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2481  Bitcoin / Bitcoin Technical Support / Re: I need to send Bitcoin to Cashapp, but the fee is huge on: May 02, 2022, 06:39:01 AM
So I've checked to see how much I'd pay in network fees, and the fee is too much.
Currently, even transaction with 1 sat/vbyte are confirmed very fast and you shouldn't have to pay a high network fee.
Are you sending bitcoin from your own wallet or a custodial service like an exchange? Custodial services usually charge a high withdrawal fee.
2482  Other / Beginners & Help / Re: Is there any decentralized way to short crypto? on: April 28, 2022, 01:20:06 PM
I noticed the waves exchange have listed btc up and btc down tokens,
I just visited the exchange you mentioned to see how those tokens work. It seems that no one is interested in those tokens and there is no liquidity.
The 24 hours trading volume for both BTCUP and BTCDOWN is zero.
2483  Bitcoin / Bitcoin Discussion / Re: Sending Crypto to the wrong address on: April 27, 2022, 03:55:35 PM
We're developing something to reduce human error in crypto transactions, especially those in which some mistake was made when writing the receiver address.
We don't need that.
If you write an address manually and make a mistake, it's almost impossible that it's a valid address and your wallet or the service you are using won't allow you to make transaction.
2484  Bitcoin / Electrum / Re: Electrum can't handle "send to pubkey" inputs on: April 27, 2022, 03:47:12 PM
This is an issue with blockchain explorers incorrectly linking P2PK coins to the addresses we are now more familiar with that didn't even exist at the time the P2PK outputs were created.
You are saying that there was no address when the transaction mentioned by LoyceV was made? Am I getting you correctly?
If so, electrum shouldn't show any transactions made before that transaction? Right?
But if you import 19uf6F6EDijkH4ZUaqsi3pZ2SVD6A5RG8X into electrum, you will see some transactions made on February 6, 2010 (11 days before the transaction mentioned by LoyceV)

What am I missing here?
Maybe, in that time, people could create both P2PK and p2pkh outputs. Right?
2485  Bitcoin / Electrum / Re: Electrum can't handle "send to pubkey" inputs on: April 27, 2022, 12:39:13 PM
I can't really find much information about this, searching on keywords give completely different results.
I think the replies made in the topic created by BlackHatCoiner last year should be helpful. He asked the same question.
Electrum doesn't show rewarded coins
2486  Bitcoin / Electrum / Re: Watch-only wallet on: April 27, 2022, 08:50:00 AM
I checked and it watch-only now. I can now just get address to send BTC for save and can't spend from watch-only wallet right?
Right.
You can use your watch-only wallet for generating new addresses and checking your balance and transactions.
You can't sign transactions using your watch-only wallet and you will need your wallet on VM whenever you want to make a transaction.
2487  Bitcoin / Electrum / Re: Watch-only wallet on: April 26, 2022, 02:54:13 PM
My wallet is standard wallet.
Are you sure about this?
In the OP, you said that you have created a wallet with 2FA. As mentioned by Charles-Tim, your wallet can't be both standard and 2FA.

If your wallet is 2FA, you have three master public keys.
If your wallet is standard, you have one master public key.


It is possible with multisig but not possible with 2FA setup. That guide is kind of misleading as it is pointing to multisig.
That guide works.
A 2FA wallet in electrum is actually a 2 of 3 multi-signature wallet.

In the 2FA wallet, you can go to "Wallet information" and get all three master public keys.
If you create a multi-signature wallet with those three master public keys, you will have a multi-signature watch-only wallet with the same addresses as the 2FA wallet.
2488  Bitcoin / Bitcoin Discussion / Re: Please could someone help me with my bitcoin on: April 26, 2022, 12:18:16 PM
I didn’t realise it would be worth more as a collectible. I just wanted to get some money from it to clear some debts I have.
If you want to sell your physical bitcoin here on Collectibles board or any other place, you should very careful to not get scammed.


I don’t know if I can post an image as I’m a new user but I certainly will do if I can
You can upload your image on an image hosting website like imgur and post the link here.
2489  Bitcoin / Bitcoin Discussion / Re: Please could someone help me with my bitcoin on: April 26, 2022, 12:05:03 PM
I never heard of these physical coins. Wow!. How many do you have and the value?
Read the following article on Bitcoin Wiki.
Casascius physical bitcoins


ANyways here are the steps
----
----
This should work. But I don't recommend it.

OP should have a big amount of bitcoin and It's not recommended to import the private key into a hot wallet. OP should import the private key into an air-gapped device and make offline transaction.
2490  Bitcoin / Bitcoin Discussion / Re: Please could someone help me with my bitcoin on: April 26, 2022, 11:18:46 AM
If there is any more help you can offer I would appreciate it greatly.
What do you exactly want to do?
Do you want to sell the physical coin itself?
Do you want to redeem the private key and sell your bitcoin on an exchange?
Do you want to make sure that the physical coin you have is genuine and you don't want to sell your bitcoin?
2491  Bitcoin / Bitcoin Discussion / Re: Please could someone help me with my bitcoin on: April 26, 2022, 10:51:49 AM
You should destroy the hologram and import the private key into a wallet and access your bitcoin.

