It was already confirmed. At the time of writing, it has 1 confirmation... You got lucky tough, 20 sat/byte is way under the 140 sat/byte recommanded by  https://bitcoinfees.21.co/

Have you been here long enough to remember the Master-P fiasco?
https://bitcointalk.org/index.php?topic=1307926

I wouldn't say forum escrows are 100% safe, but they're still a lot safer than not using an escrow at all...

I'm one of those guys that stopped mining a long, long time ago (my electricity price is close to 30 cents/kwu, so i couldn't mine btc profitably no matter what kind of asic i bought). So, since i don't own an S9 myself, i can't really give hands-on advice on this matter.
However, i don't think you can go wrong by making sure your miners are located in a dry, well cooled and dust-free environment. It might also be a good idear not to overclock them to much, and use some compressed air to clean them once in a while... The fact remain that many people complain about the build quality of the S9 (as well as the aftersale support), and no matter how much care you give to a machine, it won't make up for poor build quality in the end.

It's rather simple really,
If the people renting out their miners to nicehash could make more money by solo or pool mining, they would do so... They rent out their hashrate because they're getting more money from people that rent their ASIC time, than they would get if they would mine directly. So if YOU rent their hashrate, you'll mine less coins than your renting price.

Does that mean there is no way of making a profit? Not really, but in order to make a profit by renting hashrate at sites like nicehash, you'll have to investigate and mine coins that currently have a low diff, but have a potential to rise in the future. A second way of make a little profit is constantly monitoring all prices, and buy when, for some reason, the price dips for a couple of minutes.

By just renting hashrate at nicehash and pointing it to BTC, LTC, DASH,... you'll probably lose money.

For bitcoin mining, there is only one that can potentially be run profitably: the antminer S9

I clearly stated: potentially... If you pay > 10cent/Kwu for your electricity, chances of seeing any profit are slim. Even if you pay <10cent/Kwu, you still need a good plan and you need to be lucky. Antminer S9's seem to break easyliy, and a 90 day warrantee period for a chinese company does not seem to be equal to a 90 day guarantee period for an US/EU company (bitmain customer service is rumoured to be really bad)

theymos opens a bidding thread about once a week... It usually looks like this (old) one:
https://bitcointalk.org/index.php?topic=2070379.0

Do read the rules stipulated in the OP of his threads, he has specific rules for bidding!

If you were playing around with private keys without keeping tracks of which inputs were used and which outputs were generated, it might result in something like this, yes.

There are 3 possiblity's:
- you sent out the btc
- a hacker is robbing you
- somebody is sending out these coins "on accident", for example your spouse who's using your wallet instead of his/hers.


If i look at the amounts, at first sight it would be odd behaviour for a hacker. If a hacker hacks your pc/wallet, he usually steals everything in one transaction. It lowers the chances he'll get detected before completing the robbery, and it saves him from some fees. There were 13 minutes between the first and the last transaction, since the last transaction was the biggest one, it would have been a dumb thing to do from a hackers point of view (13 minutes would have given you ample time to notice something was wrong, and send those leftover BTC to a clean wallet).
Altough it's not impossible you were robbed, i'd take an educated guess and say it's probably the first or the last possibility in my list.

here you go:

The address was funded yesterday, using transaction 82e268cbdd8132651a95c185d99da2f1e737f7ee1a921b7adb126e3c9495ab8b . At this point, the balance was around 0.06
You've then sent some BTC to yourself with transaction e60307743aaca4dab2e581e9ea04958216b472a9582c56429902287b12b08071, you've lost 0.00097681 to the fees
You've then sent  0.00124594 BTC to 36GkYVh2AUGYd7ohZawGWrZ5vY5xV2HiGn in transaction 7ca2a6c254c537eaee641d721ca738be5dd076fec520cb6f54222abf153ebaa5
You've then sent  0.00037378 to 1CTq4VfxBGuCz8QvCcwzzn23iUn25VZb92 in tx b61d16faf418417f9012921f629a5ba8acb5a732086171e216a96f72832eb107
You've then sent  0.0004963 to 19yLuiC8wEJFssWQKTHxt55Qcubtj3BqKU in tx 14020bbc1bdcbd31d51470f469ddf99275ea9ee4dfb236a30f1b38df32cd7e81
You've then sent 0.00207241 to 1Bs5kN8ptteNzQT6n4EzvRjzoouVthNhUA in tx 1a336c0c409ad018a57bf740ca15b0557ce53784b1e4cab53d7b7bc31f6d3563
You've then sent 0.00934457 to 1CL7A6eBeh9pFLCoLvUuPKNXKgYGjfFqfP in tx af8fee3486cf76cac8ce35d750326938144014657e132f16d4e90e9392a1bb66
You've then sent  0.01099 to 1BeDLqVTVJdJin8Nz1h424yKeoh2GhieEL and  0.035698 to 1JsYDaFnsHr6T3cxJJSGGqaZ5K2QM1f8nB in tx 8f79ce1f8fc6cbc49170f6651360749d8451051cc970fb0eda7c04cfd05eec0b

At this point all unspent outputs that could be spent by the owner of the private key whose private key hash results in address 13HJKEZ5KKTqMSJwXPh9G5dsiiHwvjdbYC have been used. In laymen's terms, you have spent your 0.06 BTC in 6 transactions.

