Ethereum aims to enable arbitrary social contracts and decentralized applications by providing a platform for developers to build and run smart contracts using a blockchain. Unlike Bitcoin, ethereum transactions can contain data that triggers rules in smart contracts which are computer programs that can send messages and even create new contracts. Developers use a programming language like Serpent to write smart contracts that will be executed across the decentralized ethereum network using a concept called gas to compensate miners for computations.

1. ethereum

2. Why ethereum
"Ethereum's purpose is to give life to the
experiments that will change society in the 21st
century"

3. What is ethereum
Social ('selfish') Software
Enables arbitrary Social Contracts

4. What is ethereum
Decentralised
Deterministic
Consensus-based
Transaction-Resolution
Platform

5. How does ethereum work
Like Bitcoin:
Block-Chain
Signed-Transactions
Consensus
Decentralised

6. How does ethereum work
Unlike Bitcoin:
Much simpler
Transactions have arbitrary data
Transactions can send messages to contracts
Transactions can create contracts

7. What is an ethereum contract
Computer program (i.e. Turing complete)
'Remembers' between instances
Can send messages to other accounts
Can create other contracts

8. What is an ethereum message
Bit like a cheque
Sender
Recipient
Ether
Data
Gas limit & gas price

9. What is ethereum gas
Computation “energy”
Pays miners for trouble
Places hard limit on computation to avoid
Halting Problem

10. What does that mean
Internet: Digital Communication
Facebook &c.: Social Networking
Bitcoin: First Internet-based social contract,
implemented a currency
Ethereum: Generalised social contracts:
Social Digital 'Law'

11. Law
Contract specifies the:
Rules of interaction
i.e. How one's actions change one's situation

12. So
Alt-coins galore!
(e.g. namecoin in 2 lines of code)
But so much more...

13. Where will it end
Trust.
Transparency.
Anonymity.
And who knows...
Maybe fewer lawyers & bankers ;-)

14. ethereum
Proof-of-Concept V
Web-Tech API
Mutan, Serpent, LLL
Explorer, Debugger
Out soon!

16. ethereum
Tiles
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Pane
By avsa

17. Tiles
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