dollar ecosystem. Testnet allow developers to experiment in safety. Every bitcoin client or wallet can be used for testnet.

Yes, I am well aware of all of that. You still didn't answer a single one of my questions, though

I think what is trying to be expressed here is that testnets are highly susceptible to the developers changing the code due to errors that were not foreseen. In programming this happens alot. So holding a testnet coin or mining on a testnet for the purpose of profit doesnt make much sense.

people who run testnets do so to test their code without incurring the risk of valuable mainnet loosing coins or competing in the mainnet which requires alot of computational power. A software engineer would run a testnet with some isolated ASICS, therefore the mining difficulty would be very low and they can mine the coins of that testnet easily to test features of their code. If their code is a mess they can discard these mined tokens which are worthless anyway Smiley





Wouldn't this mean that testnet coins have a very very low, albeit non-zero value?

Lowest interest lending in bitcointalk history. https://bitcointalk.org/index.php?topic=2846750.0
cannycassiopeia
Full Member
***
Offline Offline

Activity: 266
Merit: 105


View Profile
February 19, 2018, 01:59:00 AM
Merited by bustedsynx (11), ABCbits (4)
 #8

Let me dumb it down.

who creates testnet coins?
You. Your wallet can mine it. Anyone who cares to keep the test environment alive.

If they have no value, I'm sure there would be no incentive to mine them
The incentive is the safe testing environment.

- so where exactly do they come from? Who holds them, and why?
From mining. Anyone can hold. You can get 50+btc testnet coins if you like.

What is the testnet supply cap?
Same as BTC

why doesn't the testnet coin immediately gain some form of value (since it is scarce and acts exactly like BTC)?
Because it's only for testing. No one will accept something that can be reset, recoded or rewritten at any moment.

I'll be active when the bull market comes back
juvo_3
Newbie
*
Offline Offline

Activity: 28
Merit: 21


View Profile
February 19, 2018, 02:01:10 AM
 #9

BTC testnet coins are for the purpose of....testing. It is because it's dangerous to push untested code to the live network. One small bug could produce dao-like disaster, wrecking the billion-dollar ecosystem. Testnet allow developers to experiment in safety. Every bitcoin client or wallet can be used for testnet.

Yes, I am well aware of all of that. You still didn't answer a single one of my questions, though

I think what is trying to be expressed here is that testnets are highly susceptible to the developers changing the code due to errors that were not foreseen. In programming this happens alot. So holding a testnet coin or mining on a testnet for the purpose of profit doesnt make much sense.

people who run testnets do so to test their code without incurring the risk of valuable mainnet loosing coins or competing in the mainnet which requires alot of computational power. A software engineer would run a testnet with some isolated ASICS, therefore the mining difficulty would be very low and they can mine the coins of that testnet easily to test features of their code. If their code is a mess they can discard these mined tokens which are worthless anyway Smiley





Wouldn't this mean that testnet coins have a very very low, albeit non-zero value?

"value" is a term that is used to describe the utility of a resource. In a testnet, the coins mined are a resource. the utility of this resource comes from the ability for the developer to test their code. so they have value to the people running tests. But this utility is not tangible to an open market like a mainnet coin.
alia (OP)
Jr. Member
*
Offline Offline

Activity: 56
Merit: 115

Lowest EVER interest lending! (Use escrow always)


View Profile
February 19, 2018, 02:02:06 AM
 #10

Let me dumb it down.

who creates testnet coins?
You. Your wallet can mine it. Anyone who cares to keep the test environment alive.

If they have no value, I'm sure there would be no incentive to mine them
The incentive is the safe testing environment.

- so where exactly do they come from? Who holds them, and why?
From mining. Anyone can hold. You can get 50+btc testnet coins if you like.

What is the testnet supply cap?
Same as BTC

why doesn't the testnet coin immediately gain some form of value (since it is scarce and acts exactly like BTC)?
Because it's only for testing. No one will accept something that can be reset, recoded or rewritten at any moment.


Thanks for the answers! That was helpful. I'd imagine that testnet coins would still have a value of a few cents, right?

Lowest interest lending in bitcointalk history. https://bitcointalk.org/index.php?topic=2846750.0
cannycassiopeia
Full Member
***
Offline Offline

Activity: 266
Merit: 105


View Profile
February 19, 2018, 02:05:44 AM
 #11

Let me dumb it down.

who creates testnet coins?
You. Your wallet can mine it. Anyone who cares to keep the test environment alive.

If they have no value, I'm sure there would be no incentive to mine them
The incentive is the safe testing environment.

- so where exactly do they come from? Who holds them, and why?
From mining. Anyone can hold. You can get 50+btc testnet coins if you like.

What is the testnet supply cap?
Same as BTC

why doesn't the testnet coin immediately gain some form of value (since it is scarce and acts exactly like BTC)?
Because it's only for testing. No one will accept something that can be reset, recoded or rewritten at any moment.


Thanks for the answers! That was helpful. I'd imagine that testnet coins would still have a value of a few cents, right?

I don't know. You can collect 5 - 50 testnet BTC coins from faucets. So I don't think you can sell something that is freely given.

