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41  Bitcoin / Mining speculation / Re: Bitmain Points ( A new feature, What is it) ? on: February 14, 2020, 03:08:29 AM
0 points. Last order 2019-09-19 which took until 2019-12-06 to receive  Wink
42  Bitcoin / Hardware / Re: My Pangolin Nightmare now halved but persists... on: February 12, 2020, 01:26:26 AM
That sucks. Bitmain is just as bad for warranty IMO although I've never dealt with them for DOA. My Z11 had the middle hash board fry in less than two weeks. I couldn't even pay them for a replacement board and have been running it with two boards since. The only company I've ever had good luck with sending me replacement parts for free under warranty was Canaan. 
43  Economy / Service Discussion / Re: coronavirus affected bitmain ? on: February 06, 2020, 08:28:57 PM
https://www.coindesk.com/coronavirus-controls-in-china-are-delaying-crypto-miner-deliveries-firms-say

There were delays from Chinese New Year too. They cancelled your order and giving you a refund now?
44  Bitcoin / Hardware wallets / Re: Kraken Security Labs just 15 minutes to hack both of trezor's crypto hardware on: February 01, 2020, 01:41:26 AM
Isn't the passphrase just an additional word added to the seed phrase?

It is used in combination with the recovery seed to access a single hidden wallet and can be any length you want. You can also create as many hidden wallets as you want with multiple different passphrases. Technically speaking, yes you could attempt to brute force a passphrase for a single hidden wallet with the recovery seed taken from the chip, but this would be extremely difficult unless it is a very basic passphrase. Any incorrect passphrase is still going to generate a wallet, but with no funds. Using a passphrase that could be easily brute forced would defeat the purpose of using a passphrase to begin with unless you are creating decoy wallets. A random 12 character alphanumeric passphrase would cost $128 billion on average to crack today. Passphrases will weaken over time, so choose strong ones, or transfer funds to another hidden wallet with stronger passphrase if existing is too weak.
45  Bitcoin / Hardware wallets / Re: Kraken Security Labs just 15 minutes to hack both of trezor's crypto hardware on: January 31, 2020, 09:11:48 PM
So that tells me that it isn't always possible to hack the Trezor if someone has possession of it.  Someone please correct me if I've interpreted that incorrectly.

You are correct. This attack is not possible if you use a passphrase.

From Satoshi Labs:
Quote
To protect our devices against physical attacks without compromising our principles, we invented and implemented the Passphrase feature. The passphrase itself is not stored anywhere in hardware, SatoshiLabs doesn’t possess a backup, and therefore cannot be exposed or in any way “hacked” by a third party. When it comes to the passphrase, the user is the most crucial part of the whole process as it’s up to you to decide how complex your passphrase will be, how will you store it, protect it, or whether you should use one at all.

From Kraken:
Quote
Enable Your BIP39 Passphrase with the Trezor Client
This passphrase is a bit clunky to use in practice but is not stored on the device and therefore is a protection that prevents this attack.
46  Bitcoin / Hardware / Re: Special thread concerning bitmains coupons refunds discounts. on: January 16, 2020, 07:00:26 PM
Just confirmed my refund came through after 43 days.
47  Bitcoin / Mining speculation / Re: Electric Rates.... look around in de-regulated states on: January 16, 2020, 01:25:01 AM
Only partial billing month since switching, but savings was a little over $100. My default supplier jacked their rates up $0.01 kWh so should be even more savings next month when fully on new supplier. Taking my chances with them and throwing some Z9's back online. When I checked quotes for my address now it's only $140 instead of $225  Cry lol
48  Bitcoin / Hardware / Re: Special thread concerning bitmains coupons refunds discounts. on: January 08, 2020, 05:32:32 PM
The day I asked for an update they said it was approved and pushed to finance team and to still wait patiently. The credit's been removed from my account balance and still waiting. They must be waiting for a bigger run still.
49  Bitcoin / Mining speculation / Re: Electric Rates.... look around in de-regulated states on: January 08, 2020, 04:35:29 AM
they either up your rate or you cancel without early term fee is what they offer.  That's how they get out of the contract.  Most of the cheap suppliers do this, it's all a bait and switch scam and if you don't reply/call to answer the mail or email they send, it auto adjusts to their higher rate that they set.

