Yes, bitcoin core is CPU intensive (at least until it has caught up with the blockchain), that's no secret.
But there are several thousand users all over the world who are able to run it on hardware ranging from top-notch speed demons to computers salvaged from scratch heaps. Somehow, overheating does not seem to be a common problem for them, maybe because the hardware and operating systems they use are able to cope with CPU intensive stuff.
If your laptop isn't able to either transport the heat away from the CPU when it's under full load, or reduce CPU speed so that it does not create so much heat, it's a problem with your laptop and the operating system it runs. Bitcoin core can't fix that problem.
I already suggested to check for temperature management software - do you have anything like that? If not, you should definitely install it.

Onkel Paul

You can report posts to the moderators (I've done that occasionally for blatantly illegal offers.) The only thing that results from reports that the mods don't consider worthy of action is that your reporting percentage will go down a little bit, but that does not hurt IMO.
There is a grey area of things that really sound fishy but whose legality can not be decided without further investigation - I don't know whether the mods will invest so much time into it. Another aspect is that some offers may be illegal in some jurisdictions while they are acceptable in others.
Overall, I prefer the board to be pretty liberal about what gets moderated. I stay away from things that I consider problematic, and I'd advise anyone to do the same, but if you feel like something should be moderated, report it!

Onkel Paul

I'll open a bottle of beer and enjoy life.

(I'd do that anyway.)

Onkel Paul

Investment means giving the money to someone who uses it for their business and pays you back a dividend (and you normally get some kind of share that can be sold later). Think stocks.

"Save in bank" is actually a kind of investment. You give money to the bank, they use it for their business and give you a small interest (if at all) as dividend, and you can withdraw your money. With current interest rates, this is pretty boring, the only advantage compared to keeping money in a safe at home is that it's easier to do most types of payment, and that you don't need your own safe...

Buying precious metals is not an investment because those metals won't work with the money you paid for them. It's mostly speculation (you hope that you can sell it for a higher price) and safekeeping (real value of money can fall due to inflation, while precious metals will mostly retain their "real" value). But you need to consider storage fees.

To decide which is better you need to know what you consider "good".
Do you want to maximize your ROI? Do you want to store your wealth safely? Do you want to enable entrepreneurs to build their businesses?

Onkel Paul

Wahrscheinlich liegt das an der ungewöhnlichen Verteilung zwischen Upstream- und Downstream-Datenvolumen.
Zur Vermeidung des Skin-Effekts (http://www.heise.de/newsticker/meldung/Kabelverstopfung-Telekom-aendert-Strategie-gegen-Skin-Effekt-2157959.html) werden für ADSL spezielle Kabel verwendet, die auf die ADSL-typische Verteilung von Up- und Downstream-Volumen optimiert sind. Permanente Fehlbelastung durch erhöhte Upstream-Raten lässt diese Kabel vorzeitig altern, da hilft weder Stecker ziehen noch ein Austausch der Box.

Onkel Paul










( Bitte nicht so ganz ernst nehmen...)

Are you in any way overclocking it?
If not, this sounds like your machine is just broken. Shit happens
Check whether your laptop has software to manage temp by reducing the clock speed when CPU gets too hot - I think that many Windows laptops have somethign like that preinstalled.

Onkel Paul

Your question 3 is not related to bitcoin in any way. You need a tamper-proof container to make sure that nobody messed with the contents. But for your shoe example, how would the buyer know that the seller did not package fake shoes instead of the real products? He needs to trust them (unless the manufacturer themselves creates these tags and packages the shoes with them).

Remember the holographic tags that were used to mark genuine software etc.? Manufacturers of fake products were very quickly counterfeiting these as well.
Producing a truly tamper proof tag (together with an associated validity check mechanism) would be prohibitively expensive for consumer products. It might make sense for really expensive goods.
But all of this is really independent of bitcoin or any other payment mechanism.

Onkel Paul

1) no. Bitcoins can be used for anything. You could try to create an altcoin for a specific purpose, but as soon as it is freely tradeable it can be used for anything.

2) no. How would the wallet decide whether a payment is for a specific purpose?

