Hi,

I've answered this question in your thread: https://bitcointalk.org/index.php?topic=5223939.msg53790021#msg53790021

But just in case somebody else has the same question: tBTC is without value, so i'm not willing to sell any tBTC. However, if you need a large amount of tBTC, i'm certainly willing to lend tBTC to anybody who is in need, however, i'd need some actual collateral for such a loan, since i don't want people to get tBTC and never return it...

I have no idear to be honest... Like i said, it's been a long time since i mined on the testnet. tBTC is without actual value, i guess the equivalent of $50 in BTC, LTC, ETH,... would allow me to mine 10 tBTC in case you'd run away?

I have no idear if this is to much or to little, it's just an incentive for you to give the tBTC back once your tests are finished

It's only collateral by the way (not a sale), if you give the tBTC back within a month, you'll get everything back (minus transaction fees offcourse).I would also be OK if you chose some other trusted member of bitcointalk to hold the collateral, i really don't mind as long as i trust the person holding the funds.

I used to mine on the testnet a long time ago, and have 100+ tBTC in my testnet wallet. I use this tBTC to fund my own faucet (https://tbtc.mocacinno.com). I could potentially LEND you 10 tBTC for a while (no intrest), but i would take some collateral which you could get back after you return the tBTC.
I'm not interested in selling the tBTC, since i use it to fund my own faucet, but i don't really need the funds for at least a couple of months (depending on wether my faucet gains popularity or not).

So my terms:

• find a trusted FORUM escrow, or, if you trust me: give some decent collateral directly to me (it should be enough to rent sufficient hashrate to mine 10 tBTC + something for my efforts).
• After the collateral is secured, i'll transfer 10 tBTC
• Within 1 month, you return the 10 tBTC to me, after the returning transaction is confirmed you get your collateral back
• You pay all fees (escrow, tx fees,...)

If you agree, please accept this deal on this forum (not in PM). I'll be online for the next 2 hours.

One little bit of extra information about the use of ssl on bitcointalk.
As you can probably see, bitcointalk uses cloudflare's nameservers, cloudflare's proxy and cloudflare's SSL certificates.
This means that anything you send to bitcointalk is encrypted using cloudflare's keys, they decrypt the packages and re-encrypt them when they are sent to the actual servers hosting bitcointalk. Cloudflare can actually see what you are sending to bitcointalk, even if you feel protected by the padlock symbol in the address tab.

I'm not a big fan of running executables from somebody i don't know on my work pc (the only pc i "own" that uses windows as an OS).
Will you be releasing the sourcecode for peer review?

Your average daily income:
 (((((Hashrate (hashes/sec) * average block reward * 600 * 65535) / 2^48) / Difficulty) * 6 * 24)

Your hashrate: 1000000000
Average block reward: 12.66584503 BTC (including fees)
Difficulty: 15466098935555

Sooooo...
 (((((1000000000 * 12.66584503 * 600 * 65535) / 2^48) / 15466098935555) * 6 * 24) = 1.6 satoshi's per day...

On average, you'll hit a block every 771.951.219 days. That's about once every 2.114.934  (two million) years. So, your odds of "winning" ~$125.000 is about 1 in 771.000.000 (each day). The odds of winning the lottery seem to be about 1 in 300.000.000 (source: https://www.thebalance.com/what-are-the-odds-of-winning-the-lottery-3306232)

If your machine draws ~300 watts of power, and you pay 30 cents/kwh, 1 days of mining will cost you ~$2, it seems a powerball lottery ticket costs ~$2 (source: google), so: it's >2 times more likely to win the powerball lottery than it is to hit a BTC block for you (if you invest in powerball tickets instead of energy).

I must say i'm a complete noob when it comes to gambling, i have no idear what's special about powerball, but it seems a winning ticket is worth multiple millions, while a winning block is only worth ~$125.000, so investment-wise it would be better to buy powerball lottery tickets than it is to mine... Not only are the odds 2 times higher, the potential profit is also astronomically bigger.