Even with no unexpected usage claims and early cancellation on their behalf, that's pretty much how every single contract works through PA Power Switch, which is controlled by the PUC. It's only a bait and switch if you don't cancel before initial term ends. Amazon does the same thing with Prime. People can be taken advantage of if they don't read and fully understand what they are agreeing to prior to switching. Most of the bad ratings I've seen from suppliers I've been with were from people not reading the contract and letting it renew, sometimes switching from fixed to variable or whatever is in the renewal terms or letter they send prior. Nobody should let any of these contracts renew unless they want to get robbed.

I think you'd have a hard time with any suppliers using 20,000 kWh/month on residential. You might be better off switching to commercial but they usually have demand charges that could make it more expensive.
50  Bitcoin / Mining speculation / Re: Electric Rates.... look around in de-regulated states on: January 07, 2020, 02:32:05 AM
No need to get a lawyer. Just contact the Pennsylvania Utility Commission and the Attorney General. They'd be fined and/or shutdown after enough complaints and it wouldn't require spending a dime. I don't know your exact situation, but they probably had a cancellation provision like almost every other supplier that says they can cancel your contract for any reason at any time. There's a difference if they canceled your contract and offered a new rate versus if they just jacked up the rate out of nowhere in a fixed contract and expected you to pay the bill. All you would do is just not pay them, dispute the bill immediately, and make them take you to court. I did this with a gas supplier I had a will-call contract with who decided to start delivering whenever they felt like it and jacked up the price at the same time. I won in court at their expense and made them pick up their empty tank.

I know the AG and PUC went after multiple electric suppliers several years ago and those were mostly related to telemarketing calls and door to door sales where people just didn't read the contracts and were promised savings. The companies still got fined millions and/or had to issue refunds, some in multiple states.
51  Bitcoin / Mining speculation / Re: Electric Rates.... look around in de-regulated states on: January 06, 2020, 07:34:07 PM
If you're in a fixed rate contract they legally can't change the price unless they have some provision for it in the contract. Just need to read everything. Variable rates I think they would definitely exploit to their advantage so I never consider them.

I've been through 5 different suppliers over the past 3 years and all were fixed rate. These ranged from 3-12 month contracts. I'm small and use maybe 8,000 kWh/month. None have ever canceled on me for usage increases and I want to say I added miners for every supplier except the last one. Only one canceled on me early when I told them I wasn't going to renew. Renewal is where they'll get you on fixed rates. Every single supplier has had a renewal rate that's higher than my default supplier, usually at an increase of 3-5 cents kWh from the original contract rate. Really it's not a big deal if they do cancel early. It just automatically switches back to default supplier. The only downside is almost all of these companies with low rates are offering new customer/introductory rates. Once you signup and don't renew, they won't let you signup again, but there are new companies popping up all the time with lower rates.

Inspire sent me an email saying they switched me Jan 1, but I haven't received any letters yet confirming.
52  Bitcoin / Hardware / Re: Special thread concerning bitmains coupons refunds discounts. on: January 02, 2020, 11:50:10 PM
I asked them for an update. Technically they haven't broken the time window since they told me it could take up to 2 months. I think they are hoping for BTC price to go up since it was over $10k when I made purchase in September. Everyone else they seem to have told weeks or 1 month.
53  Bitcoin / Hardware / Re: Special thread concerning bitmains coupons refunds discounts. on: January 02, 2020, 06:22:16 PM
I've had the credit showing on my account for some time now but still waiting for them to process refund. It's been 1 month since I made the request and gave them my address.
54  Bitcoin / Mining speculation / Re: Bitmain & Canaan To Release 5nm chip ASIC Miners in Q1 2020! on: December 27, 2019, 05:46:05 AM
I think Bitmain could make Q1 deadline but not Canaan. The S15 was supposed to be their future proof 7nm miner and they dropped the S17 a few months later at almost the same price, so it will be no different. That was 9 months ago and all the + and e models are still slightly less efficient than the initial S17 Pro 53TH. Most of the T17 series is still less efficient than S15. Current 17 series pricing has been at dump level for quite some time IMO.
55  Bitcoin / Mining speculation / Re: Electric Rates.... look around in de-regulated states on: December 27, 2019, 02:41:51 AM
I signed up just to see what they do. They're the only ones offering the "unlimited" rate for a year, but it definitely seems variable based on area and usage because it initially says $39.99. If they already locked you into the contract then you should be good. It's just what they do when they see the usage is high. I know when I've shopped around in the past, other companies had usage clauses that let them cancel if it was different than the usage you provided or what they saw on your bill during signup. They won't raise the price, they just cancel your contract. I didn't see any specific limit in their agreement like I have with others, but cancellation provisions does say they can cancel your contract for any reason at any time, including if your actual electricity usage exceeds the usage anticipated by Inspire. We shall see what happens.