Note that, before importing your private key into a wallet, you should make sure that the device is secure and there is no malware in it.
I recommend you to use electrum.

Warning:
Download electrum only from its official website and do not forget to verify your download.


For more security, you can create a watch-only wallet on a online device, create an unsigned transaction and sign the transaction on an air-gapped device.  
For more information on how to make a transaction offline, visit the following link.
How to spend from an offline paper wallet using Electrum

If you only want to check your balance and you don't want to make any transaction, you only need to enter your address (not your private key) in a block explorer like blockchair.
(Never enter your private key in a block explorer.)
2492  Bitcoin / Electrum / Re: electrum wallet problem on: April 25, 2022, 04:45:58 PM
As the address in question has received its first transaction about 6 years ago, you definitely created your wallet using a very old version of electrum.

In electrum versions older than 3.3.4, servers were able to show any message. Some servers abused this feature and showed a message asking users to download a fake version of electrum.
Didn't you update electrum using a link shared by servers?
2493  Other / Beginners & Help / Re: spend twice more Bitcoins while waiting the block to be verified? on: April 25, 2022, 07:13:41 AM
But, what if I develop my own wallet that will not check my balances and eventually allow me spend more than I have?
Then your transaction will be rejected by the nodes and it won't have any chance to be included in a block.
Once you broadcast a transaction to the network, your node sends it to other nodes. The nodes that receive your transaction check validity of your transaction and they send your transaction to other nodes only if it's valid.
2494  Economy / Economics / Re: CBDCs really worth it? on: April 24, 2022, 06:25:23 PM
Even there is nothing like supply about CBDCs, or maybe I am not getting you right
By increasing supply, I meant that CBDC will be still like fiat which is created out of the thin air. It won't be like bitcoin which has a fixed total supply.


It can be printed in what context do you mean by this?
The papers you use as fiat currency are printed out of thin air. Governments always print more papers and reduce the value of existing papers.
2495  Bitcoin / Electrum / Re: electrum wallet problem on: April 24, 2022, 10:29:30 AM
1JychhDmt13D3Gim6tHU53hRHwAZrSFdQs
Where did you get this address from?
The address has already received 6079 BTC and has been inactive in the past 10 months. I strongly doubt it's owned by you.

Isn't your wallet watch-only?
2496  Bitcoin / Electrum / Re: electrum wallet problem on: April 24, 2022, 09:57:07 AM
no transaction found on my transaction history
If the wallet is synced (the circle at bottom right corner of the window is green) and there is no transaction in your history tab, that means that you haven't received any transaction.
Maybe, you have created multiple wallets and now you are opening the incorrect one.


only see have record already send out my btc from electrum wallet
I don't really understand this.
In the third line of your post, you said that there is no transaction.

Can you share the address you deposited to, so we can check its balance and transactions?
Note that by sharing your bitcoin address, you may damage your privacy, but it is has nothing to do with your security.
If you don't want to share your address for any reason, you can enter your address in a block explorer like blockchair.com and check the transactions (if there's any) yourself.
2497  Bitcoin / Electrum / Re: electrum wallet problem on: April 24, 2022, 06:25:45 AM
What do you mean by "my btc gone"?
Do you mean you had bitcoin but the balance suddenly changed to zero?

Is your wallet synced? The circle located at bottom right corner of the window should be green.
Do you see any outgoing transaction in history tab?
Are you sure you have opened the correct wallet?
2498  Other / Meta / Re: Why number of users in deleted post count of self-moderated topic is falling? on: April 23, 2022, 06:13:08 PM
Is there any chance that you forgot about the actual number for users whose posts were deleted?
OP is right.
Click here to see an old version of the topic in question in Wayback Machine.
The screenshot which has been taken on August 13, 2021 says that 1413 posts by 192 users deleted.
2499  Bitcoin / Electrum / Re: Lost my phone and access to Google Authenticator on: April 23, 2022, 04:54:39 PM
If I am not wrong, I think I read about some cases where trustedcoin helped some users to reset their 2fa codes.
You are right. Read their reply to the email TryNinja sent them about a year and half ago.
Although I doubt they still help the users to reset the 2FA, I agree with you. As I already said in my previous post, OP should try his/her chance. There is no other option than that.

Of course, they shouldn't be blamed if they aren't helpful in such cases. If they help users to reset the 2FA, it would defeat the purpose of a 2FA wallet.
Assume that someone's computer is compromised and the hacker has now access to both wallet file and the email. If trustedcoin help the hacker to recover the 2FA, the hacker can easily steal the fund while 2FA was supposed to add an extra layer of security.
2500  Bitcoin / Electrum / Re: Lost my phone and access to Google Authenticator on: April 23, 2022, 02:08:25 PM
but I don’t get why google doesn’t link my account to the app so I can recover it with email.
Your account on google authenticator has nothing to do with your email address. You don't even need to enter any email address when creating an account on google authenticator.
Your 2FA code is generated from your secret key using a defined algorithm. It's not that you connect to google server and they give you a code. The google 2FA application is just a tool that does the calculations. There are some other applications that do exactly the same thing.
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