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1161  Bitcoin / Electrum / Re: Experiment not works on: May 19, 2023, 03:42:19 PM
Go to Electrum, on the history tab, click on the transaction and pump the fee to the priority you wish on the https://mempool.space/
The transaction stayed unconfirmed for 14 days and most nodes have probably dropped it from their mempool. It should be a local transaction now.
OP, if you no longer want to make that transaction, just right-click on your transaction and remove it.

For lower fee, increase the fee to 16 sat/vbyte on Electrum and use ViaBTC to accelerate it. Your transaction will be confirmed anytime that ViaBTC mine a block.
If OP wants to set the fee rate to an amount so that he/she can use ViaBTC free accelerator, 10 sat/vbyte should be enough.
Note that the transaction is legacy and 10 sat/byte = 10 sat/vbyte.  
1162  Bitcoin / Bitcoin Discussion / Re: Algorithm for selecting a low-fee transaction from the mempool on: May 19, 2023, 02:01:00 PM
So you say it is purely a greedy algorithm?
It's not that there's a certain algorithm which miners have to follow that.
Miners are free to include any valid transaction they want. They can even include a transaction with zero fee, but they include transactions with highest fee rates to maximize their profit.
1163  Bitcoin / Bitcoin Discussion / Re: Algorithm for selecting a low-fee transaction from the mempool on: May 19, 2023, 01:33:15 PM
My question is what is the algorithm that a miner picks a transaction from the mempool to include it to a block?
Miners prioritize transactions based on their fee rate. The more fee rate you use for your transaction, the faster it can be included in the blockchain.


Is it a greedy algorithm which just picks the ones with highest fees? Is the "age" of a transaction in the mempool also a factor? Or is it just a combination of fee and a random choice?
It doesn't matter when you have broadcasted your transaction. It all depends on the fee rate.
1164  Bitcoin / Development & Technical Discussion / Re: How does coin base transaction works? on: May 18, 2023, 10:42:34 PM
Being a new member of the forum, I need more information on how coin base transactions operate and how they vary from regular bitcoin transactions.
A difference is that coins that have been received in a coinbase transaction can't be spent until 100 more blocks are mined.


Regular transactions have inputs and outputs, but coinbase transaction does not have any inputs and are basically created out of thin air.
The newly generated coins aren't created out of the thin air. Miners work for them.

The bitcoins involved are higher valued cause they are newly minted and have never been involved in any other transaction prior to that.
No. There is no difference between the value of newly generated coins and value of other coins.
When you want to sell your bitcoin, no one will ask you whether you have mined them or you have purchased them.
1165  Bitcoin / Development & Technical Discussion / Re: [INFO - DISCUSSION] Bitcoin Dust Limit on: May 18, 2023, 08:29:01 AM
is this then perhaps also different with taproot or how does the 'dust' behave with the p2tr (bc1p...) addresses?
Yes, that's different.
The 294 satoshi is the dust limit for segwit version 0. The dust limit for segwit version 1 (taproot) is 330 satoshi.
1166  Bitcoin / Bitcoin Technical Support / Re: Minimize your transaction fee with Electrum wallet on: May 17, 2023, 11:40:02 PM
For example, right now, in my signature campaign address, I have 4 unspent outputs(0.0015, 0.004, 0.005, 0.005). I tried to send 0.001 BTC in normal mode without selecting any coins(inputs) and the fee with 1 sat/byte was a total of 400 sats. It's because it was either taking all the unspent output as input or most of them while with my first UTXO, I could send 0.001 BTC. In that case, there would be only 1 input. I tried and it was asking for a fee of 200 sats in total.
I will do the same thing as you if fees are high, but will consolidate the inputs if fees are low.
Assuming the network isn't congested and the fee rate of 1 sat/vbyte is enough, with using 1 UTXO instead of all 4 UTXOs, you save around 200 satoshi, but you will still have 4 UTXOs after your transaction and this may cause you to have to pay high fee for your next transactions.
When the network isn't congested and you can make transaction with the fee rate of only 1 sat/vbyte, it's better to use all the UTXOs, even if one of them is enough for making a payment.
1167  Other / Beginners & Help / Re: Newbie should learn from this fast confirmed transactions tricks on: May 17, 2023, 10:48:17 PM
If you are using the free service of ViaBTC, you might need a transaction of between 15-16sat/bytes and above before they can help you accelerate it for free.
I feel you are confusing byte with vbyte.
The minimum fee rate to be eligible to use their free accelerator is 10 sat/byte (note that it's 10 sat/byte, not 10 sat/vbyte.)
For a normal segwit transaction with 1 input and 2 outputs, the minimum required fee rate would be around 16 sat/vbyte.