1 - mocacinno

thanks 

That's the second time in 3 posts that i see somebody mentioning a wallet callet "true wallet"? I've been around for a long time, but i can honestly say i've never heared about this wallet... Can't find it using google either... Are you shilling for this wallet, the owner, payed by the owner,... or can you honestly say you've used this (unknown?) wallet and you would vouch for it?

A trezor one sets you back €59
A trezor model T sets you back €180
A ledger Nano S costs €59
A ledger Nano X costs €119, and at the moment you get a free Nano S when you buy a Nano X
A satochip costs €25 (but since i don't own one, i can't endorse it)

I don't get why anybody holding upwards of €500 in BTC, altcoins or ERC20 tokens (combined) would ever use the argument a hardware wallet is to expensive... Wouldn't it be more expensive if you lost your €500 in crypto?
There are people out there that hold the equivalent of several thousand dollars into a web wallet, exchange, mobile wallet,... and they complain when they get hacked, or their account gets frozen, or there is a vulnerability in their wallet (or os),... Sigh  

In the fiat world, would you keep an enveloppe holding €500 in a mailbox that can be accessed by anybody outside if you can buy a secure safe for €60?

As for the part of people not knowing how a hardware wallet is being used: i tought my 11 year old daughter how to use my hardware wallets in case i pass away. She has been able to spend testnet coins since she was ~8 years old. If an 8 year old kid is able to figure out how a hardware wallet works, you should be able to do the same...

Back on topic, have you read https://bitcointalk.org/index.php?topic=5114708.0 ? It's about a critical vulnerability that was discovered in coinomi... Now, any wallet can have a vulnerability, but i personally did not like the way coinomi reacted to this disclosure. I wouldn't use coinomi myself because of the way they reacted...

I took this from their FAQ:

https://[scam exchange url]/faq



As a rule of thumb, any service that requires you to DEPOSIT funds in order to WITHDRAW funds is a SCAM...

Did you fund your account with an altcoin, or did they give you "free" money, and now you have to pay to receive your "free" money? In the first case, you were properly scammed, in the second case you allmost got scammed but were saved from a scam because you opened a topic on bitcointalk...

I edited this post to remove the link to this scam... No need to give it a better pagerank

1 - mocacinno

Thanks 

Exactly, it's self-regulating.
If I had a couple of ASIC's, and i could chose between mining with a pool that filled the blocks (whenever they could) or a pool that mined only empty blocks, i'd chose the first one... Even from a purely economical standpoint: a pool with full blocks collects more fees, so theoretically it should make more profits (if the pool divides the fees amongst their miners offcourse)

Informational message from now on

I had to shut down my faucet due to the fact i stopped renting a dedicated server (prices were increased to a level where it became to much for a hobby). You can always ask for tBTC directly if you need it.

From now on, i'll be giving enough tBTC to test out "normal" stuff on the testnet... Since the average fee is 1 sat/vbyte, you'll need about 150-300 sats to pay the fee for a transaction, that's 0.000003 tBTC. I figure normal tests require about 10 transactions, which equals 0.00003 tBTC in fees. This amount, plus some value to transact without running into the dust limit made me decide to give out 0.0005 tBTC to people asking for it when they only give a minimal explanation (from now on).

If you want more, make a clear case: what are you actually planning on doing, why do you need more than 0.0005 tBTC, why can't you use regtest. You don't need to harm your privacy, but i'll need more info than just the basics

I'll also be batching payments (if possible) and i will not give any guarantees... If i suspect you from abusing the tBTC i gave you, or if i suspect there's a high chance you'll spam/scam/multiaccount, or if i'm just not @ the office for a couple of days/weeks, or i forget or overlook applications, no payments won't go out.


