There's a stackexchange with technical answers to most of these questions, such as: http://ethereum.stackexchange.com/questions/191/how-can-i-securely-generate

There's a stackexchange with technical answers to most of these questions, such as: http://ethereum.stackexchange.com/questions/191/how-can-i-securely-generate-a-random-number-in-my-smart-contract http://ethereum.stackexchange.com/questions/191/how-can-i-se... For #3, an introduction is: https://blog.ethereum.org/2015/12/24/understanding-serenity-part-i-abstraction https://blog.ethereum.org/2015/12/24/understanding-serenity-... and the improvement proposal is: https://github.com/ethereum/EIPs/issues/28 https://github.com/ethereum/EIPs/issues/28 For #1, there are checksums now, but the more interesting question and challenge is how would a decentralized registry/DNS be designed, that has reasonable anti-incentives for squatters? https://github.com/ethereum/EIPs/issues/26 https://github.com/ethereum/EIPs/issues/26