and I'm unable to use their service because I used 10.13sat/vbyte for it, which makes it practical as they alerted me that the fee was too low.
That's because your fee rate was below 10 sat/byte.
1168  Bitcoin / Development & Technical Discussion / Re: [INFO - DISCUSSION] Bitcoin Dust Limit on: May 17, 2023, 06:16:55 PM
originally Bitcoin dust (an amount of 546 satoshis) was not necessarily a problem for crypto users.
Note that the 546 satoshi is the dust limit for legacy outputs. If the output is segwit, the dust limit would be 294 satoshi for that.
1169  Bitcoin / Bitcoin Technical Support / Re: 0 transaction block on: May 17, 2023, 12:29:39 PM
If we check the block that was empty in the post then the above scenarios are also not valid for such empty blocks because currently there are many transactions awaiting to be added in the next block and even in this case the block was mined without any transactions.
I didn't say the block was empty because there was no transaction.
As I already said, that block was mined only 11 seconds after its previous block and that's why it was empty. The miner didn't have enough time to remove outputs from UTXO set and add transactions to the candidate block.
1170  Bitcoin / Bitcoin Technical Support / Re: 0 transaction block on: May 17, 2023, 11:28:12 AM
It's also a possibility that a miner would mine empty blocks when the network is highly congested. With a congested network miners might face delays in getting new transactions, and in that case the miners also mine empty blocks of blocks with very few transactions.
This is wrong.
When the network is congested, miners have so many transactions in their mempool and they always try to include as many transactions as possible to maximize their profit.
You would see empty blocks when there is no new transaction (which is almost impossible nowadays) or the block is mined in a very short time after the previous block.
1171  Bitcoin / Bitcoin Technical Support / Re: 0 transaction block on: May 16, 2023, 06:14:22 PM
The block was mined only 11 seconds after its previous block and the miner hadn't added any transaction to the candidate block yet.
Note that AntPool didn't get any transaction fee in that block, but they got the newly generated coins (6.25 BTC) and that's a success.
1172  Economy / Web Wallets / Re: Is Blockchain.info a scam? on: May 15, 2023, 09:43:23 PM
I know what is UTXO but how many UTXO should it create to make a huge difference in transaction fees?
The size of a normal transaction including 1 input and 2 outputs is around 225 byte. If you add an input to your transaction, so that it includes 2 inputs and 2 outputs, it size would increase to around 375 byte. That's around 67% increase in transaction size. If you increase the inputs to 3, the total size would be around 520 byte.

BC generated wallet, the sender wallet was always different and it usually had one input and two outputs but here I found a transaction that has 3 inputs and 2 outputs, I have no idea why.
You had three inputs because you had received that fund in three different transactions.
I'm not a fan of blockchain.com wallet and due to obvious reasons, I would never recommended anyone to use it, but what you said isn't really their fault.
1173  Economy / Exchanges / Re: Binance User on: May 15, 2023, 03:25:58 PM
I almost lost some USDT to the wallet upgrade today.
You shouldn't lose your fund even if you have made deposit to expired addresses.
According to their announcement, you should be able to credit the deposits made to old addresses manually.

For more information, visit the following article.
Existing Deposit Addresses to Be Retired (2023-04-18)

Quote
Funds deposited into expired addresses are safe and will not be lost. Users can manually credit the deposits via the "Transaction History" page. Do note that deposits made into expired deposit addresses would not be automatically credited.


