Bitcoin Forum

Hi all,

I decided to make a quiz for fun and to try and spread knowledge about Bitcoin to people who don't know about it yet. Give it a try and let me know how you did.

If you see any errors please let me know so I can fix them. :)

Good luck, and please share it on Facebook etc!

Quiz: http://www.onlinequizcreator.com/en/bitcoin-quiz/quiz-5439

Tips appreciated: 1B6J76fNpcCk85YALdmPr2qJ1eVzsXq9Ms

Where are the rewards (Who wants to be a millionaire! Coin rewards ^^)

Maybe some design tuning :) But in general it looks good.

Nice quiz...although i didn't do so well. Still have some reading to do. ;)

i only scored a 44k, as the time limit really started getting to me  :D

Haha! Glad to see people are enjoying it. I chose questions I knew the answers to (more or less) as otherwise it's easy to make the answers badly. If anyone has any suggestions for new questions let me know, if they're decent and relevant I'll put them in. :)

Cool quiz. Scored 80,250, so I guess I've been spending too much time reading about Bitcoin since I got the bug barely two months ago.

First now ;D

I think the Mt. Gox/Mt. Sox thing is going to be a bit of a problem for some people. In addition, as the questions are scrambled, it may ask you about how many bitcoins were seized from Silk Road, allowing one to then easily answer the question about what the shutdown illegal organization was.

Anyway, it was quite fun, and I am waiting to be topped.

Anyway, you should add more technical questions about transaction fees, mining pools, et cetera.

Haha..Funny options, who invented Bitcoins - Satoshi Suzuki

Yeah, the scrambling is a bit annoying, but I can't seem to turn it off.  ::)

I might make a separate quiz about the technical aspects. It's a great idea and would be fun to make, but this one was made for the general population, with the hope it would spread awareness and interest in BTC.

75 people have played so far! :D The questions with the most incorrect answers are the ones about the Genesis Block, how anonymous it is and how many BTC were seized with Silk Road.

Damn, that was the one i got wrong, lol   ;)

:D

Sweet quiz!

Thank you! :)

Last bump before I head off to bed... please share the quiz on Facebook/etc, spread the BTC love! :)

You need some sort of monetary(BTC) prize for first  ;D

Haha! Good luck with that. ;)

Pimpin' ain't easy! ;)

We need to restart the blockchain with that one :P

87,638

Apparently I don't read fast enough.

Note, one of your answers is technically incorrect (although close enough to correct that it is obvious which answer you are expecting).

I won't post the question or correct answer here so as not to spoil any of the quiz for anyone who hasn't tried it yet.  Send me a PM if you want to fix the quiz.

Some of these answers need correction.

Time to send Bitcoins internationally
"Virtually instantly" one can certainly deliver a promise to send bitcoins, but this zero-confirmation transaction is just that: a promise. The transaction hasn't even been committed into one single block (which can potentially be revoked) yet, so it isn't even in the blockchain at all.

That said, when a promise to send bitcoins is considered sending bitcoins, then the answer is correct. But this is a slippery slope: is sending coins over CoinBase considered sending bitcoins instantly? After all, it's another promise...

Seizure of Silk Road
The actual amount seized from Silk Road is over the options presented, at around 171955.09292687 BTC. This was seized in two instalments (https://bitcointalk.org/index.php?topic=83794.0#post_silk_road_seizure).

Well,  if we're going to be posting spoilers in this thread, then I'll go ahead and mention that the answer to:

"What is the maximum number of Bitcoins that can be produced?"

is not 21 Million.

If there had never been any bugs in the software, the maximum would have been:
20999999.97690000

However, early on there were a few blocks where less than the maximum number of bitcoins were mined.  As such, the new maximum will be a bit less than 20999999.97690000, although I don't recall how many less.

A zero confirmation transaction is much more than a promise. It is:

1. Conclusive proof that you control the funds
2. You having to take conclusive action (with a non-100% success) rate to try to send the Bitcoins elsewhere to stop the transfer from happening

I usually accept 0-conf transactions when I dealt with the other party before. Otherwise 1 is fine.

You may want to correct bitcoin.org, wikipedia, bitcoin wiki and every other known site about bitcoin before correcting a quiz question.

I would say a zero-conf transaction is less secure than a CoinBase transaction. Why?

• You can sue Coinbase if they don't pay you. Good luck suing a Finney attacker.
• There are a lot of people behind Coinbase. They'd have to agree before stealing your funds.
• CoinBase has a significant reputation. That is worth far more than any average trader's reputation is.

A one-conf transaction is fine IMO, but three confs or six confs are necessary for any large (>1000 mBTC) transactions.

I disagree completely, I will always trust math more than "you can sue them". Suing someone sucks and often costs more than it's worth. No-one sued Trendon Shavers, no-one sued SAM THEOFANOPOULOS and probably no-one will end up suing TradeFortress either (yes they are still preparing).

That's the thing with zero-conf transactions. There's no math protecting them.

If not math, at least the legal system will help you with Coinbase.

There is, they signed the transaction right? They also distributed the tx on the network.

The first proves they have the funds, the second that it would take considerable effort with a sub-100% chance to succeed to NOT transact is to you.

You are vastly overestimating the effort it would take. Even if the sender isn't a miner, there are still attacks available (https://en.bitcoin.it/wiki/Double-spending), the simplest of which involves no more than paying a large fee.

Nice!

I goofed up one answer though, dammit!

Adult beverage at work?

Hmm..............................

;)

I'm not sure how to fix this one, since AFAIK the transaction fee affects the speed you get confirmations. Is this correct? What would you say the average time to get 1 confirmation is with default transaction fees? I've read 10 minutes on Bitcoin.org, but it also says "Insant" there too...


Fixed, thanks for the feedback!

Fixed with more subtle wording. Thanks for the feedback! :)

I'm not too worried about spoiling it. People can Google the answers too if they really want to cheat....

I think bitcoin.org knows better. My guess is that they want to communicate informations to ordinary people.
And by ordinary i don't mean 40 years old guys that still live in their mother's basement.

They don't need to correct it and obviously they will not because if they adopt one of your suggestions people will start having follow up questions. Follow up questions that are both way technical and altogether meaningless.

Anyway. Almost 500 plays now! Glad people enjoyed it. :)

I got this one wrong.
... supposedly  :-\

Would be correct to have "it varies" answer.
But I could see how it would be confusing to noobs.

Yeah. Plus, the idea is to promote BTC to people who don't know about it ;)