I'll be active when the bull market comes back
alia (OP)
Jr. Member
*
Offline Offline

Activity: 56
Merit: 115

Lowest EVER interest lending! (Use escrow always)


View Profile
February 19, 2018, 02:08:20 AM
 #12

Let me dumb it down.

who creates testnet coins?
You. Your wallet can mine it. Anyone who cares to keep the test environment alive.

If they have no value, I'm sure there would be no incentive to mine them
The incentive is the safe testing environment.

- so where exactly do they come from? Who holds them, and why?
From mining. Anyone can hold. You can get 50+btc testnet coins if you like.

What is the testnet supply cap?
Same as BTC

why doesn't the testnet coin immediately gain some form of value (since it is scarce and acts exactly like BTC)?
Because it's only for testing. No one will accept something that can be reset, recoded or rewritten at any moment.


Thanks for the answers! That was helpful. I'd imagine that testnet coins would still have a value of a few cents, right?

I don't know. You can collect 5 - 50 testnet BTC coins from faucets. So I don't think you can sell something that is freely given.

Odd because I've occasionally seen people buying 1000 testnet coins for 0.001 BTC, and similar deals. Anyway, thank you for your help, I think I get it now.

Lowest interest lending in bitcointalk history. https://bitcointalk.org/index.php?topic=2846750.0
victorkimba17
Jr. Member
*
Offline Offline

Activity: 113
Merit: 5


View Profile
February 19, 2018, 02:25:38 AM
 #13

When i run a bitcoin core node in testnet, how do i mine bitcoin in testnet? What is the settings in bitcoin.conf ? 

The setgenerate is not working, see below:
./bitcoin-cli -testnet setgenerate true
achow101
Moderator
Legendary
*
expert
Offline Offline

Activity: 3388
Merit: 6581


Just writing some code


View Profile WWW
February 19, 2018, 03:15:36 AM
Merited by ABCbits (3), Foxpup (2), LoyceV (1), HeRetiK (1)
 #14

Thanks for the answers! That was helpful. I'd imagine that testnet coins would still have a value of a few cents, right?
No, because testnet coins are freely given away and in large quantities. They are not traded anywhere. Some scammers may claim that testnet coins have value and try to sell testnet coins, but they are easily obtainable for free.

If testnet coins were to have a value, then the testnet would be reset and started from scratch. This has happened twice already; the original testnet was discarded and replaced with testnet2. When testnet2 was being traded for money, it was discarded and replaced with testnet3. Testnet3 is the current iteration of testnet, and it can be discarded and replaced with a new testnet.

I've always been curious - who creates testnet coins?
Miners do. People mine on testnet.

If they have no value, I'm sure there would be no incentive to mine them - so where exactly do they come from?
The incentive is a safe testing environment where people can do crazy things without risking any money. Some of those things may involve mining, so people will mine on testnet. Others may decide to mine testnet coins to use for themselves, so they mine on testnet. And others may use testnet frequency and just need it to not be dead so they can test things on it, so they mine it. The difficulty of testnet is so low that it can usually be CPU mined. At other times, it can be gamed into CPU mining difficulty levels since testnet has a difficulty reset mechanism.

Who holds them, and why?
Developers and people who want to test things without risking money.

What is the testnet supply cap?
Sam as Bitcoin's, ~21 million

I'm sure that if thousands of shitcoins have value, then a BTC testnet coin would also eventually have value, so why doesn't the testnet coin immediately gain some form of value (since it is scarce and acts exactly like BTC)?
Because if it were to have value, then testnet loses its value as a testing ground (place to test with coins that can be gotten for free). Additionally, the testnet can be reset and has been reset in the past.

When i run a bitcoin core node in testnet, how do i mine bitcoin in testnet? What is the settings in bitcoin.conf ? 

The setgenerate is not working, see below:
./bitcoin-cli -testnet setgenerate true
How do you know that it isn't working? setgenerate doesn't give any visible output. And testnet still has a difficulty, so it takes time to mine blocks.

alia (OP)
Jr. Member
*
Offline Offline

Activity: 56
Merit: 115

Lowest EVER interest lending! (Use escrow always)


View Profile
February 19, 2018, 03:24:19 AM
 #15

Thanks for the answers! That was helpful. I'd imagine that testnet coins would still have a value of a few cents, right?
No, because testnet coins are freely given away and in large quantities. They are not traded anywhere. Some scammers may claim that testnet coins have value and try to sell testnet coins, but they are easily obtainable for free.

If testnet coins were to have a value, then the testnet would be reset and started from scratch. This has happened twice already; the original testnet was discarded and replaced with testnet2. When testnet2 was being traded for money, it was discarded and replaced with testnet3. Testnet3 is the current iteration of testnet, and it can be discarded and replaced with a new testnet.

I've always been curious - who creates testnet coins?
Miners do. People mine on testnet.

If they have no value, I'm sure there would be no incentive to mine them - so where exactly do they come from?
The incentive is a safe testing environment where people can do crazy things without risking any money. Some of those things may involve mining, so people will mine on testnet. Others may decide to mine testnet coins to use for themselves, so they mine on testnet. And others may use testnet frequency and just need it to not be dead so they can test things on it, so they mine it. The difficulty of testnet is so low that it can usually be CPU mined. At other times, it can be gamed into CPU mining difficulty levels since testnet has a difficulty reset mechanism.