There are actually several wind farms out by me, including the largest in the state, but last I knew all of the output was owned by Old Dominion and Southern Maryland Electric Cooperatives. Looks like Inspire just buys credits from various wind farms.
56  Bitcoin / Mining speculation / Re: Electric Rates.... look around in de-regulated states on: December 26, 2019, 09:08:17 PM
What company is offering that? I'm in PA and my price to compare is 5.6 cents kWh. I used to shop around and had a generation rate as low as 4.2 cents before. I've switched my generation a few times before I finally just went back to Penelec because their rates dropped after tax cuts. Unless rate was at least 1 cent cheaper it wasn't really worth it because in my case they were tacking on other fees for things like non-utility generation and increasing the distribution charge so the savings was null or even cost me.

Most of these suppliers bank on you not cancelling prior to their ridiculous rate increases when the contract auto-renews, have cancellation fees, etc. One of my last suppliers actually cancelled my service 2 months early when I told them I wasn't going to renew even though they confirmed multiple times it wouldn't be cancelled until contract renewal.

If it's Inspire, I guess my historical usage is greater than yours cause they're giving me a rate of $225, which would still be worth switching if there really are no hidden fees.
57  Bitcoin / Project Development / Re: The big idea crypto Mining farm in antartica on: December 24, 2019, 03:49:26 PM
With big Capital it can be done! 
-90 wow...  :O

Would be a waste considering Bitmain's 17 series minimum temperature spec is 0C. There are people on here having problems with them where they won't even hash at colder temperatures.
58  Bitcoin / Project Development / Re: PHP Coding question in regards to validat user input before passing it into mysq on: December 18, 2019, 06:38:03 PM
Goto php.net and read. What he posted would work just fine provided you have db.php and your database table is named address and has a single field called address.

The form is displayed if it hasn't been submitted. It displays confirmation or error based on if address valid or not. Even with the include commented out, I see the form, can submit a non-valid address, and receive an error, with form now hidden, since it was posted.

If you're expecting someone to do all of your work for you and just copying and pasting code from various sources, your db.php include is probably broken too. I would recommend not directly inserting form variables into the database unless you like SQL injection. You should probably also modify what he provided to check whether the data was successfully inserted or not and display error/confirmation based on that. Right now it displays nothing (blank page) when submitting a valid address if the insert fails. That's probably where your confusion lies because you are not reading or understanding the code presented to you, however, it is a perfectly fine working example.

People aren't going to want to help you if you make no attempt to learn and are rude.
59  Bitcoin / Hardware / Re: Duty, Tariff, VAT Rates on: December 11, 2019, 09:21:20 PM
USA has changed to 27.6-37.6% if china made.


Not true. It's 2.6% and Section 301 ruling still 25%. What minefarmbuy referenced previously that showed 35% was for goods from Cuba or North Korea.
60  Bitcoin / Project Development / Re: PHP Coding question in regards to validat user input before passing it into mysq on: December 11, 2019, 09:16:23 PM
Don't expect everything handed to you. What you are asking is very basic PHP and already provided a solution that would allow nice SQL injection. You do not need a separate submit.php file to POST to. You can just POST to self and do all the processing in the same file. For the code you have in pastebin, you are making database calls before you even use your checkAddress function. You are also redirecting to transfer.php regardless of any specific condition. I advise going to php.net and reading up on the documentation.

Say you put all of your code and form in the same file called phpnoob.php and have form submit to self. In pseudo code, all you want is this:

Code:

//Check if form submitted
if($_SERVER['REQUEST_METHOD'] == 'POST'){

     //Check if address valid and insert into db if so
     if(checkAddress($_POST['address'])){
          INSERT INTO DATABASE HERE AND REDIRECT OR DO WHATEVER ON SUCCESSFUL INSERT
     }
     //Display error for invalid address
     else{
          echo "Invalid address";
     }
}

//Display form if form not submitted
else{
     FORM HTML CODE HERE
}


Based on your responses, I'm guessing you just copy/pasted the checkAddress function from somewhere and don't understand PHP.
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