The attached link shows an error 404 once I click to visit it.
Sorry. I edited the link.
1174  Other / Beginners & Help / Re: Am confused !!!! on: May 15, 2023, 03:17:42 PM
Metamask & Trustwallet - For Shitcoin aka Altcoin
Even for altcoins, it's not recommended to use a close-source wallet like trustwallet. Visit the article published on cointelegraph and see how a vulnerability caused some users who created wallet through their browser extension to lose their fund.
Trust Wallet to reimburse users after $170,000 security incident

We don't know how the keys are generated on trustwallet and there is no guarantee that the same thing won't happen to those who are using their application.
1175  Other / Beginners & Help / Re: Can someone stole your money with seed phase? on: May 15, 2023, 02:35:28 PM
Will the person be able to withdraw your money or change password and block you from having access to your wallet?
Take note that your password encrypts your wallet file locally, so that someone who has access to your device can't access your fund.
Someone who has access to your seed phrase can use it to generate the same wallet and spend your fund. The thief doesn't need your password at all.


I think, if someone manages to obtain your private keys without your knowledge, they can potentially gain access to your wallet and perform actions on your behalf, such as withdrawing your funds or changing passwords.
Wrong.
They can spend the fund, but there is no way to change your password. As already said, your password encrypts your wallet file locally.
1176  Other / Beginners & Help / Re: Am confused !!!! on: May 15, 2023, 01:34:55 PM
I started on Exodus, Electrum, and MyCrypto and I'm still using these three I highly recommend these three to newbies but always invest time and effort on how to secure your coin, even the best wallet cannot secure your portfolio if you lack the best security measures.
Electrum is surely a trustworthy wallet and if it's in the correct way, your fund would be completely secure, but exodus is a close-source wallet and it's not recommended.
When you use close-source wallet like Exodus, you don't know how the keys are generated and whether they are stored on their server or not.
1177  Other / Beginners & Help / Re: What will happen to a wallet when the wallet company closes on: May 15, 2023, 12:35:19 PM
A non custodial wallet which use BIP39 code without add anything e.g. Electrum, Bluewallet, Mycelium will let you to recover your coins, even the site was been shutdown, although it's highly unlikely.
A seed phrase generated by electrum isn't BIP39. Electrum uses its own algorithm for generating a seed phrase.
Of course, since electrum is open-source, there's  nothing to worry about if you have a seed phrase generated by it and you will be always able to derive your private keys from your seed phrase.
1178  Other / Beginners & Help / Re: HOW DO I SECURELY STORE MY BITCOIN AS A BEGINNER? on: May 14, 2023, 10:46:19 PM
If you want your wallet to be completely secure, your private keys should be generated using a secure tool on a secure device.
One way is to use a open-source trustworthy wallet on an airgapped device and the other way is to use a good hardware wallet.

Note that's it's recommended to generate a HD wallet with a seed phrase instead of generating a single private key. Writing a seed phrase (which is series of words) is much easier than writing a private key and in this way, you can have numerous addresses all generated from a seed phrase.
Don't forget to keep multiple copies of your seed phrase (or your private key, if you want to generate a single private key for any reason) in separate safe places.
1179  Other / Beginners & Help / Re: Newbie should learn from this fast confirmed transactions tricks on: May 14, 2023, 08:01:48 PM
i could be wrong, but I have reason to believe that bumping the fee rate to minimal accepted fee rate by ViaBTC TX accelerator does not help. I did it before and all I could keep getting when trying to accelerate the transaction was "TX ID does not exit" and yet it was even a valid TX ID.
When you bump the fee, your transaction is replaced by a new one with a new ID and you should submit the new transaction. Maybe, you submitted the replaced transaction.
I have done what suggested by BlackBoss_ before and I can confirm that it works.
1180  Bitcoin / Wallet software / Re: [Tutorial] BlueWallet - Bitcoin Wallet Discussion on: May 14, 2023, 07:02:15 PM
I am not sure is it just me or everyone but OP images are not visible at all??
It's not just you. The same thing has happened to any other image uploaded to imgur. Visit the topic created by acroman08 for more information about the issue.
Imgur images suddenly became invalid?
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