Actually, such high fees can happen... Remember: the fee is calculated based on the size of the transaction (in bytes).
If this user created a transaction using hundreds of inputs, the fee can become really big...
The only way of knowing what really happened is if we get to see the transaction id.


If i need fast confirmations, i do the following thing:
1) estimate the size of the transaction based on the number of inputs and outputs
2) multiply this size in bytes by the number i find on this website: https://bitcoinfees.21.co/
3) round up

60 satoshi's per byte, at time of writing, would have you waiting between 0 and 50 minutes on average.
80 satoshi's per byte has a big chance of getting in the very next block

BUT, you can go as low as 11 satoshi's per byte and still have a reasonable chance of getting a confirmation within 6 hours...

hier is hun announcement thread:
https://bitcointalk.org/index.php?topic=1089301.0

Er waren er nog verschillende te vinden over deze service, een beetje TL;DR, maar zover ik weet is het een legit mixer.
Dat gezegd zijnde blijf ik toch nog even bij bitmixer.io.... Waarom risico's nemen

IRL = In Real Life... For example, if your brother lives far away from you, and also is a bitcoin enthousiast, you could probably get a loan from him without collateral using the forum to keep track of everything.

Are you asking if a non-collateral loan is possible? Yes, it is possible, if there is a trust relationship between the borrower and the lender or if the account of the borrower is worth a lot more than the loaned ammount (in this case, the lender can put a red tag on the borrower's account in case of a default, thus the borrower has an incentive of paying back the loan).

If you're asking if you yourself can get a no-collateral loan, i'd say that would only be possible if you know the lender IRL, so he actually knows you personally...

@OP: is this spamming your url, or are you selling your domain, or are you selling a product?
I guess you'll have to be more clear, so people understand what you're actually doing here...

fixed that for you

I don't consider either blockchain.info nor coinbase to be trustable... If you're not the one in controll of your private keys, you're not the one in controll of your bitcoins!!! I would suggest you to stay away from online wallets.

If you want a trustworthy wallet, i'd suggest you pick a desktop wallet from here:
https://bitcoin.org/en/choose-your-wallet

Personally, i'm a fan of the core wallet, but it takes a long time to sync and uses a lot of diskspace if you dont use prune mode.
Electrum or multibit HD are great to, they're deterministic SPV wallets, they only download the block headers, making them small and fast to sync, while still keeping your private keys on your desktop pc (so in your controll)

If it's php/mysql scripts (or static files) from a LAMP stack to a LAMP stack, it's usually the following steps:
1) syncing the files from old to new
2) making a dump of the old database
3) making sure you have a database on the new side
4) importing the dump from step 2
5) finding the config files, editing the database details

Afterwards, keep an eye on your error.log... Possible errors could include:
- incomplete sync/files in the wrong place
- wrong permissions
- wrong database settings
- ...

If you can't do it yourself, I'd suggest trying to make a deal with A!. If you can't make an agreement, you can always contact me, and i'll have a quick look. I do charge a nominal fee if it's a lot of work... If it's just a couple of minutes, i'll probably do it for free.

I wouldn't go this far as to saying mining is not profitable anymore... For example, this fictive example:
I'm a fictive guy that lives near a hydroelectric power dam. Because there's more than enough power, i have a special deal, so i only pay 2 cents/Kwu. It's pretty cold outside and i have a dry place with shelves where's it's naturally cool.
I also have a couple leftover PSU's laying around from my previous job.
Last but not least, my friend used to own an antminer S7, but he's fed up with mining, and gives it to me for $200 (local pickup).

If i put all these variables in a mining calculator, at current diff, block reward, BTC price, i get this number:
http://www.coinwarz.com/calculators/bitcoin-mining-calculator/?h=4730.00&p=1210.00&pc=0.02&pf=0.50&d=258522748404.51500000&r=12.50000000&er=634.44000000&hc=200.00

That's less than 3 months to break even...

Would you still say for this fictive person, mining is not profitable? I realise this is an allmost ideal situation, but i'm pretty sure some people still want to take the risk with less favorable conditions and longer ROI's... It's all about calculating your odds beforehand, and seeing if you want to take the risk or not (offcourse, for a lot of people, myself included, it's flat out impossible to ROI with older ASICs, because we pay way to much for our electricity and import duties to ever make a profit in the current economic climate)

You are correct about those cloud mining sites tough... They are either ponzi's, clear out scams or sell their risk to you for a small cut of their profits... I'd never invest in cloudmining again, not even if it's 100% certain to be a legit operation.

This is true, but apart from digital purchases, i think this would be the case for any crypto currency. I don't think it's thereoretically possible to make a digital currency that solves the problem of needing a shipping address when buying physical goods.

HD wallets might make it a bit more difficult to trace you, but not impossible... You can still follow the inputs/outputs, see which addresses combined inputs to create an output, guess change addresses,...
You even have tools like https://www.walletexplorer.com to do a lot of the grunt work for you... It's pretty accurate.