3) don't understand the question (and it's pretty much unrelated to bitcoin). NFC tags can be used to transmit any kind of information, but their association with some object is only as strong as they are affixed to that object.

Would you please remove the meaningless "poll" from this thread? I suppose you created it inadvertandly.

Onkel Paul

That's not how it works.
A public key is computed from the private key. There can not be two different public keys for one private key.
The other direction is possible (multiple private keys can have public keys that hash to the same bitcoin address) but so extremely unlikely that the probability can safely be ignored.

Onkel Paul

Fat chance 

Onkel Paul (bin absolut unbeteiligt, lese den Thread nur mit Interesse)

Please don't!
Bitcoin mining with anything other than specialized mining hardware is absolutely hopeless! Laptops in particular are not built for constant full-power operation and might wear down pretty quickly.
You might just as well use your laptop as a shovel to dig up sand on the beach searching for dropped coins; that will probably generate more revenue.

The time of mining bitcoins with commodity hardware is over, and it won't come back.

Onkel Paul

Naja, Mining im Weltall hat schon was - da muss man sich nicht so viel Gedanken um die Wärmeabfuhr machen, es ist ziemlich kalt da oben (wobei Vakuum ein ziemlich schlechter Wärmeleiter ist, muss also alles möglichst effizient abgestrahlt werden). Aber das mit der Energiezufuhr dürfte schon nicht ganz trivial sein, denn Sonnenkollektoren in ausreichender Größe ins All zu bringen, dürfte etwas den Rahmen sprengen.

Onkel Paul

http://bitcoinclock.com/ shows it exactly to the second (of course, the exact time is impossible to determine in advance, but it will give you an idea)

Onkel Paul

I assume that total payment is somewhat related to income in BTC through fees - those most likely won't be higher just because the exchange rate plummets. So there's no convincing reason for bitmixer.io to increase their signature campaign expenses.

Onkel Paul

Wer rechnet denn auch damit, dass ein anonymer Betreiber, der es offensichtlich nicht so genau mit den Gesetzen nimmt, einfach so mit Geldern abhauen könnte? Keine Ehre mehr unter Gaunern!

Onkel Paul

I was under the impression that they don't mind if people use a "lower rank" signature. IIRC correctly some hero member stated that he preferred to use the senior member signature. I don't mind much, to me the hero member sig looks good

Onkel Paul

I can't recommend any, as I don't have enough experience. Maybe others will be able to give advice.
However, you should always be aware that even professional miners operate close to the equilibrium. That is, even with their presumably cheap electricity and miners that were cheaply bought in bulk, it's hard to make a positive ROI. Home miners most likely are unable to recover their investment.
If you absolutely want to mine, you can do it, but expect a net loss. If you're just looking for an efficient way of turning fiat money into bitcoins, buying them is the preferred method.

Onkel Paul

Look for "bitcoin mining calculator", there are quite a number of them. Enter the data for this miner and weep.
If
- you pay less than 0.50 US$ for it
- your electricity is free
- and the difficulty does not increase much,
you'll earn a few cents after one year...

Onkel Paul

SPF is a mixed blessing - as soon as you (legitimately) forward mails without completely rewriting the sender address, you get lost or rejected mails when you SPF handling is strict.
There's a workaround (SRS) which works mostly but makes some things unwieldy.
The other thing is that SPT does not protect the From: header (see http://www.openspf.org/FAQ/Envelope_from_scope), so this kind of phishing would still be possible.

Onkel Paul

Assuming that you're not out to scam lenders (which I cannot verify of course)...
Have you considered the risk due to appreciating exchange rate?
When BTC exchange rate raises to just $600/BTC (which I would consider quite realistic) your monthly payments of 3.7 BTC (for a 12-month loan) will become increasingly expensive in fiat (from currently $1070/month to over $2200/month). If your income is fixed in fiat, this will become an unbearable burden very quickly and will lead to default.
BTW, the same thing currently happens with loans in swiss francs taken by borrowers who were lured by the low interest in SFR compared to EUR loans - after the limit on EUR/SFR exchange rate was lifted their calculations looked very bad...

Onkel Paul