I don't understand the purpose of this method of unlocking a Jade wallet. When I select the QR mode in my Jade, it prompts me to enter my previously selected PIN (6 digit number) to the Jade. Then the Jade gives a QR code which I need to scan from the phone (or PC with camera). Then the web page shows another QR, which I need to scan it using the Jade. Then the Jade issues QR, which I need to scan with the phone. Then the web page issues another QR which I need to scan with the Jade.

How does this scanning QR back and forth between the Blockstream website and the Jade wallet adds any security? Once the PIN is entered, anyone can do the same thing. How is this method any more secure than just entering PIN to unlock a wallet? 

Can I find a wallet's seed phrases or private key, if I have the wallet's seedQR?

Blockstream Jade has a unlock feature called QR PIN unlock. First I enter my previously selected PIN numbers. Next is the part I don't understand its purpose I go to a webpage then I take QR pictures back and forth between Jade and website. Once I entered the PIN numbers on Jade, anybody with a phone can do the next part, right?

I used Cryptotrader.tax and I found two errors in the app.  I contacted their support team.  They had acknowledged the errors. They fixed the issues and emailed me back to test to confirm the fix.  Both of the errors would have raised my tax obligation falsely.  I contacted them and asked them if they were going to notify their customers who were affected by the errors.  They are not responding. 

I just want to know what I can do to bring this to the public. 

Below is the email exchanges. 

8/27/2021 ME:  There must be thousands of your customers, if not more, who had been given inaccurate data that was now brought to light as a result of me pointing them out to you.  Are you planning to notify your customers of these recently fixed discrepancies in your app so they can re-upload their trade data?

8/27/2021  CRYPTOTRADER.TAX SUPPORT:    "I appreciate the concern here and yes, we do plan to notify our customers so that they can re-import their data for Kraken. We follow a standard practice for this in which our dev team runs an affected user analysis and then we will send an outreach by email to all the affected users. We are committed to addressing any errors and helping our customers to get the correct calculations. Thank you for reaching out about this issue and for providing evidence that made it very easy to escalate and then resolve the bug. Please let me know if you have any more feedback or concerns that I can share with our team."

8/27/2021 ME:  "Do you have any rough projection of when the email will be sent out?"

9/6/2021  CRYPTOTRADER.TAX SUPPORT:  "Thanks for following up in this. Our engineers are running a query in the production database to determine all the affected users, and then our David, our CEO will be sending out a message. This should be completed by the end of this week."

9/27/2021 ME: "please update me on the status of the CEO notification." 

9/28/2021  CRYPTOTRADER.TAX SUPPORT:    Thanks for checking in about this. It has taken a bit longer than expected to run the query in our production database as we want to extra thorough in collecting all affected users. We should have this completed within the next week. Feel free to send another follow up message if you do not hear from me."

10/27/2021 ME:   "Please update me"

CRYPTOTRADER.TAX DID NOT RESPOND.

10/27/2021 ME:   " As a result of the two defects I found in Cryptotrader.tax app, I assume, some of your PAYING customers got accounting reports that erroneously raised their tax obligations.  Does cryptotrader.tax intend to notify the affected customers? "

 CRYPTOTRADER.TAX DID NOT RESPOND.

I used an online crypto tax app this year.  It is one of the well known apps. 
   However, I found two errors in the app.  As far as I know these errors only apply to the coin transactions I made at the Kraken exchange.  1-The app was processing my buy transactions as receive transactions.  2-The app was not including crypto selling fees in the cost basis.  Both of these would negatively affect my tax situation. 
   I let the company know about these issues.  The company representative contacted their dev team. She said they will run affected user analysis and notify the users.
   Here is my question.  Considering the critical nature of the errors I discovered, I feel I deserve some form of a reward.  Reasonably speaking, what kind of reward do you think I could ask for? 

In one bitcoin transaction showing 2 outputs with different addresses, how do I know the wallet address of the recipient?  I guess I don't understand what the 2 addresses of the 2 outputs.  The 2 addresses are 2 public addresses of the wallet?  That doesn't make sense because the 2 addresses have different btc amounts. 

If I buy some bitcoin worth $1K, including fee and cost, then one year later it is worth $2K.  At that time, I give it to my friend.  My friend then sells it for $2K.  Then, does my friend have to pay tax?

