Mining is the process specified by Satoshi Nakamoto in the Bitcoin whitepaper which generates a proof of work for each block in the blockchain. Mining was always around and could previously be done on CPUs and GPUs. The first release of the Bitcoin client contained a built-in miner.

Part of mining is the generation of new Bitcoin. Because Bitcoin is not premined, the only way to get Bitcoin when Bitcoin first came out was to mine them.

No. The 20-byte-hash in the output script is the same as the 20-byte-hash in the scriptCode. It is the ripemd160(sha256(pubkey)).

Forgot to say that I extended the deadlines. The auction will end at 0:00 December 21st UTC. The ads will show for a week, from December 22nd to December 29th.

Clearly multiple people chose those passwords to protect some amount of Bitcoin.

The point is that people think those passwords are strong passwords because online password checkers say that those passwords are strong. If you are recommending people to use brainwallets, they are likely to use those types of passwords thinking that they are strong passwords when in actuality they are not.

Why? I understand not using probably (I thought this was in beginners and help so it was primarily as a warning to noobs) but what is wrong with "horribly insecure"?

Cracking programs:

• https://github.com/ryancdotorg/brainflayer
• https://bitcointalk.org/index.php?topic=1573035.0 (semi related to cracking brainwallets, although geared towards cracking addresses in general)

Research:

• https://rya.nc/cracking_cryptocurrency_brainwallets.pdf (defcon talk, not research paper but close enough)
• http://fc16.ifca.ai/preproceedings/36_Vasek.pdf
• https://eprint.iacr.org/2016/103.pdf

This is not just something that I believe or my emotions. Many other people in the Bitcoin technical area have discussed how brainwallets are insecure and not recommended for general use. Off the top of my head, I know that greg and theymos has discussed this before.

It is possible to securely use brainwallets, but it should not be something that is recommended to newbies and those who do not understand technical aspects of Bitcoin IMO.

I think it should be failing. sendcmpct is supposed to be 9 bytes (1 byte boolean 8 byte uint64).

My guess is that someone wrote their own node software, set the user agent to be /Satoshi:0.13.1/ for some reason, and then did not realize that the version integer is uint64 instead of uint32.

Bid increments are 0.001BTC

There's also btcd, bitcore (note: not Bitcoin Core but bitpay's thing), bitcoinj. There a list of all full node implementations floating around here somewhere.

It is highly NOT RECOMMENDED to use brainwallets. Humans are a horrendously low source of entropy. There are multiple research papers and programs that show that brainwallets are horribly insecure and easily cracked as what you think is a strong password probably is not a strong password.

BIP 38 paper wallets will not be particularly helpful here. It only protects against someone stealing your paper wallet and trying to get the keys. BIP 38 does not protect against someone just guessing the password you used to create your brainwallet.

There are certainly software that can securely erase the data on an SSD. They use different ways to do this so DBAN won't work, but the software to securely erase SSDs exist. Just use Google and you will find them.

You cannot post images until you are a Jr. Member or above.

Having an SSD shouldn't make a difference. Regardless of whether you use and SSD or an HDD, deleted data is never actually deleted. That is something caused by the filesystem, not the hardware itself.

I have decided to auction off ad space on the website. If you would like to advertise on the site, please see https://bitcointalk.org/index.php?topic=1719125.0

I am looking for people who would like to advertise on my website, https://www.bctalkaccountpricer.info/

What is the website?

For those of you who don't know what this website is, it is a place to look up various stats about an account, including a price estimation. This site is frequently used by account sellers as well as those who want to find out the potential activity of an account, posting statistics of the account, and all of the addresses previously posted by the account. For more details, see https://bitcointalk.org/index.php?topic=1142314.0.

Stats

The website receives 100-300 impressions per day.

Ad Slots

There are two ad slots currently available, a banner ad on top and a sidebar ad on the right. The banner ad must be 728x90 and the sidebar 120x600. The ads will be shown from Tuesday December 20th at midnight until Monday December 26th at 11:59 PM UTC.

The following screenshot shows the ad locations:



Ad restrictions

The ads must either be images with links or an iframe. Any ads related to anything NSFW will not be allowed. I reserve the right to reject bids and ads.

Bidding

When bidding, please indicate which ad slot (banner or sidebar) you would are bidding for.

Bids for each slot start at 0.005BTC

Bidding ends on December 19th at Midnight UTC.

The winner of the auction will be notified once the auction is over. You must either send first or use a reputable escrow.

The database folder should disappear after you shut down Bitcoin Core. That is expected behavior. What is not expected is clearing the debug.log. I don't know of anything that would cause the debug.log to be cleared on startup.

It should only be reindexing and warning you that it is reindexing. That it does reindex when you don't exit Bitcoin Core improperly is not surprising, although this behavior should have already been fixed.

Next time that happens, watch your network traffic. If you look at the task manager, there should be something there to watch your network traffic. You can also go to the debug window and there is a tab for Network Traffic. If you actually are resynching, you should see that that you are suddenly receiving a ton of data and that there is a lot of network traffic. If you are not, then you are reindexing instead of resynching.

Blockchain.info has to run their own full node(s) as well (which is connected to the nodes listed). Their node(s) seems to have issues every so often.

Veracrypt is considered safe. It has been audited and it is based on TrueCrypt. If you encrypt your hard drive with at least AES, you should be good to go.

BTW, this belongs in off topic, I have moved it.

That is a service issue. Users on this forum cannot help you with this. Please contact the support of bitpanda to resolve your issue.

Why would that be the case? The log files are persistent and stored on disk, they should not be deleted between starts of the computer, or of the software.

That your log files are deleted between starts and that you constantly have to redownload seems to indicate that something is deleting your datadir and Bitcoin Core has to recreate it every time it starts up.

Any errors. Pay attention to anything regarding the data directory and blocks folder. You should also look at the lines that are logged when you start up Bitcoin Core and see what it says about the initial state and whether that matches your settings.

There is no difference between the confirmations times of transactions made by web wallets and desktop wallets. There is no distinction in those transactions that would cause one to confirm faster. What does matter is the transaction fee and that can be set by any wallet, regardless of desktop or web.

Using a web wallet is highly NOT recommended. Most do not give you access to the private keys, so you don't actually control your Bitcoin. Furthermore, your Bitcoin is at the whim of the web wallet. If the web wallet shuts down, your Bitcoin will no longer be accesible (usually). If you don't take the proper precautions to backup your private keys if you have access to them, you will lose all your Bitcoin.