Also, i wouldn't recommand to use an exchange as sole anonimizing tool. An exchange can keep logs since it isn't really meanth for mixing coins.
If using exchanges as the only way to mix your coins, i would connect to exchange A using tor, deposit my dirty BTC, exchange my BTC for a more anonymous coin (like Dash, or monero,... Don't know wich coin is best since i don't usually mix my coins). After the exchange, i would withdraw my monero from exchange A to the deposit address on exchange B. I would use a trusted VPN  to connect to exchange B. Once the monero is in exchange B, i would exchange it back to BTC and withdraw to my mixed address... I think this would work.

Just my 2 satoshi's tough

This is one way of anonimizing bitcoins, but like you say, a pretty risky one (i wouldn't want to buy a couple thousand dollars worth of BTC from some guy at the corner of the street).

If you really want to anonimize your BTC, it might be better to buy it trough an exchange and then put it trough a couple mixers, some gambling sites, maybe even exchange it for an altcoin with built-in anonimity, send it to yourself and then exchange it back to BTC at a different exchange.
If you do this over tor, a proxy and/or a trusted VPN, it's next to impossible to trace back to you.

Bitcoin core can also be run in prune mode... That way you only need about 3 Gb diskspace. You still need to sync completely, but the blocks get pruned afterwards. core 0.13.0 is deterministic, the previous versions weren't. Advanced coin controll features are there, but some might have to be used using the console.

I assume you're talking about multibit HD: this is a deterministic SPV wallet, like shield132 mentioned, it doesn't need to sync completely (only the headers), making it smaller and faster (especially initially). personally, i find multibit HD lacking advanced coin controll features, but i must say it's easy to use, and pretty to look at .

AFAIK, both are safe to use, as long as you backup the seed (or wallet.dat), keep your pc malware free and chose a strong password.

You must realise you're not paying the transaction fee to the maker of the wallet, it's a fee that is payed to make sure the miners have an incentive to add your transaction to a block. So, it might not be wise to pick the wallet that lets you create transactions with the smallest fees, because those transactions might end up "hanging" or even "forgotten" by the nodes.

Personally, i prefer electrum, because it has a lot of coin controll features (like core, but i find the coin controll features of electrum more newbie-friendly, because they can be accessed via the gui), but is deterministic and SPV like multibit HD. It is said to be less secure to a brute force attack when using a weak password tough, and it's not as pretty as multibit HD.

https://bitcointalk.org/index.php?action=profile;u=785581
A full member without any positive feedback... Wouldn't do it if i were you.
This user might have good intentions, but you need an escrow that is known and trusted in the community.
If you use a full member without feedback as escrow, people might just assume it's an alt account of you.

If i need fast confirmations, i usually check https://bitcoinfees.21.co/ for the best fee to use... Estimate the size of the transaction, multiply the size (in bytes) by the fee on the website (70 satoshi/byte at the time of writing) and round up (just in case)... This way, you have a really good chance of getting your transactions in the next 1-3 blocks...



Most online wallets still require you to pay the miner's fee... The few that don't  require you to pay this fee, either handle their transactions off-chain (in their local database) or pay the fee in your place.
You hand over controll to your coins to save a couple cents...


There's allways the possibility of double spending your own inputs, or using RBF or CPFP

https://bitcointalk.org/index.php?topic=1200263.240
Look at the last pages of their official thread... Seems like other people are also complaining about not getting payed.

dsattler makes an excellent point, but next to the basic calculations, you also have to take into account the fact that the diff might rise faster than expected, the blocks will halve in less than 4 years, there's no guarantee the price will stay this high, you need a room with adequate cooling, shelves, wiring, custom charges might apply when buying HW, PSU's, taxation, and you need a basic techical knowledge to pull this one off... Having a good electricity rate just isn't enough.

To answer your questions:
1) depends on the cost of the miner, psu, custom charges, extra costs and power costs... For some people, an S7 (or even lower/older material) might do the trick, other's can't make a profit, no matter which miner they use

2) yes

Is it on the testnet or the main net? I'd be willing to do a couple of tests with testnet coins, but i wouldn't want to throw real BTC to a domain with no trust (no offence)...

Before doing this, i'd recommand emulating your earning here: https://www.nicehash.com/?p=calc
It's allmost impossible to break even with your CPU after substracting electricity costs.
Also, OP mentioned he'll be mining with a laptop... Since laptop's aren't really made to run 100% over a long time due to their inability to deal with the excess heat, OP might actually ruin his laptop by doing this...

True, altough it'll be rather tricky if the OP asks for a confirmation... That way you would have to be pretty lucky to broadcast a transaction at exactly 59:59 and still get it into a block ...
Rules are needed tough to see witch transaction actually wins, because on average, there'll only be 5-7 blocks during the game, so if it becomes popular, i expect several transactions being in the last block (didn't even think about that before your post)

Sounds pretty interesting, but the bitcoin gambling market is pretty full as it is. I'm guessing that when you want to start a game like this, it'll most likely never be used, unless you put a lot of effort into promoting it.
A second factor would be a trust issue... As long as you don't use an escrow, or have massive green trust yourself, people won't just sent satoshi's your way...