If you do not remember making 6 transactions yesterday, you could have a virus.

All unspent outputs that could be spend were already spend. In laymen term's, you've spent all BTC that was sent to this address.
However, you should see the transaction history, if you're looking at the history tab. You should see you received about 0.06 BTC yesterday, then spent this amount in 6 transactions. The end result is 0 available unspent outputs tough.

there used to be projects like mangocoinz that portrayed themselfs as cellphone minable
https://bitcointalk.org/index.php?topic=902788.0

But if i understood the concept correctly (i never took the time to read the whitepaper tough), it was a (pre?)mined that was distributed to users when they ran the mangocoinz app on their cellphone while exercising. This makes them not cellphone minable, but you sstill needed a cellphone to receive mangocoinz.

As far as i know, there are no pow algo's that are designed to give an edge to cellphone cpu's or gpu's.

I'm happily using both a trezor and a ledger nano S. I gave my ledger HW.1 to my daughter.

Can you be sure the manufacturer did not tamper with the initilisation workflow so they only create pre-generated seed phrases during initialisation? No, there is no 100% guarantee if you use the device out-of-the box and do not check the sourcecode, compile and verify everything yourself . However, trezor's design and firmware is completely open, they both use bitcoin standards, so you can easiliy check wether or not the seed you entered corresponds with the deposit addresses generated by your device. You could even open up your hardware wallet and check if all components are correct, you can verify the firmware,...

Like i said, the only thing they could tamper with, is the initialisation of their wallet... But you could potentially check the sourcecode and compile everything yourself, or roll a dice to create your own seed phrase. So, if they tampered with the procedure, i guess sooner or later somebody would find out and destroy their business.

As a matter of fact, did you check your other wallet's sourcecode and compiled everything yourself on a clean, potentially airgapped system? Did you check all signatures of your wallet before running it? In case you create a paper wallet, did you check the RNG they used???

I don't know many people that use a dice and an airgapped PC to create their private keys, so sooner or later you're going to have to trust somebody (wether it's the community, the reviewers, the manufacturer,...)

If not, your other wallets are less safe than your hardware wallet.

I guess it'll depend on wether or not you saved the session token. If you have the session token, you should be able to contact chipmixer and ask them to extend your session, and pick it back up when the DDos attack is finished.
Personally, i'd never deposit a single satoshi before saving the session token. In the pre-chipmixer days, when using bitmixer.io, the first thing i did before depositing anything was saving their letter of guarantee, which is the closes equivalent to saving the session token (AFAIK)

Good luck

I did have one piece of advise tough: bring your asking price in BTC down towards the asking price in FIAT.
On that website you posted, you're asking 250.000€, while on this forum you ask 75BTC (~= 303.500€). Basically, you're asking a 53.500 euro premium for paying in bitcoin... It would make a lot more sense for an interested buyer to exchange their BTC to FIAT and then make you an offer using this FIAT.

Or am i missing something here.

You got it right
that's actually a pretty good way of explaining difficulty to new members, i might have to point them towards this thread the next time i'm about to explain how difficulty works.

The only slight "mistake" is the fact that you cannot use the term "2 weeks later"... The difficulty doesn't adjust every 2 weeks, it adjusts every 2016 blocks. So in your story, the number of stones gets adjusted every 2016th trip the people make. If there are 2 people that carry 2 stones, it takes them ~10 minutes/trip (sometimes longer, sometimes faster, but the average trip time is ~10 minutes), so 2016 trips are ~2weeks.

If one breaks his leg, and the other person has to carry the two stones (time between blocks ~20minutes), it *might* take 4 weeks before the difficulty gets adjusted to one stone (depending if the other one breaks his legs at the very beginning of the period, or near the end of the 2016 trip period)

The OP was asking questions about electrum and electrum-ltc, not about core. Electrum is an SPV wallet, not a full node implementation, it doesn't listen to ports on your local machine, hence you do not have to configure ports differently.
Since electrum is not a full node implementation, it does not receive unconfirmed transactions, nor does it verify new blocks... This also results in the fact you cannot request a block template from an electrum wallet, so you can not use it to mine (sure, you can use an address generated by electrum to fund as coinbase transaction, but that's about it, it is not a mining node in any sense of the word).
Also, electrum is written in python, not in java

Sorry, what?
I have no idear what you're trying to say...

expedise which process? mining? A common CPU has little or nothing to do with bitcoin mining nowadays. A profitable miner HAS to use an ASIC (a very recent one for that matter). The only cpu that is involved in mining is the cpu of the controller.

the most important factor in being a profitable miner is not network support, it's the power rate. If you pay more than 10 cent/Kwu, you don't even have to think about anything else. It'll be close to impossible to mine profitably. Altough the controller has to fetch the block header, the amount of network traffic for a mining operation is minimal. Sure, you need a network connection, sure a low latency, fast connection might give you fewer stale shares, but it's certainly not the most important factor.

I don't know what this user means exactly, but anyway you put it: the risks outweigh the benefits.
Mining BTC with your laptop will make you less than $0.03 (in BTC) a year without incorporating the power and hardware costs (if you pay for power or hardware, you'll mine at a net loss). Altough the risks aren't that big, they still outweigh the potential income of 3 cents/years (with free power and free hardware)

quoted that for you