I recently tried to help a couple guys that were in need of some tBTC, and i found out there are only a handfull of relatively stable tBTC faucets out there... That's why i decided to take a stab at making one myself:

https://tbtc.mocacinno.com/

Following things are "features", not bugs:

• it has a lot of ads: i'll use part of the ad income and/or tips to rent some hashrate (or buy an old ASIC) an mine some tBTC to fill the faucet's wallet. The rest of the tips will go to hosting costs and electricity costs while mining... If the faucet ever runs completely dry, and there is no income or tBTC donations, the project will stop...
• it's behind cloudflare: it's only tBTC... Don't use it to do anything illegal because big brother might be watching
• it's ugly: i'm not a designer
• it only pays once per hour: i'm trying not to waste tBTC in fees since the hashrate on the testnet is relatively high, so tBTC isn't that easy to mine
• it's missing some security headers: it's only a tbtc faucet... I didn't put much effort into securing it
• it's loading external content: it's only a tbtc faucet... I didn't put much effort into securing it

If you run into any other bugs or potential weaknesses, let me know

What could you do with tBTC?

• Use it when you develop a new script/app/...
• Use it to test the lightning network
• Use it as a learning tool: there are loads of tBTC wallets (including, but not limited to: hardware wallets, desktop wallets, mobile wallets and paper wallets). Point newbies towards these when they have the need to learn how to perform certain actions in a risk-free environment

[/s]

I see far to many people defending the exchanges engaging in these behaviours in this thread... Really... I'm astounded that the general consensus isn't shunning these exchanges and making a public list as to which exchanges should be avoided at all costs.

I tought about a relatively analog situation... It's actually the other way around from the post made by the OP, but it's equally valid.

The situation
Person A sells guns on openbazaar accepting BTC
Person B sells his kid's second hand toys on openbazaar (a digital garage sale) accepting BTC

Since openbazaar uses a HD wallet for the seller, the buyer (that can potentially be law enforcement or a criminal) is now able to follow the trail of unspent outputs untill they are exchanged on one of the many KYC exchanges. If the buyer is Law enforcement, they are now able to get a warrant and tie the identity of the seller to the sale. In case the buyer is a criminal, he can wait untill the exchange is hacked, he can hack the exchange himself, he can blackmail an exchange operator, he can bribe an operator,...

Bottom line is that, as a seller, it doesn't matter if your client is the police or a thief, you have to be realistic and know that in the future, it might be possible for either seller to find out how much BTC you hold and where you live.

In case of the gun seller, this is good if law enforcement can tie his identity to his sales (so they can arrest him)... In case for the garage sale it's VERY bad (since the thief now knows how many BTC person B holds, and knows where he lives).

Now, i hope i've made my point that both person A and person B have added benefit when mixing, coinjoining or exchanging to an anonymous coin. I hope this makes it clear that it's NOT the act of mixing/coinjoining/exchanging is illegal. There are, in fact, perfectly legal reasons to mix/coinjoin/exchange. It's NOT up to the exchange to lock users because they want privacy. It's up to law enforcement to track illegal gun sellers down, and only get warrants for people that are doing illegal stuff. An exchange, even if it's looked upon as a financial institution, is NOT a valid form of law enforcement. They do not have the right to meddle, track, block, ban,... The only thing they are allowed to do is keep the KYC information SAFE untill law enforcement comes around with a legal warrant to request this information. A warrant based on concrete evidence that the person that's being investigated has a high probability of having done something illegal, a warrant signed by a judge.

If exchanges are forced to do act like law enforcement by the law of the country they operate in, we should switch to exchanges that are located in countries where the laws aren't completely retarded. If exchanges took it upon themselfs to play "world police" they should be dropped, shunned, avoided, sued,...

Would you like it if you FIAT bank decided to block your account because you worked for a brewery, and since drinking and driving is illegal, they no longer accept the money of people that have anything to do with alcohol or tobacco? Would you be OK if they blocked your bank account because they saw you walking out of a pub at night? Would you be OK if they blocked your account and did not want to release your money before you gave them an absurd amount of personal information? Would you be OK if they plain blocked your account and did not give you any way of getting your money back?
The answer is: NO, you would not be OK... If this happened to you, you'd be searching a lawyer by now, you would have contacted the newspapers, you would be calling your relatives to withdraw all their money from said bank... Why on earth do people think this behaviour is not OK with FIAT, but perfectly fine with crypto?

