My bitcoin talk

[pancake]

A month ago I did a talk on Bitcoin, I published the slides but forgot to post them on this forum O:)

I wish it may interest you. Feedback is welcome

http://lolcathost.org/b/bitcoin-talk.pdf

[Coinabul]

Needs a bit more organization and simplification. More examples too.

Where did you give the talk?

[pancake]

Needs a bit more organization and simplification. More examples too.

Where did you give the talk?

I did the talk at ud4kamp. a hacker meeting in Euskadi. http://udakamp.hackinbadakigu.net/

I will do another talk in Barcelona the 15th of September, but I'll redo the slides because there will be fewer time there.

[softwareseller]

A month ago I did a talk on Bitcoin, I published the slides but forgot to post them on this forum O:)

I wish it may interest you. Feedback is welcome

http://lolcathost.org/b/bitcoin-talk.pdf

A 800MH/s solves a block every 2 days or so.
How old is this slide?

[pancake]

A 800MH/s solves a block every 2 days or so.
How old is this slide?

That's based on my experience few months ago testing different pools. This may change along time and it's probably not exact. But maybe you can provide a better aproximation to this value.

Maybe we can assume time between solved blocks / network power as a proper proportion to know how many time it takes to solve a block having X hashing power.

[Boussac]

Sorry I stopped reading on the intro slide: "uses RSA crypto" ?
You meant ECDSA crypto, right ?

[pancake]

Sorry I stopped reading on the intro slide: "uses RSA crypto" ?
You meant ECDSA crypto, right ?

Oops. epic fail

Thanks for spotting that. I will upload the new slides and the source code of them asap.

[Stephen Gornick]

A month ago I did a talk on Bitcoin, I published the slides but forgot to post them on this forum O:)

I wish it may interest you. Feedback is welcome

http://lolcathost.org/b/bitcoin-talk.pdf

That would be something great to see on the CoinDL eBooks.  It can listed as fixed price, pay what you want, or no charge.

[aq]

A 800MH/s solves a block every 2 days or so.
How old is this slide?

That's based on my experience few months ago testing different pools. This may change along time and it's probably not exact. But maybe you can provide a better aproximation to this value.

Maybe we can assume time between solved blocks / network power as a proper proportion to know how many time it takes to solve a block having X hashing power.

FYI, 800MH/s got you 1 Bitcoin every 2 days, not a whole block (currently 50 Bitcoin)

[kwukduck]

Also your validation times with and without fees are slightly off i think

[pancake]

Thanks for the feedback. My apologies for the mistakes O:)

I'm still a newbye here and I had little time to prepare the slides (the day before), so I put some wrong information on it

I have re-uploaded the pdf with the fixes reported in this thread. Check it out and let me know if it's fine now.

http://lolcathost.org/b/bitcoin-talk.pdf

About the solved block per hashing power dilemma.. I've removed that statement as long as it's something that will change on time, and by checking the blockchain.info charts I verified that a block is solved every 10m or so.. and the total reported hashing power in the network is now about 16.000 GH/s.

I'm not sure if solving a block scales in a linear form with the hashing power or if it's logaritmic/exponential. Afaik if you don't have a lot of hashing power it is non profitable to mine alone. Am I right?

See
http://blockchain.info/stats
http://blockchain.info/charts/hash-rate