Everywhere I read tells me it is not a good idea to leave BTC long term at an exchange wallet.  However, the same people who say that recommend crypto interest earning accounts such as BlockFi or Celsious.  Doesn't make sense to me.  So I should not trust Coinbase or Gemini yet I can trust BlockFi or Celsius to keep my crypto safe?  What?

Any Metamask users?  I am using Chorme browser extension Metamask on Windows PC.  My Metamask has a regular Metamask account and a hardware Metamask account.  The hardware account is linked to my Ledger Nano S.  I am trying to send ETH from that hardware Metamask Ledger account to a regular Metamask account.  So, I set up the amount to send and press confirm.  After that I see the circling orange bars and eventually the transaction got failed.  There is no instruction on how to do this anywhere.  Did I need to approve that transaction with the Ledger Nano?  If so, I did not get any prompt to do so.  Also, if I didn't have to approve that with the Nano, what is the point of using a hardware wallet?

Hi, I am a bitcoin novice.  I use Ledger Nano S with Ledger Live.  I want to check my Nano S BTC balance on blockchain.  

So, I open Ledger Live and open the BTC account then click on "receive."  Then, it generates a recipient address for my Nano S.  I copy the address then go to live.blockcypher.com then plug in the address.  

The balance showing there does not at all match my balance showing in my Ledger Live.  What am I doing wrong here?

I cleared cache in my Ledger Live multiple times. 

I heard IRS allows LIFO or HIFO method for crypto tax calculation (as oppose to FIFO), but LIFO/HIFO methods require more thorough transaction records keeping? 

1) Is that true?  Does IRS even allow LIFO or HIFO for crypto tax?

2) If true, using API to import transaction documents from Coinbase to Koinly satisfy the record keeping requirement?

3) Also, does using either LIFO or HIFO increase the likelihood of audit than using FIFO?

Thanks

I found some unauthorized transactions in my Coinbase Pro account.  I reported to Coinbase and  went through the recover process.  They said my computer was compromised, or someone else  used my computer to place the orders.  I went through due diligence to rule out all those. 

Coinbase does not show any history of orders placed.  They only show history of orders filled. I wish there was a way to prove that the orders were NOT placed by me.     

I placed 4 smart trades on 3commas to buy BTC.  Each trade was to buy 0.01 BTC.  Total 0.04 BTC.  Also, each trade had TSL (trailing stop loss) at -2%.  When it started buying, I logged on and saw the status of the smart trades.  It said 1 was "placed."  Another one was "pending."  2 were "finished."  However, when I went to my exchange, I only saw 0.02 BTC.  BTC price never came down to the -2% from the recent high.  I got on the chat line with the 3commas support and he didn't have an answer.   Also, the on the trade status, the TSL price did not change at all.  Trailing stop loss should follow the current price moving up.  Has anyone experienced this?     

I don't understand why people say BTC brain wallet is a bad idea.  Of course I have to be careful how I write the seed words.  For example, if I used words such as "roof Tokyo 1313 cucumber ....  wrestling 62 blue," there is no way someone can guess them intentionally or otherwise.  If I wrote the words down on a piece of paper somewhere safe, and if water damage smeared a bunch of the characters, the chance of me guessing the correct characters would be immensely better than guessing random characters. Am I missing something? 

So I am learning Electrum wallet on my windows 10 desktop.  To sweep my BTC from paper to the Electrum wallet, I type in my private key in the Electrum.  I type one letter wrong, and the Electrum's "next" button remains grayed out.  As soon as I type in the correct letter, the "next" button is now ready.  My question is...  How does Electrum know whether it is a valid key?   

I went to bitaddress.org and generated a private key.  Here it is.  KxJYJ35GVd8vbyAdYTFLoV4vFkLyDPxVHMJq4xu5N39vBTM1wRUy

Why is it only 62 characters?  I thought bitcoin private key is always 64 characters long. 

When I use a Bitcoin ATM to buy Bitcoin, some BTC ATMs allow me to print a paper wallet with the private key printed.  Now how can I trust that this private key is just generated and nobody else in the world knows the key?  For that matter, when I buy a hardware wallet, how can I trust it to have legit private key?  Is there way to verify the legitimacy of the private key?