Sure there is a choice: don't use those exchanges... Really, if you have a choice between two otherwise equal exchanges: an exchange that will ban you for mixing and an exchange that won't ban you: chose the latter...

There are many good reasons for mixing, coinjoining or switching to a more anonymous coin (like XMR). For example: there are a (very limited) number of people on this forum that have the ability to dox me, Theymos also keeps my ip records on file for a while. I don't want anybody to be able to tie my crypto funds to my physical person, since i don't want my daughter to be kidnapped and helt for crypto randsome.


BTW: this thread wasn't about an exchange not accepting funds that came from a mixer, but about an exchange that locked a user's account because that user coinjoined/mixed using an unspent output from an unspent output that was generated by an exchange...

Wasabi isn't a mixer... Wasabi is a wallet with an extra feature that allows you to participate in a coinjoin from the gui... It's up to you wether you do this, or just use wasabi because it's an open source, HD, native bech32 wallet with easy tor integration.

The only thing we (as a community) can do is to raise awareness and AVOID exchanges that engage in this behaviour like the plague. I get why they have to implement KYC procedures for anybody that wants to exchange CRYPTO <--> FIAT, but when you want to withdraw said fiat crypto, they have no business with which address you fund. If you fund somebody's address that's engaged in an illegal activity, it's up to law enforcement to ask the exchange for the KYC info, not for the exchange to behave like law enforcement.

EDIT: you're right, OP posted 2 cases: one of a user mixing and one of a user coinjoining with wasabi wallet... I focussed on the latter

well...

The first one was posted in a megathread... Questions in such a thread are easily overlooked. To be honest, i don't hold any doge, so i can't answer the question either, but somebody in the thread probably knew the answer but skipped your question since it's one of the thousands that have been asked there.

The second question is talking about an altcoin which is not very popular on this forum. I try to stay away from making political statements, but i think the majority of the longtime users of bitcointalk wouldn't want to be caught talking about BCH.

That being said, the answer is relatively simple: Somebody (not going to name names here) wants to create an extra source of income with BCH, so they decided it was/is a good idear to force miners to pay a dev fee. IIRC, they threatened miners that wouldn't donate with orphaning their blocks. Since the person who had the idear of a dev fee seems to have controll of the majority of the  hashrate, he could very well perform such an action... Basically, i think this is more or less blackmailing, and if i were a BCH miner (which i'm not), i'd move pools to a different coin that uses sha256d as it's POW algorithm.
But yes, the thread is real, and if they're not lying about their hashrate they could very well start orphaning blocks if they wanted to.
Do think twice before investing in a coin where there's actual proof that one entity has sufficient hashrate behind them to start blackmailing others...

Well, some of these people will be choosing beggars (and they'll react as such), however, it should still be possible to give those people a choice... I don't think it's unfair to tell people that want extensive private advise tailored to their specific situation at a time that's convenient for them  that you simply do not have the time to help everybody for free, so that you'll be offering private tutoring at a nominal fee. If they don't like this, they're welcome to join one of your future (pre-planned), free public meetups, but that any elaborate question outside of these meetups will be billed.

Offcourse, if you're going to bill somebody, you'll have to have something to offer: don't bill them for simple (stupid) questions you can answer in a couple of seconds, make sure you have in-depth knowledge about the subject they want to discuss and plan some time exclusively for them.
BTW: make sure you're being payed BEFORE giving advice. I used to help people out that offered bounties after their problem was solved, it was VERY rare to actually get payed. Usually, those people dissapear after they've been helped, and i'd rather help somebody that was clear about not paying upfront than somebody that offers payment but dissapears afterwards.

Personally, i wouldn't have a problem monetizing this... If somebody asks a question on this forum i usually try to answer it for free (like your free meetups), however, if they ask help privately, i usually ask for a reasonable compensation for my time (like the persons asking you explanations in private)...