Topic: PechaKucha: 20 answers to the question "What is bitcoin?" (Read 1170 times)

i first read "Pikachu" ...gg

Thanks Icardi09.  Would you mind editing your previous post to remove my email address? I posted it here by mistake and I don't want it to be available to spammers.

Long before bitcoin existed, the open source community has used the term 'fork', to refer to the act of creating a new code base that is mostly a clone of an existing code base. The use of fork is accordingly proper.

Yes. Thanks for your feedback. It is greatly appreciated This is not intended to be stand-alone material. Just some warming up to trigger questions. I hope that after the quick presentation there is time for discussion, address open questions and talk about the aspects that catch attention of the participants.

i know you dont intend it to be OFFICIAL intro material. but anyone new to bitcoin reading it 'could' be UNOFFICIALLY educated by you, which if incorrect 'could' leave users with more questions than answers.

plus there is no OFFICIAL intro. as your own words say anyone can get involved. so even your slide could be used.

which, with saying that. overall your slides are atleast above average and useful in many ways hence me prefering to help tweak it. rather than dismissing it.

even if i do prefer to criticize rather than congratulate. overall you done a good job. its just simple, straight to the point, no geeky-techno waffle.

Thanks remotemass, franky1, logger for the corrections

It was not my idea to provide introductory material, as one of my friends has already a presentation for that. I wanted to give 20 different answers to the question "What is Bitcoin?"

I hope it can be used to start a discussion and listen to different points of view.

Nice. Didn't proof read the whole lot, but slide 20 should be Ongoing work (add the g). Slide 21 should be 'is an experiment, no one knows how it will turn out'

Some of it is also very technical if you're pitching this to newbies.
Overall nice!

i liked it, but as i always seem to do, i like to straighten out inconsistancies and issues.... and as such:


forking is the act of taking the current history of the block chain, and moving it in a different direction. (basically the new blocks that are different to the main chain after the fork but contain the true history of the prefork). maybe its better to say "you can utilise existing code to make alternative coin"

as that whole line makes it sound that bitcoin is insecure and bitcoin can be manipulated by a single person to produce billions of true bitcoins. where it should read as anyone can make their own altcoin based on a copy of bitcoins protocol code that has been customised.

I liked it.
Note that you missed a letter ("d") in one of the words ("an("d")") of the last slide.

Hope    PechaKuchas in other countries will pick up bitcoin theme

Mmm it works for me on ubuntu chromium and firefox. Also on my android device. Use the arrows (or slide your finger on the android screen) to move from one slide to the next. I used "remark" to create the slides.

Anyway, this is the raw content in markdown

(Edited to include the correction pointed by remotemass, franky1, logger)

# PechaKucha: 20 answers to the question "What is Bitcoin?"

jaume at satoshi dot cat

(Hit the spacebar or the arrow keys to move to the next slide)

CC-BY

Thanks to BCT users: remotemass, franky1, logger

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# Hobby

* There is no limit to the amount of time you can waste when you get into Bitcoin
* It can be highly addictive. It can completely take over your life. Better take it easy.

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# P2P Network

* Bitcoin is a P2P internet network, just like bittorrent.
* The nodes connect to each other to exchange information.
* Resilient. Difficult to censor.

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# Community

* It is a community-driven project.
* Some smart guys designing the architecture in public forums.
* Everyone can participate: code, mine, offer services, teach, or just be a fan.

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# Currency

* In some ways, it is like money.
* Money that you can use on the internet.
* You can buy stuff, pay for services and make donations.
* A global internet currency that you can change for local currencies.

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# Internet technology

* Just like email, IRC or the web, Bitcoin exists in the internet.
* It is available wherever there is internet.

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# Protocol

* There is a set of rules or *protocol* for those that want to be part of the game.
* If you don't follow the rules, you are not in Bitcoin.
* The rules are set and enforced by the community in a somewhat meritocratic way.

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# Software

* Bitcoin is free libre open source software.
* You can utilise existing code to make an alternative coin.
* You can audit the code and contribute.

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# Consensuated Distributed Database

* All the full nodes share all the transactions of the history of Bitcoin.
* They all agree in the same history.
* Consensus is reached by voting with *work*.

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# A Blockchain

* The transactions are organized in blocks.
* The blocks are organized in a chain.
* A new block is added every 10 minutes approximately.

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# A mining lottery

* The miner that finds the block is rewarded with coins.
* It is a lottery in which the chances of winning are proportional to the hashrate of the miner.
* The miners keep the network secure with their work.

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# A coin generation algorithm

* The supply of money is known by everyone in advance.
* Currently 25 new fresh coins are generated every 10 minutes.
* The coin generation rate halves every four years.
* Some 21,000,000 coins will be generated in total.

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# A decentralized economy

* There is no central entity that controls Bitcoin.
* The control is distributed and in the hands of the community.
* It is our money. And we control it.

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# Payment method

* It is a payment method that cannot be censored.
* I can send money to Iran or to WikiLeaks, no matter what goverments or banks say. No one can stop me.
* You don't need a bank account or passport. No paperwork or registration.
* Just internet connections. Even robots can have bitcoins and make payments.
* Non-reversible. When a payment goes into the blockchain, there is no way to take it out of there.

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# A transaction graph

* The outputs of a transaction are the inputs of another transactions.
* It is possible to follow the money and make connections as all the information is public.
* The Bitcoin addresses pariticipating in the transactions are pseudonymous.

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# A secure time-stamping system

* We know when each transaction occurred.
* The depth in the blockchain reveals the order in which all the transactions have occurred.
* You can use it for other stuff, such as to prove that you did your homework in time.

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# Public-Private key pairs

* Bitcoin uses well known cryptography
* Elliptic Curve Cryptography is used for key generation.
* Transactions send money to public keys and private keys are needed to spend those outputs.

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# Market roller coaster

* Bitcoin is traded for other currencies in markets.
* The prices change quite a bit because other currencies are not very stable.
* The price of the dollar dropped some 98% compared to bitcoin in 2013.

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# Original paper

* The original paper and the first implementation were produced by Satoshi Nakamoto.
* Satoshi chose to remain anonymous.

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# Ongoing work

* Bitcoin is continuously evolving.
* There are some open challenges such as the growing size of the blockchain.

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# Experiment

* Bitcoin is an experiment and no one knows how it will end.
* So far it has kind of worked for some years.
* Join us and be part of it!

they will not know the real about bitcoin . they not follow cryptogrpahy as well.

Me too , you'd better post the content to here

  not working, man ...

The local PechaKucha organizer wanted a talk about Bitcoin. PechaKucha is an event with presentations of 20 slides lasting 20 seconds each.

I always thought that Bitcoin is many different things. So I tried to give 20 answers to the question "What is Bitcoin?"

The slides with the answers are here:
http://jaume.barcelo.cc/slides/2014-08-08-bitcoin-pechakucha.html#1

Edit: Hit the spacebar or use the arrows to move between slides.