Who holds them, and why?
Developers and people who want to test things without risking money.

What is the testnet supply cap?
Sam as Bitcoin's, ~21 million

I'm sure that if thousands of shitcoins have value, then a BTC testnet coin would also eventually have value, so why doesn't the testnet coin immediately gain some form of value (since it is scarce and acts exactly like BTC)?
Because if it were to have value, then testnet loses its value as a testing ground (place to test with coins that can be gotten for free). Additionally, the testnet can be reset and has been reset in the past.

When i run a bitcoin core node in testnet, how do i mine bitcoin in testnet? What is the settings in bitcoin.conf ? 

The setgenerate is not working, see below:
./bitcoin-cli -testnet setgenerate true
How do you know that it isn't working? setgenerate doesn't give any visible output. And testnet still has a difficulty, so it takes time to mine blocks.

Thank you, that really clears things up. Especially the part about testnets being discarded in the past.

Lowest interest lending in bitcointalk history. https://bitcointalk.org/index.php?topic=2846750.0
johniadeluca
Member
**
Offline Offline

Activity: 224
Merit: 11


View Profile
February 19, 2018, 03:26:56 AM
 #16

Well, they're utilized solely for testing. They help give development options and allow for prototyping Smiley
nullius
Copper Member
Hero Member
*****
Offline Offline

Activity: 630
Merit: 2610


If you don’t do PGP, you don’t do crypto!


View Profile WWW
February 19, 2018, 06:29:49 AM
Merited by ABCbits (1), alia (1)
 #17

(I began slowly writing this earlier.  Part is made redundant by achow101’s excellent response; part is not.)

If they have no value, I'm sure there would be no incentive

In addition to what others have said:  Believe it or not, some people do things for ideological reasons.  There are Core developers and others who have devoted huge chunks of their lives to Bitcoin, and have much less to show for it in material terms than they properly deserve.  There are people on this forum who make excellent quality posts, and receive in return via sig ads only a minute fraction of what they’d make if they were to spend the same time on commercial ventures—or receive nothing at all; some of the best posters don’t have sig ads.  (Here in this thread:  What do you think achow101’s time as spent here would be worth on the commercial market?)  And for my part, though I haven’t (yet) done much of anything for Bitcoin, I myself am much less rich than you’d guess due to my innate propensity to act for principles instead of money.

Bitcoin would not exist without people who believe in Bitcoin.  Its ancestry rose from the cypherpunk dreams of people who are ideologically driven.  It was conceived and borne forth into this world by an anonymous individual who acted only for principles, and to this day has (for whatever reason) not touched coins now worth billions of dollars.  It has been carried forward, improved, and maintained to this day by people who are primarily driven by ideology.  Some of them also make good money—some don’t, but do it anyway.

If you want to see what a “coin” looks like when its development and maintenance is driven solely by material “incentives”, look to Btrash.  That’s a good example—except that it’s a cheap knockoff which would never have existed at all, if it hadn’t been able to fork off the labours of love by people who believe in Bitcoin.

I've always been curious - who creates testnet coins?

This popular testnet faucet (one of many) has a current available supply of 29436.93 testnet coins.  You get coins from the faucet, you use them to test software, and then you send leftover coins back to the faucet’s return address.

Testnet coins can be destroyed at any time.  They can be destroyed by accident, via a software bug—or the whole testnet can be destroyed intentionally.  This was the reason why we’re on Testnet3, as cannycassiopeia said.  Testnet2 was intentionally destroyed because some idiots were using testnet coins as money.

Testnet coins are mined by volunteers.  It has lower difficulty than mainnet, and a little quirk which drops the difficulty to minimum for the next block if no block is found for too long.

why doesn't the testnet coin immediately gain some form of value (since it is scarce and acts exactly like BTC)?

No, it does not act “exactly like BTC”.  The whole network can be destoyed at any time, by accident or intention.  Also, it is unlike BTC insofar as people who use BTC as money are smart, and people who use testnet coins as money are imbecilic scammers.

I'd imagine that testnet coins would still have a value of a few cents, right?

No.  The monetary value of testnet coins is zero.

I don't know. You can collect 5 - 50 testnet BTC coins from faucets. So I don't think you can sell something that is freely given.

Well, people can.  Developers can also respond to such a moronic thing by trashing the entire testnet anytime.  Then, we’d have Testnet4.

Odd because I've occasionally seen people buying 1000 testnet coins for 0.001 BTC, and similar deals. Anyway, thank you for your help, I think I get it now.

That is a scam.  Call it out as such.



Bitcoin Core also has a regtest (regression test) mode, in which blocks can be mined instantly.  This is not a network; it is for testing and debugging code on your local machine, with a local instant-mine blockchain.  Install Core, and have fun with godlike powers creating as many disposable blockchains as you want!  Just don’t try selling any coins from them.  That would also be a scam.

Pages: [1]
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!